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| Number | Title | Issue Date |
| 7417556 | Wireless addressable lighting method and apparatus An improved technique of utilizing a centralized control protocol for lighting devices such as DALI. A technique is disclosed for utilizing such protocols in a wireless environment. The first step involves associating particular slave devices with a specified master... | 08/26/2008 |
| 7263292 | Methods and apparatus for controlling multiple infrared devices A method and apparatus for controlling a plurality of infrared devices (ICDs) is provided herein. A remote controller is used to generate an optical signal for controlling a plurality of ICDs. The optical signal generated by the remote controller is converted into a... | 08/28/2007 |
| 7224410 | Remote control device for a television receiver with user programmable means A remote control device for a television receiver having a user-controlled restore function. The remote control device has a user-programmable switch for enabling the user to store user-selected data in a memory, including TV input data and channel data. The restore... | 05/29/2007 |
| 7154566 | Programmable universal remote control unit and method of programming same A universal remote control unit stores signal formatting data which includes an indication of the category of device to which the signal formatting data corresponds. During programming of the universal remote control unit, the user provides a numerical entry which c... | 12/26/2006 |
| 7068181 | Programmable appliance remote control A universal remote control is provided. For each channel supported, a mode is initially established as rolling mode. For a fixed code appliance, a fixed code is received and stored, and the mode changed to fixed mode. When an activation request is received, the mode... | 06/27/2006 |
| 7024294 | Vehicle seat occupant status classification using multiple sensors A multiple sensor, vehicle seat occupant status determination system uses dynamic variations in occupant responsive sensor output due to accelerations of the vehicle seat to discriminate via a statistical method between sensors that are failed and those that are ope... | 04/04/2006 |
| 6914888 | Radio device with remote control A radio device with a plurality of adjustable transmitting and receiving functions is provided. According to the invention, the operating functions can be remotely controlled and remotely monitored via a remote control device. To this end, the remote control device ... | 07/05/2005 |
| 6895252 | Economical extension of the operating distance of an RF remote link accommodating information signals having differing carrier frequencies A system for economically extending the effective operational range of an infrared remote control system having a remote control unit with an infrared transmitter, and a controlled device having an infrared receiver. The system includes a first transmitter to receiv... | 05/17/2005 |
| 6373374 | Cordless phone system with speech recognition alarm A method for transmitting an alarm over a cordless broadcast system having a base station in communication with a mobile unit and a computer. The computer includes a speech recognition system. The method includes requesting an alarm setting for a specifie... | 04/16/2002 |
| 5109220 | Selective call controller A selective call controller, such as a paging terminal, and a method therefor is provided for receiving calls comprising first and second types of signal, such as numeric/alphanumeric or modem/DTMF. A determination is made of the type of signal being rece... | 04/28/1992 |
| 5055835 | Track to train communication systems A transponder circuit comprises a loop (4) for inductively coupling with an interrogator (2) to transmit a binary coded message to the interrogator (2); the loop (4) forms part of a tuned circuit which is tuned to a first resonant frequency Fc and which i... | 10/08/1991 |
| 5041826 | Identification system A passive integrated transponder (PIT) is attached to or embedded in an item to be identified. It is excited via an inductive coupling from an interrogator. The PIT responds to the interrogator via the inductive coupling with a signal constituting a strea... | 08/20/1991 |
| 4972435 | Frequency independent information transmission system The system is used for transmitting information wherein each possible message unit in a set, (e.g. the alpha-numeric symbol set) is defined by a specific interval (I=fs /fR) and messages are transmitted by conversion to the interval ... | 11/20/1990 |
| 4809299 | Frequency independent information transmission system The system is used for transmitting information wherein each possible message unit in a set, (e.g. the alpha-numeric symbol set) is defined by a specific interval (I=fs /fRR) and messages are transmitted by conversion to the interval... | 02/28/1989 |
| 4790019 | Remote hearing aid volume control A hearing aid comprises a microphone, a battery-operated earphone, and amplifying circuit connected to the microphone output, the amplifying circuit including a frequency-selective circuit component and a sound level adjustment circuit component connected... | 12/06/1988 |
| 4660215 | Transmitter/receiver system A transmitter/receiver system for converting digital information into a multi-frequency signal for transmission. A reference frequency signal is first transmitted, then a series of frequencies having information indicative of differences with the referenc... | 04/21/1987 |
| 4349841 | Method and system for increasing the number of instructions transmitted in digital systems, I.A. in systems for remote control of television receivers Method of increasing the number of instructions according to the invention consists therein that withing the command signal (6) additional instructions are transmitted, which after being decoded in the instruction decoder (1) and processed in the strobbin... | 09/14/1982 |
| 4323881 | Radio pager with reduced power consumption A radio-paging receiver gives a signal responsive to the receipt of a predetermined sequence of tone signals. The sequence is identified by an identification number stored in and read out of a read-only memory (ROM), which is a high-power consumption circ... | 04/06/1982 |
| 4322611 | Method and apparatus for detecting and indicating data An apparatus and method for detecting and indicating unknown data associated with a selected article having a unique identification code employs a plurality of stored data tones. The data tones are stored in numeric order, each tone having a frequency cor... | 03/30/1982 |
