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Patent # Description
US-4,905,319 Superconducting device including a thin chromium film with negative susceptibility
A room temperature superconductor having a metal thin film with negative susceptibility coated upon a substrate. The thin film is covered by a protective coating...
US-4,905,318 Semiconductor hall element with magnetic powder in resin
A highly magnetic Hall element comprising a substrate, a Hall element chip mounted on the substrate, and a magnetic member interposed between the substrate and...
US-4,905,317 Path memory control method in Viterbi decoder
A path memory control method in a Viterbi decoder outputs, when a plurality of decoding steps are required to trace back to a final stage of a surviving path,...
US-4,905,316 Magnetic field generating system for magnetic resonance imaging system
A magnetic field generating system for use in a magnetic resonance imaging system to apply a static magnetic field and additionally a gradient field and a high...
US-4,905,315 Camera tracking movable transmitter apparatus
Apparatus for mounting and positioning an associated device such as a camcorder which includes a transmitter for producing a control signal, a substantially...
US-4,905,314 Semiconductor integrated circuit device having an object circuit to which output voltages of the sub- and main...
A sub-booster circuit for further stepping up an output voltage of a main booster circuit includes a first MOS transistor having a drain connected to the output...
US-4,905,313 Gas/liquid contact apparatus
A gas/liquid contact apparatus that includes a plurality of packing sheets arranged in parallel, vertical, upright, face-to-face relationship. The packing sheets...
US-4,905,312 Image logic operation device
An image logic operation device for performing logic operations on images, the device comprising a first image unit for storing a first light image and sending...
US-4,905,311 Optical surface roughness measuring apparatus with polarization detection
An optical surface roughness measuring device for measuring roughness of a surface of a subject in a non-contacting manner. The apparatus includes a laser device...
US-4,905,310 Laser cutting and welding of sheet metal using a shield of compressed air
A method of simultaneously cutting and welding metal, especially relatively thin sheets of metal, utilizing laser energy. The invention uses surface tension in...
US-4,905,309 Optical remote control system
An emission device includes a first electro optical converter for converting electrical energy from a supply source into optical energy. A second electrical...
US-4,905,308 Noise parameter determination method
A method of determining a receiver's noise parameters by measuring one noise power for a first source noise temperature and a plurality of noise powers for...
US-4,905,307 Synchronous receiver with direct mixing
A synchyronous receiver with direct mixing comprising a phase detector and an amplitude demodulator is provided with a square-law envelope detector and means for...
US-4,905,306 Filter switching arrangement for a tuner
In a tunable filter including first and second inductors, a varactor diode, and a bandswitching diode connected intermediate the inductors to select the inductor...
US-4,905,305 Method and apparatus for controlling the frequency of operation and at least one further variable operating...
The operating frequency of a radio transceiver and at least one further variable operating parameter of the radio transceiver are controlled in accordance with...
US-4,905,304 Mobile radio facility
A mobile radio facility for installation in a motor vehicle which already includes a junction cable extending from a location in the trunk to a location in the...
US-4,905,303 Television audio signal converter
A converter to convert audio signal associated with commercial television transmissions for input into conventional AM/FM automobile receivers so as to...
US-4,905,302 Trunked radio repeater system
A digitally trunked radio repeater system provides substantial improvements in timeliness of channel acquisition and channel drop, and in reliability of critical...
US-4,905,301 Selective system scan for multizone radiotelephone subscriber units
A radiotelephone subscriber unit which overcomes the problem of attempting to access an undesired radiotelephone system is disclosed. A comparison between the...
US-4,905,300 Motor control and power systems and methods of operation thereof
A pulsating D.C. voltage is developed by a rectifier 86 and is filtered by a capacitor 100 to facilitate application of a relatively smooth, enhanced D.C....
US-4,905,299 Hold down bearing retainer
A single bolt hold-down bearing retainer device for a bearing assembly nested in a circular cavity of a cast housing. The retainer is in the form of a plate-like...
US-4,905,298 Resealable closure
There is disclosed a releasable closure for a container which is particularly suitable for plastic bags. The closure is formed by a pair of opposed bands of...
US-4,905,297 Arithmetic coding encoder and decoder system
Apparatus and method for compressing and de-compressing binary decision data by arithmetic coding and decoding wherein the estimated probability Qe of the less...
US-4,905,296 System for shape recognition
A system for shape recognition includes a spatial convolution filter which has an approximately band pass response. The filter is applied to a camera image and...
US-4,905,295 Code sequence matching method and apparatus
A code sequence matching method adapted to pattern recognition of characters compares one code selected from an unknown code sequence which is extracted from an...
