Active noise and vibration control system
It is, therefore, an object of the present invention to provide an improved system for controlling vibrational energy within a first frequency range within a vehicle or the like from a vibrational ene... Read More
Inventors: Heath, Michael C.;, Assignee: Lord Corporation (Cary, NC) |
Method and apparatus for microwave predistorter linearizer with electronic tuning
In one aspect of the invention, a predistorter linearizer for use with a radio frequency amplifier comprises a gain distorter having a first variable load to provide variability in the gain characteri... Read More
Inventors: Arell, Thomas William;, Assignee: The Whitaker Corporation (Wilmington, DE) |
Spectral shaping of circuit errors in digital-to-analog converters
The present invention is a hardware-efficient DAC topology that can be used to achieve a variety of conversion noise-shaping characteristics. The present invention encompasses specific first and secon... Read More
Inventors: Galton, Ian A.;, Assignee: Galton; Ian A. (Del Mar, CA) |
Method and apparatus for suppressing tones induced by cyclic dynamic element matching (DEM) algorithms
The foregoing and other problems are overcome by methods and apparatus in accordance with embodiments of these teachings. These teachings provide a technique to suppress or cancel the generation of to... Read More
Inventors: Ruha, Antti; Ruotsalainen, Tarmo; Tervaluoto, Jussi-Pekka; Kauppinen, Jani;, Assignee: Nokia Corporation (Espoo, FI) |
Method and apparatus for mismatched shaping of an oversampled converter
An embodiment of the present invention is directed to a method and apparatus for spectrally shaping mismatch errors in a multi-bit digital to analog converter (DAC) constructed from K separate multi-e... Read More
Inventors: Brooks, Todd L.; Ho, David S. P.; Miller, Kevin L.; Fogleman, Eric;, Assignee: Broadcom Corporation (Irvine, CA) |
Spectral shaping dynamic encoder for a DAC
A tree-structured dynamic encoder in accordance with the invention generates an N-bit encoder output word in response to each word of a sequence of binary encoder input words, wherein the number of en... Read More
Inventors: Lin, Chia-Liang;, Assignee: Realtek Semiconductor Corp (Hsinchu, TW) |
Gauge for remotely indicating the pressure of a subterranean formation
Referring to the drawings and first to FIG. 1, the portion of the gauge which is lowered into a subterranean formation through a bore hole is shown. This may be termed the "down hole" portion. The ga... Read More
Inventors: Clark, Kenneth K.;, Assignee: Geophysical Research Corporation (Tulsa, OK) |
Down hole apparatus for sensing and storing values of physical parameters
It is a primary object of this invention to provide a subsurface, self-contained, self-powered, instrument which has sensors which are sensitive to earth parameters in a deep borehole and which provid... Read More
Inventors: Clark, Kenneth K.; Harper, James C.;, Assignee: Geophysical Research Corporation (Tulsa, OK) |
Optical analog to digital converter
According to the teachings of the present invention, environmental condition responsive apparatus includes means for sensing a first environmental condition, which includes means for providing a coded... Read More
Inventors: Balkanli, Hayati;, Assignee: Lynes, Inc. (Houston, TX) |
Gauge for remotely indicating the pressure of a subterranean formation
OF THE PREFERRED EMBODIMENT Referring to the drawing, and first to FIG. 1, a cross-sectional view of an instrument which is suitable for positioning in an oil or gas well for measuring the pressure w... Read More
Inventors: Clark, Kenneth K.;, Assignee: Geophysical Research Corporation (Tulsa, OK) |
Device for transmitting of binary data between a mobile data carrier and a stationary station
We claim: 1. A device for transmitting binary data between a mobile data carrier (10) and a stationary station (11), the data carrier (10) having a passing movement past the stationary station (11), i... Read More
Inventors: Fauser, Edwin; List, Hans; Schirmer, Gunter;, Assignee: Robert Bosch GmbH (Stuttgart, DE) |
Dual edge pulse width modulation system
What is claimed is: 1. A dual edge pulse width modulation system comprising: a ramp generator for generating a voltage ramp; an n bit digital to analog converter having a normal and an inverted output... Read More
Inventors: Jordan, Edward P.;, Assignee: Analog Devices, Inc. (Norwood, MA) |
Active EMI filter having no inductive current sensing device
The proposed topology has a voltage input instead of a current sensing device to capture the common mode noise current to be canceled. Instead of current sensing as in the prior art, an error amplifie... Read More
Inventors: Honda, Jun;, Assignee: International Rectifier Corporation (El Segundo, CA) |
Low hold time statisized dynamic flip-flop
The present invention relates to a method and apparatus for performing data operations using a low hold time statisized dynamic flip-flop. The present invention also relates to a method and apparatus... Read More
Inventors: Saraf, Ritesh;, Assignee: Sun Microsystems, Inc. (Santa Clara, CA) |
Heated automobile mirror
We claim: 1. A defogging mirror unit comprises a plate of thermally and electrically conductive metal material formed to provide a recess at one side of the plate, a self-regulating electrical resista... Read More
