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7978215 |
System using mobile device for setting up and activating agent shortcut operations to control electronic device at remote locations
Embodiments of the present invention provide for methods, devices and systems for setting up an agent shortcut operation to be activated at an electronic device in a network. The agent shortcut...
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7642898 |
Orthogonal frequency coding for surface acoustic wave communication, tag and sensor application
A secure apparatus, system, device and method for coding surface acoustic wave identification tags and sensors to enable unique sensor operation and identification for a multi-sensor environment....
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6512462 |
Dual function radio frequency remote control system for a motor vehicle
A dual function radio frequency remote control system has a dual function portable emitter, and a receiver carried on a motor vehicle. The signal emitted by the emitter contains a function code in...
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6005490 |
Bidirectional remote control apparatus
A CPU of controlled equipment generates an operating key information signal indicating operating key(s) to be depressed of a plurality of operating keys in the mode the controlled equipment is...
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4914431 |
Electronic control system for model railroads
An electronic control system for model railroads incoporates a motor control unit, an electronic state generator that generates particular operating state signals and a remote control signal...
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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...
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4654659 |
Single channel remote controlled toy having multiple outputs
A remote control toy includes a remote housing and a main housing. The remote housing has a transmitter and a signal generator associated with the transmitter. A plurality of function switches...
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4642633 |
Individual simulcast station control system
A simulcast paging transmitter remote control system capable of individual station control is described. The remote paging transmitter control system comprises an encoder and decoder which...
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4398193 |
Control apparatus
A control apparatus for controlling a plurality of characteristics, such as hue, color, brightness, sound and the like, of a reproduced video picture includes a transmitter having a memory for...
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4360808 |
Radio control apparatus with voice transmission capability
A radio controller for radio control of model vehicles and the like. The controller can be placed in a control mode wherein vehicle functions such as motor speed, direction, horn and lights are...
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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...
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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...
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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...
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4231019 |
Remote control arrangement for a medical appliance
In a remote control arrangement for a medical appliance, a transmitter and a receiver are provided. The transmitter has a frequency generator controllable by means of code words which generate...
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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...
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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...
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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...
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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...
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4045767 |
Method of ultrasonic data communication and apparatus for carrying out the method
In an ultrasonic data communication system, each datum is represented by a specific ultrasonic wave signal composed of plural frequency components arranged according to a specific one of...
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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...
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4024474 |
Circuit arrangement for wireless transmission of a control signal to the control path or a controllable semiconductor valve, in particular a thyristor
A circuit arrangement for the wireless transmission of a control signal to the control path of a controllable semiconductor valve, in particular a thyristor, is disclosed. The arrangement comprises...
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4023105 |
Counter type remote control receiver producing binary outputs correlated with numerical commands of a companion remote control transmitter
A remote control receiver for processing signals representative of a desired television channel number, each channel number being identified by a control signal lying in a respective band of...
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4006462 |
Digital remote control system with signal verification
A wireless remote control system has a transducer coupled to a sampling first counter for counting the frequency of incoming signals. A portion of the count distinguishes among various control...
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3990071 |
Data transmission system using frequency permutation codes
A data transmission system is disclosed in which the information to be transmitted comprises a plurality of unit information pieces each of which in turn is indicated by a numerical code of a...
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3893074 |
Remote control system utilizing signal frequency sequence
A remote control system comprising, a remote transmitter for producing a remote control signal having different frequency components arranged in a predetermined order, and a receiver producing a...
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3888181 |
Munition control system
1. A munition safing, arming and firing system comprising means for transting a code consisting of pulses of differing frequencies, means for receiving said code, means for segregating the received...
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3864674 |
Emergency Radio Warning System
A radio warning system includes emergency condition sensors for actuating respective radio transmitters which are modulated by identification generators to produce identification signals which...
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3810099 |
MEANS FOR PROVIDING A VEHICLE CONTROL SIGNAL CONTAINING DIRECTION AND SPEED INFORMATION
A vehicle control system, such as a rubber tired system in which a speed and direction signal is transmitted to a vehicle operational in the system. The speed and direction signal is binary coded...
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3780269 |
DATA READING SYSTEMS
A reading system is described for use with cards bearing data constituted by the resonant frequencies of a number of spiral elements. The reading system includes a number of drive lines equal to...
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3747054 |
WIRELESS CONTROL OF MACHINES INSIDE A PIPELINE
A control apparatus is disclosed, which includes an encoder-transmitter section having a plurality of fixed frequency oscillators generating a plurality of electrical control signals at different...
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3729710 |
FREQUENCY SELECTIVE REMOTE CONTROL SYSTEM
A system for selectively controlling the operation of a plurality of devices, e.g., the electrically operable water valves for an irrigation system, which are coupled across a two-wire power line....
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3465255 |
ENVIRONMENTAL CONTROL FOR RADIO FREQUENCY RECEIVING SYSTEMS
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3437997 |
AUDIOFREQUENCY REMOTE CONTROL SYSTEM FOR WORKING EQUIPMENT
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3406403 |
Variable frequency oscillator
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3378817 |
Signalling systems
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3366855 |
Garage door remote control system
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3355709 |
Code receiver responsive to plural tones in sequence
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3348226 |
Automaton command circuit
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3341815 |
Frequency responsive receiving system with noise prevention
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3327304 |
Command generator for remote control systems
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3319225 |
Remote control system including a frequency discriminating delay circuit
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3315263 |
Remote-control device
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3103664 |
Remotely controlled apparatus
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3039081 |
Frequency selective signalling system
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2939053 |
Radiant energy relay means
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