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1. USB Host 3 USB Host Controller Controller aid FIG 3b Patent Application Publication Sep 25 2008 Sheet 4 of 4 US 2008 0235520 A1 Chent Driver Software Universal Serial System Bus Driver USBD Software Universal Host Controller Driver HCD Scope Of UHCI Hardware USB USB Device FIG 3c US 2008 0235520 Al TRANSPORTABLE CONFIGURABLE DATA CARRIER FOR EXCHANGING DATA BETWEEN ELECTRICAL DEVICES AND METHOD THEREFOR 0001 The present invention relates to a transportable data carrier for exchanging data between electrical devices and to a method therefor according to claim 1 or 5 0002 The portable information media with single control and programmable hardware memory for storing and pro cessing information are well known Such information media are being used for example as credit cards bank cards access cards etc In order to improve such portable informa tion media which is multifunctional adaptable and more secure against external manipulation in DE 28 58 818 C2 an information media is known in which the control is based on a microprocessor connected via address data channel to the programmable read write memory and in which specific area of the programmable memory the external access is being blocked by the microprocessor and the reading and writing within the information media are free The microprocessor has one control module one arithmetic module device for reading the program2. The use of a communication processor gives this invention the advantage that for example a standard service interface RS 232 can be made available and that the control unit is not engaged with computing power for the purpose of conducting analyses such as the synchronization of data or parameterization of data transmission In practice the limi tation ofthe requirements for the establishment ofthe control unit makes up for the overhead costs related to the commu nications processor 0030 For the purpose of flexible power supply is in accor dance with claim 3 a power supply connected to said inter face circuit 0031 The flexible power supply large supply area is at any time adaptable to the connected device without requiring at the same time for new dimensioning of the power supply system For example when using digital tachographs the portable data device is charged on one part via the on board power supply network 24 12V via the tachograph of the same vehicle and on the other part via an adapter to the USB port 5 V of the PC laptop 0032 In one embodiment of this invention in accordance with claim 4 said communication functions and or applica tion programs are not fixed but on the basis of a control unit which is freely programmable and optimized in terms of communication functions 0033 This alternative method according to the invention has the advantage that the development the production and the distribut
3. socket of the digital tachograph it is possible that by means of button T to selection downloadable input data units This is beneficial in order to reduce the download time to a minimum In this case of application the data can be as follows speed activities over a certain period of time and other events recorded in the digital tachograph data units 0061 Via four LEDs A single indication a feedback is provided to the users concerns the selected function Download unit units the data download status end of unit download and a message of general error This is achievable via lightning of LEDs and through different LED frequencies 0062 Inthe data memory SP stored data are identified with an ID code Registration and Date Deletion of the data from the portable data device IT is not possible 0063 The user manual and the fault tolerance provided by the software of the control unit ST prevents any further user error 0064 The reading of the portable data device IT is carried out via an adapter card for example on the PC as briefly described below US 2008 0235520 Al 0065 Through a PC software not standard the entire contents or even individual units of the data memory SP can be requested and controlled via an adapter card 0066 Deletion of transmitted memory units deletion of unnecessary data units from the data memory SP is possible only from the PC to enable the easy provision of external services 0067
4. Internet via the mobile telecommunication network The first end devices may be mobile wireless telecommuni cation modules Personal Digital Assistants cameras print ers MP3 players etc Second respectively additional end devices may be external storages mobile phones cameras MP3 players scanners printers and keyboards for mobile phones The transfer of the drivers is not limited to the end devices with USB outputs and can be done to other wire or wireless end devices US 2008 0235520 Al 0014 Finally WO 2004 055635 A2 discloses a method for data security of the mobile phone data by which the portable memory can store the data from the SIM card Subscriber Identity Module needed to use the mobile phone in the Global System for Mobile Communication via the different networks The identification of the member of the GSM net work is done by identification code in the SIM card known by the switching centre Mobile Switching Centre located in Home Location Register The authentication process is based on comparison of the results and searches done in parallel by the SIM card and in the switching centre During the authentication process the mobile telephone receives one random number sent by the switching centre and applies specific algorithm to this number and the identification code and calculates another number When the results match the authentication of user is successful Each authentication leads to new calculation using new
5. are available or data are sent successfully 0056 Data packages can use DMA Direct Memory Access direct access to the memory ofa computer in the control unit if available for extraction and independent transfer or after receipt thereof to be stored in the memory for further operation 0057 The realization of the communication processor K is feasible as an external or an internal unit see FIG 1 as external and FIG 2 as an internal unit 0058 For theft protection the portable IT data device has a clear and unique serial number and its fixed operating pro gram can be expanded and replaced as modules The control unit ST processes the data in Hammingcode with a Hamming distance of 21 predominantly 4 and may also include encryption and decryption of the data For the purpose of data transmission there are robust method for data security A preferred method for protection is a CRC method for data security cyclic redundancy check cyclic CRC for example CRC 32 where the information words to be transmitted are divided by means of a polynomial word and the rest of the division is transferable as a mark of control On the part of receiving the accepted the information words undergo the same division and control is exerted whether the results match the marks of control 0059 The data from the digital tachograph is received under simple operation as briefly described below 0060 After inserting the portable data device IT into the
