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Patent # Description
US-4,833,728 Automatic station searcher
An automatic station searching device for a radio receiver in which the order in which the station data is stored in a memory device can be altered so that the...
US-4,833,727 Remote-controlled receiver arrangement using a modulated carrier
A remote controlled radio frequency receiver. A modulated carrier having a frequency F1 containing remote control data is received in a radio frequency receiver...
US-4,833,726 Helmet with two-way radio communication faculty
A helmet with two-way radio communication faculty including a cap-like outer shell made of hard and electrically insulating plastic material, a cap-like shock...
US-4,833,725 Unintentional radio transmission detection system
A system for detecting unintentional operation of a radio transmitter includes an antenna for receiving a r.f. signal and a detector for detecting the absence of...
US-4,833,724 Imaging device
An imaging device has a sensor unit body which moves over the region to be scanned in a prescribed direction, a plurality of linear imaging sensors each having a...
US-4,833,723 Image processing method for the removal of spot defects and apparatus therefor
A method for processing an image for the removal of spot defects comprising scanning and sampling the image to generate any array of pixel image values and...
US-4,833,722 Apparatus and methods for locating edges and document boundaries in video scan lines
Apparatus, and accompanying methods for use therein, for locating edges contained within each scan line of a scanned video image and also for locating horizontal...
US-4,833,721 Image processing apparatus
An image processing apparatus comprises a detector which includes an image reading section of a digital copier and which chases outline information of an image...
US-4,833,720 Encoding system capable of use with an optical scanner and serving as a man-machine interface language
A system of COMMUNICATION defined by an array of characters wherein each character following the first such character of the array is formed by a logical...
US-4,833,719 Method and apparatus for attentuating external origin noise reaching the eardrum, and for improving...
The invention relates to a method and to apparatus for attenuating externally originating noise reaching the eardrum while still enabling communication via an...
US-4,833,718 Compression of stored waveforms for artificial speech
In a digital text-to-speech conversion system of the type usually contained in all-software form on a floppy disk, memory requirements for the storage of...
US-4,833,717 Voice spectrum analyzing system and method
A voice spectrum analyzing method and system subjects a voice signal to frequency analysis by passing the voice signal through a filter bank containing a...
US-4,833,716 Speech waveform analyzer and a method to display phoneme information
A speech analyzer which displays a three dimensional spectral vector representing a phoneme on a two-dimensional screen utilizes an algorithm which generates and...
US-4,833,715 FM stereo receiver
An FM stereo receiver includes a level detecting circuit for detecting the received electric field intensity and a pseudo stereo circuit for changing the phase...
US-4,833,714 Speech recognition apparatus
A word speech recognition apparatus recognizes a speech inputted to a microphone (11). A feature extracting portion (20) extracts a feature parameter based on a...
US-4,833,713 Voice recognition system
A voice or sound recognition system including a microphone for converting a voice into an electrical voice signal, a frequency analyzer for generating a voice...
US-4,833,712 Automatic generation of simple Markov model stunted baseforms for words in a vocabulary
In a system that (i) defines each word in a vocabulary by a fenemic baseform of fenemic phones, (ii) defines an alphabet of composite phones each of which...
US-4,833,711 Speech recognition system with generation of logarithmic values of feature parameters
In a speech recognition system, logarithmic amplifiers avoid low level signal or noise problems by clamping all signals below an input threshold to a constant...
US-4,833,710 Pay television system
This invention, relating to a unidirectional television system such as satellite television broadcasting system, is intended to transmit and receive the charging...
US-4,833,709 Remote telephone signaling circuitry and device
A remote personalized telephone signaling device comprising a signaling means preferably in the shape of a toy, animal or human figure with movable and...
US-4,833,708 Remote cable pair cross-connect system
A telecommunications system includes at least one central office having an electronic supervisor for supervising a plurality of outside plant electronic...
US-4,833,707 Telephone lock unit
A telephone lock unit having two selectable locking modes will limit (a) all long distance and operator cell connections or (b) all local, long distance and...
US-4,833,706 Ensemble modem structure for imperfect transmission media
A high-speed modem that transmits and receives digital data on an ensemble of carrier frequencies spanning the usable band of a dial-up telephone line. The modem...
US-4,833,705 Data communication apparatus
A communication system includes a console unit having a plurality of one-touch dial keys and adbridged dial keys; a nonvolatile RAM for storing two different...
US-4,833,704 Automatic telephone answering and recording device with automatic two-way conversation recording function...
The present invention relates to an automatic telephone answering device with an automatic switching mechanism for switching between an automatic answering mode...
