Error Checking Patents (Class 235/437)
  • Publication number: 20110127329
    Abstract: A process for decoding machine readable coded data is provided. The coded data has a plurality of layouts which each have order n (at least two) rotational symmetry and encode a codeword of a sequence of n symbols distributed at n locations about a center of rotational symmetry of the respective layout such that decoding the symbols at each of the n orientations of the layout produces n representations of the codeword. Each representation is a different cyclic shift of the codeword and is indicative of the degree of rotation of the layout. The process includes acquiring an image which includes the coded data with an image sensor, transmitting the acquired image to a computer system, and at the computer system, identifying a layout from the acquired image, decoding the identified layout to determine a codeword representation, and determining a degree of rotation of the layout from the determined representation.
    Type: Application
    Filed: January 31, 2011
    Publication date: June 2, 2011
    Inventor: Paul Lapstun
  • Publication number: 20110084137
    Abstract: A card reader may include a reader-side non-contact communication antenna, a transfer path through which a card is transferred, a transfer mechanism to transfer the card, a controller to control the transfer mechanism, and a regulator to regulate transfer of the card. The reader-side antenna may be provided proximate to the transfer path. The regulator may be positioned such that the reader-side antenna can communicate with a card-side antenna on the card. The controller may control the transfer mechanism to move the card closer to the regulator or away from the regulator after the card has stopped once, so as to enable communication between the reader-side antenna and the card-side antenna.
    Type: Application
    Filed: February 27, 2009
    Publication date: April 14, 2011
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Junro Takeuchi
  • Publication number: 20110073647
    Abstract: An automatic testing method applied to an automatic testing system for testing a barcode identification apparatus is described. In the method, a test host is utilized to generate a barcode pattern automatically, so as to display the barcode pattern through a barcode revealing apparatus. The barcode identification apparatus reads and resolves the barcode pattern to retrieve an identification result. The identification result is returned to the test host. The test host compares the barcode information carried by the barcode pattern and the identification result, and generates a test result. The test host repetitively generates the barcode pattern for a barcode identification apparatus carried the barcode pattern and the identification result, and then generates a test result. Through the test host repeatedly generates the barcode pattern and records the corresponding test result, manual operation is not required to obtain testing data for being analyzed.
    Type: Application
    Filed: July 6, 2010
    Publication date: March 31, 2011
    Applicant: GETAC TECHNOLOGY CORPORATION
    Inventor: Hann-Huei Chiou
  • Publication number: 20110006115
    Abstract: A barcoded quality indicator operative to provide a machine-readable indication of exceedance of at least one product quality threshold by at least one product quality affecting parameter, the barcoded quality indicator including a changeable barcode including at least one material having at least one variable visually-sensible characteristic which gradually changes as a function of changes in the at least one product quality affecting parameter and a background having at least one selectable visually-sensible characteristic which is not variable or not variable in the same way as is the barcode.
    Type: Application
    Filed: November 13, 2008
    Publication date: January 13, 2011
    Applicant: VARCODE LTD.
    Inventors: Yaron Nemet, Ephraim Brand
  • Publication number: 20110006116
    Abstract: The disclosure relates to a system and a method for light beam interrogation of an optical biosensor and for monitoring a biological event on the biosensor for use, for example, in microplate image analysis. The system and method correct pointing-errors that can be encountered, for example, in scanning label-independent-detection biosensor applications.
    Type: Application
    Filed: September 21, 2010
    Publication date: January 13, 2011
    Inventors: Robert A. Modavis, Garrett A. Piech
  • Publication number: 20100301117
    Abstract: The invention relates to a system and a process for storing and reading information, having a data storage medium for storing information and a reading unit for reading the information stored in the data storage medium, the data storage medium having a dielectric and the information being formed by the presence or non-presence of at least one storage electrode in the data storage medium, and the reading unit having at least one input electrode and at least one reading electrode, it being possible for the data storage medium and the reading unit to be coupled to each other, for the purpose of reading the information, in such a manner that the input electrode and the storage electrode form a first capacitor and the reading electrode and the storage electrode form a second capacitor. The reading unit also has means for generating a digital voltage jump at the input electrode and means for comparing the voltage jump occurring at the reading electrode with a reference voltage.