6. be connected to the digital register and the second interface USB output serial inter face can be connected to computer The switch of the por table memory can be set to positions Slave or Master and the LCDs indicate the operation mode The storage of the por table memory can be constructed as external memory inter nal flash memory programmable power independent memory or micro disk or as flash memory card The two side connections 6 pin connector or USB or flash memory connector can be protected by caps In order to extract data from the register the operator must perform the following 0007 Insert his control card in the slot of the register third interface 0008 Connect the portable electronic memory to the first interface of the register 0009 Make a connection between the register and the portable electronic memory 0010 Switch the register on and send a command 0011 End of the download 0012 The protocol is based on Master Slave the por table electronic memory is Master and the register is Slave The control data can be extracted by switching the portable electronic memory to Master via the USB interface or by pulling out the flash memory and connecting a reader 0013 Unpublished version of DE 10 2004 029 889 Al discloses a first end device for data exchange with at least one second device using executable apparatus drivers stored in the program memory of the first end device The base is Universal Seria
7. memory read write and for entering data parallel address data channels Furthermore a program memory is used the contents of said program memory con trols the work of the microprocessor The control module of the microprocessor controls the serial interface for extraction and displaying the data connected to the parallel two way address data channel The serial input output interface has one gate circuit and means for converting the serial informa tion to parallel one At the output there is one gate circuit controlled by a signal issued by the control module of the microprocessor via cable The reading writing of the pro grammable memory is done by a address register and a data register connected to the memory and to the address data channel The address register and the data register are con trolled by the control module via control conductors One area of the programmable memory reading writing stores the permanent owner s code which is being compared to the one externally entered When the codes do not match error infor mation and additional information about the actions are stored in the memory Ifthe codes match means for storing an access code are used The error information and the access code are stored in different storing areas whereby any exter nal access is denied to the first area internal and external reading and writing operations in the information media are permitted in the second are and only internal and external readin
8. or to USB FireWire port or Bluetooth etc The internal storage facility can have either different kinds of memory or host data storage into different memory areas in order to save separately for example data from several different mobile phones or mobile phone sub scribers The access to these different memory data storage areas can be secured via a password 0015 As shown by the foregoing description of the present state of the art there is a variety of transportable data carrier known designed to meet the requirements of different fields of application The communication between the data carrier and the electric devices is regulated by means of speci fication protocols which requires as a rule specific hardware and software components together with some expensive com ponents particularly adapted to communication require ments Therefore the costs of check up maintenance and recording of data for example for use with digital tacho graphs are considerably high The so called Memory Stick USB well known from the world of personal computers makes no allowance for Master operation nor an interactive input to read the data Likewise there is no effective security mechanism to protect from unauthorized access to the data Insufficiently consideration is paid to the development of an Sep 25 2008 open access system in particular to provide easier and more secure communication mechanisms For example the con nection and co
9. possible to delete the data 0035 This further method has the advantage that the data received from multiple devices in the portable data device can be recorded error free and it allows no modification in the data content but only exchange of data or complete dele tion after downloading 0036 In further development of this invention in accor dance with claim 7 said display is designed as LEDs and wherein by flashing lights at different frequencies a feedback to the user is provided concerning selected functions down load status end of a downloaded data block and an error message By consultancy to the user manual and by using LEDs it proves to be a quite simple and inexpensive way to prevent user errors Therefore the portable data device as described under this invention is extremely suitable for both inexperienced and untrained users 0037 Ina preferred alternative method of the invention in accordance with claim 10 data downloaded from the respec tive device are stored in data blocks in said data memory and wherein said memory management secures against unautho rized overwriting in said data memory warns the user in case of the insufficient memory capacity and in case of full data memory allows no further transfer of data 0038 This further alternative method has the advantage that even an inexperienced user can securely operate the portable data device as subject of this invention and be safe from any user err
