Patents by Inventor Kenneth Rose
Kenneth Rose 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: 7756700Abstract: Pitch estimation and classification into voiced, unvoiced and transitional speech were performed by a spectro-temporal auto-correlation technique. A peak picking formula was then employed. A weighing function was then applied to the power spectrum. The harmonics weighted power spectrum underwent mel-scaled band-pass filtering, and the log-energy of the filter's output was discrete cosine transformed to produce cepstral coefficients. A within-filter cubic-root amplitude compression was applied to reduce amplitude variation without compromise of the gain invariance properties.Type: GrantFiled: February 1, 2008Date of Patent: July 13, 2010Assignee: The Regents of the University of CaliforniaInventors: Kenneth Rose, Liang Gu
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Publication number: 20100104025Abstract: A method is described for efficiently determining total end-to-end distortion of a pre-compressed data stream, such as video streams or other media streams, at the time of delivery over a lossy-network, and for providing adaptive error-resilient delivery schemes based on distortion estimates. The methods can be utilized with single or multilayer packet streams and are particularly well suited for video streams. By way of example, distortion estimates are performed by generating side-information at the time of data stream compression, wherein the side-information is used in conjunction with information about the network status to determine an estimated distortion for the group of packets when the data stream is transported over the network to a destination end. This estimation may be utilized within described resiliency techniques in which the error correction mechanism is selected in response to the estimated distortion, which may be additionally refined in reference to cost factors.Type: ApplicationFiled: September 18, 2009Publication date: April 29, 2010Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Kenneth Rose, Rui Zhang, Shankar Regunathan
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Patent number: 7639739Abstract: A method is described for efficiently determining total end-to-end distortion of a pre-compressed data stream, such as video streams or other media streams, at the time of delivery over a lossy-network, and for providing adaptive error-resilient delivery schemes based on distortion estimates. The methods can be utilized with single or multilayer packet streams and are particularly well suited for video streams. By way of example, distortion estimates are performed by generating side-information at the time of data stream compression, wherein the side-information is used in conjunction with information about the network status to determine an estimated distortion for the group of packets when the data stream is transported over the network to a destination end. This estimation may be utilized within described resiliency techniques in which the error correction mechanism is selected in response to the estimated distortion, which may be additionally refined in reference to cost factors.Type: GrantFiled: November 1, 2002Date of Patent: December 29, 2009Assignee: The Regents of the University of CaliforniaInventors: Kenneth Rose, Rui Zhang, Shankar Regunathan
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Publication number: 20090147846Abstract: A scalable predictive coder in which the current frame of data is predicted at the enhancement-layer by processing and combining the reconstructed signal at: (i) the current base-layer (or lower layers) frame; and (ii) the previous enhancement-layer frame. The combining rule takes into account the compressed prediction error of the base-layer, and the parameters used for its compression.Type: ApplicationFiled: November 19, 2008Publication date: June 11, 2009Applicant: VOICECRAFT, INC.Inventor: Kenneth Rose
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Publication number: 20080162122Abstract: Pitch estimation and classification into voiced, unvoiced and transitional speech were performed by a spectro-temporal auto-correlation technique. A peak picking formula was then employed. A weighing function was then applied to the power spectrum. The harmonics weighted power spectrum underwent mel-scaled band-pass filtering, and the log-energy of the filter's output was discrete cosine transformed to produce cepstral coefficients. A within-filter cubic-root amplitude compression was applied to reduce amplitude variation without compromise of the gain invariance properties.Type: ApplicationFiled: February 1, 2008Publication date: July 3, 2008Inventors: Kenneth Rose, Liang Gu
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Publication number: 20080084500Abstract: A scalable predictive coder in which the current frame of data is predicted at the enhancement-layer by processing and combining the reconstructed signal at: (i) the current base-layer (or lower layers) frame; and (ii) the previous enhancement-layer frame. The combining rule takes into account the compressed prediction error of the base-layer, and the parameters used for its compression.Type: ApplicationFiled: October 1, 2007Publication date: April 10, 2008Applicant: VOICECRAFT, INC.Inventor: Kenneth Rose
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Patent number: 7337107Abstract: Pitch estimation and classification into voiced, unvoiced and transitional speech were performed by a spectro-temporal auto-correlation technique. A peak picking formula was then employed. A weighting function was then applied to the power spectrum. The harmonics weighted power spectrum underwent mel-scaled band-pass filtering, and the log-energy of the filter's output was discrete cosine transformed to produce cepstral coefficients. A within-filter cubic-root amplitude compression was applied to reduce amplitude variation without compromise of the gain invariance properties.Type: GrantFiled: October 2, 2001Date of Patent: February 26, 2008Assignee: The Regents of the University of CaliforniaInventors: Kenneth Rose, Liang Gu