    Type: Application
    Filed: October 10, 2007
    Publication date: December 2, 2010
    Inventors: Arved H├╝bber, Thoralt Franz, Michael Otto
  • Patent number: 7819320
    Abstract: The disclosure relates to a system and a method for light beam interrogation of an optical biosensor and for monitoring a biological event on the biosensor for use, for example, in microplate image analysis. The system and method correct pointing-errors that can be encountered, for example, in scanning label-independent-detection biosensor applications.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: October 26, 2010
    Assignee: Corning Incorporated
    Inventors: Robert A. Modavis, Garrett A. Piech
  • Publication number: 20100230493
    Abstract: A barcode detection device performs a barcode detection analysis operation of detecting and analyzing a barcode in image data to generate a barcode detection result. An image processor performs an image processing operation of applying image processing to the image data to generate processed image data when the barcode detection indicates an error in barcode detection or analysis. The controller causes the image processor and the barcode detection device to sequentially perform a plurality of retry operations each of which including a set of the image processing operation and the barcode detection analysis operation until one or more successful detection results are obtained, while causing the image processor to change a type of the image processing being applied for each retry operation.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 16, 2010
    Inventor: Toshio Akiyama
  • Patent number: 7795491
    Abstract: Surgical sponges and other articles are provided with machine-readable information which provides a serial number or other unique identification of the sponge. In addition, the machine-readable information will provide the type of article and/or a characteristic visual motif associated with the article. That way, by scanning in the machine-readable information from the sponges or other articles prior to a procedure, the computer or other digital processor can determine which articles may be missing after the procedure and alert the surgical team as to the type and/or characteristic visual motif of the missing article.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: September 14, 2010
    Assignee: Patient Safety Technologies, Inc.
    Inventors: Brian E. Stewart, Nicolas Soichet
  • Patent number: 7760074
    Abstract: The illustrative embodiments provide a computer implemented method, an apparatus, and a computer program product for testing a radio frequency identification reader. The radio frequency identification reader transmits a test signal to a diagnostic tag during a diagnostic period. Responsive to receiving a return signal from the diagnostic tag, the radio frequency identification reader compares the return signal with an expected return signal to form a comparison. The radio frequency identification reader identifies an operational status for the radio frequency identification reader using the comparison.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: July 20, 2010
    Assignee: International Business Machines Corporation
    Inventors: Robert Thomas Cato, Phuc Ky Do, Justin Monroe Pierce
  • Patent number: 7752129
    Abstract: Providing interest to clients' deposited funds without limitation on the number of demand withdrawals from deposit accounts is accomplished by an administration system that keeps all of the records for the clients' deposits and withdrawals, calculates the total of the deposits and withdrawals for all clients, and uses the calculation to determine whether funds are deposited to or withdrawn from one or more deposit accounts in which all clients' deposit funds are kept. Clients can make unlimited withdrawals, such as by check, credit card, debit card, or electronic transfer, through the administrator. By placing the administrator as the holder of the deposit account(s), exemptions to the limitation on earning interest in demand accounts is facilitated; additionally, dispersing the deposit account funds among multiple banks allows the client to obtain FDIC insurance for all of the deposited funds, which may amount to insurance in excess of the statutory maximum allowed (presently $100,000.00).
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: July 6, 2010
    Assignee: Island Intellectual Property LLC
    Inventors: Bruce Bent, Bruce Bent, II
  • Patent number: 7724380
    Abstract: A three-dimensional measurement method is provided for measuring an object shape in a non-contact manner by using a non-contact sensor and a sensor moving mechanism that changes a position and a posture of the sensor and can operate by numerical control, moving the non-contact sensor in accordance with measurement path information indicating plural positions and postures of the sensor at the respective positions. The measurement path information is set in advance by teaching.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: May 25, 2010
    Assignee: Konica Minolta Sensing, Inc.
