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8183984 |
Method and device for the power-saving operation of a plurality of RFID data carriers
A method and a device for power-saving operation of a plurality of RFID data carriers, whereby the RFID data carrier has a transmission and reception antenna, by way of which data are sent to and...
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8183985 |
Method and device for the power-saving operation of RFID data carriers
A method and a device for power-saving operation of RFID data carriers, whereby the RFID data carrier has a transmission and reception antenna, by way of which data are sent to or received from a...
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8149108 |
System and method for automatically powering on and synchronizing a wireless remote console to a central control unit so as to allow remote control of a medical device
A system and method for controlling one or more medical devices by a remote console. The remote console communicates wirelessly with a central control unit that connects to one or more of the...
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8143999 |
Data carrier with sensor
In a circuit (3) for a data carrier (1), which data carrier (1) comprise a sensor (2) that is designed for providing a sensor signal (SS) that represents an environment parameter and a...
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8138885 |
Vehicle antenna device, vehicle including the vehicle antenna device, and vehicle security system including the vehicle antenna device
A vehicle antenna device includes a first antenna and a second antenna. The first antenna surrounds an ignition key cylinder having a key insertion hole and is configured to receive a first signal...
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8130080 |
Transponder actuatable switching device
The present invention relates to a switching device for generating a switch signal, a reading device with the switching device and a method for the communication between a reading device and a...
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8125288 |
Method for modulating a signal
A method for modulating a signal transmitted by a first device to a second device which is energised by the signal, wherein the first device is further arranged to amplitude modulate the signal so...
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8120487 |
Power-saving wireless input device and system
A power-saving wireless input device and an associated system are included. The wireless input device comprises an antenna, an RFID transponder, an energy-storing unit, and a sensing unit. The RFID...
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8115597 |
RFID tags with synchronous power rectifier
The present disclosure provides a power rectifier for a Radio Frequency Identification tag circuit. The rectifier is constructed from a pair of complementary MOS transistors. Gates of the...
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8115595 |
Reader control system
An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands,...
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8115596 |
Method and system for controlling distant equipment
A method and system for controlling distant equipment. A passive radio frequency identification (RFID) tag within a Programmable Secure Remote Controller (PSRC) receives a radio frequency (RF)...
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8111138 |
Radio tag and system
Passive tags use two antennas with only limited mutual coupling one of which receives a power/clock field and the other of which receives a data signal. An area-reading antenna, or two or more...
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8111140 |
Transponder load modulation
An electromagnetic transponder and a method for controlling by pulse trains a switch for modulating the load of this transponder in an electromagnetic field from which it extracts its power supply,...
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8102263 |
Passive tag including volatile memory
A passive tag including a volatile memory is provided. The passive tag includes: a sensing unit which senses or measures information about environmental surroundings of the tag; a volatile memory;...
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8098139 |
Test head device
There is disclosed a test head device for testing the functionality of a large number of RFID chips arranged in smart labels (17) within a smart label production apparatus by means of a data...
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8090365 |
Methods, systems and storage media to remotely control a wireless unit
A method to remotely control a wireless unit, includes receiving an activation/deactivation request from a user. It is determined if the user is authorized to activate/deactivate the wireless unit....
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8089344 |
Method and system for miniature passive RFID tags and readers
This invention makes possible small size, long range, reliable, low-power, low-cost RFIDs fulfilling the needs of the industry and the roadmap set for RFID, as by Walmart and the DoD. Tag...
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8085130 |
Radio frequency identification tag
A battery-assisted radio frequency identification (RFID) tag having a battery-assisted circuit and a filter is provided. The battery-assisted circuit generates a radio frequency signal whose...
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8072312 |
Contactlessly rechargeable identification device and method thereof
A non-contact state charging authentication device and a method thereof are disclosed. The authentication device includes: a power supply for receiving and transmitting power; a control unit for...
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8072329 |
Voltage regulators using a resistive chain to bias a native transistor
The present disclosure provides examples of a voltage regulator for a Radio Frequency Identification tag circuit. The voltage regulator includes a pair of native transistors. A first native...
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8063746 |
Transponder detector for an RFID system generating a progression of detection signals
A transponder detector is provided with capabilities for detecting the presence and type of a transponder in its read range while operating at low power. The transponder detector includes an...
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8059683 |
Method for transmitting and receiving data in NFC
A data transmission/reception method in Near Field Communications (NFC) for enhancing data throughput between at least an initiator device and a target device. The data transmission/reception...
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8054159 |
Communication apparatus having human body contact sensing function and method thereof
Provided is a communication apparatus having a human body contact sensing function and a method thereof. The communication apparatus includes: an electrode that comes in contact with the human...
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8054160 |
RFID tag power conservation system and method
Active multi-modal RFID tags, illuminator/tag/reader systems, circuit architecture and opera-tional algorithms for battery power conservation that extends tag battery life from a typical 6 months...
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8035483 |
Oscillator tuning system and oscillator tuning method
An oscillator tuning system and an oscillator tuning method are provided. The system includes a determination unit which determines whether a power which is used in an RFID tag having an RFID...
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8035484 |
Semiconductor device and IC label, IC tag, and IC card provided with the semiconductor device
A charge accumulation circuit having a structure in which a capacitor is divided into a plurality of pieces and the divided capacitors are connected in parallel through switches is provided. The...
