Abstract: A method and system for monitoring and reporting vehicle tire pressure information. The system includes tire pressure monitors mounted to the tires of a vehicle. The tire pressure monitors detect tire pressure information from their respective tires and transmit that information to transponders that are fixedly-mounted to the vehicle. Each tire pressure monitor corresponds to a single transponder. When a tire pressure monitor transmits tire pressure information, the corresponding transponder receives the signal and transmits the tire pressure signal along with a unique transponder identification code to a vehicle central system controller. Based upon the transponder identification code, the central controller associates the tire pressure information with a particular tire location. However, under certain conditions, a transmitted tire pressure signal is received by one or more of the non-corresponding transponders as well as the corresponding transponder.

Abstract: A magnetic field-based tagged object information storage and retrieval system employs a spread spectrum modulated magnetic field for identifying each of a plurality of tagged objects to which spread spectrum modulation magnetic field transponders are attached. When interrogated by a tag reader, transponders embedded in plural tags generate spread spectrum modulated magnetic fields that are correlated with a reference spreading sequence in a tag reader signal processor to both detect and identify each responding tag.

Abstract: A reader/writer (RW) requires identification of anti-collision techniques used by IC cards (A, B, C, and D). The IC cards implement answers to the anti-collision technique identification requirement by the reader/writer at different timings respectively for respective IC cards among the IC cards which use different anti-collision techniques respectively. The reader/writer requires identifications of types of the IC cards in dependence upon the anti-collision techniques in response to the answers by the IC cards. The IC cards return identification data thereof in response to the card type identification requirements by the reader/writer for respective IC cards among the IC cards which use different anti-collision techniques respectively. The reader/writer identifies the types of the IC cards in response to the identification data of the respective IC cards.

Abstract: In a method of communication between a communication station (1) and a plurality of data carriers (2) an interrogation signal (IDB) is generated with the aid of interrogation signal generating means (7) in order to start an interrogation cycle (IPER) and is supplied to all the data carriers (2) and with the aid of response signal generating means (63) each data carrier (2) generates a response signal (RDB), of which response signals (RDB) some of the response signals (RDB) are received separately and some are received non-separately, and the communication station (1) detects each separately received response signal (RDB) and consequently identifies the relevant data carrier (2), and an acknowledge signal (QDB) is supplied to each identified data carrier (2) whose response signal (RDB) has been received separately by the communication station (1), which acknowledge signal (QDB) is detected with the aid of acknowledge signal detection means (59) in each data carrier (2) and thus sets each identified data carrie

Abstract: This utility model provides an object identification structure applicable for authentication, production control, and data retrieval, and such structure comprising an object with a printed page to be identified; and its feature is that there is a Radio Frequency Identification Integrated Circuit RFIDIC deposed at the appropriate position on the front printed page, and said RFIDIC further comprising a storage device for storing user's (or storing account) identification code, password, serial number and the like, working with a computer terminal connected to a set of wireless code reader interfaced with RS232 or RS485 for detection. Such arrangement can improve the control of the manufacturing procedure and attain the identification purpose.

Abstract: To provide a support system using a data carrier system by which an activity or a work operation by means of human beings and robots may be supported in a variety of environments. The support system comprises at least one tag being a data carrier that is disposed at a predetermined position; and at least one reader/writer that communicates with the tag; the tag being provided with an input/output means, a predetermined device being connected to the input/output means, and the predetermined device being operated by information output from the reader/writer.

Abstract: A method of and system for conducting a hunting tournament or contest. Passive transponders are inserted subcutaneously into the game to be harvested. Tagged animals are released back into their natural habitat. The hunting portion of the tournament is conducted. Animals harvested during the hunting tournament are brought in and scanned. The passive transponder, if present, responds to the scanning by transmitting an identification code. The code transmitted by the passive transponder is used to determine the prize the hunter is awarded. Hunter identification tags can be distributed to all participants in the hunting tournament and be used to tag the harvested animal. The passive transponder can be constructed to respond only to a particular scanning device.

Abstract: An airborne meter communication system includes an airborne platform that communicates with ground based utility meters using radio frequencies. The airborne platform retransmits information received from the meters to a network operations center for further processing.

Abstract: The response of an object to a single time-varying magnetic field is sensed to determine object position and/or manipulation on a horizontal or vertical surface. A time-varying interrogation signal, which interacts with tags disposed on the surface, is read by an array of sensing coils. Control circuitry receives signals from the sensing coils representing this interaction and, based thereon, determines the identity, position, and manipulation of each of the objects based on the sensed signals and the known positions of the sensing coils. Feedback to the user can be provided in the form of a localized output (e.g. light, sound, heat, etc.) physically coincident with the object.

Abstract: This invention is a contactless label chipcard including payment and identification information and a check-out system including a contactless reader for reading and updating payment information stored in that label chipcard. The contactless label chipcard is attached to a product, and the system further includes a device for reading and initiating updating of the payment status resident on the chipcard. The device includes the contactless reader for reading information stored in the contactless label chipcard, and a component for generating an invoice based on the information received from the contactless label chipcard. Further, the device includes a component for checking payment of the invoice and a component for initiating update of the payment status. Corresponding methods and computer program products are also provided.

Abstract: A user interface for a radio frequency identification interrogation system is disclosed, which interface may include graphics, sounds, lights, or combinations of the foregoing that provide information to a user in regard to the materials being interrogated.

Abstract: The universal electronic identification tag is for use with a variety of readers of different designs including a control reader which can be used to control the operations of the universal tag. A reader interrogates a tag by transmitting a carrier. The universal tag comprises a transducer, a modulator connected across the transducer, and a control means. The control means causes the modulator to drive the transducer with a plurality of different message waveforms after interrogation by a reader, the tag identity being embedded in each of the message waveforms. The message waveforms can be transmitted either simultaneously, sequentially, or both ways. A message waveform is comprised of a sequence of contiguous waveform segments, each waveform segment representing the value of an N-bit group, N being an integer. A waveform segment is a periodic signal characterized by the parameters frequency, phase, and amplitude.

Abstract: In a system for identifying a plurality of cattle bred on a livestock farm and detecting an estrus state thereof, an apparatus for detecting and identifying any one of cows in the estrus state, comprising a switch mounted on a caudal part of a corresponding one of the cows in such a manner that it can be operated when a different one of the cows mounts the corresponding cow, an encoder for generating an inherent identification code with respect to the corresponding cow in response to the operation of the switch, a radio transmitter/receiver circuit for transmitting the inherent identification code from the encoder externally by radio and receiving an external identification code by radio, a decoder for decoding the external identification code received by the radio transmitter/receiver circuit to detect an identification code value therefrom, a comparator for comparing the identification code value from the decoder with a prestored identification code value of the corresponding cow to determine whether the tw

Abstract: A system, method of use, and a plurality of types of Radio Frequency Transponders (RF Tags). The RF Tags carry a directory or a tag type number which determines the layout of information in the tag memory. The tag type numbers are arranged hierarchically.

Abstract: A method of communications in a backscatter system, the method comprising transmitting a command at a first power level; and transmitting a continuous wave for a backscatter reply, the continuous wave being transmitted at a second power level different from the first power level. An interrogator for use in a backscatter system, the interrogator comprising a transmitter configured to transmit a command at a first power level and to transmit a continuous wave for a backscatter reply, the transmitter being configured to transmit the continuous wave at a second power level different from the first power level.