Patents by Inventor Jeffrey P. Woodard
Jeffrey P. Woodard has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11895303Abstract: A system and method for implementing a distributed source coding quantization scheme is provided. In one example, two independent but statistically correlated data sources can be asymmetrically compressed so that one source is compressed at a higher ratio than the other. The resulting signals are transmitted and decoded by a receiver. The highly compressed source can utilize the non-highly compressed source as side information so as to minimize the compression loss associated with the higher compression ratio. A conditional codebook can be created that not only depends on the highly compressed quantizer, but also depends on the quantized symbol received from the non-highly compressed data source.Type: GrantFiled: May 24, 2021Date of Patent: February 6, 2024Assignee: The MITRE CorporationInventors: Robert M. Taylor, Jr., Jeffrey P. Woodard
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Publication number: 20210281860Abstract: A system and method for implementing a distributed source coding quantization scheme is provided. In one example, two independent but statistically correlated data sources can be asymmetrically compressed so that one source is compressed at a higher ratio than the other. The resulting signals are transmitted and decoded by a receiver. The highly compressed source can utilize the non-highly compressed source as side information so as to minimize the compression loss associated with the higher compression ratio. A conditional codebook can be created that not only depends on the highly compressed quantizer, but also depends on the quantized symbol received from the non-highly compressed data source.Type: ApplicationFiled: May 24, 2021Publication date: September 9, 2021Applicant: The MITRE CorporationInventors: Robert M. TAYLOR, JR., Jeffrey P. WOODARD
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Patent number: 11051030Abstract: A system and method for implementing a distributed source coding quantization scheme is provided. In one example, two independent but statistically correlated data sources can be asymmetrically compressed so that one source is compressed at a higher ratio than the other. The resulting signals are transmitted and decoded by a receiver. The highly compressed source can utilize the non-highly compressed source as side information so as to minimize the compression loss associated with the higher compression ratio. A conditional codebook can be created that not only depends on the highly compressed quantizer, but also depends on the quantized symbol received from the non-highly compressed data source.Type: GrantFiled: January 6, 2020Date of Patent: June 29, 2021Assignee: The MITRE CorporationInventors: Robert M. Taylor, Jr., Jeffrey P. Woodard
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Publication number: 20200145673Abstract: A system and method for implementing a distributed source coding quantization scheme is provided. In one example, two independent but statistically correlated data sources can be asymmetrically compressed so that one source is compressed at a higher ratio than the other. The resulting signals are transmitted and decoded by a receiver. The highly compressed source can utilize the non-highly compressed source as side information so as to minimize the compression loss associated with the higher compression ratio. A conditional codebook can be created that not only depends on the highly compressed quantizer, but also depends on the quantized symbol received from the non-highly compressed data source.Type: ApplicationFiled: January 6, 2020Publication date: May 7, 2020Applicant: The MITRE CorporationInventors: Robert M. TAYLOR, JR., Jeffrey P. WOODARD
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Patent number: 10531099Abstract: A system and method for implementing a distributed source coding quantization scheme is provided. In one example, two independent but statistically correlated data sources can be asymmetrically compressed so that one source is compressed at a higher ratio than the other. The resulting signals are transmitted and decoded by a receiver. The highly compressed source can utilize the non-highly compressed source as side information so as to minimize the compression loss associated with the higher compression ratio. A conditional codebook can be created that not only depends on the highly compressed quantizer, but also depends on the quantized symbol received from the non-highly compressed data source.Type: GrantFiled: September 30, 2016Date of Patent: January 7, 2020Assignee: The MITRE CorporationInventors: Robert M. Taylor, Jr., Jeffrey P. Woodard
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Publication number: 20180097557Abstract: A system and method for implementing a distributed source coding quantization scheme is provided. In one example, two independent but statistically correlated data sources can be asymmetrically compressed so that one source is compressed at a higher ratio than the other. The resulting signals are transmitted and decoded by a receiver. The highly compressed source can utilize the non-highly compressed source as side information so as to minimize the compression loss associated with the higher compression ratio. A conditional codebook can be created that not only depends on the highly compressed quantizer, but also depends on the quantized symbol received from the non-highly compressed data source.Type: ApplicationFiled: September 30, 2016Publication date: April 5, 2018Applicant: The MITRE CorporationInventors: Robert M. TAYLOR, JR., Jeffrey P. WOODARD