10. values thus eliminating the manipulation by other persons In order to secure at least the data on the SIM card and other personal data the mobile phone subscriber shall take out upon first form of executing WO 2004 055635 A2 the SIM card from the mobile phone shall place the portable disks on the SIM card of the mobile phone and by means of the keyboard and the display of the mobile phone shall download the data secured on the data carrier shall remove it from the SIM card bearer and then shall place back the SIM card of the mobile phone For this purpose the data device has steering system with a program mable read only memory ROM additional memory such as the Electrically erasable programmable read only memory EEPROM the operative memory namely Random access memory RAM and an interface circuit I O and contacts to connect with the power supply Vcc GND of the mobile phone A second alternative of operation of the portable data device particularly a major shaped casing and a button to trigger the process of data download respectively to secure the downloaded data from overwriting and the respective indication means there are also three different interface cir cuits namely a slot for the introduction of the SIM card an interface to host the adapter module for connecting the mobile phone and an interface to connect a computer or a PDA Personal Digital Assistant or to a mobile phone in accor dance with the CDMA standard
11. 42 FIG 1 the functional block diagram of a preferred embodiment of the invention US 2008 0235520 Al 0043 FIG 2asketch showing from the top and the bottom view a preferred embodiment of the invention concerning the portable data device and 0044 FIGS 3a 35 and 3c the interaction between the Host PC and the device for example USB stick the USB driver framework and the scope of performance based on the example UHCI common to the state of the art 0045 FIG 1 shows a preferred embodiment of the inven tion concerning the portable configurable data carrier IT which enables the user to exchange data from any other device onto this portable data device to transmit this data and to re read and display it again on another device Although the embodiment of the invention solution is described herein below as an exemplary use with a digital tachograph see FIG 2 it is allowable to apply this procedure of the portable data device also with other devices having the appropriate inter faces It is due to the fact that the invention concept idea is based on the configuration capacity and the potential a single error handling device allows and the easy adaptation to the particular circumstances and without involvement of the invention and modification of the basic concept In compari son to the USB interface the invention of the portable data device IT does not have universal interface and does not need pushdown storage Stack The
12. 9 a data memory for temporarily storing the data fed by the respective device 0020 input and display for user controlled operation and user guidance 0021 and a control unit that is connected to the same and is provided with a program memory for executing application programs and communication functions such that an authentication process is carried out the transfer mode master slave and the direction of the data transfer are automatically detected and the adequate transmission type speed protocol for downloading the data are selected accord ing to said authentication and identification processes with the aid of said control units for configuration purposes when said data carrier is connected to the respective device and memory areas of said data memory can be read in and out and deleted only once the authentication process has been suc cessful 0022 This design of the transportable configurable data carrier according to the invention has the advantage that due to the flexible mechanisms of communication it is easy to use in a large range of applications and system architectures in a surprisingly simple and cost effective manner In addition it worth noting that even an inexperienced user can operate the transportable configurable data carrier for exchange of data without any risk of unauthorized data access or user error 0023 Furthermore this object is solved by a method for data exchange between electrical devices with
13. The acquiring PC software makes no changes to the data content The data content can be used to control analysis in a concise manner 0068 For optimal data transmission the following mea sures are provided for in compliance with this invention 0069 Automatic detection of the transfer mode Mas ter Slave and selection of adequate transmission type speed protocol 0070 The data are stored in secure packages 0071 The communication protocols include com mands to negotiate the best transmission speed 0072 To ensure the data security of transported data and to ensure against unauthorized access by third persons the fol lowing measures are provided for in compliance with this invention 0073 The data will be stored along with error protec tion and error correction methods 0074 The access to data from the outside is only pos sible by means of an electronic code authentication 0075 The Software Download can be successful only after successful authentication 0076 The software stored in the programmable memory PS of the portable data device IT ensures that the data is transported but remain unchanged 0077 Deletion of data in the data memory SP of the portable data device IT is allowable only after successful authentication 0078 In order that the area of application of the portable data device as subject of this invention to extend as much as possible in compliance with the invention it is possible to ac
14. US 20080235520A1 a2 Patent Application Publication o Pub No US 2008 0235520 A1 as United States Becker et al 43 Pub Date Sep 25 2008 54 TRANSPORTABLE CONFIGURABLE DATA CARRIER FOR EXCHANGING DATA BETWEEN ELECTRICAL DEVICES AND METHOD THEREFOR 75 Inventors Joachim Becker Jena DE Gerald Kraft Furth DE Heinrich Thoma Dentlein DE Correspondence Address RANKIN HILL amp CLARK LLP 38210 Glenn Avenue WILLOUGHBY OH 44094 7808 US 73 Assignee ELEKTRONIC THOMA GMBH Dentlein DE 21 Appl No 12 066 989 22 PCT Filed Sep 1 2006 86 PCT No PCT EP2006 008561 371 c1 2 4 Date Apr 30 2008 30 Foreign Application Priority Data Sep 16 2005 DE 10 2005 044 483 0 Publication Classification 51 Int CI GO6F 12 14 2006 01 GO6F 12 00 2006 01 HOAL 9 28 2006 01 52 U S Cl 713 189 711 115 726 27 711 E12 092 57 ABSTRACT Adequately designed transportable data carriers are used for different applications In order to allow for individual par ticularly automatically adjustable interactive configuration and allow also inexperienced users to rapidly transfer data the invention relates to a data carrier comprising a single interface circuit to be connected to the respective device a data memory for temporarily storing the data fed by the respective device input and display means for user con trolled operation and user gu