Inventors: Berg, Peter G.; Strobel, Stephen J.;, Assignee: Texas Instruments Incorporated (Dallas, TX) |
Method and circuit for controlling a bus in system and semiconductor integrated circuit device using the same, wherein the controlling circuit comprises a latch for holding a voltage level on the bus
It is a general object of the present invention to provide a method and circuit for reducing power consumed in a bus control circuit and a semiconductor integrated circuit device using the same in whi... Read More
Inventors: Watanabe, Hiroaki;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Method and apparatus for automatically adjusting noise immunity of an integrated circuit
In accordance with a preferred embodiment of the present invention, a noise-immune integrated circuit that is capable of automatically adapting to environmental changes includes multiple functional lo... Read More
Inventors: Allen, David Howard; Stasiak, Daniel Lawrence;, Assignee: International Business Machines Corporation (Armonk, NY) |
Voltage generating apparatus
OF PREFERRED EMBODIMENTS Before describing the specific embodiments of the invention, the conversion principle of the capacitance division type D/A converter and the reverse change in the output sign... Read More
Inventors: Kimura, Mutsumi;, Assignee: Seiko Epson Corporation (Tokyo, JP) |
Reference voltage distribution for multiload i/o systems
According to an embodiment of the invention a circuit that is to be coupled to a reference voltage line is described. The circuit includes a noise coupling circuit that is to couple noise from the cir... Read More
Inventors: Dabral, Sanjay; Mooney, Stephen R.; Schoenborn, T. Zale; Calvin, Sam E.; Frodsham, Tim;, Assignee: Intel Corporation (Santa Clara, CA) |
Input stage apparatus and method having a variable reference voltage
The present invention is directed to an input stage and method having increased input signal noise margin for generating an output signal having a predetermined logic level in response to receiving an... Read More
Inventors: Mazumder, Kallol; Smith, Scott;, Assignee: Micron Technology, Inc. (Boise, ID) |
Method for digitally measuring electrical impedance
The instant invention is distinguished over the known prior art in a multiplicity of ways. For one thing, the instant invention provides a unique digital system for digitally measuring an unknown elec... Read More
Inventors: Slates, Richard D.;, Assignee: Bently Nevada, LLC (Minden, NV) |
System for measuring and recording a utility consumption
It is an object of the invention to provide an improved system for measuring and recording a utility consumption, in which the drawbacks associated with hitherto proposed systems are substantially red... Read More
Inventors: Galpern, Natan;, Assignee: Arad Ltd. (Kibbutz Daliah, IL) |
Baseband data switching apparatus for digital communications system
An object of the present invention is to provide a baseband switching apparatus which facilitates synchronization of time lags and polarities and switching over of the regular standby channel without ... Read More
Inventors: Shinmyo, Saburo;, Assignee: Nippon Electric Co., Ltd. (Tokyo, JP) |
Method of synchronizing two binary trains
To this end, the invention provides a method of synchronizing two binary trains in order to switch from the first train to the second, wherein a synchronization range is used which extends between a f... Read More
Inventors: Guerin, Francois;, Assignee: Alcatel Thomson Faisceaux Hertziens (Levallois Perret, FR) |
Indicator arrangement
What I claim is: 1. An automatically self-cancelling indicator flasher arrangement for a vehicle comprising: indicator lamps on each side of a vehicle and connectable to a source of power by means of ... Read More
Inventors: Shannon, Brian;, Assignee: |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST*** *** NO IMAGES AVAILABLE***
Description:... Read More
Inventors: , Assignee: |
Method of making V-grooved sheet metal pulleys
Objectives of the invention include providing new methods and procedures for the manufacture from a simple, single sheet metal blank, a dynamically balanced V-grooved sheet metal pulley having a flat ... Read More
Inventors: Kraft, Derald H.;, Assignee: Aspro, Inc. (Canton, OH) |
Vertical deflection circuit for a cathode-ray tube having a vertical image-position adjustment circuit
With the above situation in mind, this invention has been devised, and its object is to provide a vertical deflection circuit for a CRT having a vertical image-position adjustment circuit capable of c... Read More
Inventors: Yamanaka, Hideo;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Windshield wiper system
In the drawing the structural unit of an electric motor 11 with permanent magnets is designated 10. Motor 11 drives at least one wiper (which is not shown). Voltage is supplied to motor 11 via the te... Read More
Inventors: Bauer, Kurt; Schneider, Theodor;, Assignee: SWF Electric GmbH (Bietigheim-Bissingen, DE) |
Method to control stops of an intermittently operating driving motor
An object of the invention is to provide an improved method to control stopping of an intermittently operating drive motor. Another object of the invention is to provide an improved method of controll... Read More
Inventors: Olsson, Staffan;, Assignee: Flyct AB (Solna, SE) |
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