| 4315248 | Load control system for standard electric utility meter An automatic load control system for electric utility meters which includes an electric meter monitoring device which converts meter wheel revolutions into electronic digital pulses representing a known quantity of power consumption and a digital circuit ... | 02/09/1982 |
| 4306308 | Symbols communication system A data communications system for transmitting and receiving 64 different audio-frequency signals representing 64 respective alpha-numeric code symbols. A synchronizing signal consists of three time-spaced bursts where each burst consists of three audio-fr... | 12/15/1981 |
| 4198620 | Remote control receiver Apparatus for receiving remote control signals which comprise an alternat sequence of two chronologically successive pulses, the first pulse having a first predetermined frequency and the second pulse having a second frequency manually selected from a pr... | 04/15/1980 |
| 4197525 | Tone decoder An improved decoder for providing a decoder output signal when a tone signal contains frequencies that are sequentially within a predetermined passband surrounding first and second detection frequencies f1, f2. A tone signal is mixed... | 04/08/1980 |
| 4181893 | Battery saver for a tone coded signalling system A battery saver circuit for a tone coded personalized radio pager device or the like is described which includes a switchable frequency tone filter to detect a predetermined sequence of tones. One of several alert signals is generated when the correct seq... | 01/01/1980 |
| 4161722 | Signal decoding system A decoding logic receiver is used to actuate a device by remote control w and only when the proper coded signal is received.... | 07/17/1979 |
| 4142177 | Digital tone decoder system The digital tone decoder system includes a phase locked loop which receives an input tone signal, which may be accompanied by noise, and produces a replica of the input signal from which the noise has been filtered. The tone signal operates a gate to pass... | 02/27/1979 |
| 4127846 | Tone signal detecting circuit A tone signal detecting circuit for use in a paging receiver or the like employs an N-path filter in place of an active filter to facilitate circuit integration. The circuit includes a clock signal generating circuit responsive to a first control signal f... | 11/28/1978 |
| 4121198 | Remote control system In a remote control system, a transmitted signal comprising several bursts of f1 Hz arranged by coding input signal and other several bursts of f2 Hz inserted in spaces between said f1 Hz bursts is sent from a transmitter ... | 10/17/1978 |
| 4119800 | Radio-telephone interconnection system Circuitry for interconnecting a radio transceiver to a telephone line is disclosed. The circuitry provides controlled access to the telephone system lines from remote radio transceivers by way of a base transmitter-receiver unit which is connected through... | 10/10/1978 |
| 4103235 | Two-tone attention signal broadcasting system To broadcast a two-tone attention signal to receivers, a two-tone generator includes an interrupt switch, which, when a button is depressed, interrupts the audio signal from a broadcasting station and instead applies two combined frequencies which have be... | 07/25/1978 |
| 4068177 | Electronic control circuit A communication receiver for receiving speech and sequential control tones wherein a pulser circuit is provided and rendered operative in a predetermined manner to produce a pulse pattern for intermittently rendering the receiver operative. The receiver c... | 01/10/1978 |
| 4064487 | Receiver and decoder A receiver and decoder is disclosed wherein the receiver may be used as a remote control receiver in conjunction with a transmitter transmitting a carrier modulated with an encoded data train of first and second modulation frequencies for first and second... | 12/20/1977 |
| 4056808 | Ultrasonic remote control receiver suitable for TV receiver Ultrasonic remote control receiver wherein reference frequency pulses are counted during a counting cycle comprising a predetermined number of received command signals, each command signal occupying a different frequency channel. At the end of each counti... | 11/01/1977 |
| 4052700 | Remote control receiver A remote control receiver for producing different control signals in response to operating signals of respectively different frequencies. The receiver includes operating signal frequency counter which counts operating frequency oscillations in repeated co... | 10/04/1977 |
| 4031513 | RF data exchange system An improved remote meter reading system is disclosed comprising apparatus for transmitting UHF AM interrogating signals from an interrogating mobile or central station to a remote transponder station, and apparatus for retransmitting UHF FM data signals f... | 06/21/1977 |
| 4020449 | Signal transmitting and receiving device A signal to be transferred comprises a plurality of patterns each including a time region containing a plurality of frequency signals and a time region containing no frequency signal. When a signal to be transmitted is given in the form of numeric informa... | 04/26/1977 |
| 4019142 | Selectively callable receiver operated in accordance with tone characteristics The receiver includes a decoder responsive to certain characteristics of a coded signal, such as the frequency of tones, for producing a decoded signal indicative of second characteristics of the coded signal, such as the durations of the tones. A duratio... | 04/19/1977 |
| 4005428 | Secure remote control communication systems Coded messages, for use in the remote control of equipment for example, are transmitted and received in a manner in which substantially precludes unauthorized or accidental activation of a control associated with the receiving means. This secure communica... | 01/25/1977 |
| 4004276 | Telephone answering machines A remotely controllable electrical equipment is fitted with a decoder device associated with which is an unlocking circuit. Access to the electrical equipment is obtained by transmitting an access signal from a remote coder device. The access signal is ma... | 01/18/1977 |
| 4001772 | Coded signaling and control system A coded signaling and control system including one or more transmitters and one or more receivers, wherein both the transmitters and the receivers are coded or programmed to transmit a unique signal for actuating only selected ones of the receivers. Digit... | 01/04/1977 |