    Inventors: Shinichi Horita, Yoshihisa Abe
  • Patent number: 7680734
    Abstract: Providing interest to clients' deposited funds without the legal limitation on the number of demand withdrawals from deposit accounts is accomplished by an administration system that keeps all of the records for the clients' deposits and withdrawals, calculates the total of the deposits and withdrawals for all clients, and uses the calculation to determine whether funds are deposited to or withdrawn from a single deposit account in which all clients' deposit funds are kept. Clients can make unlimited withdrawals, such as by check, credit card, debit card, or electronic transfer, through the administrator. By placing the administrator as the holder of a single account, legal exemptions to the limitation on earning interest in demand accounts is facilitated.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: March 16, 2010
    Assignee: Island Intellectual Property LLC
    Inventors: Bruce Bent, Bruce Bent, II
  • Publication number: 20090224042
    Abstract: A host device is configured to read and write information from and into a card and to supply a supply voltage that belongs to a first voltage range or a second voltage range which is lower than the first voltage range, and issues a voltage identification command to the card. The voltage identification command includes a voltage range identification section, an error detection section, and a check pattern section. The voltage range identification section includes information indicating which one of the first voltage range and the second voltage range the supply voltage belongs. The error detection section has a pattern configured to enable the card which has received the voltage identification command to detect errors in the voltage identification command. The check pattern section has a preset pattern.
    Type: Application
    Filed: May 20, 2009
    Publication date: September 10, 2009
    Inventor: Akihisha Fujimoto
  • Publication number: 20090152351
    Abstract: In a method for detecting an encoder material reading error, at least one of a sensor and an encoder material is slewed with respect to each other. Markers on the encoder material are detected with the sensor as at least one of the sensor and the encoder material is slewed with respect to each other to obtain position vs. time data of the sensor with respect to the encoder material. The position vs. time data is analyzed to determine whether a speed at which at least one of the sensor and the encoder material travels with respect to each other fell below a predetermined threshold. In addition, a determination that an encoder material reading error has occurred is made in response to a determination that the speed fell below the predetermined threshold.
    Type: Application
    Filed: August 25, 2008
    Publication date: June 18, 2009
    Inventors: Michael Nordlund, Chee Wah See Toh, Pock Chueng Teo, Chew Say Eng
  • Patent number: 7490134
    Abstract: By using code information, it is possible to easily and accurately direct users to interactive media. The code-issuing server system 10 issues 2-dimensional code information according to a request, an advertiser server system 20 receives the issued 2-dimensional code information and an advertiser server 21 manages the received 2-dimensional code information, a portable telephone 30 having an imaging function that uses a CCD camera photographs the 2-dimensional code information, obtains a Web address that is contained in the photographed 2-dimensional code information and accesses a Web page via the Internet 40 using the obtained Web address, and the advertiser server system 20 supplies information to the portable telephone 30 via the Internet 40 in response to access from the portable telephone 30.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: February 10, 2009
    Assignee: Dentsu, Inc.
    Inventors: Yuji Ono, Fumitaka Toya, Taku Ito, Kentaro Kitajima, Tohru Itoh, Atsuyuki Naito, Yoshito Hashimoto, Hidehiko Yamamoto, Hideto Nishikawa, Hiroyoshi Naitoh, Minehiro Konya
  • Publication number: 20090014519
    Abstract: A method of facilitating communications between a computer device and a smart card reader having an associated smart card, the computer device including a smart card resource manager and a smart card reader service, the smart card reader service acting as a relay for commands between the smart card resource manager and the smart card reader, the method comprising: receiving from the smart card resource manager a first command for setting a protocol for communications with the smart card; and responding, prior to receiving a reply from the smart card to the first command, to the smart card resource manager with a message indicating that the smart card has successfully received the first command.
    Type: Application
    Filed: July 13, 2007
    Publication date: January 15, 2009
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Ravi SINGH, Neil ADAMS, Dinah DAVIS
  • Patent number: 7472820
    Abstract: An apparatus and method that allows information about the product to be transferred to the testing device so that the pertinent tests can be run. After the product is tested and repaired, updated information can be encoded onto the medium and the medium can be stored with the product for later retrieval.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: January 6, 2009
    Assignee: SPX Corporation
    Inventors: Scott Krampitz, Kurt Raichle
  • Publication number: 20080265031
    Abstract: An electronic tag testing device and method includes a feeding mechanism, a retaining mechanism and an R/W system.
