Patents

Searching:





Search by keyword, patent number, inventor, assignee, city or state:




Patent # Description
US-5,410,552 Method and apparatus for generating test sequence
Disclosed is a method and apparatus for generating a test sequence to test a fault in a digital circuit. According to this method and apparatus, when a fault...
US-5,410,551 Net verification method and apparatus
To verify proper interconnection of an interconnect network, a transitory test signal is introduced at a first node of a network within a system under test. A...
US-5,410,550 Asynchronous latch circuit and register
An asynchronous latch circuit characterized by a pair of D-type flip-flops and a D-type latch. Data is clocked into a first flip-flop by a system clock signal...
US-5,410,549 Logic simulator
There is disclosed a logic simulator including a logic circuit verifying portion (3) that records in a floating information storage portion (4) generation and...
US-5,410,548 Test pattern fault equivalence
A method for determining test pattern fault equivalence. The method comprises selecting a bridging fault (16) from a digital circuit, then determining a stuck-at...
US-5,410,547 Video controller IC with built-in test circuit and method of testing
A video controller integrated circuit is provided with an on-chip test data generator within the integrated circuit for emulating an external memory for testing...
US-5,410,546 Apparatus and method for CRC computation over fixed length blocks containing variable length packets of data...
The present invention discloses a method and apparatus for computing CRC codes for fixed length page buffers of user data where the user data arrives from a...
US-5,410,545 Long-term storage of controller performance
A memory controller having a non-volatile memory is disclosed herein. The memory controller forms part of a computer system that includes a program for accessing...
US-5,410,544 External tester control for flash memory
An apparatus for testing a unit comprising an internal processor coupled to a register by an internal bus. The internal processor is programmed so that it can...
US-5,410,543 Method for connecting a mobile computer to a computer network by using an address server
This invention provides a method for connecting a mobile computer to a computer network by using an address server. The mobile computer connects itself to a...
US-5,410,542 Signal computing bus
A signal computing bus (SCbus) includes two bus structures: (a) a synchronous TDM data transport referred to as a data bus and (b) a serial message passing bus...
US-5,410,541 System for simultaneous analog and digital communications over an analog channel
At a transmitting end, frequencies used to a construct a digital signal are substantially removed from an analog signal by a notch filter circuit to produce an...
US-5,410,540 Shared-buffer-type ATM switch having copy function and copy method thereof
In a shared-buffer-type ATM switch including a multiplexer, a shared buffer memory, a demultiplexer, a buffer memory controller, a cell copy section is disposed...
US-5,410,539 Communication apparatus and method
A PBX incorporates a table for storing information indicating whether a calling mode of each extension terminal designates an extension or a trunk. Upon...
US-5,410,538 Method and apparatus for transmitting signals in a multi-tone code division multiple access communication system
A method of transmitting signals from a mobile unit to a base station in the reverse link direction using multi-tone techniques includes the step of dividing a...
US-5,410,537 Communications installation
A number of peripheral controllers are connected to a PCM highway used exclusively for switching through signalling and packet data. Each controller has a...
US-5,410,536 Method of error recovery in a data communication system
Described is a method of error recovery in a data communication system of the kind comprising two nodes connected by a serial link and wherein data is...
US-5,410,535 Automatic selection of an interface for ethernet stations
Method and apparatus for automatically switching an Ethernet station interface to choose between two protocols and, possibly, two external connector...
US-5,410,534 Optical information recording medium
In an optical recording medium having concave and convex type signal pits formed on a substrate surface, a reflection layer is formed on the signal pits in such...
US-5,410,533 Vibration proofing mechanism
A vibration proofing mechanism whose springs are not required to be newly extended when the mounting position of an apparatus using the mechanism is changed. Two...
US-5,410,532 Method for a adjusting a beam splitter in an optical recording and reproducing apparatus
A method of adjusting a beam splitter of an optical information recording/reproducing apparatus is provided. The optical information recording/reproducing...
US-5,410,531 Noise reduction in a multiplex recorded optical information system
A method of reproducing information recorded on an optical recording medium includes the steps of directing a first reading optical beam and a second reading...
US-5,410,530 Multiple data surface optical data storage system
An optical data storage system comprises a multiple data surface medium and optical head. The medium comprises a plurality of substrates separated by a light...
US-5,410,529 Optical pickup apparatus
An optical pickup apparatus for reading out information from an optical disk. The optical pickup includes a light source; and an optical device having a grating...
US-5,410,528 Servo tracking circuit of an optically writable/readable/erasable disk
An optical disk apparatus which is servo-controlled to trace a track according to a servo signal wherein the track is optically and selectively writable,...
US-5,410,527 Information recording/reproducing apparatus including setting optimum recording condition or reproducing condition
