Matches 401 - 450 out of 485 < 1 2 3 4 5 6 7 8 9 10 >
Match Document Document Title
5929416 Reading head arrangement for two data card types  
A reading head able to process both inductive debit cards and chip cards comprising two dissimilar complementary portions, the internal surfaces of the portions defining the channel housing the...
5898165 Portable storage medium issuing system and issuing method  
In an issuing method of a portable storage medium having a data memory and a control element, a plurality of issue data to be written are stored in the data memory, whether the issue data are to be...
5889272 Coupler for managing communication between a portable data medium and a data exchange device, and data exchange device therefor  
A coupler for managing communication between a portable data medium and a data exchange device. The coupler includes bistable control circuitry (25) input-activated by at least two control signals...
5854480 Tag with IC capacitively coupled to antenna  
A tag has an integrated circuit (IC), electrode plates included in the IC, an electrically insulating film covering the electrode plates, antenna terminals each facing one of the electrode plates...
5847447 Capcitively coupled bi-directional data and power transmission system  
A power and data transfer system includes a portable device with a first contact circuit formed from a pair of contact pads having an outer surface covered with a dielectric material. A processing...
5838235 Station, a passive portable object and apparatus for the remote exchange of information between the passive portable object and the station  
Apparatus for the exchange of information by electromagnetic coupling between a passive portable object and a station comprising: first electromagnetic coupling means for the transmission of data...
5821983 Data message storage and transmission using a videophone and smart card  
A smart card, a non-passive, secure, microprocessor based data storage medium, is used for the storage of a plurality of data messages and is read by a video telephone terminal equipped with a...
5818019 Electronic verification machine for validating a medium having conductive material printed thereon  
Determination of the authenticity and integrity of various types of documents such as lottery tickets is accomplished by using an electronic validation machine to compare data contained in...
5804811 Non-contacting RF-ID card for wide voltage range input  
A battery-free non-contacting information card of a relatively simple arrangement which prevents an IC chip or the like from being destroyed by an excess voltage. This non-contacting information...
5786910 Pattern metallized optical varying security devices  
Security devices which are difficult to reproduce include a grid screen metallization pattern. The grid screen metallization pattern may be laid down over a hologram or diffraction grating formed...
5771003 Locating system and process  
A user-friendly process and fail safe system instantaneously identifies, locates, and help retrieve products and their contents in drawers, shelves, rooms, offices, stores, warehouses, etc. The...
5691904 Process and device for determining the condition of machines with several measuring points  
The proposal is for a process and device making it possible to determine the condition of one or more machines (3) at several measuring points by means of a measuring head (MK) with measurement...
5517460 Semiconductor integrated circuit and IC card using the same  
A semiconductor integrated circuit includes: a writable non-volatile memory; a writing voltage-generating circuit for generating a writing voltage and supplying it to the non-volatile memory; an...
5475205 Document verification system  
Determination of the authenticity and integrity of various types of documents such as lottery tickets is accomplished by using an electronic verification machine to compare data contained in...
5471040 Capacitive data card system  
A data storage and retrieval system is disclosed which includes an interface module and a data card. Both the interface module and card include a plurality of primary and secondary electrodes...
5471039 Electronic validation machine for documents  
Information can be obtained from a document having printed electronic circuits by using an electronic verification machine that determines the electrical characteristics or signatures of the...
5451763 Personal medical IC card and read/write unit  
Reading data from, writing data to and storing data in an IC card, utilizing an external Read/Write unit. An IC card (12) is provided. The IC card (12) comprises a rigid substrate (86) and...
5404000 Embossed character reader for data card terminal  
A data card terminal, such as a credit card transaction terminal, is disclosed. The terminal includes a transaction terminal comprising an embossed character reader and magnetic stripe reader, with...
5237165 Multi-turn coil structures and methods of winding same  
A multi-turn coil structure is wound on a former starting from a central portion of the coil and spirally winding respective lengths of the coil which extend from the central portion around the...
5175418 Information card system  
An information card system operating in a non-contact manner comprises an information card including a data storage, a card reader and a card writer. The card writer writes information data, such...
5159181 Capacitive code reader with interelectrode shielding  
A reader of a code represented by a coded array mounted on a surface and sisting of a material differing in its electrical conductivity from its surroundings comprises a pair of electrodes...
5157244 Smart key system  
A system for handling variable digital information comprising a key having an active integrated circuit component with leads extending therefrom, a battery for powering the component, unplated...
5021767 Method and an apparatus for electronically identifying articles moving along a surface  
A method and an apparatus for identifying articles moving along a surface, especially suitable for conditions in which the surface and/or the articles comprise comparatively much electrically...
4931991 Machine readable memory card with capacitive interconnect  
An interconnection system for transferring either electrical energy in the form of power and data signals or both is disclosed. Capacitive coupling devices are shown connected to a memory device...
4876535 Method and apparatus for non-contacting information transmission  
An apparatus for non-contacting information transmission between a data carrier and a data reader includes providing at least two electrodes on the surface of the data carrier which are brought...
