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7907060 |
Systems, methods and apparatus for detecting replacement of a battery in a remote control
Various embodiments of systems, methods and apparatus are provided for indicating to a user a low battery condition of a remote control for a controlled device. More particularly, a remote control...
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7779435 |
Methods and apparatus to export tuning data collected in a receiving device
Methods and apparatus to export tuning data collected in a receiving device are disclosed. An example method of collecting audience measurement data comprises collecting tuning data within a...
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7733248 |
Measuring and regenerating a variable pulse width
A system and process for receiving a variable pulse width signal and measuring and serially sending the measurements to a receiver that deserializes and regenerates the variable pulse width signal....
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7539257 |
Continuous phase modulation system and method with added phase pulse
A signal generator generates a coded or memory waveform having a trellis structure. A modulator is operative with the signal generator for adding at least one phase pulse to the trellis structure...
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7356141 |
Baud rate modulation encoding/decoding method and device for remote controller
A encoding/decoding method and device for a remote controller utilizing a baud rate to encrypt data for transmission. The encoding device includes an encoder encoding an identification code into an...
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7239707 |
Staggered pulse acquisition method and apparatus
A transmitter employing a cryptographic algorithm and key generates and transmits a staggered pulse signal that includes a plurality of high-power pulses that are part of a pseudonoise (PN) code....
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7030731 |
Wireless identification systems and protocols
Monitoring systems and protocols are disclosed that are flexible in mode operation and format depending on the environment in which they are used. Such monitoring systems and protocols are able to...
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6998813 |
Device for generation of a signal dependent on rotational speed for an electric motor, in particular for an electronically-commutated DC motor
The invention provides a device to generate an rpm-dependent signal, or a tachogenerator, having a plurality of magnet elements with alternating polarity which are arranged and distributed around...
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6760773 |
Infrared transmission codes for wireless keyboard and PC remote controller
The present invention relates to an infrared transmission protocol and more particularly to an infrared transmission protocol for wireless keyboard and PC remote controller. The transmission codes...
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6653968 |
System for generating a signal to superimpose information
A system for generating a signal which, in addition to first information representing the rotational speed of a rotating part, contains at least second information. The signal changes over time...
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6538595 |
System and method for using infrared remote control packet delivery in a wireless keyboard having a pointing device
An infrared (IR) keyboard having a communication protocol and a method for operating same includes circuitry for converting a standard recognized keystroke into a corresponding IR data word for...
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6480138 |
Method of transmitting data within pulse intervals of a rotational speed signal, and circuit arrangement for implementing the method
The present invention relates to a method of transmitting data in pulse intervals of a rotational speed signal, wherein the maximum number of the transmittable data is determined from the period of...
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6184916 |
Multiple-pulse, pulse width and position modulation systems and methods
Multiple pulse width and position modulation methods and systems use multiple pulse width and position modulation (PWPM) circuits driven from the same system clock and video data to provide...
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5691723 |
Apparatus and method for encoding and decoding data on tactical air navigation and distance measuring equipment signals
A method and apparatus for encoding and decoding data on navigation signal pulse pairs utilizes pulse position modulation (PPM). The pulse interval between a first pulse and a second pulse of the...
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5670958 |
Remote control method and device
The present infra-red remote control transmitter understands external formats, and those with toggle-bits and different carrier frequency ranges, and transmits signals in these data formats to the...
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5659299 |
High speed infrared communications system using pulse sets
An infrared communication system for transmitting a digital bit stream by telemetry in the presence of background radiation wherein each bit in the data stream is represented by a signature set of...
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5602553 |
Radio controlled servo extender method and system
A control system is disclosed to extend the range of rotation of a radio-controlled servo towards its physical limits. A microprocessor and its various interconnections are inserted between the...
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5587797 |
Process for encoding and transmitting information
The present invention relates to process for encoding and transmitting information wherein data, digitalized speech, image, or documents, optionally in colour, are encoded by multilevel combination...
