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Patent # Description
US-5,689,474 Digital frequency synthesizer
There is disclosed a digital frequency synthesizer which converts an ultrnic burst from an echo-ranging sonar system into a continuous signal having a frequency...
US-5,689,473 Multi-bank synchronous memory system with cascade-type memory cell structure
A synchronous memory system with a cascade-type memory cell structure has memory cells having a cascade type construction (or NAND type configuration), a row...
US-5,689,472 System and method for providing efficient access to a memory bank
Apparatus, method, and system aspects for providing efficient accesses to memory in a computer system, the computer system including a controller, are described....
US-5,689,471 Dummy cell for providing a reference voltage in a memory array
A dummy cell in a memory array. The memory array includes a storage element for storing one of a first and a second state. The storage element is coupled to...
US-5,689,470 Semiconductor memory device and method for accessing a memory in the same
A semiconductor memory device includes a plurality of memory cells arranged in a matrix, each of which has a gate electrode, a first electrode and a second...
US-5,689,469 Semiconductor memory devices
Precharge circuits precharge plural pairs of bit lines to a specified potential when no word line is selected (during standby). Pull-down transistors are turned...
US-5,689,468 Semiconductor memory device and method for driving the same
A semiconductor memory device includes at least one memory block comprising: a plurality of word lines; a plurality of bit lines; and a plurality of memory cells...
US-5,689,467 Apparatus and method for reducing test time of the data retention parameter in a dynamic random access memory
In a dynamic random access memory device, the time required for implementation of memory cell data retention time testing procedures can be reduced by changing...
US-5,689,466 Built in self test (BIST) for multiple RAMs
Multiple embedded RAMs are tested, one at a time, for stuck at faults, including multibit faults. Parity for the RAMs is also tested and tests are performed for...
US-5,689,465 Semiconductor memory device and defective memory cell correction circuit
To provide a semiconductor memory device characterized by the fact that it can prevent errors in the redundant memory address coincidence signal generating...
US-5,689,464 Column repair circuit for integrated circuits
A column repair circuit for a semiconductor memory having an input/output selection circuit for inputting a control signal, selecting a bit line and a bit bar...
US-5,689,463 Semiconductor memory device
A NAND type EEPROM includes block selecting circuits (BSC1 to BSC6) configured to keep a defective block non-selected in the mode for simultaneous writing and...
US-5,689,462 Parallel output buffers in memory circuits
A memory circuit with programmable memory array organization and number of data output terminals, capable of connecting unused output buffers in parallel in...
US-5,689,461 Semiconductor memory device having voltage booster circuit coupled to a bit line charging/equalizing circuit or...
An equalizing circuit is connected between a pair of bit lines. The equalizing circuit is made up of three MOS transistors and an equalization control signal is...
US-5,689,460 Semiconductor memory device with a voltage down converter stably generating an internal down-converted voltage
A comparison circuit compares a reference voltage Vref from a reference voltage generation circuit with an internal power supply voltage VCI on an internal power...
US-5,689,459 Low voltage one transistor flash EEPROM cell using Fowler-Nordheim programming and erase
A single transistor electrically erasable programmable memory device capable of being programmed and erased using Fowler-Nordheim tunneling and capable of being...
US-5,689,458 Semiconductor memory device having negative resistance element operated stably with single low power source
A memory cell of an SRAM includes an access transistor, and an MIS switching diode. The access transistor has a drain electrode connected to a bit line of a...
US-5,689,457 Semiconductor Memory
A dynamic RAM integrated circuit of the one-element memory cell type is provided with a plurality of data lines, a sense amplifier, a plurality of word lines...
US-5,689,456 Semiconductor non-volatile ferroelectric memory transistor accompanied with capacitor for increasing potential...
A semiconductor non-volatile ferroelectric memory transistor has a lower paraelectric capacitor for creating a conductive channel between a source region and a...
US-5,689,455 Circuit for programming antifuse bits
Circuitry for programming antifuse elements is provided which permits all antifuse elements in a bank to be programmed simultaneously, thereby enhancing the...
US-5,689,454 Circuitry and methodology for pulse capture
Circuitry and methodology for pulse capture employs S-R latch, precharge, and switch circuitries for quickly sensing and capturing a logic pulse from dynamic...
US-5,689,453 Data storing apparatus having a memory capable of storing analog data
A D/A converter converts input "n" bit digital data into discrete analog data by assigning each of the voltage values V.sub.0 -V.sub.2.spsb.n.sub.-1 to each "n"...
US-5,689,452 Method and apparatus for performing arithmetic in large galois field GF(2.sup.n)
A method and apparatus for decoding Reed-Solomon codes in large Galois Fields GF(2.sup.n) represents the finite field as a quadratic extension field of one or...