    Type: Application
    Filed: April 25, 2007
    Publication date: October 30, 2008
    Inventor: Ying-Chang Liu
  • Patent number: 7438231
    Abstract: A method of printing a two-dimensional barcode by tilting the print head, which results in tilted barcode, and methods of detecting various types of attempts to forge the tilted barcode including: (i) a low level forgery that consists of a simple scan and reprint of the barcode, (ii) a low level forgery that consists of a reproduction (i.e., a read and regeneration) and subsequent printing of the barcode using a printer with a non-tilted print head by a fraudster that is not aware of the tilt in the original barcode, and (iii) a higher level forgery by a fraudster that is aware of the tilt in the original barcode and that digitally tilts/shears an image of the barcode and prints the digitally tilted/sheared image using a printer with a non-tilted print head in an effort to mimic the tilt present in the legitimate barcode.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: October 21, 2008
    Assignee: Pitney Bowes Inc.
    Inventors: Robert A. Cordery, Bertrand Haas, Hongmei Gou
  • Publication number: 20080149715
    Abstract: A host device is configured to read and write information from and into a card and to supply a supply voltage that belongs to a first voltage range or a second voltage range which is lower than the first voltage range, and issues a voltage identification command to the card. The voltage identification command includes a voltage range identification section, an error detection section, and a check pattern section. The voltage range identification section includes information indicating which one of the first voltage range and the second voltage range the supply voltage belongs. The error detection section has a pattern configured to enable the card which has received the voltage identification command to detect errors in the voltage identification command. The check pattern section has a preset pattern.
    Type: Application
    Filed: March 5, 2008
    Publication date: June 26, 2008
    Inventor: Akihisa Fujimoto
  • Publication number: 20080142580
    Abstract: A security apparatus for a nonvolatile memory includes a nonvolatile memory, a working buffer temporality storing a predetermined unit output from the nonvolatile memory, a checksum buffer storing a checksum of at least one unit output from the nonvolatile memory, and a read verification engine controlling storing of a unit output from the nonvolatile memory corresponding to a read signal that is externally input, in the working buffer. The read verification engine calculates a checksum of the unit corresponding to the read signal stored in the working buffer and compares a calculated checksum with a checksum of the unit corresponding to the read signal stored in the checksum buffer.
    Type: Application
    Filed: July 26, 2007
    Publication date: June 19, 2008
    Inventor: Kyung-Duck Seo
  • Patent number: 7382255
    Abstract: A medical assistance method comprises providing a coded tag that is read and compared for matching a medication, implement, medical device, treatment and/or procedure and providing an indication of a match, e.g., by a visual and/or an audible indication.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: June 3, 2008
    Assignee: Avante International Technology, Inc.
    Inventor: Kevin Kwong-Tai Chung
  • Publication number: 20080110987
    Abstract: The illustrative embodiments provide a magnetic reader assembly, a magnetic reader subassembly, a computer implemented method, and a computer program product for diagnosing a magnetic reader subassembly. A processor generates a test signal during a diagnostic period. The processor then receives a return signal from the magnetic reader subassembly. The processor then compares the test signal and the return signal and diagnoses an operational status of the magnetic reader subassembly in response to the comparison of the test signal and the return signal.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 15, 2008
    Inventors: Robert Thomas Cato, Phuc Ky Do, Justin Monroe Pierce
  • Patent number: 7365644
    Abstract: A method and device for wireless monitoring of system status is provided. The method employs a radio frequency identification (RFID) transponder and a RFID reader for transmission of system status. When the system monitoring program executed in the computer device detects abnormality, it would generate a system status code and send it to the RFID transponder, where the status code is combined with an ID code into a packet and sent out by wireless devices. The RFID reader integrated in an electronic device is used to receive the packet, make reference to the reference table embedded in the electronic device to determine the specific message represented by the system status code, and finally display the ID code and the corresponding status message.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: April 29, 2008
    Assignee: Inventec Corporation
    Inventor: Tzu-Yi Yang
  • Publication number: 20070272751
    Abstract: A storage device includes a recording medium having a user-area and a system-area. The storage device conducts a self-diagnostic test on a recording medium. When conducting the self-diagnostic test, a writing/reading unit performs writing of data in and reading of data from the system area at a user-area write/read frequency that is a frequency for writing of data in and reading of data from the user area.
