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7439862 Antenna array for an RFID reader compatible with transponders operating at different carrier frequencies  
An antenna array is provided for an RFID reader, which includes a first reader antenna tuned to operate at a first frequency and a second reader antenna tuned to operate at a second frequency...
7436306 Method and system for checking completeness in a package  
System and method for checking completeness in a package, which comprises a plurality of objects, which are each provided with at least one electronic information storage medium. The method...
7434731 Method and apparatus for efficient data transmission from a tag  
A tag has circuitry with a communication portion that can transmit and receive wireless signals, including wireless transmission of data blocks that each have a predefined configuration with a...
7436308 Adjusting RFID waveform shape in view of signal from another reader  
Systems, software, devices, and methods are described for an RFID reader system to communicate with RFID tags. RF energy encountered in conjunction with using a selected channel is detected. The...
7432814 Reconstructing RFID waveform shape for reuse in individual channel  
Systems, software, devices, and methods are described for an RFID reader system to communicate with RFID tags. RF energy detected in conjunction with using a selected channel is detected and used...
7421249 Read-write processing apparatus and method for RFID tag  
A read-write processing apparatus communicates with an RFID tag provided with a semiconductor memory to exchange commands and responses through antenna coils. A condition under which only a...
7405660 Error recovery in RFID reader systems  
RFID systems, devices, software and methods are adapted for receiving from an RFID tag at least waves that communicate at least a first version of its code. An output tag code is output that is...
7394377 RFID edge server with security plug-ins  
An RFID edge server using an application server allows for improvements in an RFID system.
7394370 Apparatus and method of acquiring and storing data of close contacts  
A method of recording close contacts for disease control, the method including the steps of using a device to transmit identity and date/time of contact details to a similar device for each close...
7388499 Electronic tag authentication device and communication adjustment method with electronic tag  
The electronic tag authentication device of the present invention authenticates the contents of an electronic tag attached to goods. The electronic tag authentication device comprises an antenna...
7388492 Pallet recycling system, radio tag, pallet, and management method and program  
A pallet recycling system for managing a pallet to support pallet recycling, comprising: a managing section connected to a network that manages a pallet distribution;a radio tag given to the...
7388469 Electronic key apparatus for vehicle and arrest cancellation method for rotation arresting device  
Based upon the results of an ID check with an ignition knob lock device which prevents rotational operation of an ignition knob which is used when stating an engine of a vehicle, and of an ID...
7387235 Mutual authentication security system with recovery from partial programming  
Memory contents in an electronic key are re-programmed using a base station from a multi-byte pre-existing or default value. If writing the new secret code value is interrupted and results in a...
7382229 Method of managing a plurality of electronic microcircuit chip readers and equipments for implementing said method  
Method and system for coordinated management of a plurality of contactless radio-frequency readers of chips incorporating electronic microcircuits. The method includes transmitting, in a first...
7376391 Wireless data transmission between base station and transponder with encoding/decoding parameter adjusted dependent on header symbol duration  
Data encoded in packets modulated onto a carrier wave is transmitted between a base station and a transponder. Each packet includes a header section containing at least a reference symbol, and a...
7372359 Programmable-code electromagnetic transponder  
An electromagnetic transponder including: a parallel oscillating circuit adapted to extracting a supply signal from a radiated field; in parallel with the oscillating circuit, several branches...
7369936 Remote start control system including an engine speed data bus reader and related methods  
A remote start control system may include an engine speed data bus reader at the vehicle for reading the engine speed signal on the vehicle data communications bus, and a remote start controller...
7362212 Communication methods, systems, apparatus, and devices involving RF tag registration  
One technique of the present invention includes a number of Radio Frequency (RF) tags that each have a different identifier. Information is broadcast to the tags from an RF tag interrogator. This...
7358848 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...
7359696 Communication apparatus, portable terminal and communication control program  
A communication apparatus, including: an identification information request receiver configured to conduct wireless communication a plurality of times without interruption with a portable device;...
7356495 Supply chain management using item detection system  
A system to monitor item placement and item movement on surfaces includes an identification system embedded in one or more surfaces and a computer. The identification system periodically scans the...
7352318 Method and system for real time pulse processing in ATCRBS/Mode-S transponders  
An apparatus for processing pulses in ATCRBS/Mode S interrogations includes an antenna for receiving a radio frequency interrogation signal. The radio frequency interrogation signal is...
7348875 Semi-passive radio frequency identification (RFID) tag with active beacon  
A radio frequency beacon device for use with a backscatter interrogator includes a processor; a receiver coupled to the processor; a backscatter modulator coupled to the processor; and an active...
7345585 Network based device for providing RFID middleware functionality  
Some embodiments of the present invention provide middleware functionality integrated into a module of a network device, such as a router or switch, that is configured to provide...
7342481 Method and circuit arrangement for wireless data transmission  
A method and circuit for wireless data transmission between a base station and one or more transponders is provided in which the base station modulates a carrier signal with a modulation signal...
7336154 Method for selecting one or more transponders  
One or more transponders are selected by a base station out of a plurality of transponders. For this purpose an identification bit sequence (IB) that is or includes a random number bit sequence...