4853523 Vault cartridge having capacitive coupling  
A portable data storage module, or vault cartridge, having a data storage device and a plurality of conductive members which are disposed beneath an insulating outer surface of the module. In...
4841128 Circuit unit  
A circuit unit is described, comprising an integrated circuit disposed on a substrate as its carrier and coupling elements for energy transfer, data output and, if required, data input. All...
4835373 Appliance for transmission and storage of energy and information in a card-shaped data carrier  
A device for transmission and storage of energy into a mobile data carrier designed in a card-shaped manner, which is insertable into a flute-shaped transmission unit. The transmission unit is...
4818855 Identification system  
A remotely powered portable member having circuitry for storing and transmitting coded information. A first coupling device is provided for receiving a signal transmitted via one of a magnetic...
4800512 Method and apparatus for determining and detecting data indicative of the condition of machines through a unique data probe including a test data probe portion and an identifying data sensing probe portion  
A measuring instrument for determining and evaluating data representative of the condition of a machine provided with measuring points is provided with a test data probe, incorporating a test data...
4798322 Card reader/writer station for use with a personal memory card using differential data transfer  
A personal memory card system is arranged for use with a memory card which looks and feels much like an ordinary credit card. No ohmic electrical contact is required between the card and a...
4752680 Tags for identification system  
The invention relates to a card-like information carrier readable with RF waves and having resonant devices at spaced intervals across its face that are tuned to different resonant frequencies, an...
4634847 Capacitive data carrier reader  
A capacitive data carrier reader is provided and a data carrier therefor. The reader operates with a capacitive bridge circuit. The data carrier is robust, proof against forgery and falsification,...
4617458 Counterfeit detection circuit  
A magnetic detection circuit in which the sensor signal is integrated over the length of the examined sheet and compared with a pair of reference levels to establish the presence of too much or too...
4591945 Device for protecting electronic circuits against electrostatic charges  
An insulative data carrier of the credit card type having a protective device that protects electronic circuits, such as integrated circuits (3a, 3b), incorporated therein against electrostatic...
4587410 Capacitive card and reader parking system  
The apparatus includes a card which entitles the holder to a number of units of parking time represented by discrete capacitances carried by the card. The parking time is metered by a card reader...
4553026 Capacitive label reader  
A capacitive label reader includes an outer ring transmitting portion, an inner ring transmitting portion, and a plurality of insulated receiving portions. A label is the mirror-image of the reader...
4359632 Firing circuit for card reader device  
A firing circuit for selectively energizing opposed portions of a spark gap card reader. The circuit includes a source of alternating current which is first rectified by a diode and then used to...
4355300 Indicia recognition apparatus  
Method and device for detecting the presence or the absence of conductive indicia carried by a supporting substrate which together comprise a security document, for the purpose of ascertaining the...
4345146 Apparatus and method for an electronic identification, actuation and recording system  
Dispensing of commodities such as bulk liquids, gases, granules and powders is monitored electronically by identifying receivers of the commodities with specific codes and relating those codes to...
4328415 Card and card reader system  
A card reader for a viewdata terminal such as PRESTEL in which a code in the card is read and used to enable access to the viewdata computer and to charge the appropriate account for use of the...
4280119 Ultrasonic and capacitive electronic key systems  
Electronic key systems using no moving parts are disclosed. In one embodiment capacitive sensing is provided and in a further embodiment ultrasonic sensing is used. Both embodiments can employ...
4255652 High speed electrically responsive indicia detecting apparatus and method  
Apparatus for detecting and providing a signal from detection indicia that is applied to a substrate such as a controlled document for the purpose of determining the character of the document, the...
4181251 Record carrier with safety features capable of being checked mechanically and method of checking said safety  
The record carrier has a card base, on which there are deposited an electrically highly conductive layer and an electrically highly insulating layer with the interposition therebetween of a...
4020536 Method of constructing credit cards for automatic vending equipment and credit purchase systems  
A special method of credit card construction is provided with the credit card precoded in binary code representing several digits and with a locator indicator to insure that the card is correctly...
4017834 Credit card construction for automatic vending equipment and credit purchase systems  
A special credit card arrangement and construction is employed with the credit card precoded in binary code representing several digits and with a locator indicator to insure that the card is...
3995255 Automatic vending equipment and credit purchase systems  
The credit card is precoded in binary code representing several digits and has a locator indicator to insure that the card is correctly positioned when inserted in the console or read-out station....
3974332 Tablet for use in a coordinate digitizer  
A capacitively coupled tablet for use with an electrically conductive pen comprises segments each including at least one lattice point of a matrix which comprises groups of spaced conductors which...
3935431 Apparatus for the storage and reading of data combined from binary numbers  
An apparatus for the storage and reading of data combined from binary characters, comprising a data carrier having adjacently arranged separate signal conductor tracks incorporating intermediate...
3922529 Static reader for encoded record  
A decoder for use with a record medium having bits of information thereon in which the decoder can be programmed to produce an indication of an acceptable record having the bits of information...
Matches 401 - 450 out of 485 < 1 2 3 4 5 6 7 8 9 10 >