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7602274 |
Dynamic configuration of a radio frequency transponder
A multi-channel remote keyless entry (RKE) transponder having dynamically re-configurable input channel selection, channel disable, settable sensitivity for each channel, wake-up filter timing...
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7583937 |
Digital interface and related event manager for integrated circuits
In one embodiment, the present invention includes a method for receiving at a transceiver from a baseband processor digital control information that includes both event and schedule information,...
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7583192 |
Radio frequency identification device and method
The present invention teaches a method of manufacturing an enclosed transceiver, such as a radio frequency identification (“RFID”) tag. Structurally, in one embodiment, the tag comprises an...
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7536169 |
Method of and apparatus for utilizing geographically spread cellular radio networks to supplement more geographically limited stolen vehicle recovery radio networks in activation of radio tracking and recovery of such vehicles
Extending the activation and tracking capability of stolen vehicle recovery dedicated radio-frequency networks by the supplementary use of widely geographically provided cellular...
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7501978 |
Short-distance ranging system
A system for ascertaining the range from an interrogator to one or more transponders comprises an interrogator that transmits an RF carrier that is received by each transponder, the energy in the...
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7489240 |
System and method for 3-D position determination using RFID
Determining the location of wireless devices is improved by storing location information in RFID devices. As RFID devices come within range of each other they examine a confidence level associated...
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7479884 |
System and method for monitoring objects, people, animals or places
An improved system and method for monitoring objects, people, animals, or places uses a passive Modulating Reflector (MR) tag where an antenna is alternately short and open circuited according to a...
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7447480 |
Wireless, especially mobile, communication device for communicating with communication devices in vehicles
A wireless, in particular mobile, communication device ( 8 ) for communicating with communication units ( 9 ) in vehicles ( 5, 6, 7 ), comprising a transmitter ( 26 ) and a receiver ( 29 ) for...
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7414517 |
Radio frequency identification transponder
A radio frequency identification transponder includes a power supply and a dynamic memory array that stores data. When power from the power supply ceases, the data in the dynamic memory array is...
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7405692 |
Detecting concealed objects at a checkpoint
Disclosed are systems, methods, devices, and apparatus to interrogate a clothed individual with electromagnetic radiation to determine if a concealed object is being carried. This determination...
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7362258 |
Transponder detection system using radio and light wave signals
A target object detection system for detecting a target object using a detector and a tag on the target object; the tag includes a radio wave receiver receiving radio wave from the detector; a...
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7324040 |
Method of automatically setting the gain of an interrogator receiver within a non-contacting identification system
An attack is activated in a receiver amplifier of an interrogator whenever an amplified input signal exceeds an attack threshold voltage value Vatt, and the receiver amplifier at least during a...
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7319368 |
Method and circuit arrangement for load modulation in a combination comprised of a transmitting and a receiving oscillator circuit
A method and circuit arrangement is provided for load modulation in a receiving oscillator circuit, which can be mutually coupled with a transmitting oscillator circuit, having at least one...
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7315274 |
Method and system for determining the position of marine vessels and similar objects
A method for determining the relative position between two or more objects in a marine environment, including waterways, of which at least one object can be maneuvered relative to one or more other...
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7295115 |
Radio-frequency identification (RFID) tag employing unique reception window and method therefor
A radio-frequency identification (RFID) tag employing a unique reception window and method for operating the tag system provides low-power operation for enhanced tag battery life, while providing...
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7286040 |
Cooperative vehicular identification system
Cooperative Vehicular Identification Systems and Methods, capable of monitoring and recording vehicular law violations, with the assistance and cooperation of the vehicles in violation, are...
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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...
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7245252 |
Method for determining the distance between two transmitting and receiving stations
In a method for determining the distance between two transmitting and receiving stations, a transmission signal is generated in each station and is transmitted as a series of microwave pulses...
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7245220 |
Radio frequency identification (RFID) controller
A radio frequency identification (RFID) controller within an RFID system includes an RFID interrogator interface configured to receive signals from an RFID interrogator. The RFID interrogator...
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7239264 |
Radar transponder
Transponders, receivers and position determining systems are described. In one embodiment, a transponder includes (i) an on-board receiver and associated receiving antenna for receiving incoming...
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7224291 |
Electronic vehicle toll collection system and method
A system for automatic collection of tolls includes an in-vehicle toll processor having memory for storing a toll-money-available quantity purchased by the user, and a toll-facility-identification...
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7221308 |
Joint stars embedded data link
A system comprises a radar for producing a radar interrogation signal, a transponder for receiving the radar interrogation signal and producing a transponder signal including a first linear...
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7209706 |
Communication apparatus and communication method
A communication apparatus and a communication method prevent responses from being simultaneously received from two or more communicating parties. A first NFC apparatus transmits data for requesting...
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7164380 |
Interrogator and goods management system adopting the same
An interrogator with an antenna that allows information exchanges with multiple transponders in a shorter distance of communication, by securing an intensified and uniform electromagnetic energy...
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7158031 |
Thin, flexible, RFID label and system for use
A radio frequency indentification (RFID) label includes an integrated circuit and an antenna. The label may also include two flexible films directly sealed to each other. The label may be affixed...
