Patents by Inventor Jason Chan

Jason Chan 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: 20050287593
    Abstract: Provided are methods for diagnosing the propensity of a subject to develop skin inflammation, in particular, psoriasis. Also provided are methods of treatment with antagonists of IL-17, IL-19, and/or IL-23.
    Type: Application
    Filed: September 2, 2005
    Publication date: December 29, 2005
    Applicant: Schering Corporation
    Inventors: Robert Kastelein, Terrill McClanahan, Erin Murphy, Jason Chan
  • Patent number: 6959348
    Abstract: A system and a method for transcoding multiple media channels is disclosed herein. The system includes a first processor to parse a media data stream having one or more media data channels and a vector processor to decompress, scale, and then compress the parsed media channel. A parsed media data channel, in one embodiment, is accessed using a bit manipulator and packetized into decoder instruction packets and transmitted to the vector processor using a sequencer. The vector processor decompresses the decoder instruction packets, scales a macroblock generated from the packets, and then compresses the scaled macroblock. As a result, the scaled and compressed output has less data associated with the media channel, allowing for faster and/or more efficient storage or transmission. A reduced sized scale buffer is associated with another disclosed embodiment.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: October 25, 2005
    Assignee: VIXS Systems, Inc.
    Inventors: Jason Chan, Indra Laksono
  • Publication number: 20050066083
    Abstract: A system and a method for transcoding multiple media channels are provided. The system includes a first processor to parse a media data stream having one or more media data channels and a vector processor to decompress, scale, and then compress the parsed media channel. A parsed media data channel, in one embodiment, is accessed using a bit manipulator and packetized into decoder instruction packets and transmitted to the vector processor using a sequencer. The vector processor decompresses the decoder instruction pacets, scales a macroblock generated from the packets, and then compresses the scaled macroblock. As a result, the scaled and compressed output has less data associated with the media channel, allowing for faster and/or more efficient storage or transmission. A reduced sized scale buffer is associated with another disclosed embodiment.
    Type: Application
    Filed: November 5, 2004
    Publication date: March 24, 2005
    Inventors: Jason Chan, Indra Laksono
  • Publication number: 20050010626
    Abstract: A method for selectable quantization for use in an encoder for compressing video and/or audio data includes processing that begins by receiving discrete cosine transform data of an encoded signal. The processing continues by generating a plurality of quantization matrixes of discrete cosine transform data based on a quantization table and a plurality of quantization scaling factors. The process continues by analyzing the plurality of quantization matrixes to identify one of the plurality of quantization matrixes having a best match of reduced data content and acceptable video quality. The processing continues by selecting the one of the plurality of quantized matrixes.
    Type: Application
    Filed: August 12, 2004
    Publication date: January 13, 2005
    Inventors: Indra Laksono, Jason Chan
  • Patent number: 6643756
    Abstract: A request for video or graphics data is made to a memory controller. When the memory controller determines a translation of the data must first be made, a request is made to a translator. The translator either translates the address or requests translation information from the memory controller. The memory controller accesses memory based upon the translator request. If the request is for translation data the results are tagged for the translator. If the translator request is for the translated address, the results are tagged for the original request.
    Type: Grant
    Filed: November 11, 1999
    Date of Patent: November 4, 2003
    Assignee: ATI International Srl
    Inventors: Milivoje Aleksic, Nader Akhlaghi-Tavasoli, Jason Chan, Carl Mizuyabu, Antonio Asaro
  • Publication number: 20030053716
    Abstract: A circuit for transforming a raster image at least partially stored within an image buffer includes memory storing micro-code; a multiplier; an accumulator; and a sequential logic circuit. The multiplier is in communication with the image buffer and the memory and is operable to form a weighted pixel value as a product of a given pixel value from the buffer and an associated weighting factor within the micro-code. The sequential logic circuit is in communication with the memory and the buffer. It steps through the pixels and the memory to present pixels in the buffer and associated weighting factors from the micro-code, to the multiplier. The accumulator sums weighted pixel values calculated by the multiplier. Conveniently, the memory may be loaded with coefficients of linear equations to scale a raster image.
    Type: Application
    Filed: September 18, 2001
    Publication date: March 20, 2003
    Applicant: ViXS SYSTEMS, INC.
    Inventors: Jason Chan, Tom Longo