An information recording and reproducing apparatus includes: a recording device to record information to a recording medium such as a magnetooptic disc, optical...
US-5,410,526 Disc reproducing apparatus and disc recording apparatus
A disc reproducing apparatus for reproducing voice data recorded on an optical disc by successive predetermined amounts and recording the reproduced data...
US-5,410,525 Disk reproducing method and apparatus including track jump compensation
A disk reproducing apparatus enables selection and reproduction of the desired programs recorded on a disk, with reduced memory capacity. When a desired program...
US-5,410,524 Recording medium apparatus for inhibiting playback of predetermined recorded portions
In a recording medium playing apparatus, information on the medium (which is not reproduced when the medium is operated in a special playback mode) can not be...
US-5,410,523 Optical pickup driving apparatus
An optical pickup driving apparatus including an optical pickup device for reading data recorded on the data recording surface of an optical disc recording...
US-5,410,522 Information recording/reproducing apparatus for recording information in accordance with mark interval or mark...
An apparatus, having a spindle motor for rotating a circular optical disk, for recording information on the optical disk rotated by the spindle motor, and...
US-5,410,521 Method and apparatus for recording information on a medium having biaxial magnetic anisotropy using parallel...
A method of information recording on a magnetic recording medium by applying a first magnetic field to the medium in a direction perpendicular to the surface of...
US-5,410,520 Spatial/digital timepiece
A timepiece combines benefits of analog and digital displays in a format that is both easy to read and precise. The face of the timepiece includes a plurality of...
US-5,410,519 Acoustic tracking system
An acoustic tracking system designed to allow scientists and fishermen to follow dolphins and whales without harming or harassing them. The system utilizes six...
US-5,410,518 Ultrasonic transducer assembly for measuring liquid level
A transducer assembly for an ultrasonic liquid level measuring device utilizing a piezoelectric crystal for generating ultrasonic pulses to be transmitted...
US-5,410,517 Method for cascading sweeps for a seismic vibrator
A method for cascading or linking seismic vibrator sweeps to form a cascaded sweep sequence. According to the method, a first cascaded sweep sequence is...
US-5,410,516 Ultrasonic processes and circuits for performing them
A process for selective graphic representation and/or evaluation of the Doppler spectrum of objects limitedly resistant to sonic intensity, for example...
US-5,410,515 Rapid turn-on source for fiber optic gyroscope
A light source with wavelength compensation for a fiber optic rotation sensor includes a light source to provide light for input to the fiber optic rotation...
US-5,410,514 Single clock memory having a page mode
The present invention realizes page mode memory access in a single clock memory. A control signal PAGE, one level of which designates an ordinary mode and the...
US-5,410,513 Address pointer generating and using a coincidence signal in a semiconductor memory device and method of...
A counter counts clock signals. When a count thereof coincides with the number of rows or columns in a memory cell array, a row or column count coincidence...
US-5,410,512 Semiconductor memory device
A semiconductor memory device includes a silicon chip and sub-arrays formed in the chip. In each of the sub-arrays, memory cells arranged in a matrix form, word...
US-5,410,511 Methods of controlling the erasing and writing of information in flash memory
In a flash memory, the value of an erasing voltage pulse is temporarily set so that information stored in all the memory cells is erased by means of the erasing...
US-5,410,510 Process of making and a DRAM standby charge pump with oscillator having fuse selectable frequencies
An oscillator (108) for a standby charge pump (102,104)in a dynamic random access memory part (30) includes a fuse (136). The fuse can be blown after testing the...
US-5,410,509 Dynamic type semiconductor memory device with dummy cells capable of accurately reading information from memory...
A dynamic type semiconductor memory device comprises a semiconductor substrate including a memory cell array, the memory cell array including two kinds of main...
US-5,410,508 Pumped wordlines
The invention is a circuit and method for maintaining a negative potential, with respect to the digit line potential, on non-selected wordlines.
US-5,410,507 Special mode control method for dynamic random access memory
A dynamic RAM provided with a data retention mode intended for low power consumption is provided. In the data retention mode, the current supply capabilities of...
US-5,410,506 Memory integrated circuit with protection against disturbances
Disclosed is an integrated circuit memory comprising at least one column of memory cells parallel connected with one another and connected to at least one bit...
US-5,410,505 Semiconductor memory device having a memory cell unit including a plurality of transistors connected in series
A semiconductor memory device comprising a memory cell array having a plurality of dynamic memory cells, each of the memory cells including a plurality of MOS...
US-5,410,504 Memory based on arrays of capacitors
A memory constructed from a plurality of capacitor elements organized into a two-dimensional array having a plurality of rows and columns. Each capacitor element...
US-5,410,503 Semiconductor memory device having memory cells including transistors and capacitors
A semiconductor memory device having memory cells including a transistor and a trench type capacitor which are formed on a semiconductor substrate to cooperate...
← Previous | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | Next →