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| Patent # | Description |
|---|---|
| US-4,679,202 |
Gas laser tube apparatus A gas laser tube has a beryllium inner tube (10) with a precision ground bore aligned on the axis between the anode (20) and the cathode (18) by supporting said... |
| US-4,679,201 |
Folded CO.sub.2 laser A folded longitudinal flow CO.sub.2 laser with an output of at least several hundred Watts, having a rectilinear tube device of dielectric material containing... |
| US-4,679,200 |
Semiconductor laser A semiconductor laser includes a current blocking layer formed on a substrate, a first cladding layer formed on the current blocking layer, an active layer... |
| US-4,679,199 |
High power InGaAsP/InP semiconductor laser with low-doped active layer
and very low series resistance In conventional InGaAsP/InP semiconductor lasers the p-doping in the InP laser level cannot be increased above 1.times.10.sup.18 atoms/cm.sup.3 without adversely... |
| US-4,679,198 |
Solid-state tunable laser Li.sub.4 Ge.sub.5 O.sub.12 activated by a closed shell ion such as Ti.sup.+4 or Sn.sup.+4 as the active medium for a solid state laser that emits in the... |
| US-4,679,197 |
Gyro free electron laser A source of coherent radiation. The source includes an evacuated drift tube having an input end for receiving a beam of relativistic electrons and an output end... |
| US-4,679,196 |
Semiconductor memory device with a bit error detecting function A memory matrix array consists of a plurality of memory cells with addresses expressed by a plurality of bits. The parity bit for the data stored in all of the... |
| US-4,679,195 |
Error tracking apparatus in a data processing system Disclosed is an error tracking apparatus for a data processing system having a plurality of data locations. At each data location at which an error is to be... |
| US-4,679,194 |
Load double test instruction In a data processor having an instruction which requires the loading of the contents of two (2) successive locations in the address space during respective bus... |
| US-4,679,193 |
Runt packet filter Provided is a circuit for preventing local area network packets shorter than a predetermined bit length from being received by a local area network coprocessor.... |
| US-4,679,192 |
Arrangement for transmitting digital data For the orderly transmission of digital data between stations S.sub.1 -S.sub.n connected to a common communication path B, it is useful to provide an access and... |
| US-4,679,191 |
Variable bandwidth switching system The present invention provides a communications system that improves upon the availability of communications paths between devices and simplifies the... |
| US-4,679,190 |
Distributed voice-data switching on multi-stage interconnection networks A method of switching synchronous and asynchronous data packets through a multi-stage interconnection network (MIN), so as to insure that packets with the... |
| US-4,679,189 |
Alternate routing arrangement Improved alternate routing in a packet switching system is provided by inserting alternate routing control information into each packet and by storing alternate... |
| US-4,679,188 |
Digital transmission system A digital transmission system comprising at least two transmitting-receiving (T/R) units and a single transmission line connected therebetween. One of the T/R... |
| US-4,679,187 |
Adaptive trunk-compression system with constant grade of service A dynamic trunk compression system for processing digitized speech signals. The system includes a monitoring apparatus which measure current traffic intensity at... |
| US-4,679,186 |
Alternate self-routing packet switching node having fault detection
capabilities A self-routing switching network interconnecting a plurality of interface controllers for communicating packets and circuit switched information via multiple... |
| US-4,679,185 |
Pivotal-arm device for a disc scanning unit A pivotal-arm device (15) for a disc scanning unit (13) for recording and/or reading information comprises a deck plate (3A), a pivotal arm (25) carrying the... |
| US-4,679,184 |
Optical recording and reproducing apparatus having erasing beam spot
with asymmetrical intensity distribution Disclosed is an optical recording and reproducing apparatus having an erasing function. The invention aims at providing a practical apparatus which can effect... |
| US-4,679,183 |
Sound recording apparatus for blank films and tapes An apparatus and method for reproducing sound recordings on blank films and tapes of plastic materials in which a continuous master film carrying sinuous lines... |
| US-4,679,182 |
Disc playback device A disc playback device comprises a loading device for transferring a disc or a case housing a disc between an eject position in which the disc or the disc case... |
| US-4,679,181 |
Method for detecting an error in loading a recording disc A disc drive control system for controlling the drive of a disc carrying a binary digital signal incluring a clock information of a predetermined frequency... |
| US-4,679,180 |
Process for direct over-writing of digital data recorded on
magneto-optical recording media Methods for directly over-writing the binary data value of a bit of digital data, stored in a particular one of a multiplicity of microscopic storage regions of... |
| US-4,679,179 |
Sonar detection apparatus Polymer compositions comprising a segmented urethane block polymer and an elastomer having a glass transition temperature between -40.degree. and +15.degree. C.... |
| US-4,679,178 |
Arrangement in hydrophone An arrangement in a piezoelectric hydrophone that is provided with a protective outer housing enveloping a waterproof closed casing (2). Said casing is provided... |
