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| Patent # | Description |
|---|---|
| US-4,498,198 |
Binary signal decoding apparatus and method An apparatus and method is provided for decoding a transmitted comma free coded signal, having a plurality of bits and two message frequencies, and suitable for... |
| US-4,498,197 |
Optical receiver An optical receiver for responding to optical energy propagating in an optical fibre transmissions path (1) is detected by a reverse-biassed p-i-n diode (2)... |
| US-4,498,196 |
Testable optically isolated control circuit A testable physically isolated control circuit includes a first unit 10, a second unit 40, and an optical coupler 30 to couple units 10 and 40 together. The... |
| US-4,498,195 |
Radio interference detection device for use in a multi-channel access
angle-modulation radio system A radio interference detection device for use in a multi-channel access angle-modulation radio system. A detecting system detects a received signal prior to... |
| US-4,498,194 |
Multifrequency scanning receiver with priority frequency monitoring A scanning receiver is provided with a pause detector which causes the receiver to tune to a priority channel during pauses in the transmission on a nonpriority... |
| US-4,498,193 |
Jammer transmitter A jammer transmitter having a comb spectrum generator which includes a pulse generator adapted to produce a pulse train at a frequency corresponding to the... |
| US-4,498,192 |
Bag having an overlapped closure and method of fabricating the same An improved bag construction, and a method of bag forming, are disclosed which gives an economical yet strong, burst- and leak-resistant closure without the... |
| US-4,498,191 |
Digital automatic frequency control with tracking A microprocessor controlled phase locked loop tuning system is disclosed which uses a single AFC detector whose threshold is controlled by the microprocessor.... |
| US-4,498,190 |
Aquatic animal containing devices A device for containing live aquatic animals, e.g., lobsters, fish, etc., after they have been caught comprises a open mesh bag clamped or tied to a tubular... |
| US-4,498,189 |
Comparator suitable for a character recognition system In a pattern matching method, the input pattern of a character is compared with each of a plurality of standard patterns to detect similarities and differences... |
| US-4,498,188 |
Electronic stethoscope for monitoring the operation of a prosthetic
valve implanted in a patient's heart An electronic stethoscope for monitoring prosthetic valves for hearts includes a casing to which the center portion of a spring member is mounted. A weighted... |
| US-4,498,187 |
Electronic postage meter having plural computing systems An electronic postal meter has a control unit, an accounting unit and a printing unit, each incorporating a CPU having a separate crystal controlled clock.... |
| US-4,498,186 |
Data set diagnostic system A voiceband data set network includes a control data set (10), a plurality of tributary data sets (4a, 4b . . . 4n) and a diagnostic control device (5).... |
| US-4,498,185 |
Process for preventing burn-off on a current-conducting electrode for
metallurgical furnaces and electrodes The electrode has a durable upper part and a consumable tip. A plurality of copper tubes extend through the upper part. The connection to the consumable tip is... |
| US-4,498,184 |
Jinc-trap resonator A Jinc-trap resonator has a Fourier transform resonator structure with a Jinc-trap spatial filter disposed in one of two opposite end transform planes. A near... |
| US-4,498,183 |
High repetition rate, uniform volume transverse electric discharger
laser with pulse triggered multi-arc... A high power excimer laser emits a pulsed output at a high repetition rate in the ultraviolet wavelength region and a uniform power output across the laser beam.... |
| US-4,498,182 |
Continuous wave sper laser Continuous wave laser oscillation has been achieved in a segmented plasma excitation and recombination device in the presence of a low-pressure background gas... |
| US-4,498,181 |
Laser arrangements The invention provides a laser arrangement including in its discharge circuit a switching thyratron which is capable of conduction normally in one direction and... |
| US-4,498,180 |
Method of maintaining a predetermined beam direction in a laser pulse
transmitter and an apparatus for carrying... The invention relates to a method and an apparatus for maintaining a predetermined beam direction in a laser pulse transmitter having a laser resonator including... |
| US-4,498,179 |
Modulated infrared laser with two coupled cavities The intracavity modulated laser includes a main cavity and an adjacent coed cavity with a gain cell in the main cavity and an electro-optic modulator in the... |
| US-4,498,178 |
Data error correction circuit A data error correction circuit is provided, which receives input data having check bit data added thereto, the input data being divided by a generator... |
| US-4,498,177 |
M Out of N code checker circuit An N bit input word is partitioned into parts, preferably N/3 parts of 3 bits each. Each part is counted in parallel for the number of binary ones contained... |
| US-4,498,176 |
Method and apparatus for the error-free synchronization of asynchronous
pulses Method and apparatus for the error-free synchronization of asynchronous pulses through logical interconnection of the asynchronous pulses with clock pulses of... |
| US-4,498,175 |
Error correcting system An error correcting system uses an error location polynomial which is defined by double correction BCH codes each consisting of the elements of a Galois field... |
| US-4,498,174 |
Parallel cyclic redundancy checking circuit A parallel cyclic redundancy checking circuit which determines the validity of digital, binary, cyclical data. The parallel structure of this circuit enables it... |
