Patents by Inventor Joseph D. Harwood

Joseph D. Harwood 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).

  • Publication number: 20020061066
    Abstract: The quality of digital images recovered from compressed data in an inter-frame redundancy-removing scheme is enhanced using a self-adaptive feedback scheme in an image compression/decompression system so as to include means for the compensation of the distortion component from prior frame compression in subsequent difference frame compression. Each transmitted frame is stored after a full compress/decompress cycle, and difference data (which includes the inverse of the distortion component from compression of the transmitted frame) representing the difference between the stored frame and the incoming new frame is transmitted. Consequently, the quality of static regions in the recovered images may be improved with each subsequent iteration by taking the distortion component in the prior frame into consideration along with the inter-frame motion information. The feedback loop thus forms a self-adaptive iterative cycle.
    Type: Application
    Filed: November 8, 2001
    Publication date: May 23, 2002
    Inventors: Michael I. Persiantsev, Rajugopal R. Gubbi, Joseph D. Harwood
  • Patent number: 6347155
    Abstract: The quality of digital images recovered from compressed data in an inter-frame redundancy-removing scheme is enhanced using a self-adaptive feedback scheme in an image compression/decompression system so as to include means for the compensation of the distortion component from prior frame compression in subsequent difference frame compression. Each transmitted frame is stored after a full compress/decompress cycle, and difference data (which includes the inverse of the distortion component from compression of the transmitted frame) representing the difference between the stored frame and the incoming new frame is transmitted. Consequently, the quality of static regions in the recovered images may be improved with each subsequent iteration by taking the distortion component in the prior frame into consideration along with the inter-frame motion information. The feedback loop thus forms a self-adaptive iterative cycle.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: February 12, 2002
    Assignee: Sharewave, Inc.
    Inventors: Michael I. Persiantsev, Rajugopal R. Gubbi, Joseph D. Harwood
  • Patent number: 6314207
    Abstract: The quality of digital images recovered from compressed data in an inter-frame redundancy-removing scheme is enhanced using a self-adaptive feedback scheme in an image compression/decompression system so as to include means for the compensation of the distortion component from prior frame compression in subsequent difference frame compression. Each transmitted frame is stored after a full compress/decompress cycle, and difference data (which includes the inverse of the distortion component from compression of the transmitted frame) representing the difference between the stored frame and the incoming new frame is transmitted. Consequently, the quality of static regions in the recovered images may be improved with each subsequent iteration by taking the distortion component in the prior frame into consideration along with the inter-frame motion information. The feedback loop thus forms a self-adaptive iterative cycle.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: November 6, 2001
    Assignee: Sharewave, Inc.
    Inventors: Michael I. Persiantsev, Rajugopal R. Gubbi, Joseph D. Harwood
  • Patent number: 6310975
    Abstract: The quality of digital images recovered from compressed data in an inter-frame redundancy-removing scheme is enhanced using a self-adaptive feedback scheme in an image compression/decompression system so as to include means for the compensation of the distortion component from prior frame compression in subsequent difference frame compression. Each transmitted frame is stored after a full compress/decompress cycle, and difference data (which includes the inverse of the distortion component from compression of the transmitted frame) representing the difference between the stored frame and the incoming new frame is transmitted. Consequently, the quality of static regions in the recovered images may be improved with each subsequent iteration by taking the distortion component in the prior frame into consideration along with the inter-frame motion information. The feedback loop thus forms a self-adaptive iterative cycle.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: October 30, 2001
    Assignee: Sharewave, Inc.
    Inventors: Michael I. Persiantsev, Rajugopal R. Gubbi, Joseph D. Harwood
  • Patent number: 6310979
    Abstract: The quality of digital images recovered from compressed data in an inter-frame redundancy-removing scheme is enhanced using a self-adaptive feedback scheme in an image compression/decompression system so as to include means for the compensation of the distortion component from prior frame compression in subsequent difference frame compression. Each transmitted frame is stored after a full compress/decompress cycle, and difference data (which includes the inverse of the distortion component from compression of the transmitted frame) representing the difference between the stored frame and the incoming new frame is transmitted. Consequently, the quality of static regions in the recovered images may be improved with each subsequent iteration by taking the distortion component in the prior frame into consideration along with the inter-frame motion information. The feedback loop thus forms a self-adaptive iterative cycle.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: October 30, 2001
    Assignee: Sharewave, Inc.