US-4,833,703 On-hook control circuit for answering machine
Control circuit for an answering machine having an electrical unit in parallel therewith including a controller for causing a first photocoupler to be conductive...
US-4,833,702 Telephone registration and cancellation control in a wide area cordless telephone system
In a wide area cordless telephone system, a wide service area is divided into a plurality of local service areas identified respectively by unique codes. Each...
US-4,833,701 Trunked communication system with nationwide roaming capability
Selected regional trunking systems are equipped with telephone interconnect capability and provided with local computers (106), which communicate with a national...
US-4,833,700 Mobile phone interface
An interface for establishing telephonic communication between a transceiver disposed within the interior of a vehicle and an externally disposed telephone...
US-4,833,699 X-ray film positioner
Disclosed is an x-ray film packet positioner device by means of which certain x-ray film views can be obtained and which is especially adaptable to all...
US-4,833,698 Apparatus for three dimensional tomography utilizing an electro-optic x-ray detector
The present invention is an apparatus for producing tomographic images of an object comprising: a beam of collimated radiation transmitted through the object in...
US-4,833,697 Writing instrument for electronic counting and gravity switch reset
A ballpoint pen of conventional size and shape has a movable ball point that is pressed upwardly in the direction of the housing of the pen when a mark is made....
US-4,833,696 System for controlling operation mode of modulator/demodulator
A modulator/demodulator operation mode control system specifies an operation mode, which is a combination of particular data transmission rate, multi-phase PSK...
US-4,833,695 Apparatus for skew compensating signals
A clock signal is transmitted to nodes of each of several interconnected circuits through a separate adjustable delay circuit, the time delay of each delay...
US-4,833,694 Signal receiver
A signal receiver for use in a system for communication and telecontrol over the electricity mains network has a correlation stage in which values of correlation...
US-4,833,693 Coded modulation system using interleaving for decision-feedback equalization
In a communication system, the combined advantages of decision feedback equalization and delayed decoding are achieved in a receiver by interleaving the signal...
US-4,833,692 Non-linear amplifier for digital network
Method and apparatus are disclosed providing selective amplification of signals whereby signals exceeding a threshold voltage are amplified while signals below...
US-4,833,691 Line equalizer
A line equalizer for eliminating a precursor interference component and postcursor interference components from a pulse signal inputted from a transmission line....
US-4,833,690 Remote eye pattern display for digital modems
A system for transmission of an eye pattern from a remote modem to a local modem for oscilloscope display includes divider circuitry for adjusting the speed of...
US-4,833,689 Electronic clinical thermometer
Disclosed is an electronic clinical thermometer comprising a temperature sensing unit, an arithmetic unit for calculating the body temperature from the signal...
US-4,833,688 Two-phase flow quality measuring device
A device and associated method comprising a probe (18) for drawing throttled two-phase steam into a tank (26) which has been evacuated and which can be closed...
US-4,833,687 Distributed feedback semiconductor laser
A distributed feedback semiconductor laser is provided with an optical waveguide having first and second straight-bar portions and a bending portion. The pitch...
US-4,833,686 Electrodes for transversely excited gas lasers
An electrode for a transverse gas flow laser has a simplified profile which facilitates the fabrication and subsequent alignment of the electrodes within a laser...
US-4,833,685 Laser cavity optically pumped and having a carrying tube
A FIR Laser cavity comprising a pair of concentric tubes of heatproof dielectric, a pair of nozzles intended for circulating within the space between said pair...
US-4,833,684 Distributed feedback laser with anti-reflection layer
A semiconductor laser of the distributed feedback (DFB or DBR) type is bounded in the longitudinal direction by end surfaces at right angles to the active region...
US-4,833,683 Coherent coupling of optical gain elements
Coherent coupling of a plurality of reflection type optical gain elements with a seeding laser is provided by illuminating the optical gain elements with fanned...
US-4,833,682 Moving slab laser
A moving slab laser includes a slab carriage driven to-and-fro along a precise rectilinear reciprocal path by a liner motor under the control of a computer. The...
US-4,833,681 Semiconductor laser wavelength stabilizer
Light relative to non-modulated output light emitted from a semiconductor laser is applied to an absorption cell. Frequency modulating signals are converted into...
US-4,833,680 Method of controlling the optical power output of a laser, and circuit for carrying out the method
An optical transmitter for digitally transmitting data by using NRZ pulses. The transmitter has a laser diode whose operating current consists of a bias current...
US-4,833,679 Method and apparatus with improved error correction and error information availability
A method and apparatus is disclosed that is selectively conditionable, during read processing, to operate in normal or diagnostic on-the-fly mode or in normal or...
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