Patents for G06K 7 - Methods or arrangements for sensing record carriers (60,544)
09/1991
09/10/1991US5047615 Bar code printing or reading apparatus
09/10/1991US5046841 Token having a predetermined optical characteristic, and a token validation device for use therewith
09/05/1991DE4001162A1 Inductive contactless identification system - generates pulses of opposite polarity enabling greater separation of code carrier and read-write head
09/04/1991EP0444958A1 Bar code reading devices
09/04/1991EP0444396A1 Connection device for a Si-module
09/03/1991US5045677 Combining bar code read data from a plurality of scanning lines formed from one-dimensional images
09/03/1991US5045675 Serial port interface to low-voltage low-power data module
09/03/1991US5045674 IC card reader/writer having rotating contact support with pin-check verification
08/1991
08/29/1991DE4006184A1 Measuring width and spacing of bar codes - using single photosensor whose speed is derived from signal for absolute measurement independent of speed of movement
08/27/1991US5043569 Optical system of laser beam reader
08/27/1991US5043567 Image sensor and manufacturing method for the same
08/27/1991US5043565 Process and circuit for compensating changes
08/27/1991US5043563 Portable overhead bar code scanner
08/27/1991US5042821 Seal for optical scanner window
08/27/1991US5042619 Commodity data reading apparatus
08/22/1991WO1991012589A1 Device for marking vehicles or vehicle parts
08/21/1991EP0442390A1 Batteryless transponder
08/20/1991US5042079 Method of recording/reproducing data of mesh pattern, and apparatus therefor
08/14/1991EP0441712A1 Microwave transponder system with polarising resonant plane antenna
08/14/1991EP0441709A2 Semiconductor laser driving circuit
08/14/1991EP0441425A1 Apparatus for recording and/or reading information
08/14/1991EP0441280A1 Method and apparatus for decoding two frequency (F/2F) data signals
08/14/1991EP0441237A1 Portable detecting plate which is programmable by fields
08/14/1991EP0441031A2 High speed system for reading and writing data from and into remote tags
08/14/1991EP0440654A1 Optical reader.
08/14/1991CN1013528B Data access card of ferro-electric liquid crystals
08/13/1991US5039847 Image processing apparatus having an image scanner
08/13/1991US5039184 Optical beam scanner for bar-code
08/13/1991US5039051 Equipment supporting device
08/08/1991WO1991011784A1 Data carrier
08/08/1991WO1991011692A1 Source intensity adjustment apparatus for optical channel
08/08/1991WO1991006070A3 Electronic image lift
08/07/1991EP0440124A1 Bar code label and bar code reader
08/07/1991EP0440050A2 Inductive coupled object identification system
08/07/1991EP0439682A2 High density two dimensional symbology
08/07/1991EP0324831A4 Erasable optical wallet-size data card
08/07/1991EP0288555B1 Optical scanner checkout station
08/07/1991EP0160008B1 Quad density optical data system
08/06/1991US5038024 Instant portable bar code reader
08/01/1991DE4003212A1 Parcel identification system - uses inductive read head to identify hole pattern in data carrier representing binary code of carrier
08/01/1991DE4002794A1 Data carrier for contactless goods identification - has insulating support plate with matrix of printed, parallel-connected coils
08/01/1991DE4002738A1 Static or mobile device for recording and identifying passive radio-recording-chips
08/01/1991DE4002719A1 Product identification appts. - has two way microprocessor units with optical transmission appts. for communication
07/1991
07/31/1991EP0439383A1 Device to read oblong segments from a moving recording medium
07/31/1991EP0438841A1 Identification symbol, system and method
07/30/1991US5036429 IC card adapter
07/30/1991US5036308 Identification system
07/30/1991US5036184 Card reader using linear card conveyer means
07/30/1991US5036183 Code reading device
07/30/1991US5036182 Bar code reading and decoding apparatus
07/30/1991US5035633 Data-processing apparatus in which a card-shaped recording medium is used
07/30/1991CA1287186C Ic card and connector therefor
07/30/1991CA1287136C Ic card reader
07/30/1991CA1287028C Distributed coaxial light source producing constant target luminance
07/25/1991WO1991011065A1 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions
07/25/1991WO1991010953A1 Magnetic encoding apparatus and method
07/25/1991CA2074169A1 Method of and apparatus for controlling modulation of digital signals in frequency modulated transmissions
07/24/1991WO1991011777A1 Process and device for analysing the data on a code carrier
07/24/1991EP0438355A1 Method for reading a synchronizing signal from a record medium and an apparatus therefor
07/24/1991EP0438250A1 System for reading and writing data from and into remote tags
07/24/1991EP0437938A2 Cleaning device
07/24/1991EP0437883A1 Scanning device for optically scanning a surface along a line
07/24/1991EP0437627A1 Digital data reader of digital data recording sheet
07/24/1991EP0437549A1 System for remote sensing of distinguishing marks on objects
07/24/1991CA2049934A1 Process and device for analysing the data on a code carrier
07/23/1991US5034619 Optical reader with dual vertically oriented photoemitters
07/23/1991US5034599 IC card reader/writer having a short-circuit detection capability
07/23/1991US5034596 IC card processing apparatus
07/23/1991US5033972 Electrical connector
07/23/1991CA1286776C Binary coding circuit
07/18/1991DE4100693A1 Contactless transceiver for portable data I=O device - has EM for data transfer between integrated circuit card and read-write device
07/17/1991CN2081111U Identification device for cards
07/16/1991US5031797 Reagent storage and delivery system
07/16/1991CA1286405C Id system and method of writing data in an id system
07/12/1991WO1991010968A1 Devices and methods for reading identification marks on semiconductor wafers
07/12/1991CA2073335A1 Devices and methods for reading identification marks on semiconductor wafers
07/11/1991WO1991010230A1 Tripod configured magnetic head assembly for use with a high coercivity magnetic card
07/11/1991WO1991010206A1 Transmission system
07/10/1991EP0436072A2 Method of decoding bar code symbols from partial scans
07/10/1991EP0262181B1 Power regulator for a contactless credit card system
07/10/1991EP0207164B1 Apparatus for recording and reproducing optical recording card
07/09/1991US5030807 System for reading and writing data from and into remote tags
07/09/1991US5030010 Process for the optical scanning of an object and device for the implementation of said process
07/06/1991CA2022269A1 Method of decoding bar code symbols from partial scans
07/04/1991DE4003247C1 Switching arrangement increasing hysteresis - has switching and control levers forming arrester released shortly before operating lever reaches rest position
07/03/1991EP0435572A2 Method for recognizing the leading edge of a character
07/03/1991EP0435281A2 Camera
07/03/1991EP0435280A2 Optical apparatus responsive to an external information output device
07/03/1991EP0435137A2 Information card system
07/03/1991EP0435109A2 A sensor assembly for sensing printed marks on a print medium
07/03/1991EP0435100A2 Symbol reader
07/03/1991EP0434817A1 Proximity detecting apparatus.
07/02/1991US5029183 Packet data communication network
07/02/1991US5029008 Apparatus for identifying television monitors
07/02/1991US5028772 Scanner to combine partial fragments of a complete code
07/02/1991US5028771 Bar code reader
07/02/1991US5028770 Bar code reading apparatus with laser selection based on a deflector position
07/02/1991US5028769 Device for reading a mold code on a glass bottle
07/02/1991US5028768 System for reading and encoding a magnetic track carried by a manually-displaced supporting document
07/02/1991US5028767 Sealed holder for IC card