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8035488 |
Information access system and active-type contactless information storage device
An information access system comprises a reader/writer for continually transmitting an ID request signal at a first frequency and being continuously ready to receive an RF signal at a second...
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7986219 |
Power line communication system
A power line communication system includes: a first electronic instrument and a second electronic instrument, wherein information is received or transmitted between the first electronic instrument...
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7969135 |
Regulation circuit and a method for regulating an input voltage
A regulation circuit comprises an error detector, an integrator, and a voltage regulator. The error detector comprises an input for an input voltage, a further input for a reference voltage and an...
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7956749 |
Wireless association
A system for determining compatibility between various items is disclosed. A wireless communication device is used to scan a machine-readable tag which includes a plurality of information fields....
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7944338 |
RFID tag, RFID reader/writer, RFID system, and processing method of RFID system
In an RFID system including RFID tags each incorporating a sensor, accuracy of measurement by the sensor can be improved. For example, when measurements are performed several times by using RFID...
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7940717 |
Selective wake-up of data packet radio component using common designation communication
A method of forming ad hoc RSI hierarchical communication networks among pluralities of wireless transceivers includes assigning to each of the transceivers one or more common designations. A...
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7940736 |
Selective response to radio frequency (RF) transmissions by wireless two-way RF data communication device
A method of forming ad hoc RSI hierarchical communication networks among pluralities of wireless transceivers includes assigning to each of the transceivers one or more common designations. A...
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7912430 |
Circuit arrangement for wirelessly exchanging data and RFID chip card device
A circuit arrangement for wirelessly exchanging data with a reader device, including an antenna for converting electromagnetic radiation into an antenna voltage, an analogue circuit for...
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7902963 |
RFID device having nonvolatile ferroelectric memory device
A RFID device has a nonvolatile ferroelectric memory including a memory cell array area supplied only with a high voltage and a peripheral area supplied with a low voltage, thereby reducing power...
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7893816 |
High sensitivity radio frequency identification tag
Systems and techniques for identification of items using radiofrequency identification (RFID) tags exhibiting a high sensitivity to signals such as signals emitted by an RFID reader. An RFID tag...
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7880616 |
Wireless data communication system having radio frequency devices, and related operating methods for disabling a transmit mode
A wireless system suitable for use as a radio frequency (RF) locationing or presence detection system includes at least one wireless access device and at least wireless device, such as an active RF...
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7872581 |
Method, devices and system for multiple RFID tag read-out
A method is provided, comprising transmitting a first radio frequency identification tag wake-up sequence by a master reader device; responsive to said first wake-up sequence, transmitting a second...
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7868779 |
Circuitry for powering on and maintaining activation of a powered off electronic component
Circuitry for automatically powering on and maintaining activation of a powered down electronic component in a first device in RF communication with a second device, wherein the first and second...
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7864051 |
Quasi-passive wakeup function to reduce power consumption of electronic devices
A quasi-passive wake-up function for an electronic device that employs a continuous low power standby mode compares a received signal to a predetermined signal and wakes up the device when the...
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7855644 |
Method and apparatus for disabling an active data tag device
The present invention discloses a data tag device (100) which initially operates in an active mode (304). The data tag device includes tag circuitry including a interface element (104), a...
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7839300 |
RFID reading system, RFID reading method, RFID reader, RFID read controlling apparatus, RFID reader control program, computer-readable information recording medium having recorded the same, control program for RFID read control apparatus, and computer-readable information recording medium having recorded the same
An RFID reading system includes at least two readers and at least one RF tag. Each reader includes a transmitter, a receiver, and a CPU section to control transmission of the transmitter and...
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7839283 |
Wireless remote sensor
An integrated circuit implements a wireless remote sensor. The wireless remote sensor includes an antenna coupled to an energy distribution unit to allow passive collection of electrical charge. A...
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7830850 |
Class-switching in class-based data communcations network
In a wireless class-based data communications network, a class-switching method includes configuring a wireless two-way RF data communication device, of a wireless class-based data communications...
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7826873 |
Contactless energy transmission converter
The present invention is an efficient method of transferring energy wirelessly and an apparatus which efficiently transfers energy wirelessly. A high transmission frequency is modulated by a lower...
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7806332 |
Passive type RFID semiconductor device, IC tag, and control method
To provide a semiconductor device capable of securely executing a reading operation to improve a reliability of read data, an IC tag including the semiconductor device, and a control method for the...
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7800481 |
RFID device having a nonvolatile ferroelectric memory
A radio frequency identification (RFID) device includes an antenna configured to transmit or receive a radio frequency signal to or from an external communication apparatus; an analog block...
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7782209 |
Detection signal generator circuit for an RFID reader
An RFID transponder detector is provided having a coupled oscillator system. Coupled first and second LC of the system produce a detection signal each time a combination of pulses is applied to the...
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7772980 |
Method and systems for localizing objects using capacitively coupled RFIDs
A method and system for localizing an object among a set of objects, each equipped with an improved RFID tag. The tag includes an RFID chip, an antenna, a visual indicator, an AC/DC converter, and...
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7773982 |
Methods, systems and storage media to remotely control a wireless unit
A method to remotely control a wireless unit, includes receiving an activation/deactivation request from a user. It is determined if the user is authorized to activate/deactivate the wireless unit....
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