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Patent number: 7289675Abstract: A scalable predictive coder in which the current frame of data is predicted at the enhancement-layer by processing and combining the reconstructed signal at: (i) the current base-layer (or lower layers) frame; and (ii) the previous enhancement-layer frame. The combining rule takes into account the compressed prediction error of the base-layer, and the parameters used for its compression.Type: GrantFiled: June 7, 2005Date of Patent: October 30, 2007Assignee: Voicecraft, Inc.Inventor: Kenneth Rose
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Publication number: 20070189324Abstract: An apparatus comprising a printed circuit board. A first integrated circuit (IC) is mounted on the printed circuit board, wherein the first IC comprises a first memory device, and wherein the first IC is configured to operate in a first mode when a first value is stored in the first memory device, and wherein the first IC is configured to operate in a second mode when a second value is stored in the first memory device. The printed circuit board also includes a second IC mounted thereon. The second IC comprises a second memory device that stores the first value. A third IC mounted on the printed circuit board is configured to provide a copy of the first value stored in the second memory device to the first IC for storage in the first memory device, wherein the third IC is configured to provide the copy of the first value to the first IC without condition.Type: ApplicationFiled: January 31, 2006Publication date: August 16, 2007Inventors: Kenneth Rose, David Walker
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Patent number: 7103039Abstract: The present invention relates to a method and apparatus for balancing loads in multiple switching fabrics. Each switching fabric comprises data ports through which data frames enter or exit the switching fabric. In one embodiment, the apparatus includes a buffer and a routing data generation circuit. The buffer receives a data frame to be transmitted to a destination device via one of the switching fabrics coupled thereto. The routing data generation circuit is coupled to the buffer. The routing data generation circuit generates and adds routing data to the data frame received by the buffer. The routing data identifies one of the data ports of one of the switching fabrics through which the data frame will exit to reach the destination device. After the routing data is added to the data frame, the buffer transmits the data frame to one of the switching system.Type: GrantFiled: March 16, 2001Date of Patent: September 5, 2006Assignee: Cisco Technology, Inc.Inventor: Kenneth Rose
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Publication number: 20050265616Abstract: A scalable predictive coder in which the current frame of data is predicted at the enhancement-layer by processing and combining the reconstructed signal at: (i) the current base-layer (or lower layers) frame; and (ii) the previous enhancement-layer frame. The combining rule takes into account the compressed prediction error of the base-layer, and the parameters used for its compression.Type: ApplicationFiled: June 7, 2005Publication date: December 1, 2005Inventor: Kenneth Rose
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Patent number: 6947886Abstract: Disclosed are scalable quantizers for audio and other signals characterized by a non-uniform, perception-based distortion metric, that operate in a common companded domain which includes both the base-layer and one or more enhancement-layers. The common companded domain is designed to permit use of the same unweighted MSE metric for optimal quantization parameter selection in multiple layers, exploiting the statistical dependence of the enhancement-layer signal on the quantization parameters used in the preceding layer. One embodiment features an asymptotically optimal entropy coded uniform scalar quantizer. Another embodiment is an improved bit rate scalable multi-layer Advanced Audio Coder (AAC) which extends the scalability of the asymptotically optimal entropy coded uniform scalar quantizer to systems with non-uniform base-layer quantization, selecting the enhancement-layer quantization methodology to be used in a particular band based on the preceding layer quantization coefficients.Type: GrantFiled: February 21, 2003Date of Patent: September 20, 2005Assignee: The Regents of the University of CaliforniaInventors: Kenneth Rose, Ashish Aggarwal, Shankar L. Regunathan
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Patent number: 6917714Abstract: A scalable predictive coder in which the current frame of data is predicted at the enhancement-layer by processing and combining the reconstructed signal at: (i) the current base-layer (or lower layers) frame; and (ii) the previous enhancement-layer frame. The combining rule takes into account the compressed prediction error of the base-layer, and the parameters used for its compression.Type: GrantFiled: April 2, 2004Date of Patent: July 12, 2005Assignee: Voicecraft, Inc.Inventor: Kenneth Rose
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Publication number: 20040223653Abstract: A scalable predictive coder in which the current frame of data is predicted at the enhancement-layer by processing and combining the reconstructed signal at: (i) the current base-layer (or lower layers) frame; and (ii) the previous enhancement-layer frame. The combining rule takes into account the compressed prediction error of the base-layer, and the parameters used for its compression.Type: ApplicationFiled: April 2, 2004Publication date: November 11, 2004Inventor: Kenneth Rose