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5565861 |
Multidigit counting wheel mechanism for a volume-measuring instrument
Multidigit counting wheel mechanism for a volume-measuring instrument. An absolute encoder for a measuring instrument includes a mechanical counting wheel mechanism consisting of five sensors,...
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5563600 |
Data transmission for remote-controlled security system
A remote-controlled apparatus improves the reliability of a vehicle security system. Each time the transmitting unit transmits data, a first code updating section changes a variable code storage in...
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5559499 |
Receiver for the reception of wirelessly transmitted information
The invention is directed to a receiver for receiving information transmitted without the use of wires, in particular by infrared light signals. The information is transmitted by a battery-operated...
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5459751 |
Demodulation circuit of communication control system
A demodulation circuit of the communication control system is disclosed, in which the rising edge and the falling edge of a symbol or a one-bit data subjected to pulse width modulation as inputted...
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5347110 |
Information transmission by the time modulation of a character display area
A system provides for transmission of information between an article carrying information and an apparatus for processing the information, in which the article includes an arrangement for...
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5252977 |
Digital pulse generator using digital slivers and analog vernier increments
A digital architecture for a pulse generator includes a triggerable voltage controlled oscillator (VCO) with two alternative sources of frequency control voltage, an internal DAC or a phase...
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5208598 |
Digital pulse generator using leading and trailing edge placement
A digital architecture for a pulse generator includes a triggerable voltage controlled oscillator (VCO) with two alternative sources of frequency control voltage, an internal DAC or a phase...
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4590410 |
Object sensing apparatus
An object sensing apparatus includes a plurality of light emitting diodes for illuminating a region of space and a plurality of closely arranged light detectors for receiving light reflected from...
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4293953 |
Bi-orthogonal PCM communications system employing multiplexed noise codes
A bi-orthogonal PCM communications system employing multiplexed noise codes o provide enhanced protection against interference. Two system approaches are described--a first of which employs active,...
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3965468 |
Logic pulser
A logic pulser is disclosed which provides controlled pulses for stimulating a digital logic circuit under test. The pulser is serially programmed, e.g. by means of a manually operated push button...
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3891985 |
Drone control system with pulse position encoding
1. A pulse encoder comprising a set of series connected pulse producers, a multiple frequency source, said source being connected to the input of one of said producers the latter being controlled...
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3832708 |
LORAN SIGNAL SYNTHESIZER
This specification describes a Loran simulator for simulating both type A and type C Loran signals. A pulse generator for generating Loran C pulse trains is driven from a counter. The counter has...
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3795864 |
METHODS AND APPARATUS FOR GENERATING WALSH FUNCTIONS
Apparatus for generating digital signals which are representative of the Walsh functions. In a first embodiment, a selection register receives the row address of a given row in a Hadamard array...
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3654559 |
WORD GENERATING APPARATUS
This disclosure includes embodiments of apparatus for generating patterns of pulses comprising fixed or random series of pulses of predetermined bit lengths using a first register driven by pulses...
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3521274 |
MULTILEVEL CODE SIGNAL TRANSMISSION SYSTEM
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3560965 |
SEQUENCING COMMAND ENCODING GENERATOR
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3336578 |
Detector of aperiodic diphase marker pulses
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3300775 |
Sequential bit binary detector circuit and system
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3229036 |
Data transmission apparatus
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3218634 |
Magnetic core matrix arrangement employing readout from selected nonmagnetized cores
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3215779 |
Digital data conversion and transmission system
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3200376 |
Binary signalling device including a code wheel and end-of-code-sequence detection
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3174132 |
Keyboard controlled signal transmitter for multiplex system
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3149324 |
Changeable plural digit pulse encoder
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3133280 |
Shaping the power density spectra of pulse trains
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3129395 |
Pulse group generator producing time spaced output pulses in dependence on spatial distribution of magnetic transducers along delay line
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3119097 |
Electrical signal generator
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3078337 |
Metering systems
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3056050 |
Switching system
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3027543 |
Pulse decoding circuit
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2980908 |
Methods and apparatus for data exchange
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2976104 |
Digital recording
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