| US-4,498,173 |
Technique for digital split-channel transmission using interpolative
coders and decoders The present invention relates to a technique using interpolative coders and decoders to permit an analog input message signal to be sampled at the Nyquist rate,... |
| US-4,498,172 |
System for polynomial division self-testing of digital networks A built-in test system employs dual-mode feedback shift registers to supply test vectors and evaluate test responses of functional and interface networks of a... |
| US-4,498,171 |
Tone source for telephone systems A tone source is automatically adaptable in operation to generate tones as required for virtually any TDM telephone system in accordance with stored tone samples... |
| US-4,498,170 |
Time divided digital signal transmission system A time divided digital signal transmission system includes a transmitter for converting plural analog signals to digit signals, generating multiplexed time... |
| US-4,498,169 |
Multiaccess broadcast communication system A time division multiple access communication system utilizing a transmission medium, such as the broadband cable of a CATV system having a retransmission... |
| US-4,498,168 |
Communication network and method for its use A local communication network for interconnecting data transmitting and receiving stations, such as computers. A number of stations are connected for... |
| US-4,498,167 |
TDM Communication system A time division multiplex digital data communication system with reduced band width. The system operates on independent digital signals so they can be... |
| US-4,498,166 |
Multiplexer and demultiplexer circuits for analog signals There is disclosed a multiplex system for combining a plurality of analog or other type input signals at a transmitter site to provide a composite signal for... |
| US-4,498,165 |
Apparatus for the centered mounting and unmounting on a device spindle A magnetic or optical disk load/unload device for automatically centering and clamping a disk to the spindle of an information storage device. The apparatus is... |
| US-4,498,164 |
Record players A children's record player which can be in the shape of a toy vehicle designed to be placed on top of a gramophone record and drive around and over that record.... |
| US-4,498,163 |
Diamond pickup stylus with good grindability An electrostatic capacitance type pickup stylus for use on an information storage disc comprises a crystal of diamond including a sliding face for slidable... |
| US-4,498,162 |
Automatic disc loading apparatus A disc player apparatus having mechanism for guiding and centering disc records of different size on a disc record drive having a vertical spindle. A horizontal... |
| US-4,498,161 |
Disc player The invention relates to a disc player for a rigid information-carrying disc, which player comprises a turntable which is mounted for rotation on a chassis. The... |
| US-4,498,160 |
Simplified record player capable of automatically housing reproducing
stylus upon removal of record disc from... A simplified record player having a fixed record member and a rotatable turn table carrying a sound reproducing stylus which rotates together with the turn... |
| US-4,498,159 |
Track deviation detecting apparatus A track deviation detecting apparatus for detecting a deviation of a recording light spot (A) from a track (15) on a recording medium (7) comprises two... |
| US-4,498,158 |
Address data searching method for data recording medium reproducing
device A method and apparatus for operating a data recording medium reproducing device in which a pick-up device reads address data from a recording medium such as a... |
| US-4,498,157 |
Method of determining weathering corrections in seismic operations In a seismic recording and processing system in which a line of sources and a separate line of receivers are provided and each of the source operations from each... |
| US-4,498,156 |
Electrochromic nonvolatile memory device Apparatus for storing and retrieving data, comprising a plurality of electrochromic cells having electrically controllable illumination transparency, a voltage... |
| US-4,498,155 |
Semiconductor integrated circuit memory device with both serial and
random access arrays A semiconductor memory device of the single-chip MOS/LSI integrated circuit type has both serial access and random access means on the same chip. When the device... |
| US-4,498,154 |
Monolithically integrated semiconductor memory Monolithically integrated semiconductor memory with a matrix of identical storage cells arranged rows and columns in the form of a coordinated MOS field-effect... |
| US-4,498,153 |
Output signal detectors of magnetic bubble memory devices In a detector of an magnetic bubble memory device of the type comprising a magnetic bubble memory element having a detector, a source of constant current for... |
| US-4,498,152 |
Cassette type magnetic bubble memory device In a cassette type magnetic bubble memory device comprising: a magnetic bubble memory device mounted to a base plate and having a magnetic bubble memory element,... |
| US-4,498,151 |
On board non-volatile memory programming A digital system is disclosed for programming a non-volatile memory, such as a programmable read only memory (PROM), while it is in situ in the operating system... |
| US-4,498,150 |
Document automatic pagination The specification discloses a method for automatically paginating a data stream in a word processing system. A vertical tracking register is incremented by a... |
| US-4,498,149 |
Symbol input device for use in electronic translator An input circuit adapted to be connected to an electronic translator is disclosed. The input circuit comprises an alphabetical keyboard for inputting key code... |
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