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Publication number: 20040128130Abstract: Pitch estimation and classification into voiced, unvoiced and transitional speech were performed by a spectro-temporal auto-correlation technique. A peak picking formula was then employed. A weighting function was then applied to the power spectrum. The harmonics weighted power spectrum underwent mel-scaled band-pass filtering, and the log-energy of the filter's output was discrete cosine transformed to produce cepstral coefficients. A within-filter cubic-root amplitude compression was applied to reduce amplitude variation without compromise of the gain invariance properties.Type: ApplicationFiled: May 19, 2003Publication date: July 1, 2004Inventors: Kenneth Rose, Liang Gu
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Patent number: 6731811Abstract: A scalable predictive coder in which the current frame of data is predicted at the enhancement-layer by processing and combining the reconstructed signal at: (i) the current base-layer (or lower layers) frame; and (ii) the previous enhancement-layer frame. The combining rule takes into account the compressed prediction error of the base-layer, and the parameters used for its compression.Type: GrantFiled: December 18, 1998Date of Patent: May 4, 2004Assignee: VoiceCraft, Inc.Inventor: Kenneth Rose
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Publication number: 20030212551Abstract: Disclosed are scalable quantizers for audio and other signals characterized by a non-uniform, perception-based distortion metric, that operate in a common companded domain which includes both the base-layer and one or more enhancement-layers. The common companded domain is designed to permit use of the same unweighted MSE metric for optimal quantization parameter selection in multiple layers, exploiting the statistical dependence of the enhancement-layer signal on the quantization parameters used in the preceding layer. One embodiment features an asymptotically optimal entropy coded uniform scalar quantizer. Another embodiment is an improved bit rate scalable multi-layer Advanced Audio Coder (AAC) which extends the scalability of the asymptotically optimal entropy coded uniform scalar quantizer to systems with non-uniform base-layer quantization, selecting the enhancement-layer quantization methodology to be used in a particular band based on the preceding layer quantization coefficients.Type: ApplicationFiled: February 21, 2003Publication date: November 13, 2003Inventors: Kenneth Rose, Ashish Aggarwal, Shankar L. Regunathan
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Publication number: 20030099298Abstract: A method is described for efficiently determining total end-to-end distortion of a pre-compressed data stream, such as video streams or other media streams, at the time of delivery over a lossy-network, and for providing adaptive error-resilient delivery schemes based on distortion estimates. The methods can be utilized with single or multilayer packet streams and are particularly well suited for video streams. By way of example, distortion estimates are performed by generating side-information at the time of data stream compression, wherein the side-information is used in conjunction with information about the network status to determine an estimated distortion for the group of packets when the data stream is transported over the network to a destination end. This estimation may be utilized within described resiliency techniques in which the error correction mechanism is selected in response to the estimated distortion, which may be additionally refined in reference to cost factors.Type: ApplicationFiled: November 1, 2002Publication date: May 29, 2003Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Kenneth Rose, Rui Zhang, Shankar Regunathan
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Patent number: 5889891Abstract: Vectors associated with multiple sources are quantized with a codebook. A mapping function associates each source with a subset of codevectors in the codebook, each subset being defined prior to quantization. Each vector from a source is matched to a codevector in the subset corresponding to the source. The universal codebook is designed by first providing a codebook and a mapping function. Using the codebook, the mapping function is updated by identifying subsets that reduce distortion when vectors from a source are quantized using a corresponding subset.Type: GrantFiled: November 21, 1995Date of Patent: March 30, 1999Assignee: Regents of the University of CaliforniaInventors: Allen Gersho, Kenneth Rose, Sangeeta Ramakrishnan
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Patent number: 5412221Abstract: A particle fallout/activity sensor measures relative amounts of dust or other particles which collect on a mirror in an area to be monitored. The sensor includes a sensor module and a data acquisition module, both of which can be operated independently of one another or in combination with one another. The sensor module includes a housing containing the mirror, an LED assembly for illuminating the mirror and an optical detector assembly for detecting light scattered off of the mirror by dust or other particles collected thereon. A microprocessor controls operation of the sensor module's components and displays results of a measurement on an LCD display mounted on the housing. A push button switch is also mounted on the housing which permits manual initiation of a measurement. The housing is constructed of light absorbing material, such as black delrin, which minimizes detection of light by the optical detector assembly other than that scattered by dust or particles on the mirror.Type: GrantFiled: April 26, 1994Date of Patent: May 2, 1995Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Ihlefeld M. Curtis, Robert C. Youngquist, John S. Moerk, Kenneth A. Rose, III