    Type: Application
    Filed: September 18, 2006
    Publication date: November 29, 2007
    Inventor: Hiroshi Tsurumi
  • Patent number: 7293709
    Abstract: This invention relates to a method (and a corresponding terminal) of detecting a presence of a circuit extending arrangement inserted between a physical interface, connected to a terminal, and a smart card, the physical interface being adapted to receive the smart card, the method comprising the steps of measuring at least one electrical characteristic of the physical interface, and determining whether a circuit extending arrangement, changing at least one characteristic of said physical interface, is coupled to said physical interface on the basis said measurement. In this way, simple and efficient detection of a tampering/spy circuit is provided.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: November 13, 2007
    Assignee: NXP B.V.
    Inventors: Keith Baker, Johannes Maria Pleunis
  • Patent number: 7182259
    Abstract: Bar code information is printed on a printable surface associated with a product, such as a label or container of the product, or the product itself, during a production run under the control of a printer computer. The bar code information may include two components of a composite bar code symbol, where the first component is either pre-printed or printed during a production run, and the second component is printed during the production run. The first component may identify a product that is carried in the containers, while the second component identifies a lot, batch, expiration date or commodity number. In another aspect, check data is used to confirm the accuracy of information that is used by a printer computer to control a printer. In another aspect, first and second bar code symbols portions are read to recover information, and a database is accessed to determine if the recovered information is consistent.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: February 27, 2007
    Assignee: International Barcode Corporation
    Inventors: Allen Lubow, Ron Barenburg
  • Patent number: 7111783
    Abstract: An automated dimensional inspection system is provided that modifies sensor planning based on real-time measurement feedback. The dimensional inspection system includes a sensor planner, an error map generator, and a sensor affixed to a movable member. The sensor planner is adapted to receive three dimensional design data for a workpiece to be measured and generate path data in part based on the dimensional design data for the workpiece, where the path data is indicative of a path for moving the sensor in relation to the surface of the workpiece. The error map generator is adapted to receive the dimensional design data and the three dimensional measurement data for the workpiece, and determine error data between the measurement data and the dimensional design data. Based on the error data, the sensor planner is able to further modify the path data for the sensor to increase the measurement accuracy.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: September 26, 2006
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Ning Xi, Chen Heping, Quan Shi
  • Patent number: 7021546
    Abstract: In a bar-code generally number of modules corresponding to each character is seven. However, if the number of modules judged from the data obtained by reading a bar code is, for example, six, the character is demodulated using a demodulation-pattern table corresponding to six modules.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: April 4, 2006
    Assignees: Fujitsu Limited, Fujitsu Frontech Limited
    Inventors: Mitsuo Watanabe, Isao Iwaguchi, Hideo Miyazawa
  • Patent number: 7000835
    Abstract: In a noncontact type IC card, writing of data is executed when a voltage level of an operating voltage generated from a received power wave is a level suitable for the writing of the data to a nonvolatile memory, and it is recognized that the data write operation is normally terminated when the voltage level of the operating voltage is the level suitable for the writing of the data to the nonvolatile memory even after the writing of the data.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: February 21, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hitoshi Komatsu
  • Patent number: 6961000
    Abstract: A method for storing information in a smart tag comprises providing a smart tag having a memory, the smart tag memory having a permanent number stored in a first portion thereof that cannot be changed, and having a second portion in which information can be stored; storing application specific information in the second portion of the smart tag memory; generating a relational check number representative of one of (a) the application specific information and (b) the application specific information and the permanent number; and storing the relational check number in the second portion of the smart tag memory.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: November 1, 2005
    Assignee: Amerasia International Technology, Inc.