US-5,689,451 Device for calculating parity bits associated with a sum of two numbers
In an adder that finds the sum of two binary numbers A and B, it is now conventional to associate one or more parity bits (PA, PB, PS) with each of the two...
US-5,689,450 Parallel processor
A parallel processor for processing a plurality of pieces of data includes a number of unitary processing units provided in parallel equal to the number of...
US-5,689,449 Decimation filter
The invention relates to a decimation filter comprising a direct cascade arrangement of digital first order and second order integration and derivation stages...
US-5,689,447 Temperature-compensated, self-calibrating, contact-type gaging system and method for calibrating the same
A temperature-compensated, self-calibrating, contact-type gaging system and method for calibrating the same. The system is configured to run in a calibration...
US-5,689,446 Foot contour digitizer
Apparatus for determining a contour of the underside of a person's foot includes an array of gauge pins supported by a first support structure and disposed in...
US-5,689,445 Electronic compass and attitude sensing system
An electronic heading and attitude sensing subsystem which is fully integrated with the existing hardware of an acoustic Doppler current profiler (ADCP)...
US-5,689,444 Statistical quality control of wind profiler data
The quality of wind profiling radar data is evaluated by comparing the probability density function of the power density of sets of returned samples to an...
US-5,689,443 Method and apparatus for evaluating scanners
The apparatus and method for evaluating images for quality assurance parameters of ultrasound image scanners are described. The apparatus includes a digital...
US-5,689,442 Event surveillance system
A surveillance system operable to capture images and sounds concerning events for storage in a random access data store. A data management functionality is...
US-5,689,441 Signal processing techniques based upon optical devices
A signal processing system processes an input signal in real time. The system includes a light valve array for selectively attenuating light incident thereupon...
US-5,689,440 Voice compression method and apparatus in a communication system
The present invention comprises a method for compressing a plurality of voice signals within a voice communication resource (see FIG. 6) having a given bandwidth...
US-5,689,439 Switched antenna diversity transmission method and system
The present invention is an improved switched antenna diversity transmission system for use with an ARQ error protection protocol. The transmitter of the present...
US-5,689,438 Audio bit stream generator for high definition television utilizing personal computer, and control method therefor
An audio bit stream generator for an HDTV utilizing a PC, including: a hard disc for storing an HDTV audio data encoded and prepared through computer ...
US-5,689,437 Video display method and apparatus
In a video display method of laying out a plurality of objects in a space, and creating images of the objects in units of frames, thereby displaying a series of...
US-5,689,436 Apparatus for compressing and decompressing video signal
While a image is displayed on a color monitor 44 based on a first digital video signal DRGB1 output from a first A-D converter 52, a second digital video signal...
US-5,689,435 Systems and methods for automated bracket design
A design system for designing brackets for gas turbine engines is described. The system may be implemented with a computer workstation and includes a part model...
US-5,689,434 Monitoring and control of fluid driven tools
A system for monitoring and/or controlling the torque applied by a fluid driven tool for driving threaded fasteners, such as tools driven by either air or oil....
US-5,689,433 Method and apparatus for compacting integrated circuits with wire length minimization
A computer-aided design method and apparatus for compacting semiconductor circuit layouts to meet a specified set of design rules begins by fracturing a...
US-5,689,432 Integrated circuit design and manufacturing method and an apparatus for designing an integrated circuit in...
A method for designing an integrated circuit involves a four step process. First, a behavioral circuit model (BCM) is read which contains assignment statements...
US-5,689,431 Golf course yardage and information system
A player position determining and course management system for a golf course having a plurality of roving units for use by players in playing the course is...
US-5,689,430 Internal state determining apparatus
An internal state determining apparatus according to the present invention includes at least one inner circuit, means for detecting a change in voltage supplied...
US-5,689,429 Finger wear detection for production line battery tester
A method for detecting wear in a battery tester probe. The method includes providing a battery tester unit having at least one tester finger, generating a tester...
US-5,689,428 Integrated circuits, transistors, data processing systems, printed wiring boards, digital computers, smart...
An integrated circuit includes conductive elements and a radiation sensitive material interposed between the conductive elements and dosed to different...
US-5,689,427 Method and apparatus for optimal feedrate control on wire-cutting electric discharging machine (WEDM)
Disclosed is a feedrate controlling method and apparatus for controlling a wire-cutting electric discharging machine (WEDM) to operate at optimal feedrate. In...
US-5,689,426 Computer-controlled master reproducer for depositing a master reproduction on a substrate, method for...
A computer-controlled master reproducer for depositing a master reproduction on a substrate includes a master source containing in machine-readable format one or...
US-5,689,425 Color registration system for a printing press
A control system is disclosed for controlling misregistration between the colors of an image printed on a web. The system includes an imaging device such as a...
US-5,689,424 Encoded screen records for international postage meters
In a digital postage meter having a housing shell, a display screen mounted in the housing shell, and a removable printhead, a method of transmitting information...
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