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Attorney: Whitham & Marhoefer


Number of patents: 477
Last date: May 19, 1998

1                      
NumberTitleIssue Date
5754399Direct coupled CPU package
An improved packaging scheme for a CPU of a main frame computer improves the performance while at the same reduces the cost of manufacture of the main frame computer. A single packaging technology is used to package the whole CPU and eliminates cable conn...
05/19/1998
5365108Metal matrix composite semiconductor power switch assembly
A power semiconductor assembly, particularly a semiconductor switch assembly which has a number of discrete emitter connection pads, comprised of a metal matrix composite housing and a copper or aluminum post with a cross-sectional area sufficiently large...
11/15/1994
5365463Method for evaluating the timing of digital machines with statistical variability in their delays
An apparatus and method for simulating timing performance of designs of digital machines which allows for the avoidance of lumping of correlation of correlation coefficients which may be significant to the slacks which may occur in a particular design. De...
11/15/1994
5349667Interrupt control system for microprocessor for handling a plurality of maskable interrupt requests
A microcomputer includes a maskable interrupt request terminal, a maskable interrupt request terminal, and a nonmaskable interrupt request terminal, and internally contains a status register having a group of flags indicating a maskable interrupt allowing...
09/20/1994
5334931Molded test probe assembly
A probe 100 which can be formed from a molded plastic provides an inexpensive construction for a probe which may be readily replaced in electrical testing apparatus, particularly of the automated type. A conductive contact tip 18 is preferably co-molded i...
08/02/1994
5333284Repeated ALU in pipelined processor design
A six-stage pipeline processor comprised of the sequential stages: instruction fetch; instruction decode; first full ALU; second full ALU; Fill Register; and Write Back Register. Memory addresses are calculated in the first ALU stage and this stage presen...
07/26/1994
5332441Apparatus for gettering of particles during plasma processing
Apparatus for plasma processing involving the gettering of particles having a high charge to mass ratio away from a semiconductor wafer are disclosed. In one aspect of the invention, magnets are used to produce a magnetic field which is transverse to an e...
07/26/1994
5330729Single crystal pulling apparatus
A single crystal pulling apparatus of the Czochralski method type wherein the cylindrical heater is supported not only by the two existing electrodes which are vertically shiftable but also by one or more vertical shafts, which may be electrodes or electr...
07/19/1994
5328603Lignocellulosic and cellulosic beads for use in affinity and immunoaffinity chromatography of high molecular weight proteins
Improved cellulosic beads for use as supports in bioaffinity chromatography are produced by dissolution of cellulose in a chaotropic cellulose solvent, formation of the dissolved cellulose into droplets, and immersion of the droplets into a non-solvent ca...
07/12/1994
5329439Zero-voltage-switched, three-phase pulse-width-modulating switching rectifier with power factor correction
A three-phase, pulse-width-modulated, switching rectifier, with zero-voltage-switching....
07/12/1994
5327565Data processing apparatus
A macroservice engine is provided to exclusively carry out a sequence control in a processing of a macroservice. On the other hand, a command execution unit carries out no macroservice, but generates a bus cycle exciting request for a bus control unit, wh...
07/05/1994
5326245Apparatus for extruding materials that exhibit anisotropic properties due to molecular or fibril orientation as a result of the extrusion process
Extrusion method and apparatus in which the liquid precursor of the extruded material is forced through a die formed by two surfaces moving in opposite directions relative to one another and transversely to the direction of material flow. Immediately upon...
07/05/1994
5327536Microprocessor having branch prediction function
A microprocessor which prefetches instructions in words which contain a fixed plurality of bytes based on addresses which disregard one or more less significant bits and in which instructions comprises a variable number of bytes includes an adder for supp...
07/05/1994
5325489Data transfer control device using direct memory access
When DMA transfer for a DMA transfer area is completed, DMA transfer for the next area may be continuously executed or stopped. In addition to this, if there is a need to urgently stop DMA transfer being executed, DMA transfer can be immediately stopped w...
06/28/1994
5325283Novel zero-voltage-switching family of isolated converters
An isolated zero-voltage-switching converter in which the magnetizing inductance of the isolating transformer is a resonant element and an open circuit is provided on the secondary side of the transformer during the time interval when both primary switche...
06/28/1994
5324205Array of pinless connectors and a carrier therefor
A high density array of pinless electrical, spring connectors are supported in an electrically insulative carrier. The carrier has an array of cavity nests for receiving the spring connectors, locking them into a stable position and functioning as an elec...
06/28/1994
5325321High speed parallel multiplication circuit having a reduced number of gate stages
A parallel multiplication circuit includes a plurality of Booth's decoders, a plurality of partial product generation circuits, and a plurality of full adders. Each Booth's decoder is constructed in accordance with the following decode signal generating l...
06/28/1994
5321977Integrated tip strain sensor for use in combination with a single axis atomic force microscope
An integrated tip strain sensor is combination with a single axis atomic force microscope (AFM) for determining the profile of a surface in three dimensions. A cantilever beam carries an integrated tip stem on which is deposited a piezoelectric film strai...
06/21/1994
5321400Serial data interface circuit dealing with a plurality of receiving modes
A serial interface circuit for performing operations in a plurality of modes is disclosed, which includes an input terminal supplied with a serial data, a first shift register fetching and shifting data at the input terminal in synchronism with a clock si...
06/14/1994
5321641Pseudo random pattern generation circuit
In a pseudo random pattern generation circuit having a normal input operation mode, a boundary scanning operation mode and an inherent pseudo random pattern generation mode, output stage selectors are provided to supply input data as output data without m...