    Inventor: Kevin Kwong-Tai Chung
  • Patent number: 6938822
    Abstract: In a noncontact type IC card, writing of data is executed when a voltage level of an operating voltage generated from a received power wave is a level suitable for the writing of the data to a nonvolatile memory, and it is recognized that the data write operation is normally terminated when the voltage level of the operating voltage is the level suitable for the writing of the data to the nonvolatile memory even after the writing of the data.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: September 6, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hitoshi Komatsu
  • Patent number: 6938244
    Abstract: An integrated circuit (IC) card is presented comprising an input/output (I/O) interface and a smart card development interface (SCDI), coupled to the I/O interface, to receive and identify debug frames interlaced within a normal communication flow between the IC card and a host system.
    Type: Grant
    Filed: April 19, 2000
    Date of Patent: August 30, 2005
    Assignee: Microsoft Corp.
    Inventors: Eric C. Perlin, Vinay Deo, David Milstein, Gilad Odinak, Scott B. Guthery, Klaus U. Schutz
  • Publication number: 20040246529
    Abstract: A printed media product, such as a trading card, that has a substrate and an encoded data element applied to a surface of the substrate containing information. The encoded data element includes first, second, and third data layers with first, second, and third patterns of encoded, colored dots defined by a binary encoding scheme. The dots of the first, second, and third layers are different colors separately resolvable by a scanner with decoding software. The colors of the dots are cyan, yellow, and magenta, and the layers are printed so that the dots overlap. The binary encoding scheme includes a two dimensional run length limited code. The printed media product includes a graphics element that can be interpreted by a human user, and typically, the information encoded in the encoded data element layers is related to the information in the graphics element.
    Type: Application
    Filed: June 5, 2003
    Publication date: December 9, 2004
    Inventors: Benny J. Pruden, Peter W. LeMasters
  • Patent number: 6785845
    Abstract: A system for testing an application running on a point-of-sale (POS) terminal comprises a host running on a personal computer connected to the POS terminal, and a target running on the POS terminal. The host sends simulated keystrokes, card swipes and the like to the target, which passes these to the application under test. The target can send information to the host regarding the POS terminal status, such as the screen display, so that the host can send the simulated keystrokes, etc., to the target on a need basis. The host can also receive other data and send instructions to the target, e.g. it can obtain available RAM space details, file details and system clock details, and can send instructions to restart the application.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: August 31, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Kartik Venkataraman
  • Patent number: 6779724
    Abstract: There have been a problem that if the capacity of a receiving buffer is small, data cannot be reliably received and another problem that the rate of detection of transmission errors caused by influence of noise is low. The IC card connector comprises a receiving buffer status flag (305) set up when a receiving buffer (304) cannot hold any more data, an overrun inspecting section (306) for detecting reception of another data while the receiving buffer status flag (305) is set up, and a resending request signal generating section (102) for requesting an IC card to resend the received data if the overrun inspecting section (306) detects overrun. If a receiving buffer (304) receives another data though the receiving buffer (304) cannot hold any more data, the IC card is requested to resend the data, and the same data is received again.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: August 24, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Mikihiko Yamada
  • Publication number: 20040099737
    Abstract: A method of self-testing an IC card reader. The IC card reader communicates data with an IC card. The IC card reader sends the result of the communication to a higher level apparatus. Before the higher level apparatus issues an IC card execution command, the IC card is activated so as to determine whether the communication with the IC card is normal or abnormal based on success or failure of the activation, followed by storing the test result.