15. a control unit and a memory carried out by a portable data carrier compris ing a single interface circuit a data memory for temporarily storing the data fed by the respective device input and dis play and a control device provided with a program memory for executing application programs and communication func tions according to claim 5 whereas for configuration pur poses the control units US 2008 0235520 Al 0024 an authentication process shall be carried out upon connection of said data carrier to the respective device 0025 an automatic detection of a transfer mode Mas ter Slave and of the direction of the data transfer shall be carried out 0026 a selection of the adequate transmission type speed protocol for downloading the data shall be carried out and only once the authentication process has been successful memory areas of said data memory can be read in and out and deleted 0027 The method according to the invention has the advantage that the security conditions in all aspects are ful filled particularly by the transparent transfer of the authenti cation data The development the production and the distri bution of such portable data carrier can be independently performed regardless of the specific purpose of use 0028 In one embodiment of this invention in accordance with claim 2 said control unit is connected to or have a communication processor memory management and memory access control 0029
16. a the respective software 0113 Indication of full data memory in case that memory space is available only for a completed data tachograph 0114 No change in data content is possible pure trans port 0115 With the portable data device IT which is subject of this invention the data collected on the portable data device IT viaits Master function are redirected to the memory SD so that the data is protected from unauthorized access In order to read it the portable data device IT is connected to the adapter andto the Slave and then it can be accessed through a program with the appropriate configuration Through the same data transfer process in Slave mode the operating software ofthe Sep 25 2008 portable data device IT can also change For example during the initial commissioning the portable data device IT can adopt a specific function by pressing the button T In order to enable according to the number and or duration of operations of the input function the button T to double the number of different control commands it is possible to change update the PC operating software of the portable data device IT So when the user connect the portable data device IT to the device operating in dialogue mode between the control devices it is possible to carry out automatic configuration of the portable data device IT interface along with the proce dural steps of authorization automatic detection of the trans fer mode Master Slave in
17. ares and processes additionally the data about the vehicle and the data about the work time There is a memory for control data connected to the output ofthe second processor for storing control data about the driver A chip or magnetic card is provided to be inserted in the data entering and reading module This card chip is meant to facilitate the US 2008 0235520 Al driver and to increase the security of the operations A service card might be useful for the technician of the vehicle for expanded access to maintenance and adjustment In addition cards with different levels of access could be provided for controlling bodies for old data control data or data about the vehicle Finally a so called company card can be provided for extraction and storing data during work The cards of both drivers have a read only memory storing the data about the disconnection of the ignition and the control data The reg ister can rewrite the control data to the control memory of the card and to read it The register has temporary control memory with input connected to the reading device of the control memory of the driver s card and output connected to the writing device The register has controls for storing the work time data in the temporary control memory and constant writing for the time during which the card is inserted in the register The control memory can include array of rewritable separately accessed storing areas for storing complex data inclu
18. cept data from several digital tachographs For this purpose the memory management SV has the following functions 0079 The data are recorded in the data memory SP according to their source of origin 0080 The data reading specifically allows this data to be postponed in the data storage SP 0081 The memory management SV prevents any acci dental overwriting during the data receipt operation in the digital tachograph 0082 The memory management SV warns the user of insufficient memory capacity for storage and in the case of full memory SP does not allow further data accep tance 0083 Furthermore in accordance with the invention through a special PC software of the current program the portable data device cam at any time adapt to or revise com pletely its operational mode to meet the IT needs of the users or the groups of users In particular the software of the por table data device can be modularly expanded or replaced whereas the portable data device is identifiable through a unique serial number which can only be set by the manufac turer The serial number of the portable data device is perma nently stored with the manufacturer ID theft protection For encryption and decryption of data a dynamic key or an encrypted container can be used The data are preferably grouped into Data UniT according to their designation whereas several Data Units can be grouped together to form Sep 25 2008 Container Unit In ord
19. cluding the data transfer device and depending on it selection is made on the relevant trans mission speed protocol for the downloading of data Due to the configurability on one side in the case of errors a quick correction is possible whereby the portable data device IT is setting in the loading condition and on the other side a wide variety of application is possible For example during authentication of the portable data device IT it is possible to use computer connection to the USB interface and auto matic encryption of data so that to eliminate the input of a password or in the home banking interface HBCI while downloading data from various cash registers move from one cash register to another or for the purpose of inventory place ment and subsequent analysis or for the security personnel in relation to the electronic card watches and for the authenti cation with the access control systems 0116 Ina further design ofthe invention the insertion ofa control device card police in the digital tachograph can be eliminated whereas the required data and the programmable memory functions in the PS are stored the communication functions and applications are not preliminarily fixed but are rather based on a freely programmable and communications functions ST in order to implement extensions or entirely new applications by software update and the security of data can be checked up for correctness under the method Reed So lomon u
