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| Patent # | Description |
|---|---|
| US-4,841,524 |
Digital data multiple conversion system for converting data having a
frequency to data having another frequency... A digital data multiple conversion system which can be used in a digital data communication network and recover lost clock pulses. The system includes a memory... |
| US-4,841,523 |
Method of accessing local area networks with a unidirectional
ring-transmission line, and local area network... A method of accessing a local-area network which allows transmission on a unidirectional ring, of circuit-switched or packet-switched communications organized in... |
| US-4,841,522 |
Time division channel switching circuit A time division channel switching circuit is disclosed, in which time switches and selectors are provided, channel information is written into the time switches... |
| US-4,841,521 |
Method and system for bidirectionally transmitting data A method and a system for bidirectional transmission/reception of data between two terminal stations, in which each transmission period is divided into a... |
| US-4,841,520 |
Data transmission system with bus failure detection system A multiplex system includes a bus, a central controller coupled to the bus, and a number of remote stations coupled to the bus. The central controller applies... |
| US-4,841,519 |
Apparatus for discriminating an optical signal from others and an
apparatus for tuning an optical wavelength... An apparatus for discriminating an optical signal from others comprises a circuit for adding one of discriminating signals to a corresponding optical signal. The... |
| US-4,841,518 |
Clamping mechanism for information recording disk A clamp mechanism for clamping an information recording disk such as a compact disk or a video disk to a turntable and which provides a strong and reliable... |
| US-4,841,517 |
Disk clamping device A disk clamping device for clamping either one of a disk having a small center hole, such as a compact disk, and a disk having a larger center hole, such as a... |
| US-4,841,516 |
Turntable for mounting recording medium in disk form A turntable comprising a disk-shaped substrate and a portion for receiving a disk-shaped recording medium is disclosed. The disk-shaped substrate is shaped from... |
| US-4,841,515 |
Read-write optical disk A read-write optical disk with method of manufacture and configuration of writing mechanism. The optical disk is fully configured at every readable location with... |
| US-4,841,514 |
Optical recording method and apparatus using two fight spots A light spot determining a first condition that an optical recording medium is cooled after being heated to a temperature exceeding a first temperature and a... |
| US-4,841,513 |
Sequential buffer device A sequential buffer device for connection to a serially readable memory. The device has an input for serially receiving successive data frames, which frames... |
| US-4,841,512 |
Optical disk apparatus with an erase checking function An optical disk apparatus is disclosed in which data is recorded, reproduced and erased on an erasable optical disk. After first data is recorded in a... |
| US-4,841,511 |
Constant linear velocity disk rotating apparatus A constant linear velocity disk rotating apparatus for rotating a disk storing data recorded therein substantially at fixed linear recording speed detects a... |
| US-4,841,510 |
Optical characteristic measuring apparatus for an optical recording
medium substrate A structure of an optical pickup. The optical pickup has a substrate used for an optical recording medium. The optical pickup is provided with a device for... |
| US-4,841,509 |
Apparatus and method for detecting focus error signal and tracking error
signal in an optical disk system An apparatus and method for identifying focus and tracking errors in an optical disk apparatus is provided. Reflections from the disk are generated using a... |
| US-4,841,508 |
Method and apparatus for detecting a track and focus errors in an
optical head A method and apparatus for detecting a track and focus errors in an optical head comprises a step of dividing light beam which is reflected from a recording... |
| US-4,841,507 |
Optical head for an optical recording and reproducing apparatus An optical head for optical recording and reproducing system comprising a light source, a first optical means for introducing a light beam from the light source... |
| US-4,841,506 |
Random playing method for disk player The invention provides an improved playing method for a CD (compact disk) player whereby the same selection is inhibited from being played twice in a row. Also,... |
| US-4,841,505 |
Pickup position control method enabling restart of reproduction after
interruption In a method and apparatus of controlling the position of the pickup of a disk player, when the power supply is interrupted during reproduction, data recorded on... |
| US-4,841,504 |
Method and apparatus for recording an information signal on a rotary
recording medium A method and apparatus for assembling an information signal on a rotary recording medium comprising a pre-recorded track recorded with pre-recorded information... |
| US-4,841,503 |
System for recording information from one recording medium onto a
reversing cassette tape recording medium... The present invention intends to record the information which was divisionally recorded on a disk onto a recording medium without a loss of information. The... |
| US-4,841,502 |
Information recording system and reproducing for recording and
reproducing information on a magneto-optical disk An information recording and reproducing system for a magneto-optical disk having first and second optical systems each including at least first and second... |
| US-4,841,501 |
Plastic substrate for optical disk and process for producing the same A recording medium for optical high-density data storage and retrieval, comprising a flat transparent plastic substrate characterized by the following... |