    Type: Application
    Filed: February 19, 2003
    Publication date: May 27, 2004
    Inventor: Kazuto Saeki
  • Patent number: 6722565
    Abstract: A data code label including a QR code and an ID tag including a memory having an identification code area and a decode data writing area. A data code in the QR code showing an error in decoding is corrected and stored in the memory in the ID tag while the degree of defection of the QR code is low. When the defects advance, the error rate will increase. If the error occurs after advance of defects, the decode data in the memory is read when the error is detected. If the decode data cannot be read, the error correction is effected. If the error rate is higher than a reference, the decode data is obtained from the memory. If this decreases the error rate under the reference, the error correction is effected.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: April 20, 2004
    Assignee: Denso Corporation
    Inventors: Hiroyoshi Takeuchi, Nobuyuki Teraura
  • Patent number: 6655588
    Abstract: A card system having an IC card and a card reader/writer wherein when data is transmitted and received over a signal line between the IC card and the card reader/writer for reading or writing of the data, a data transmitting side transmits a parity based upon content of the data together with the data over the signal line and a data receiving side checks whether or not there is any error in reception of data based upon content of the a data and the parity received to transmit back to the data transmitting side a data retransmission request signal for requesting the data transmitting side to retransmit the data when there is an error; and wherein the IC card corrects a level of the signal line for requesting the data transmitting side to transmit next data when it is verified that there is no error in the reception of the data based upon content of the data and the parity received by the data receiving side.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: December 2, 2003
    Assignee: NEC Electronics Corporation
    Inventor: Hiroshi Fukazawa
  • Patent number: 6612491
    Abstract: The present invention relates to a bar code reading method and a bar code reader each suitably used for terminal equipment such as a POS terminal. The object is to perform an improved bar code reading rate and an improved effective bar code storage efficiency by detecting trash data so as not to store it in a memory. The bright and dark information on the bar width of a bar code 1 is detected to convert it into binary information. Plural pieces of the converted binary information are stored and then are sequentially outputted on a first-in, first-out basis. In the binary information storing operation, continuous binary information of which the bright and dark information of the bar code 1 does not come alternately is detected as error information. When error information is continuously detected, only the last data of the continuous binary information is stored but the remaining data are erased.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: September 2, 2003
    Assignee: Fujitsu Limited
    Inventors: Isao Iwaguchi, Shinichi Sato
  • Patent number: 6560741
    Abstract: A two-dimensional, high-density, damage-tolerant printed code suitable for encoding multiple biometrics and text for positive off-line identity verification comprises a horizontal header section; a vertical header section; a start pattern; a left row address pattern; an encoded data portion; a right two address pattern; and stop pattern. The horizontal header section encodes the number of bit areas in a transverse row of the encoded data portion; and the vertical header section encodes the vertical height of each bit area. The start and stop patterns of the code demarcate the lateral extent of the code (i.e., the beginning and end) from the adjacent quiet zone. Information is encoded into the ended information portion in bit areas that may be printed or blank. The information is encoded sequentially in the information portion from the top of the encoded information portion along each transverse row of bit areas to the next row of bit areas until the end of the encoded information portion.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: May 6, 2003
    Assignee: Datastrip (IOM) Limited
    Inventors: Eugene P. Gerety, Richard A. Strempski, Stephen G. Sardi
  • Patent number: 6547143
    Abstract: A device and method to read bar-codes in which a ratio of a number of modules is compared to a reference module width character included in a bar-code. The number of modules is rounded up and off based upon the number of modules that includes the error component. When the error amount in the ratio exceeds a permissible value, the character in question is demodulated based on the resulting rounding up or off.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: April 15, 2003
    Assignee: Fujitsu Limited
    Inventors: Norio Koyanagi, Mitsuharu Ishi
  • Patent number: 6542645
    Abstract: A method of accurately determining the location of dots of sensed image data amongst an array of dots of image data in a fault tolerant manner, said data stored at a high pitch rate on a card and subject to rotations, warping and marking effects, said method comprising the steps of: processing the image data in a column by column format; recording the dot pattern of previously processed columns of pixels; generating an expected dot pattern at a current column position from the recorded dot pattern of previously processed pixels; comparing the expected dot pattern with an actual dot pattern of sensed image data at said current column position; if said comparison produces a match within a predetermined error, utilising said current column position as an actual dot position otherwise altering said current column position to produce a better fit to said expected dot pattern to thereby produce new actual dot position, and utilizing said actual dot position of the dot at a current column position in the deter