    Inventors: Michael I. Persiantsev, Rajugopal R. Gubbi, Joseph D. Harwood
  • Patent number: 6310973
    Abstract: The quality of digital images recovered from compressed data in an inter-frame redundancy-removing scheme is enhanced using a self-adaptive feedback scheme in an image compression/decompression system so as to include means for the compensation of the distortion component from prior frame compression in subsequent difference frame compression. Each transmitted frame is stored after a full compress/decompress cycle, and difference data (which includes the inverse of the distortion component from compression of the transmitted frame) representing the difference between the stored frame and the incoming new frame is transmitted. Consequently, the quality of static regions in the recovered images may be improved with each subsequent iteration by taking the distortion component in the prior frame into consideration along with the inter-frame motion information. The feedback loop thus forms a self-adaptive iterative cycle.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: October 30, 2001
    Assignee: Sharewave, Inc.
    Inventors: Michael I. Persiantsev, Rajugopal R. Gubbi, Joseph D. Harwood
  • Patent number: 6310974
    Abstract: The quality of digital images recovered from compressed data in an inter-frame redundancy-removing scheme is enhanced using a self-adaptive feedback scheme in an image compression/decompression system so as to include means for the compensation of the distortion component from prior frame compression in subsequent difference frame compression. Each transmitted frame is stored after a full compress/decompress cycle, and difference data (which includes the inverse of the distortion component from compression of the transmitted frame) representing the difference between the stored frame and the incoming new frame is transmitted. Consequently, the quality of static regions in the recovered images may be improved with each subsequent iteration by taking the distortion component in the prior frame into consideration along with the inter-frame motion information. The feedback loop thus forms a self-adaptive iterative cycle.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: October 30, 2001
    Assignee: Sharewave, Inc.
    Inventors: Michael I. Persiantsev, Rajugopal R. Gubbi, Joseph D. Harwood
  • Patent number: 6307971
    Abstract: The quality of digital images recovered from compressed data in an inter-frame redundancy-removing scheme is enhanced using a self-adaptive feedback scheme in an image compression/decompression system so as to include means for the compensation of the distortion component from prior frame compression in subsequent difference frame compression. Each transmitted frame is stored after a full compress/decompress cycle, and difference data (which includes the inverse of the distortion component from compression of the transmitted frame) representing the difference between the stored frame and the incoming new frame is transmitted. Consequently, the quality of static regions in the recovered images may be improved with each subsequent iteration by taking the distortion component in the prior frame into consideration along with the inter-frame motion information. The feedback loop thus forms a self-adaptive iterative cycle.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: October 23, 2001
    Assignee: Sharewave, Inc.
    Inventors: Michael I. Persiantsev, Rajugopal R. Gubbi, Joseph D. Harwood
  • Patent number: 6219838
    Abstract: Dithering logic includes a number of programmable linear feedback shift registers (LFSRs), each configured to receive one of a number of color components (e.g., red-green-blue) of a video information signal as an input and to provide one of a number of dithered color components of the video information signal as an output. The dithered color components each include a greater number of bits than the color components. The LFSRs may be configured so that each LFSR includes a mask register configured to accept a characteristic polynomial. The dithering logic may be included in a set-top controller of a computer network that is organized to include a graphics processor communicatively coupled to the set-top controller. The dithering logic is thus configured to introduce pseudorandom noise into video information signals transmitted from the graphics processor to the set-top controller in accordance with one or more characteristic polynomials. Preferably, the characteristic polynomials are primitive polynomials.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: April 17, 2001
    Assignee: Sharewave, Inc.
    Inventors: Cory A. Cherichetti, Joseph D. Harwood
  • Patent number: 6064437
    Abstract: Video information which is organized in a first format is converted to a second format by first scaling the video information to produce scaled video information and then color correcting the scaled video information to produce color corrected video information at a network server. Scaling the video information may be accomplished by first applying a vertical scaling process to the video information to produce vertically scaled video information. Second, an anti-flicker filter may be applied to the vertically scaled video information to produce the scaled video information. The vertical scaling process includes a pixel-by-pixel conversion process wherein, for each group of six scan lines in a frame of the video information, color information for individual pixels which make up the group of six scan lines is scaled to provide color information for pixels in a corresponding group of five scan lines of a frame of the vertically scaled video information.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: May 16, 2000
    Assignee: Sharewave, Inc.
    Inventors: Michael H. Phan, Joseph D. Harwood
  • Patent number: 5600347
    Abstract: A system for horizontal expansion of low resolution display modes onto high resolution displays including flat panels at a variable scaling factor is disclosed. The system may be combined with known methods for vertical expansion to allow low resolution display modes to be expanded onto any high resolution display. Two different methods are provided, one for graphics modes and one for text modes, to attain better screen image quality. In the first method, a first pixel data sequence to be expanded is first oversampled at a multiple of the frequency thereof to produce an intermediate oversampled data sequence. The oversampled data sequence is linearly decimated by a factor of less than unity to produce a replicated second data sequence longer than the first, which is then displayed.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: February 4, 1997
    Assignee: International Business Machines Corporation
    Inventors: Stephen P. Thompson, Masaki Oie, Akihiro Ogura, Kiyoshi Takemura, Joseph D. Harwood