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Patent number: 6611602Abstract: Noise is removed from the digitized output of a sensor, subject to undesired resonance, even when the resonant frequency is unknown or drifts, with sufficiently low phase delay for the sensor to be used in closed-loop control. A very narrow notch filter which removes the resonance-induced noise is recursive (IIR) and therefore has a low phase delay. However, the apparatus which determines the center frequency of the notch filter is non-recursive, and therefore stable. It includes a tunable FIR filter which tracks the same resonance that we wish the IIR filter to remove. Tuning the FIR filter to minimize the output of the FIR filter therefore tunes the notch frequency to align with the resonant frequency. The tuning parameter which adaptively produces this result is suitably scaled and biased, and is applied to the IIR filter.Type: GrantFiled: June 2, 1999Date of Patent: August 26, 2003Assignees: The Regents of the University of California, The Boeing CompanyInventors: Stanley A. White, Jeffrey P. Woodard, Michael Alan Soderstrand, Karl Einar Nelson, Phong Vu Nguyen Dao
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Patent number: 5960091Abstract: Noise is removed from the digitized output of a sensor, subject to undesired resonance, even when the resonant frequency is unknown or drifts, with sufficiently low phase delay for the sensor to be used in closed-loop control. A very narrow notch filter which removes the resonance-induced noise is recursive (IIR) and therefore has a low phase delay. However, the apparatus which determines the center frequency of the notch filter is non-recursive, and therefore stable. It includes a tunable FIR filter which tracks the same resonance that we wish the IIR filter to remove. Tuning the FIR filter to minimize the output of the FIR filter therefore tunes the notch frequency to align with the resonant frequency. The tuning parameter which adaptively produces this result is suitably scaled and biased, and is applied to the IIR filter.Type: GrantFiled: April 25, 1997Date of Patent: September 28, 1999Inventors: Stanley A. White, Jeffrey P. Woodard, Michael Alan Soderstrand, Karl Einar Nelson, Phong Vu Nguyen Dao
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Patent number: 5732003Abstract: Noise may be reduced or eliminated from a digital sawtooth signal representing the phase of a periodic signal. This may be done precisely, even when inexpensive fixed-point arithmetic is used. In one aspect of the invention, the input signal (noise plus true signal) 12 is filtered to produce, in succession: (a) mod one differentiated noise plus slope of true phase signal 28; (b) mod one differentiated noise plus slope of residual phase signal (true phase signal minus estimated slope of true phase signal) 36; (c) mod one differentiated noise 46; (d) estimated noise 62; and (e) smoothed phase signal 72. In a second aspect, a noisy phase signal 12 is extracted from a first arbitrary periodic signal and the above steps are used to generate a noise-reduced phase signal 72. The noise-reduced phase signal 72 is then used to generate a second arbitrary periodic signal of the same frequency.Type: GrantFiled: April 15, 1996Date of Patent: March 24, 1998Assignee: Boeing North American, Inc.Inventors: Stanley A. White, Jeffrey P. Woodard
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Patent number: 5587910Abstract: A vehicle navigation system uses a one-multiplier Gray-Markel filter. The sign parameter of each stage of the filter is selected by an algorithm which limits the maximum signal passing through the filter, thereby preventing overflow.Type: GrantFiled: February 6, 1995Date of Patent: December 24, 1996Assignee: Rockwell International CorporationInventor: Jeffrey P. Woodard
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Patent number: 5274739Abstract: A SOUND RECOGNITION PROCESS comprises training a sound recognition system to a shape Hidden Markov Model (HMM) from a shape codebook of shape codewords, and to a separate gain HMM from a gain codebook of gain codewords. An unknown token is assigned to the sound category associated with the shape HMM and gain HMM with the greatest probability product. Shape and gain codewords replacements for incoming Linear Predictive Coded (LPC) vectors are selected by choosing the codeword with minimum distortion between the codeword and a combination of the vector and some of the preceding codewords, exponentially weighted by time.Type: GrantFiled: April 15, 1992Date of Patent: December 28, 1993Assignee: Rockwell International CorporationInventor: Jeffrey P. Woodard
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Patent number: 4484297Abstract: An apparatus for generating a variable data base file from a single original entry control datum. The apparatus utilizes a microprocessor unit to interact with a logical number generator to modify the original entry control signal into a larger data base which may be similar to but not identical to the original datum signal.Type: GrantFiled: October 6, 1981Date of Patent: November 20, 1984Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: James J. Maier, Jeffrey P. Woodard, John V. Ferrante, Michael A. Heffron
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Patent number: 4274092Abstract: A display system for use with a microscopic optical instrument having at least one eyepiece. The display system has a display unit operably attached to the eyepiece and incorporates therein a LED display which provides direct visual feedback to an individual who views imagery through the optical instrument. The LED display is interfaced to a computer which provides intelligent control of the display system when activated by the operator of the optical instrument. When not activated, the display system allows normal viewing through the optical instrument to take place.Type: GrantFiled: November 7, 1979Date of Patent: June 16, 1981Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Richard S. Vonusa, Jeffrey P. Woodard