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: April 1, 2003
    Assignee: Silverbrook Research Pty Ltd
    Inventors: Kia Silverbrook, Simon Robert Walmsley
  • Patent number: 6523754
    Abstract: The IC card sets a status bit, to which an update command including write data is allotted, at a processing start state if receiving the update command from a host apparatus, updates a data region based on control information including information on a previous control region, sets the status bit at a processing end state, and finally transmits a response message to the host apparatus. When restarted if an update processing was interrupted, the IC card prohibits a write data update processing and transmits an error signal to the host apparatus if the status bit is set at the processing start state, and completes the update processing and then transmits the response message to the host apparatus if the status bit is set at the processing end state.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: February 25, 2003
    Assignee: Fujitsu Limited
    Inventors: Masao Hoshino, Tomomi Shiobara, Yuji Seki
  • Patent number: 6405923
    Abstract: A method for secure distribution of data or programs, the transmitted data being provided with an electronic signature. The unit receiving the data or programs checks the electronic signature by executing a modular multiplication, thereby necessitating a multiplication and a division thereof. According to the invention, the unit receiving the data or program checks the signature by performing a modular multiplication according to the Montgomery method wherein an additional multiplication by a factor on the basis of base 2 and even exponents is performed.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: June 18, 2002
    Assignee: Giesecke & Devrient GmbH
    Inventor: Martin Seysen
  • Patent number: 6354630
    Abstract: A method for encoding, on an imprintable medium, identification information for identifying the imprintable medium in a manner detectable by a print-monitoring system includes the steps of defining an identification pattern. The identification pattern is imprinted on a print control region so as to be relatively inconspicuous to an unaided human reviewer of the printed matter while remaining detectable to a print monitoring system. The method includes the step of imprinting, at a plurality of locations in the print control region, a plurality of bit characters detectable by the print control system. The spatial distribution of the bit characters encodes information about the identity of the document.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: March 12, 2002
    Assignee: Inspectron Corporation
    Inventors: Xintong Zhang, R. German Linares, Jonathan Devor, Mohanan Unni, Kenneth G. Berquist
  • Publication number: 20020020744
    Abstract: A card system comprising an IC card and a card reader/writer wherein when data is transmitted and received over a signal line between said IC card and said card reader/writer for reading or writing of the data, a data transmitting side transmits a parity based upon content of the data together with the data over the signal line and a data receiving side checks whether or not there is any error in reception of data based upon content of the data and the parity received to transmit back to the data transmitting side a data retransmission request signal for requesting the data transmitting side to retransmit the data when there is an error; and wherein said IC card corrects a level of said signal line for requesting the data transmitting side to transmit next data when it is verified that there is no error in the reception of said data based upon content of said data and said parity received by the data receiving side.
    Type: Application
    Filed: July 27, 2001
    Publication date: February 21, 2002
    Applicant: NEC Corporation
    Inventor: Hiroshi Fukazawa
  • Patent number: 6294032
    Abstract: A method of bringing together and joining plastic cards, which are provided with an identification mark, and printed card carriers associated with the respective plastic cards, comprises the following steps: providing the plastic card and the printed card carrier; detecting the identification mark of said plastic card; reading data from a database by means of said identification mark; detecting the data on said printed card carrier prior to joining said card carrier to the plastic card; determining whether the data detected on the card carrier correspond to the data read; and, provided that the data read and the data detected correspond, bringing together and joining the plastic card and the card carrier.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: September 25, 2001
    Assignee: Bowe Systec Ag
    Inventors: Karlheinz Weinmann, Eduard Schmid
  • Patent number: 6271931
    Abstract: A method of information distribution on printed cards is disclosed including the steps of dividing the surface of the card into a number of predetermined areas; printing a first collection of data to be stored in a first one of the predetermined areas; utilizing the printed first predetermined area when reading information stored on the card; and when the information stored on the card is to be updated, determining a second one of the predetermined areas to print further information stored on the card, the second area not having being previously utilized to print data. The areas are selected in a predetermined order and the printing utilizes a high resolution ink dot printer for printing data having a degree of fault tolerance with the fault tolerance, for example, coming from Reed-Solomon encoding of the data. Printed border region delineating the border of the area can be provided, in addition to a number of border target markers to assist in indicating the location of the regions.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: August 7, 2001
    Assignee: Silverbrook Research Pty Ltd
    Inventor: Kia Silverbrook