US-4,905,294 Image processing apparatus
An image processing apparatus comprises image data input means and processing means for processing an input image data. The processing means includes image...
US-4,905,293 Image input device
An image input device for optically sensing a fingerprint or like pattern to convert it to an electrical signal is disclosed. A guide is provided on a contact...
US-4,905,292 High probability of detection, low false alarm multisensor ATR
An Aided Target Recognition System (ATR) is provided wherein the recognit abilities of two ATR sensor subsystems with mutually exclusive false alarm...
US-4,905,291 Cyberoptic audio level control system
The specification discloses an audio signal level control system including a center-tapped photocell incorporated into an attenuator bridge. The cell elements...
US-4,905,290 Howling protective apparatus
A howling protective apparatus comprising a phase fluctuation control means, a wave peak comparison means and a timer circuit, wherein said phase fluctuation...
US-4,905,289 Apparatus for the digital storage of audio signals employing read only memories
A semiconductor read only memory (ROM) serves to store digitized audio signals in a redundancy free form. The output of the memory is coupled to the input of a...
US-4,905,288 Method of data reduction in a speech recognition
The present invention describes a method and arrangement for reducing a sequence of initial frames into a reduced set of representative frames by combining the...
US-4,905,287 Pattern recognition system
Multiple similarities between phoneme feature data extracted from a word input signal and reference pattern data read out from a reference pattern memory are...
US-4,905,286 Noise compensation in speech recognition
In speech recognition it is advantageous to take account of noise levels both in recognition and training. In both processes signals reaching a microphone are...
US-4,905,285 Analysis arrangement based on a model of human neural responses
A sensory type pattern such as a speech or other sound pattern is analyzed to obtain the spectral distribution of the neural response thereto. A plurality of...
US-4,905,284 Audio system for vehicular applications
Electronic crossover modules and systems in accordance with the invention employ a set of crossover channels in each module together with internal input...
US-4,905,283 Surround decoder
A surround-decoder comprises terminals to which left and right stereo input signals are applied, a decoder for processing the left and the right stereo input...
US-4,905,282 Feature negotiation protocol and dynamically adjustable retraining sequence for a high speed half duplex modem
A feature negotiation protocol for synchronous operation and a dynamically adjustable retraining sequence. An originating modem, after completing conventional or...
US-4,905,281 Security apparatus and method for computers connected to telephone circuits
A security apparatus for interfacing a computer system with a telephone circuit includes a modem and a controller interfacing between the telephone circuit and a...
US-4,905,280 High security videotext and videogame system
A pay per use system allows the broadcast of television, videotext, and videogame programming all in the same system. The programming is broadcast in scrambled...
US-4,905,279 Learning-functionalized remote control receiver
A remote control receiver which can be "taught" to recognize a remote control signal from any of a plurality of remote control receivers as its control signal....
US-4,905,278 Scrambling of analogue electrical signals
In a system in which an audio signal is scrambled by being divided into blocks each comprising a plurality of segments, and the segments are re-ordered within...
US-4,905,277 Method for enciphering and deciphering instructions in a microcomputer, and a microcomputer used for effecting same
A method for enciphering and deciphering instructions in a microcomputer and a microcomputer for effecting the same, in which, an instruction is coded into at...
US-4,905,276 Telephone earpiece extension attachment
The open end of a thin shell is snugly fitted over the earpiece of a standard telephone handset to secure the shell on the handset. Teeth or projections can...
US-4,905,275 Laminar type telephone protector block and interconnectable modular elements therefor
A laminar type telephone protector block of quick clip type including grounding means incorporated into the individual laminae, and a novel protector module of...
US-4,905,274 Key telephone management system
A key telephone management controller system enabling telephone customers to control and implement changes to customer key telephone systems served by a...
US-4,905,273 Data transmission system
A device is placed intermediate a data transmitter, such as a facsimile machine and the public switched telephone network, and selectively processes the calls in...
US-4,905,272 PABX cordless telephone system
A PABX cordless telephone system comprising a base station (10) and a plurality of handset (HS1 to HS5). The base station is connected to the public switching...
US-4,905,271 Method of preventing auto theft
A method of preventing auto theft utilizes an anti-theft system and a mobile telephone system. When abnormality indicative possible auto theft occurs, the...
US-4,905,270 Vehicular hands-free telephone system
A voice of user is picked up by a microphone built in a sun visor of a vehicle. The output of microphone is frequency-modulated by an FM transmitter powered by a...
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