7330708 Tuning circuit with amplitude attenuation function and integrated circuit for radio communication apparatus  
There is disclosed a tuning circuit having a coil and a capacitor comprises a resistance-adjustment circuit connected in parallel with the coil and the capacitor. The resistance-adjustment circuit...
7325723 System and method for detecting persons or objects in definite areas provided each with at least an entrance  
A system and a method are described for detection of individuals (8) or objects in a plurality of delimited spaces (10), each having at least one entrance (6). The detection system comprises LF...
7327259 Method and apparatus for managing online and offline documents with RFID technology  
Provided are a method and an apparatus for managing online and offline documents using RFID technology. The method includes: pre-registering online and offline documents using radio frequency...
7327218 Electronic identification system with forward error correction system  
An electronic radio frequency (RF) identification system 10 is disclosed and claimed. The system includes an interrogator 11 and a plurality of RF transponders 12.1 to 12.n. In use, each...
7327257 RFID tag with modifiable and reversible read range  
According to some embodiments, read range control update information is received in a radio frequency (RF) signal. The information is used to control a read range of an antenna. The read range of...
7321289 Systems and methods for reducing interference by modulating a reader transmittal signal within the transmission channel  
Systems and methods for reducing interference by warbling a reader transmitted signal are described. To reduce interference in a densely packed multiple reader environment, a reader modulates or...
7319844 System comprising a plurality of devices that can be addressed by radio frequency, and method for addressing by activation of a transparent mode  
Each device (1a, 1b, 1c) comprises a processing circuit connected to a first antenna (4), designed to be coupled to an external antenna (3, 5), and a second antenna (5) designed to be coupled to...
7317378 Product identification tag device and reader  
An electronic identification tag, usually in very small size, responds to a reader with an identification code unique to the object to which the tag is attached. The stand-alone device responds to...
7304575 Low cost power amplifier linearization in an RFID radio transmit chain  
A power amplification system within an RFID reader uses feedback to linearize a transfer function of the system. ASK modulation is used in the system. An envelope of an output signal of a...
7295117 RFID device test thresholds systems and methods  
Systems and methods are disclosed herein to provide RFID device test techniques. For example, in accordance with an embodiment of the present invention, a radio frequency identification (RFID)...
7286042 Passive communication device and passive access control system  
A communication device comprising an internal power source, first and second receiver elements for receiving signals transmitted from the base station, and a processor selectively responsive to a...
7284703 System and method for minimizing unwanted re-negotiation of a passive RFID tag  
A system and method is provided for minimizing the unwanted re-negotiation of passive RFID tags. Each tag stores a confirmed read flag to indicate whether the tag has been previously read. During...
7286041 Maintenance of an anticollision channel in an electronic identification system  
Transponders in a system execute commands issued by an interrogator. The interrogator sends out interrogation signals, and a transponder answers with a start signal. The interrogator then modifies...
7283037 RFID tags adjusting to different regulatory environments, and RFID readers to so adjust them and methods  
An RFID tag has an antenna to receive a configuration signal, and a circuit with a controller that can configure the RFID circuit responsive to the configuration signal. Configuring is such that...
7277681 Interrogator of moving body identification device  
To reduce the size, weight and cost of an interrogator which is included in an RFID system and required to have a high output power, the interrogator for transmitting a signal shares a radio wave...
7274910 Advanced capability RFID system  
A radio-frequency transponder device having an antenna circuit configured to receive radio-frequency signals and to return modulated radio-frequency signals via continuous wave backscatter, a...
7271701 System for commonly utilizing vehicle  
A system for commonly utilizing a vehicle in which illegal use of the vehicle can be surely prevented. In the system for lending a shared vehicle, which is parked in a parking area and of which...
7256681 Asset tracking using wireless LAN infrastructure  
Transponders capable of providing identification information and possibly additional information are detected from wireless access points of a computer network as a substitute for closed radio...
7245200 Door unlocking controller and control method thereof  
When a request to unlock a door of one side portion of a vehicle is input, an ID request signal is transmitted from a first transmitting antenna provided in the one side portion, and an alarm...
7245213 RFID readers and RFID tags exchanging encrypted password  
RFID system components, such as readers and tags, communicate where at least a portion of data or a password is transmitted in encrypted form. The reader transmits a command, along with data or a...
7240838 Transponder and reader system  
A reader for identifying passive transponders includes an antenna for receiving a first signal (Tx) from the reader and for transmitting a second signal (Rx). The reader includes: a time base...
7233227 Vehicle anti-theft system and method, and application of this system for managing a fleet of vehicles  
A vehicle anti-theft system, includes in a passive relay enabling an electronic label (2) usually identified when proximate to a transponder (1) to be offset. The electronic label (2) is...
7221259 Electronic label interrogation through incidental electromagnetic radiation  
A system for electromagnetically interrogating electronically coded labels is provided. The system includes at least one electromagnetically interrogatable electronic coded label, an interrogator...
7218230 Multi-dimensional antenna in RFID system for reading tags and orientating multi-dimensional objects  
A RFID system applying to a three-dimensional jigsaw is provided. The RFID system includes a jigsaw substrate having a plurality of blocks, a plurality of jigsaw units corresponding to each blocks...