| US-4,679,177 |
Underwater communication system An underwater communication system of the present invention comprises a transmitter including message inputting means having keys, each being assigned to each... |
| US-4,679,176 |
Ultrasonic receiving apparatus In an ultrasonic imaging apparatus, when a sampling time space determined corresponding to the respective phases of receiving signals from transducer elements... |
| US-4,679,175 |
Ultrasonic distance sensor with dual burst noise rejection An ultrasonic distance sensing method and apparatus are disclosed in which a transducer periodically transmits a pair of bursts of acoustic energy along an... |
| US-4,679,174 |
Method for seismic lithologic modeling A method of seismic exploration of the subsurface of the earth. Seismic reflection data are gathered in a selected area. The seismic data are combined with... |
| US-4,679,173 |
Sequential access LSI memory circuit for pattern generator In an LSI memory of the invention, in order to decrease the number of input address lines, an address counter having a bit length corresponding to some input... |
| US-4,679,172 |
Dynamic memory with increased data retention time A dynamic memory obtains reduced leakage currents through the access transistors by preventing the low-going column conductors from reaching zero volts for at... |
| US-4,679,171 |
MOS/CMOS memory cell A memory array of four-IGFET-transistor cells arranged in rows and columns. The array uses two patterned metal layers and two patterned poly-silicon layers. For... |
| US-4,679,170 |
Resistor with low thermal activation energy An improved process in making a polysilicon resistor suitable for use as a load resistor in a static memory wherein after the doping of the polysilicon, the... |
| US-4,679,169 |
Printer hammer resetting control system A microprocessor provides to a main instruction source, A FIFO memory, various instructions (paper feed, hammer settings, . . . ) for a printer represented by... |
| US-4,679,168 |
Intelligent broad band digital RF memory This invention describes a system for digitally storing high-frequency signals with the ability to retrieve and transmit these stored signals repetitively or... |
| US-4,679,167 |
Apparatus for locating a memory module within a memory space The individual RAMs comprising the memory space of a computer are automatically located within a memory space during initialization and address enable... |
| US-4,679,166 |
Co-processor combination A dual processor system in which one processor is dedicated to input/output tasks while the other is dedicated to high level language tasks when operating as a... |
| US-4,679,165 |
Multiplication unit and method for the operation thereof A multiplication unit for n-place binary numbers has a first register containing the multiplicand, and accumulator, and an arithmetic unit having operand inputs... |
| US-4,679,164 |
Digital high speed programmable convolver A circuit module rapidly calculates a discrete numerical convolution. A convolution such as finding the sum of the products of a 16 bit constant and a 16 bit... |
| US-4,679,163 |
Inverse discrete cosine transform calculation processor An inverse discrete cosine transform calculation processor, for processing television picture signals, comprises a processor module consisting of four successive... |
| US-4,679,162 |
Wide dynamic range linear to log converter with microcomputer control The effective range of an analog linear-log converter is extended above the number of output decades over which this converter is reasonably linear to cover... |
| US-4,679,161 |
Calibrated overlapping frequency sweep An overlapping frequency sweep system (10) includes a complex multiplier (15) located between two reflective array compressors (RACs 13 and 21). The complex... |
| US-4,679,160 |
Ultrasonic depth measurement apparatus and methods Apparatus for determining the depth of precipitation accumulating on the surface of a pathway, such as an airport runway or the like, includes a sensor having... |
| US-4,679,159 |
Automatic adjustment method of tracer head Manual zero adjustment of a tracer head and adjustment of differential amplifiers for the tracer head are eliminated by a step of storing the outputs of... |
| US-4,679,158 |
Automatic mirror rotating system A mirror positioning system (230) for a towed and a towing vehicle (102, 32) has a mirror (34) pivotally mounted on a support (36) for movement about a vertical... |
| US-4,679,157 |
Temperature measuring apparatus A temperature measuring apparatus utilizing the temperature dependence of the characteristics of fluorescence and afterglow emitted from a fluorescent substance... |
| US-4,679,156 |
Microprocessor-controlled fire sensor A fire sensor that can perform a sophisticated analysis of the outputs of radiant energy detectors, while minimizing size, weight, and cost, by employing a... |
| US-4,679,155 |
Method and system for processing image data in reproducing images The method and system of this invention is capable of obtaining image data which underwent a layout process such as coordinate rotation and shifting processes, a... |
| US-4,679,154 |
Scanning control system for merchandise checkout A checkout system for processing purchased merchandise items includes a checkout counter in which is located a scanning assembly for scanning a coded label on... |
| US-4,679,153 |
Printing systems for typesetter emulation A printing system and method is disclosed herein which is capable of emulating any of a plurality of phototypesetters to create a proof comprising at least one... |
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