Class 340/825.7 - Phase responsive actuation

Subclass of Class 340 - Communications: electrical
Definition: Subject matter wherein the control signal includes a phase
No. of patents: 36
Last issue date: 03/04/2008

Number	Title	Issue Date
7339493	Multimedia controller A portable communication device (200) can serve as a multimedia controller and can include a transceiver having wireless access to a client computer (510) coupled to a multimedia device (515, 520, and 525). The multimedia controller can a...	03/04/2008
7256693	Detector device The present invention relates to a detector device and, more particularly, to a detector device comprising a self-diagnosis means for monitoring the correct performance or otherwise of the device. During testing, the device, which normally operates using the Doppler...	08/14/2007
7154540	System for enhancing video Pan, tilt and zoom sensors are coupled to a broadcast camera in order to determine the field of view of the broadcast camera and to make a rough estimate of a target's location in the broadcast camera's field of view. Pattern recognition techniques can be used to de...	12/26/2006
7102498	Remote keyless entry system with two modes of demodulation A remote signaling receiver system includes a receiver that operates in two different modes of demodulation to accommodate different types of signals from different types of transmitting devices. A first demodulator, preferably an ASK demodulator, is adapted to proc...	09/05/2006
7072668	Durable global asset-tracking device and a method of using the same A communication system for tracking an asset globally accesses multiple communication networks and switches among them, choosing the most economic, available communication mode without need for a constant power supply. An integrated motion sensor uses a combination ...	07/04/2006
7044393	Semiconductor integrated circuit device and contactless IC card A semiconductor integrated circuit device (IC) and a contactless IC card including a receiver circuit that is able to stably demodulate information signals superimposed on AC signals from an interrogator. The receiver circuit included in the IC is equipped with ante...	05/16/2006
7019635	Method and device for the detection of sources in a communications system A method for the detection of M0 sources common to several observations u(t) and v(t) within a single array of sensors, the observations having different lengths N1 and N2, comprises at least the following steps: defini...	03/28/2006
7006590	Timing circuit with dual phase locked loops A timing circuit for generating clock signals, includes an acquisition digital phase locked loop with a wide capture range for closely following an input signal with its associated disturbances. An output digital phase locked loop having a slow response relative to ...	02/28/2006
6911900	System and method for electronically signalling along a fence line A system for electronically signalling along a fence line, comprising one or more transmitter device(s) for connection to the fence line from which control signals or information may be sent along the fence line and one or more receiver device(s) for connection to t...	06/28/2005
6784785	Duplex transmission in an electromagnetic transponder system A method of transmission between two elements chosen from a terminal and a transponder, each element including an oscillating circuit, a modulator and a demodulator, including simultaneously performing a transmission in amplitude modulation of a signal transmitted f...	08/31/2004
6617962	System for multi-standard RFID tags A reader for a radio frequency identification system capable of simultaneously reading tags operating a multiple frequencies. The reader includes a radio frequency module for each operating frequency of the tags. The radio frequency modules are coupled to...	09/09/2003
6469620	Method and apparatus for protecting a transmission path between a base unit and a mobile key unit The invention relates to a method and apparatus for protecting a transmission path between a base unit and a mobile key unit in an access control system, in particular for motor vehicles. A carrier signal which is modulated with a user signal is transmitt...	10/22/2002
6411199	Radio frequency identification system A radio frequency identification system includes a transponder and a transponder reader. The transponder, responsive to an interrogation signal continuously transmitted by the transponder reader, generates a transponder signal modulated by an identificati...	06/25/2002
6150952	System with a lock and a key which cooperate according to the transponder principle, as well as a key and a lock for such a system A key and lock system has a key with an integrated transponder coil that is connected to a transponder unit, and a lock with an integrated write/read coil. The key has a key bit portion and a bow portion. When the key bit portion is inserted into an elong...	11/21/2000
5929772	Data processing device and method for use in a paging receiver A data processing device of a paging receiver having a controller for analyzing decoded paging data and for performing a paging function, wherein address data and message data of all frames are decoded and transmitted to the controller at a section of a r...	07/27/1999
5734333	Device with spectral purity for the remote exchange of information between a portable object and a station A system for remote information exchange between a portable object and a station and in which in order to minimize an undesirable profitless cluttering in the radio frequency environment of the system, the phase variation between the first and second alte...	03/31/1998
5715261	Method of interactive communication notably for household applications The present invention relates to a method of interactive communication, notably for the household applications. The method consists in realizing, on a coaxial cable, a bi-directional exchange of messages from a single primary station towards secondary sta...	02/03/1998
5512886	Selective call receiver with computer interface A selective call messaging peripheral (100) capable of receiving at least one message and communicating the at least one message to an electronic information processing device (200). An information signal is received and demodulated to provide a recovered...	04/30/1996