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7106245 |
Digital RF tag
An RF tag is provided to communicate with an interrogating source in which the tag has programmability and flexibility to uplink data to multiple platforms. As such the RF tag functions as a...
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7091860 |
Multi-frequency identification device
The present invention comprises a radio frequency identification device that utilizes multiple operating frequencies. In one embodiment of the present invention, one frequency (e.g., an ultra-high...
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7084768 |
Anti-collision interrogation pulse focusing system for use with multiple surface acoustic wave identification tags and method of operation thereof
The present invention provides a system for avoiding code collisions from multiple SAW identification tags and a method of operating such system. In one embodiment the invention provides for (1)...
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7046957 |
Reflecting modulator circuit comprising a negative impedance amplifier
A modulator circuit comprises a negative impedance amplifier which is operable such that a signal applied to the amplifier is reflected and amplified. Switching circuitry is provided for switching...
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7034741 |
Apparatus for detecting position information of a moving object
An apparatus for detecting position information of a moving object. The apparatus includes a transponder, a communication module, and a reader. The transponder is installed on a predetermined...
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7023342 |
Continuous wave (CW)—fixed multiple frequency triggered, radio frequency identification (RFID) tag and system and method employing same
A far field radio frequency identification (RFID) tagging and tracking system employing a plurality of continuous wave (CW), unmodulated signals selected from frequencies including a predetermined...
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6946952 |
Data carrier for transmitting data with different transmission parameters
A data carrier ( 1 ) for contactless communication with the communication station comprises firstly a reception stage ( 3 ) for receiving an interrogation signal (IS), secondly a generation stage (...
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6943725 |
Access control system with limited evaluation of code and distance information
An access control system for an object, particularly a motor vehicle, comprises at least one base station with a transceiver device that transmits a wideband modulated interrogation signal, at...
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6937639 |
System and method for positioning pulses in time using a code that provides spectral shaping
A system, method and computer program product for positioning pulses, including positioning pulses within a specified time layout according to one or more codes to produce a pulse train having one...
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6876296 |
Smart license tag system
A system for providing the identification and tracking of motor vehicles that includes a probe device that transmits a radio frequency modulated signal to a transponder unit that is located within...
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6873246 |
Frequency activated neutralizing generator system
The vehicle disabling system includes a vehicle control unit for positioning in a vehicle with a transceiver for transmitting and receiving signals to receive an inquiry signal and transmit an...
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6856275 |
Semiconductor article harmonic identification
An harmonic intermodulation article identification system comprises a scanning dipole antenna response to an RF intermodulation harmonic product radiated from RF diodes carried by or embedded in a...
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6784787 |
Identification system
A method and system for identifying a plurality of transponders in an interrogation involves transmitting an interrogation signal to the transponders and receiving, at a reader, response signals...
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6759967 |
Remote control for activating household video products and services
A remote control, particularly for a home entertainment system, includes a display screen generating a query regarding the status of the components. The status may include whether the component is...
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6745008 |
Multi-frequency communication system and method
A multi-frequency RFID remote communication system is provided that includes a plurality of RFID tags configured to receive a first signal and to return a second signal, the second signal having a...
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6717516 |
Hybrid bluetooth/RFID based real time location tracking
Devices having either wireless data communication capability or RFID tags can be located using dual function fixed devices which are distributed throughout a facility. The devices will identify...
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6714120 |
Inductor-capacitor resonant circuits and improved methods of using same
A tag which uses radio frequency waves transmitted from a scanning device in order to identify an item to which the tag is attached or with which the tag is associated. The tag includes a first...
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6661336 |
Enhanced identification system
A method and an identification system us for communicating between a reader and a plurality of transponders. The reader has a transmitter for transmitting a signal and each transponder includes a...
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6641038 |
Smart vehicle registration plate
A smart vehicle registration plate for a vehicle have a computing unit configured to process vehicle related information, and a display, the display having one or more information display regions,...
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6637703 |
Yard tracking system
A method for identifying and determining the position of rolling stock within a railyard using a system that includes an AEI reader, a plurality of elevated electronic imaging devices and a...
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6630900 |
Process for carrying out a non-contact remote interrogation
The invention relates to a system suitable for a remote interrogation of passive transponders using chirp signals for interrogation. The transponder preferably has an encoding unit ( 11 ), a...
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6600443 |
Method and apparatus to determine the direction to a transponder in a modulated backscatter communication system
Methods and systems for determining the direction to a transponder are disclosed. The methods and systems include transmitting a first signal to an area where communications with a transponder is...
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6597306 |
Communication device for determining the sequence of data carriers moving past said device
A communication device includes detection a detector ( 28 ) adapted to detect a value (V) which represents a maximum amplitude value of a data carrier signal (DS) produced by a data carrier as it...
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6583713 |
Method of controlling access to a movable container and to a compartment of a vehicle, and a secure cargo transportation system
A method of controlling access to a movable container, the method comprising controllably locking the container using an electronically actuated locking mechanism; storing in a memory a desired...
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6580356 |
Advanced personal identification systems and techniques
A method for identifying a person authorized to enter into a secured transaction, including implementing a security system to receive a coded signal that purports to identify as an authorized...
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