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Patent # Description
US-5,923,576 Parallel recursive digital filters
This invention generally relates to improvements in digital audio processing and more particularly to digitally filtering stereo data in parallel to increase the...
US-5,923,575 Method for eletronically representing a number, adder circuit and computer system
The invention relates to a method for electronically representing a number V in a binary data word. Both the exponent and the mantissa are represented as 2'...
US-5,923,574 Optimized, combined leading zeros counter and shifter
By combining a count leading zero circuit with a bit shifter in a digital processor though detection of groups of leading zeros prior to completion of counting...
US-5,923,573 Three-dimensional CAD system for producing a three-dimensional model
Kit models stored in the storage are displayed on a display by the display unit. The kit model being displayed has geometric shape data such as points, curved...
US-5,923,572 Fuel dispensing control, authorization and accounting system
The disclosed system controls, authorizes and accounts for liquid petroleum fuel dispensed from liquid petroleum fuel dispensers without the need for control and...
US-5,923,571 Apparatus and method for automatic congruent control of multiple boilers sharing a common feedwater line and...
Two control methods and systems for automatically achieving and maintaining a desired sodium/phosphate ratio and phosphate concentration of the boiler waters in...
US-5,923,570 Clock wiring design method for integrated circuit
In a gate array type automatic wiring design, after arranging macrocells necessary for forming an integrated circuit, the wiring operation for clock wires 16,...
US-5,923,569 Method for designing layout of semiconductor integrated circuit semiconductor integrated circuit obtained by...
First of all, a given logic circuit is divided into a combinational circuit portion and a register portion. The combinational circuit portion obtained by...
US-5,923,568 Distributed capacitance estimations of interconnects within integrated circuits
A method of estimating the distributed capacitance of an interconnection line within an integrated circuit. The invention includes a method for estimating...
US-5,923,567 Method and device for test vector analysis
A method and device for testing and manufacturing integrated circuits such as microprocessors, memories, ASICs, programmable logic, and other types of integrated...
US-5,923,566 Phase shifted design verification routine
A computer-implemented routine that verifies that an existing chip design can be converted to a PSM or reports localized design conflicts based solely on a...
US-5,923,565 Apparatus and method for extracting capacitance in the presence of two ground planes
The present invention provides a computer implemented method and apparatus for determining the total capacitance of a primary interconnect line positioned...
US-5,923,564 Performance analysis including half-path joining
Critical speed paths through a latch-based logic circuit must contain at least one latch-to-latch combinational delay which exceeds the nominal phase time of the...
US-5,923,563 Variable density fill shape generation
The present invention is directed to a method for adding fill shapes to a chip in a manner which accommodates a wide range of within-chip pattern density...
US-5,923,562 Method for automatically eliminating three way intersection design conflicts in phase edge, phase shift designs
A method automatically locates and eliminates the most frequently encountered phase conflict in phase edge phase shift mask (PSM) designs used in the manufacture...
US-5,923,561 Process of generating a succession of discrete points defining cutter path, by calculating a space interval of...
A process of generating a succession of discrete points to be followed by a cutter, so as to move the cutter along a desired cutter path, including a step of...
US-5,923,560 Method for dynamically compensating for tool abrasion in a numerically-controlled machine tool
A method of the invention detects a machining load acting on a tool during a machining process, estimates abrasion amount of the tool based on the machining load...
US-5,923,559 Magnetic bearing apparatus
A magnetic bearing apparatus comprises a first magnetic bearing for levitating a rotary body by magnetic attraction forces in an axial direction thereof and a...
US-5,923,558 Automated integrated input-output control system apparatus
The automated integrated input-output control system apparatus. A versatile industrial control apparatus that can be utilized as a modular unit or integrated...
US-5,923,557 Method and apparatus for providing a standard interface to process control devices that are adapted to...
A method and apparatus is disclosed that provides a standard interface to process control devices which are adapted to differing field-bus protocols. The...
US-5,923,556 Method and apparatus for imprinting an electro-cardiogram tracing on a greeting card and other articles
Method and apparatus for producing a greeting card or merchandising item. An electrocardiogram wave is obtained from a user, digitized through a processor and...
US-5,923,555 Welding system
A welding system for automatically welding two workpieces together at a joint. The system includes a welding box having an electrode for welding the workpieces...
US-5,923,554 Method for assessing the number and type of flaws
A method for assessing a number and type of flaws of the present invention includes the steps of: counting the number of flaws existing within a first region...
US-5,923,553 Method for controlling a semiconductor manufacturing process by failure analysis feedback
A method for controlling a semiconductor manufacturing process by failure analysis feedback compares a previous failure analysis result with current real-time...
US-5,923,552 Systems and methods for facilitating the exchange of information between separate business entities
Systems, methods, and computer program products synchronize product fabrication schedules with supplier schedules. A fabrication schedule is obtained from a...