20. cooperation between the Host PC and the equipment for example USB at both logical and physical levels is shown on in FIG 3a FIG 35 shows the structure of the software stacks under the example of drivers whereas FIG 3c shows the connection between the USB controller to the client which is specific and implemented in interfaces 0046 UHCI Universal Host Controller Interface 0047 OHCI Open Host Controller Interface 0048 EHCI Extended Host Controller Interface USB 2 0 whereas based on the example of the example of UHCI the scope of action is also depicted 0049 Hence the USB interface is an open interface with one USB stack a variety of device drivers and interfaces and one agreed USB protocol A USB connection is always com posed of a Master PC and a Slave Device In case those two Master devices are running together for example a PC and a laptop or a PC anda PDA the protocol will be extended This extension is called USB OTG After the establishment of contact the two Master devices clarify via the protocol which can be Master and which can deal with the function of Slave 0050 The data device IT shown in FIG 1 and FIG 2 is equipped forthe exchange of data with the digital tachograph not shown in the drawing with a single interface circuit I a data memory SP for temporarily storing the supplied digital tachograph data input and display means T A for the user control and user interface for data exc
21. ding at least the sum of times and the moments of reg istration Before the removal of the card the stored data can be transferred to the control memory thus identifying the driver If the same driver drives another vehicle his work time data will be registered in the card which always contains updated balance of the work time corresponding to the regu lations Comparable memory is provided for the work time data and for connection between them and the indications The register is for separate registering of the control data In addition the comparative memory stores at least one set of comparative data about the dates of positioning defining the territory of validity The processor processes the data about the condition of the vehicle in accordance with the actual position of the vehicle Together with GPS defining the zones of validity for certain work times the work time can be adjusted automatically to other local regulations Other set of norms could be activated manually when passing a state bor der In both cases the system calculates the work time for the new system and helps the driver freeing him of complex calculations and new knowledge The adjustment ofa system for secure data storage and in particular for selective access to the areas of the control memory for reading or writing to the comparative access devices are provided including elec tronic reading correction card or two cards with different access functions The correc
22. er to ensure the security and confiden tiality of these Data Units and Container Units they shall be transmitted recorded and encoded The range of encryption can be on Data Unit or on entire Container Units containing different data with different level of importance The latter procedure has the advantage of fast encryption and its disad vantage is that the entire Container Unit needs to be deci phered even if only certain data areas required For optimal data transmission invention are the following measures 0084 Automatic detection of the transfer modules Master Slave and selection of the appropriate trans mission speed protocol The data are stored in secure packages 0085 The communication protocols include com mands to negotiate the best transmission speed 0086 To ensure the data security of transported data and to ensure against unauthorized access by third persons the fol lowing measures are provided for in compliance with this invention 0087 The data will be stored along with security and anti error measures 0088 The access to data from the outside is only pos sible by means of an electronic code authentication 0089 The Software Download can be successful only after successful authentication 0090 The software programmable memory PS of the portable IT data device ensures that the data is trans ported but remain unchanged 0091 Deletion of data in the data storage SP of the portable IT data d
23. evice is allowable only after successful authentication 0092 In order that the area of application of the portable data device as subject of this invention to extend as much as possible in compliance with the invention it is possible to accept data from several digital tachographs For this purpose the memory management SV has the following functions 0093 The data are recorded uniquely in the data memory SP according to their source of origin 0094 The data reading specifically allows this data to be postponed in the data memory SP 0095 The memory management SV prevents any acci dental overwriting during the data receipt operation in the digital tachograph 0096 The memory management SV warns the user of insufficient memory capacity for storage and in the case of full data memory SP does not allow further data acceptance 0097 Furthermore in accordance with the invention through a special PC software of the current program the portable data device IT can at any time adapt to or revise completely its operational mode to meet the device IT needs ofthe users or the groups of users In particular the software of the portable data device can be modularly expanded or replaced whereas the portable data device IT is identifiable through a unique serial number which can only be set by the manufacturer The serial number of the portable data device IT is permanently stored with the manufacturer ID theft protection For encrypt
24. g operations in the information media are permitted in the third area By entering an appropriate program the micro processor can be configured for any desired application 0003 In order to improve and extend the functionality of the portable data processing device through two way dialog with the module connected to the device in DE 31 21 466 C2 it is disclosed that the module itself contains a data micropro cessor and memory coupling conformed by an electric conductor exchanges bidirectional and serial the data between the processors of the device and the module The memories of the device and the module have programs for bidirectional data exchange and the processor of the device operates by within the module memory contained executable programs The device is mounted inside a metal or plastic enclosure as usually used by calculators with opening for putting the module into the device The information and the Sep 25 2008 data are entered via a keyboard which can have random num ber of keys for example functional keys and the device has a display The device and the module can also function as data transmitters and receivers and the respective data receiver signals the respective data transmitter its standby for transfer This is done when the receiver sets the conductor in perma nent condition which can be recognized by the data transmit ter The respective data receiver signals to said respective data transmitter about tran