5194858	Lighting control system with set/reset ground remote A lighting load can be turned on/off manually from one or more remote switching stations as well as from a master switch controller station, with ON/OFF control signals produced at the remote switching stations being transmitted to the master controller c...	03/16/1993
5128664	Search technique for identifying slave devices connected to a serial bus A slave device detecting system utilizes the past history of devices connected to a data bus to optimize the time required to re-establish communications. Whenever a master controller senses a condition that requires an assessment of devices on the bus, i...	07/07/1992
5099234	Switching matrix network for digital audio signals A switching matrix network provide switching of digital signals of different sampling frequencies by sampling the digital signals at a sampling frequency greater than any digital input signal and generating an interference signal as a measure of the phase...	03/24/1992
5095309	Method and apparatus for modulating and detecting a subcarrier signal for an inductively coupled transponder A transponder system including a transponder and an interrogator having a transmission coil for producing a high-intensity electromagnetic field for inductively powering the transponder and two receiver coils for receiving a low-intensity electromagnetic ...	03/10/1992
4949171	Commutation grid A commutation grid in which any of N input signals can be output to any of M outputs. The input signals are fed to an input card which passes the input signals to an output card via a commutation card. These card elements are supported in a rack system wh...	08/14/1990
4796028	Apparatus for bidirectional data transmission An apparatus for bidirectional data transmission includes a predominantly stationary part with a data line connected to cause a phase shift of an osicllator signal for transmission to a predominantly mobile part. AC signal components of the oscillator sig...	01/03/1989
4710769	Transmit-secure non-blocking circuit-switched local area network A switching system or local area network is non-blocking, transmit-secure and employs a star type topology. A back plane uses n(n-1) bus lines to interconnect n ports. Each port can transmit on any one of n-1 bus lines depending on the identity of the des...	12/01/1987
4563679	Carrier control method by using phase-pulse signals An address discrimination channel and terminal selection channels are established in the low-noise region of a first one of two succeeding cycles of an alternating current carrier wave, whereas returning channels are established in the low-noise region of...	01/07/1986
4511896	Remote sensor system with bi-directional monitoring and control of operation An improved electronics system for transmission of low level analog signals rom a remote sensor to a control terminal utilizing a single pair of unshielded wires. A bi-directional exchange occurs between the sensor and control terminal which results in pow...	04/16/1985
4464659	Method and an apparatus for remote control of a vehicle or a mobile engine In a system wherein a vehicle can be remotely controlled from any one of a plurality of control devices, each of which can emit operation command signals to the vehicle, each control device can also emit switching signals, each designating one of the othe...	08/07/1984
4453156	Load control receiver and method of operation Method for detecting the presence or absence of an audio-frequency signal (VT) superimposed on a power supply network, the audio-frequency signal (VT) having a known frequency (fT) and an amplitude (AT) lying wi...	06/05/1984
4438405	Frequency discriminating device A frequency discriminating circuit for readily discriminating between two signals having closely adjacent frequencies in which the effects of drift of circuit elements are eliminated. A frequency mixer receives the signals to be discriminated which have c...	03/20/1984
4414678	Electronic up-down conting system with directional discriminator An electronic up-down counter system including a directional discriminator for accepting input pulses and for generating sequences of pulses which represent up-count and down-count signals. The count signals are applied to a reversible up-down counter hav...	11/08/1983
4413341	Method for exchange of data between central station and peripheral stations Modulation patterns and parameters are provided at the central station to form elementary signals of addresses of the peripheral stations from the elements of an address subsequence generated at the central station. Different modulation patterns and param...	11/01/1983
4380761	Digital phase decoder with collision detection A data communication system includes a communicating medium and a plurality of transceivers connected to the medium, each including a transmitter for transmitting phase-encoded data onto the medium and a receiver for receiving phase-encoded data communica...	04/19/1983
4379284	Coherent phase shift keyed demodulator for power line communication systems An apparatus and method for coherent phase demodulation of a binary phase shift keyed carrier includes sequentially processing plus and minus polarity samples of plural carrier segments occurring within each carrier data symbol. The samples for each segme...	04/05/1983
4358756	Alarm transmission system An alarm transmission system with portable receivers for watching a site, which system comprises a plurality of portable and removable autonomous detection units, a plurality of portable autonomous receiving modules capable of releasing signalling or warn...	11/09/1982
4067015	System and method for tracking a signal source A system for tracking moving signal sources is disclosed which is particularly adaptable for use in tracking stage performers, although a wide range of other uses is possible. A miniature transmitter is attached to the person or object to be tracked and e...	01/03/1978

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Class 340/825.7 - Phase responsive actuation