US-5,923,551 Combined boost/flyback power convertor
An avionics power conversion circuit having a first input adapted to receive an AC input signal, a second input adapted to receive a DC input signal and an...
US-5,923,550 Interference reduction by harmonic phase shift in multiple PWM rectifier operation
A method and apparatus for reduction of radio frequency interference caused by pulse width modulation of rectifier switching devices (56A, 56B, 58A, 58B) in...
US-5,923,549 X-ray high voltage generator protected against fault by backup system
A second inverter portion having a similar configuration to a first inverter portion is connected in parallel with the first inverter portion which consists of...
US-5,923,548 Active clamp used to maintain proper current transformer operation
An active clamp used to maintain proper current transformer operation in a resonant transition converter circuit or any circuit having a wide range of reverse...
US-5,923,547 Snubber circuit for a power converter and method of operation thereof
For use with a power converter having a switching circuit coupled to a primary winding of a transformer and a rectifier coupled to a secondary winding of the...
US-5,923,546 Control circuit and method for driving and controlling parasitic vibration of a piezoelectric transformer-inverter
A piezoelectric transformer is driven with the PWM driving method by means of a driving voltage with a waveform obtained by time-dividing a first frequency with...
US-5,923,545 Method and apparatus for providing multiple output voltages from a voltage regulator
A voltage regulator illustrating one embodiment of the apparatus of the present invention is described. The voltage regulator includes an output stage for...
US-5,923,544 Noncontact power transmitting apparatus
A noncontact power transmitting apparatus which makes it possible to rapidly charge a secondary cell of a part to be charged with large electric power and...
US-5,923,543 Resonance-type power switching device
A resonance-type power switching device includes: a power controller for producing a power control pulse, main and auxiliary switches for generating switching...
US-5,923,542 Method and apparatus for driving piezoelectric transformer
A combination of two control methods are used, one of which is a method to control the boosting ratio of the piezoelectric transformer and another is a method to...
US-5,923,541 PC card connector device
A PC Card slot which can enhance the safety, operability and assembly efficiency of a device by removing and locking a plurality of PC Cards by the use of only a...
US-5,923,540 Semiconductor unit having semiconductor device and multilayer substrate, in which grounding conductors surround...
A semiconductor device has an electrical circuit and a grounding terminal. A multilayer substrate has a plurality of insulator layers and conductor layers in a...
US-5,923,539 Multilayer circuit substrate with circuit repairing function, and electronic circuit device
A multilayer circuit substrate with a circuit repairing function which has a circuit substrate having a circuit pattern and repair pattern on the inner layer via...
US-5,923,538 Support member for mounting a microelectronic circuit package
A Tape-Automated-Bonding (TAB) package includes a resilient polyimide layer that supports a metal leadframe. A microelectronic circuit die is mounted in a hole...
US-5,923,537 Power-on protective structure for expansion cards of portable computers or the like
A power-on protective structure for expansion cards installed in a portable computer or the like is provided. The power-on protective structure allows the...
US-5,923,536 End-wall frame for led alphanumeric display
An end-wall frame for an LED alphanumeric display circuit board provides full-length accurate standoffs for the display to prevent cracking and crazing of the...
US-5,923,535 Electronic device assembly
An electronic device assembly includes a rigid, first substrate and a second substrate. The first substrate has a first pad on the upper surface, and a...
US-5,923,534 PC card
A PCMCIA (Personal Computer Memory Card International Association) expansion PC (Personal Computer) card arranged to be inserted into a PC card slot formed in a...
US-5,923,533 Multiple tile scaleable cooling system for semiconductor components
A fluid-cooling system for the edge-cooling of semiconductor tiles that are arranged into rows and columns and are mounted on one or more panels is constructed...
US-5,923,532 Lanced card guide
A card guide for receiving one or more circuit cards in an electronic device is disclosed. The card guide comprises a generally rectangular plate having a...
US-5,923,531 Enhanced circuit board arrangement for a computer
A computer arrangement includes an electronics enclosure located within a computer housing, which is divided into a plurality of physically separated cooling...
US-5,923,530 Electronic apparatus incorporating a circuit module having a heat sink
A circuit module comprising a circuit board, a function component, and a heat sink. The circuit board has a number of circuit components and a circuit element...
US-5,923,529 Card slot unit for a personal computer
The present invention provides a card slot unit that allows a function extending card having connection electrodes on an insertion-edge side to be inserted into...
US-5,923,528 Pitvotal apparatus for flat display panel
A pivotal apparatus for a flat display panel having a front housing and a rear housing connected to the front housing includes a support unit for supporting the...
US-5,923,527 Safe electrical interconnection box and methods of safe electrical interconnection
A safe electrical interconnection box includes a rear wall, a front panel and a plurality of lateral walls extending between the rear wall and front panel so as...
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