25. hange and a control unit ST with programmable memory PS for executing appli cation programs and communication functions Furthermore the control unit ST provides for a communication processor K a memory management SV and a memory access control SZ whereas these additional components can be used also separately without amending the invention concept Finally the flexible power supply is envisaged with power supply N associated with the interface circuit I The tasks of the com munication processor K include 0051 Receiving sending data via the UART wire Uni versal Asynchronous Receiver Transmitter universal computer hardware that translates data between parallel and serial forms Sep 25 2008 0052 Confirming the transfer Parity Modes for example parity checking as simple procedure to detect transmission errors whereas a group of bits is extended with the number of parity bits with the corresponding assignment of an additional parity bits up to a straight or odd number 0053 Releasing of the main processor of I O works 0054 Caching memory data to be further transferred transmitted 0055 Signaling through IRQ Interrupt Request a hardware signal used by the devices in order to trigger the Interrupt Service Routine of the Host system Trig gering the IRQ the control unit completes all momen tary calculations secures the calculation status and deals with the priority IRQ to the parent processor if data
26. idance and a control unit that is connected to the same and is provided with a program memory for executing application programs and communi cation functions such that an authentication process is carried out the transfer mode master slave and the direction of the data transfer are automatically detected and the adequate transmission type speed protocol for downloading the data are selected according to said authentication and identifica tion processes with the aid of the control units for configura tion purposes when the data carrier is connected to the respec tive device and memory areas of the data memory can be read in and out and deleted only once the authentication process has been successful Patent Application Publication Sep 25 2008 Sheet 1 of 4 US 2008 0235520 A1 ST aie HOME muni eure FIG 1 Patent Application Publication Sep 25 2008 Sheet 2 of 4 US 2008 0235520 A1 FIG 2 Patent Application Publication Sep 25 2008 Sheet 3 of 4 US 2008 0235520 A1 Host interconnect Device i i i os bsec oa mena USB System USB Bus Interface ee Actual communicatione flow ORDRES SECUN Logical communications flow FIG 3a Message 5t m i Ruby ss t and x B E a i A E E Stream amp k a F Pipe Fl le amp y ACCESS 8 E 3 E Pipe Interfaces Command inter aces Universal Serial Bus Driver Tomo O ion E Host Host Controller Controller Driver Driver y d i
27. ion and decryption of data a dynamic key or an encrypted container can be used The data are preferably grouped into Data Unit according to their desig nation whereas several Data Units can be grouped together to form Container Unit In order to ensure the security and confidentiality of these Data Units and Container Units they shall be transmitted recorded and encoded The range of US 2008 0235520 Al encryption can be on Data Unit or on entire Container Units containing different data with different level of importance The latter procedure is the advantage of fast encryption of disadvantage that the entire container unit to be deciphered even if only certain data areas required Encryption methods and procedures can be both strict codes and methods with rolling codes Rolling codes mean that they are valid for application only over a certain period of time and then they need to be re negotiated whereas the other party should be always a step behind 0098 In practice when using digital tachographs the por table data device with input socket is about 7 cm long and nearly 2 cm wide The mechanics ofthe interface is prepared for tachographs whereas the four SMD LEDs are located on both sides of the conductor plate in order to ensure good readability when plugging into the digital tachograph four different positions 90 The adapter has the same interface as the tachograph to open more space for the small po
28. ion of such control unit can be independently performed from a specific data bus system so that it is possible to make enhancements within the communication functions respectively the applications or the addition of new communication features respectively applications via software updates which does not require the implementation of a new control unit and the option of two or more commu nication interfaces and applications can be determined by loading the software while being accessible for fully com patible and flexible combination with it This flexible struc ture of the invention control unit has significant advantages over the development through FPGAs Field programmable gate array programming or parts thereof which is a fixed wired logic Due to the flexible command set and the associ ated logic functional blocks it is possible to operate in a Sep 25 2008 significantly speedier systematical manner and to solve in parallel several independent tasks thus achieving indepen dently from the protocol high processing and transmission speed as well as permeability in both directions 0034 Inapreferred alternative method of the invention in accordance with claim 6 by means of said control unit a memory management and a memory access control in said data memory data can be stored unique by an identifier reg istration and date and wherein only by pressing a button it is possible to select downloaded data but it is not
29. l Bus On The Go USBOTG which is addition to the actual Universal Serial Bus Specification 2 0 which identi fies the difference between various devices data entering devices audio devices mass memories and communication devices The construction of the device allows data exchange between mobile end devices phones Personal Digital Assis tants mass memories printers scanners keyboards Cam corder MP3 players etc eliminating the need of intermedi ate processor Host PC The end devices themselves have double role as Hosts and as peripherals The conception USBOTG allows dynamic switching between Master and Slave see FIG 3a to FIG 35 In the specific case of company software this is firmware which remains unchanged for the duration of the device and is stored in the hard disk ROM PROM EPROM which cannot be easily replaced The unpublished version of DE 10 2004 029 889 A1 provides that the program memory of the first end device has area reserved for additional drivers In case of additional drivers the limited capacity of the program memory of the first end device must be considered and the driver must be adjusted to the preset software interface in the OS of the program memory of the first end device Thus no new registration of the first end device is needed The adjustment of the driver is done by special interface for example through the USB interface directly by serial interfaces or by downloading the driver from PC or