06/14/1994
5319321Digital PLL circuit
A digital PLL circuit capable of stabilizing a phase comparison operation to largely reduce a jitter of an output signal, including a peak detection circuit for detecting a peak of an input signal level, a two-points sampling circuit for sampling two data...
06/07/1994
5319311Cable fault location method with discharge delay compensation using multiple pulses with different rates of voltage increase
Two or more rising pulse waves having different rates of voltage increase are applied to a measuring end of a cable and reflected waves from a fault point on the cable are detected to measure a turnaround propagation time between the measuring end and the...
06/07/1994
5319240Three dimensional integrated device and circuit structures
A set of three-dimensional structures and devices may be wired together to perform a wide variety of circuit functions such as SRAMs, DRAMs, ROMs and PLAs. Both N-Channel and P-Channel transistors can be made. The P-channel devices are fabricated conventi...
06/07/1994
5318748Centrifuge vessel for automated solid-phase immunoassay having integral coaxial waste chamber
A centrifuge vessel (10) for performing automated immunoassays is disclosed. The centrifuge vessel (10) comprises a center tube (11) and an outer waste chamber (15). A biomaterial (18) is held within the center tube (11) and is capable of binding specific...
06/07/1994
5317836Apparatus for polishing chamfers of a wafer
An apparatus for polishing edge chamfers of a semiconductor wafer to mirror gloss, having a rotatory cylindrical buff formed with annular groove(s) in its side and a wafer vacuum holder capable of holding and turning the wafer circumferentially, wherein t...
06/07/1994
5317778Automatic cleaning apparatus for wafers
An automatic cleaning apparatus cleans wafers one at a time without the necessity for transporting the wafers in a carrier such as a wafer cassette or basket. After a manufacturing step such as a polishing step, the wafers are carried to a loader assembly...
06/07/1994
5319570Control of large scale topography on silicon wafers
A method for the characterization of large scale wafer topography is applied to improving yields in the manufacture large scale integrated (LSI) devices. First, the heights at the center, the edge and an intermediate point are measured on eight equally sp...
06/07/1994
5316726Automated immunoassay analyzer with pictorial display of assay information
An automated immunoassay analyzer includes a computer controlled instrument (10) and display (16). The display (16) provides a real-time presentation of all operations being performed within the instrument (10). A large number of samples can be loaded int...
05/31/1994
5317252Dosimeter for monitoring the condition of polymeric materials and chemical fluids
A dosimeter with reproducible changes in &3xb5;', &3xb5;'', or their equivalent two parameter circuit representations, under a given treatment regime that correlate directly with changes in physical attributes of a material or fluid, such as strength, mod...
05/31/1994
5317338Visual measurement technique and test pattern for aperture offsets in photoplotters
A test pattern including an aperture image and a line image including a plurality of parallel lines, forming a measurement graticule, overlapping the aperture image, permits determination of dimensions for correction of alignment of image centerlines by i...
05/31/1994
5317392Noise reducing device for up-going signals in bidirectional CATV system
A device incorporated in a bidirectional CATV system for reducing noise introduced in an up-going channel at a subscriber station. A terminal unit and a protector perform monodirectional or bidirectional switching operations on the basis of a DC current w...
05/31/1994
5317530Rounding operation circuit
A rounding operation circuit for arithmetic logic unit of a signal processor provided for counting fractions over 1/2 as one and disregarding the rest for the positive and negative number, which comprises a decoder circuit having an (n+1)-long input to wh...
05/31/1994
5317657Extrusion of polymer waveguides onto surfaces
A waveguide structure is directly extruded onto a surface from a nozzle placed a predetermined distance above the surface and which is moved relative to the surface, preferably by means of a translation table. The predetermined distance is preferably main...
05/31/1994
5315749Method for holding substrates
A method of holding utilizing a fixture with five discrete vacuum elements provides support at four peripheral points on a substrate and at the substrate center. Two peripheral vacuum elements are fixed in position on a rigid frame. The remaining peripher...
05/31/1994
5314486Non-constrained total joint system
A non-constrained total joint prosthetic replacement device for metatarso-phalangeal joint. A first component comprises a convex-bearing surface and a rearwardly projecting stem configured to be received in the resected metatarsal bony shaft, and a second...
05/24/1994
5314840Method for forming an antifuse element with electrical or optical programming
A programmable antifuse element comprising adjacent bodies of germanium and aluminum or aluminum alloy form forming a low resistance connection of good mechanical and thermal properties when heated to a temperature where alloying of the aluminum and germa...
05/24/1994
5315167Voltage burn-in scheme for BICMOS circuits
A switchable voltage generator is provided on-chip together with circuitry including transistors formed in accordance with several different technologies and optimized for operation at different voltages. Provision of a voltage generator on the chip avoid...
05/24/1994
5313741Method of and an apparatus for slicing a single crystal ingot using an ID saw slicing machine therein
An improved method of using an ID saw slicing machine for slicing a single crystal ingot in a direction normal to the axis of the ingot to obtain wafers, of which the improvement lies in that the cutting load which the blade of the ID saw slicing machine ...
05/24/1994
5312238Apparatus for extruding materials that exhibit anisotropic properties by means of reciprocating die surfaces
Two movable die members that are situated opposed to each other in an extrusion die assembly, the axis of movement of the two die members is parallel to the longer sides of the rectangular cross-section of a throat opening of the extrusion die assembly. T...
05/17/1994
5313475ECC function with self-contained high performance partial write or read/modify/write and parity look-ahead interface scheme
An error correcting code (ECC) function and a parity interface scheme providing a translation capability between the ECC and parity protocols is implemented for memory systems in personal computers (PCs). The ECC function addresses the problems of interfa...
05/17/1994
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