| US-4,841,500 |
Printed circuit board fabrication technique The fabrication of a printed circuit board (26) usually includes the step of testing the board with a testing machine (24) to verify operability. The testing... |
| US-4,841,499 |
Multi-disc player A carriage supporting apparatus in a disc player is disclosed which comprises a carriage plate; a holder for supporting the carriage plate; a first damper... |
| US-4,841,498 |
Information recording/reproducing apparatus with means for substituting
predetermined good sectors for... An information recording and reproducing apparatus for recording information on the recording medium and reproducing the information from the recording medium... |
| US-4,841,497 |
Digital time base with corrected analog interpolation A digital time base with analog interpolation provides a variable reference voltage to assure that the period of an analog ramp between a zero value and a... |
| US-4,841,496 |
Appliance timer An appliance timer includes a motor driven cam carried in a housing. A switch blade carried in the housing is responsive to the cam to selectively activate one... |
| US-4,841,495 |
Horn loaded transducer for acoustic levitation A sound source coupled to an acoustic levitation chamber is provided with horn loading to improve efficiency and to protect the sound source from heat. A dish... |
| US-4,841,494 |
Underwater piezoelectric arrangement Underwater piezoelectric arrangement in which it comprises two piezoelectric elements made of piezoelectric ceramic-polymer composites and juxtaposed to form a... |
| US-4,841,493 |
Electronic acoustic signal emitter An electronic acoustic signal emitter which includes a piezo-ceramic plate on a metal membrane, and with a circuit board which supports the electronic... |
| US-4,841,492 |
Apodization of ultrasound transmission An apodization attenuation circuit to achieve a selected percent Gaussian apodization of a focused ultrasound wavefront when transmitted from a linear or phased... |
| US-4,841,491 |
Ultrasonic beam former In an ultrasonic beam former for phasing and adding received signals supplied from respective elements of an ultrasonic transducer array and for producing the... |
| US-4,841,490 |
Inversion of a vertical seismic profile by minimization of an entropy
like function The present invention is directed to a method of inverting seismic traces Sk by determining the series R={r.sub.i } representative of the seismic reflection... |
| US-4,841,489 |
Method of imaging an object by ultrasonic or electromagnetic waves A method of imaging an object by the ultrasonic or electromagnetic wave by mechanically or electronically scanning the ultrasonic or electromagnetic wave... |
| US-4,841,488 |
Semiconductor memory circuit with improved timing and delay control for
data read out A memory circuit which can be reset to an inactive stand-by mode rapidly as soon as a chip select signal is changed to an inactive level, is disclosed. The... |
| US-4,841,487 |
Semiconductor memory device with address generator For improvement in operation speed, there is disclosed a semiconductor memory device comprising a memory cell array associated by a addressing circuit for... |
| US-4,841,486 |
Semiconductor memory device and sense amplifier A semiconductor memory device having a memory plane defined by a plurality of memory cells, a decoder line for accessing the memory cells, a common data line on... |
| US-4,841,485 |
Read/write memory device with an embedded read-only pattern and method
for providing same A memory array device with an embedded self-test binary pattern. The device has an array of bistable cells formed with first and second sides that are oppositely... |
| US-4,841,484 |
Tri-state IIL gate A semiconductor integrated circuit device comprising a logic circuit which is constituted by using tri-state IIL gates. The tri-state IIL gates are particularly... |
| US-4,841,483 |
Semiconductor memory The invention provides a semiconductor memory having a plurality of memory cells and a bit line connected to the memory cells comprising, the bit line being... |
| US-4,841,482 |
Leakage verification for flash EPROM A circuit and method for verifying leakage in a flash EPROM/EEPROM memory cell which is fabricated on a silicon substrate having floating gate. A word line... |
| US-4,841,481 |
Semiconductor memory device An SRAM including a memory cell having a high-resistance load element. The load element is formed from a polysilicon film, and an impurity is introduced into a... |
| US-4,841,480 |
Cross-tie memory system Double complementary storage is provided for a single binary digit in a quad store cross-tie memory. A correlated double sampling signal processing system is... |
| US-4,841,479 |
Method for preparing a simulation program A method for automatically generating by use of a computer a simulation program for simulating a phenomenon in a region by discretizing automatically data of a... |
| US-4,841,478 |
Document processor A document processor comprising a memory for storing a document input by a keyboard and a display for displaying the document in the memory and a sign indicative... |
| US-4,841,477 |
Response/processing apparatus for external-abnormal-state in data
processing system The invention is in a data processing system comprising a data processing device and a data control device, and external abnormal signals inputted through the... |
| US-4,841,476 |
Extended floating point operations supporting emulation of source
instruction execution In a system which emulates execution of source CPU instructions and includes a translating unit (translator) for converting source instructions to target... |
| US-4,841,475 |
Data transfer system and method for channels with serial transfer line An apparatus for transferring data between a memory and an input/output device via a serial data transfer line including a central channel unit for sending to... |
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