30. mmunication with the digital tachographs are performed always at a data rate of 9600 Baud on other hand with the USB interface as with the subject of EP 1 437 690 Al the interconnected devices can be power supplied through a quadrifilarly bus cable and for example with the version USB 2 0 the data transfer rates can reach up to 480 Mbps see FIG 3a FIG 3c Therefore the practice does not know procedures or portable data devices which in spite of being easy and simple to use their range of application is quite variable and therefore there is possibility for restrictions ofuse and user groups while ensuring individual particularly automatically customizable interactive communication In particular this is important because the data processing equipment and the accessories thereto has been for long con sidered a highly advanced rapidly developing manufacture industry which very quickly pick up improvements and sim plifications and implement those 0016 Object of the invention is to design a portable data carrier and method therefor to allow for individual particu larly automatically adjustable interactive configuration and allow also inexperienced users to rapidly transfer data 0017 This object is solved by a portable data carrier for data exchange between electrical devices with a control unit and a memory according to claim 1 comprising 0018 a single interface circuit to be connected to the respective device 001
31. onnected to said interface circuit 1 4 Data carrier according to claim 2 wherein said commu nication functions and or application programs are not fixed but on the basis of a control unit ST which is freely pro grammable and optimized in terms of communication func tions 5 Method for data exchange between electrical devices with a control unit and a memory carried out by a portable data carrier IT comprising a single interface circuit 1 a data memory SP for temporarily storing the data fed by the respective device input and display T A and a control device ST provided with a program memory PS for executing application programs and communication func tions whereas for configuration purposes the control units ST an authentication process shall be carried out upon connec tion of said data carrier IT to the respective device an automatic detection of a transfer mode Master Slave and of the direction of the data transfer shall be carried out a selection of the adequate transmission type speed proto col for downloading the data shall be carried out and only once the authentication process has been successful memory areas of said data memory SP can be read in and out and deleted 6 Method according to claim 5 wherein by means of said control unit ST a memory management SV and a memory access control SZ in said data memory SP data can be Sep 25 2008 stored unique by an identifier regist
32. or a rolling encrypted container is applied whereby the data are grouped into a data unit and a number of grouped data units are grouped into a Container Unit and wherein the range of encryption covers said data unit or said entire container units YO k k k X
33. ors 0039 In the process of further development of this inven tion in accordance with claim 11 for encryption and decryp tion of data a dynamic or a key or a rolling encrypted con tainer is applied whereby the data are grouped into a data unit and a number of grouped data units are grouped into a Container Unit and wherein the range of encryption covers said data unit or said entire container units 0040 This further method according to the invention development enables through the different procedures for data encryption and decryption in surprisingly simple way to achieve targeted and adaptive adjustment including to reduce the number of any repetitions that may be needed and hence to reduce the total rate of on block errors According to the invention the security ofthe connection in particular the transfer of data from the direction dependent transmission of preset variable data blocks shall be performed via such tar geted and modified repetition while taking into account that the transfer of data and security of data blocks depends also on the data content Moreover for the second repetition the encryption and the decryption can be optimized to those data structures which under the first encryption or decryption is not particularly involved etc 0041 Further advantages and details may be learned from the following description of preferred designs ofthe invention taking into account the drawings which show 00
34. ration and date and wherein only by pressing a button T it is possible to select downloaded data but it is not possible to delete the data 7 Method according to claim 5 wherein said display A is designed as LEDs and wherein by flashing lights at different frequencies a feedback to the user is provided concerning selected functions download status end of a downloaded data block and an error message 8 Method according to claim 5 wherein for anti theft protection of said data carrier IT a unique serial number is assigned and wherein an operating program of said data carrier IT can be modular expanded or exchanged 9 Method according to claim 5 wherein said control unit ST processes the data stored in said data memory SP in Hamming code at a distance of Z1 and performs the data encryption and decryption and wherein for data transfer a robust method for data security is used in particular a CRC method for data security cyclic redundancy check cyclic CRC 10 Method according to claim 5 wherein data downloaded from the respective device are stored in data blocks in said data memory SP and wherein said memory management SV secures against unauthorized overwriting in said data memory SP warns the user in case of the insufficient memory capacity and in case of full data memory SP allows no further transfer of data 11 Method according to claim 5 wherein for encryption and decryption of data a dynamic or a key
35. rtable data device According to the invention the portable IT data device has flexible power supply large range of supply On one side it is charged via the on board 24 12V network through the tachograph from the vehicle adapter while on the other hand it runs through the adapter of the portable IT data device from the USB port 45 V on the PC 0099 The design ofthe portable data device IT according to the invention as described herein above is characterized largely with flexible configuration and as a whole meet the following requirements 0100 Minimal size and weight for a pocket or a key chain 0101 Robust and sustainable design 0102 A single interface for different baud rates adap tive baud rate 0103 Its applications are variable in shape via down loadable software 0104 Feasible data exchange depending on the task in Master or Slave mode 0105 User interface available 0106 Minimal keyboard and display LED for easy operation 0107 It supports different communication protocols for data transfer to the respective record targets 0108 It allows for a mode of operation n to m n data sources m data exhaustion 0109 Itsupports the data management and the manage ment in mode n to m 0110 It allows for encrypted data output 0111 Data contents of several devices are error free recorded on the stick 0112 Prevention of accidental deletion while operating the DATA stick is ensured vi
36. sed for memory data or data transmissions among others 1 Portable data carrier IT for data exchange between electrical devices with a control unit and a memory compris ing a single interface circuit I to be connected to the respec tive device a data memory SP for temporarily storing the data fed by the respective device input and display T A for user controlled operation and user guidance and a control unit ST that is connected to the same and is provided with a program memory PS for executing application programs and communication functions such that an authentication process is carried out the trans fer mode master slave and the direction of the data transfer are automatically detected and the adequate transmission type speed protocol for downloading the data are selected according to said authentication and identification processes with the aid of said control units ST for configuration purposes when said data carrier IT is connected to the respective device and memory areas of said data memory SP can be read in and out and deleted only once the authentication process has been successful US 2008 0235520 Al 2 Data carrier according to claim 1 wherein said control unit ST is connected to or have a communication processor K memory management SV and memory access control SZ 3 Data carrier according to claim 1 wherein for the pur pose of flexible power supply a power supply N is c
37. smission error by setting the conductor in a condition which can be recognized by said data transmit ter and which is different from the receiving condition The conductor accumulates commands and coded information between said respective data transmitter and receiver as well as verifications and coded information between said respec tive data transmitter and receiver Finally the device has a module which can recognize a transmitted code word enabling the module to permit access to the data or programs requested by the device 0004 More and more common in the practical application is the so called digital tachograph This is due to the fact that since Aug 5 2005 all European countries except Italy and Germany enforced EU Directive 3820 85 from 21 Dec 1985 Directive for control devices in road traffic last amended on 5 Mar 2004 prohibiting the analogous tachographs regis tering in polar coordinates the speed of the vehicle the time and the work hours of the driver For example a portable electronic memory is known from WO 96 31846 A1 in the form of key holder which has control module storing mod ule and a single interface circuit The digital tachograph con tains a control module a display and output module LCD and speaker rewritable data memory for control data a power supply andan interface circuit which can be connected to the portable electronic memory The control data and namely start and end of the trip are regis
38. tered by a vibro sensor reacting to the unevenness ofthe road and stored in the memory 64 x memory and 10 trips daily equals 200 days When the memory is almost full an indication signal is gen erated tone signal and an optional blocking device is acti vated The control data is downloaded by the operator by connecting the portable electronic memory to the tachograph The right for access is checked by the control device and then the control data is transferred to a desktop or a portable computer and the memory of the digital tachograph is reset 0005 The improved version of EP 0 762 339 A2 is a tachograph with electronic memory and processing of the operational data of the vehicle which improve the control of the work time particularly in different labour time regula tions For this purpose the tachograph contains means for detecting the condition of the vehicle and generating vehicle condition data a real time clock a module for inputting the driver s data a first processor connected to the clock to said means for detecting the condition of the vehicle and to said input means for the driver s data for real time processing Further a comparative memory for constant storing of the important comparative data about the vehicle work time norms second processor connected to the output of the first processor the output of the comparative memory and to the module for the driver s data and real time signals The second processor comp
39. tion card has memory for storing the data from the register which provides secure storing of the evidence needed by the control bodies Read only memory is provided for internal and external checks of the data about the vehicle and its equipment The read only memory is con nected to the input of the processor The read only memory and the reader of the driver s card are connected to the inputs of correlation block The output of the correlation block is connected to the register Thus the data stored in the read only memory and the driver s card can be checked and verified and the result of the check can be registered The register can have aslot for electronic driver card The card can have memory for data about the driver s competence eventually for transport of hazard loads or people 0006 A similar configuration is disclosed in EP 1 437 690 A1 Here too there is portable electronic memory and digital register with control module registering module rewritable memory for storing control data first interface which can be connected to portable electronic memory second interface for reading of the drivers cards and third interface for reading the cards of the control authority police The portable elec tronic memory contains control module memory first and Sep 25 2008 second interface switch 2 LCDs and independent power supply The first interface 6 pin serial interface in accordance with RS 232 IEEE 802 11 can
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