Patents by Inventor Stephen Cheung

Stephen Cheung 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).

  • Patent number: 9503724
    Abstract: Systems and methods for interleaving video sub-blocks in video coding are described herein. In one aspect, an apparatus includes a memory and a video coder. The memory stores a first video block and a second video block. The first video block and the second video block include sub-blocks. The video coder processes a first sub-block of the first video block according to a first process and a second process, and processes a second sub-block of the first video block according to the first process and the second process after processing the first sub-block of the first video block according to the first process and the second process. Further, the video coder processes a first sub-block of the second video block according to the first process before processing the second sub-block of the first video block according to the first process.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: November 22, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Cheng-Teh Hsieh, Sumit Mohan, Ling Feng Huang, Feng Ge, Stephen Cheung
  • Patent number: 9277222
    Abstract: Methods and systems for performing at least one of video encoding and video decoding are disclosed. In one implementation, the system includes a controller configured to determine a video standard associated with a portion of the video data, each portion of the video data associated with one of a plurality of video standards. The controller is further configured to provide a set of the filter parameters which are associated with a video standard to be used for at least one of the video encoding and decoding and at least one filter configured to filter at least one reference pixel received from the reference pixel memory based, at least in part, on the provided set of filter parameters.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: March 1, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Stephen Cheung, Ling Feng Huang, Sumit Mohan
  • Publication number: 20130301742
    Abstract: Methods and systems for performing at least one of video encoding and video decoding are disclosed. In one implementation, the system includes a controller configured to determine a video standard associated with a portion of the video data, each portion of the video data associated with one of a plurality of video standards. The controller is further configured to provide a set of the filter parameters which are associated with a video standard to be used for at least one of the video encoding and decoding and at least one filter configured to filter at least one reference pixel received from the reference pixel memory based, at least in part, on the provided set of filter parameters.
    Type: Application
    Filed: March 28, 2013
    Publication date: November 14, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Stephen Cheung, Ling Feng Huang, Sumit Mohan
  • Publication number: 20130301712
    Abstract: Systems and methods for interleaving video sub-blocks in video coding are described herein. In one aspect, an apparatus includes a memory and a video coder. The memory stores a first video block and a second video block. The first video block and the second video block include sub-blocks. The video coder processes a first sub-block of the first video block according to a first process and a second process, and processes a second sub-block of the first video block according to the first process and the second process after processing the first sub-block of the first video block according to the first process and the second process. Further, the video coder processes a first sub-block of the second video block according to the first process before processing the second sub-block of the first video block according to the first process.
    Type: Application
    Filed: April 3, 2013
    Publication date: November 14, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Cheng-Teh Hsieh, Sumit Mohan, Ling Feng Huang, Feng Ge, Stephen Cheung
  • Publication number: 20130301713
    Abstract: Systems and methods for intra prediction video coding are described herein. In one aspect, an apparatus includes a processor and a memory. The processor divides a video block into a plurality of video sub-blocks having a first size. The video block includes video units and has an intra prediction mode, and each video sub-block of the plurality of video sub-blocks includes at least a non-zero integer number of video units of the video block. The processor further determines prediction variables for a first video sub-block of the plurality of video sub-blocks based on the intra prediction mode of the video block and determines a predicted video unit for each video unit of the first video sub-block based on the intra prediction mode of the video block and the prediction variables for the first video sub-block. The memory stores the predicted video units.
    Type: Application
    Filed: March 25, 2013
    Publication date: November 14, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Stephen Cheung, Sumit Mohan
  • Publication number: 20130222758
    Abstract: A pair of glasses having LED illumination has a bridge, two temples, at least one cover and at least one LED controller. Each one of the at least one LED controller is mounted between a corresponding cover and a corresponding temple, and has a switch mounted on and protruding from an outside of a corresponding cover. The switch is pressed to control an LED bulb of the LED controller to emit light through a front end of the glasses. Each cover and a corresponding temple have multiple snap-fit type joints respectively formed thereon. Each temple has retaining protrusions to hold a corresponding LED controller. Accordingly, assembling and fixing the present invention requires no bolts. The present invention is advantageous in easy assembly, convenient replacement of battery, intuitive operation and more safety protection.
    Type: Application
    Filed: February 23, 2012
    Publication date: August 29, 2013
    Inventors: CHAOFU KELVIN HE, STEPHEN CHEUNG
  • Publication number: 20110255288
    Abstract: A light illuminating system and method including a transparent shaft that extends vertically from a base and/or a positioner. A channel extends through the body of the transparent shaft. The channel being capable of receiving a string of lights which illuminate the transparent shaft. An object having a shape can be placed over the illuminated vertically extending transparent shaft such that the object becomes illuminated.
    Type: Application
    Filed: April 20, 2010
    Publication date: October 20, 2011
    Inventors: Lesley Wexler, Stephen Cheung
  • Patent number: 7196901
    Abstract: A portable electronic device includes an expansion base module, a pair of sliding members mounted slidably on the expansion base module, a system module connected to the sliding members, and a synchronizing unit including a pair of first front and rear pulleys, a pair of second front and rear pulleys, and an endless cord that is connected to the sliding members and that trains on the first front and rear and second front and rear pulleys in such a manner to permit synchronous sliding movements of the sliding members.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: March 27, 2007
    Assignee: Acer Inc.
    Inventors: Arif Maskatia, Stephen Cheung, Erich Elkins, Christopher Fruhauf
  • Patent number: 7106579
    Abstract: A portable electronic device includes an expansion base module with a connector, a hinge mechanism mounted slidably on the expansion base module, slidable relative to the expansion base module, and including a pivot shaft, a system module pivoted to the expansion base module through the pivot shaft, and a ribbon cable having a first segment that is electrically connected to and that extends from the connector toward the pivot shaft, and a second segment that extends from the first segment, that is wound around the pivot shaft, and that is electrically connected to the system module.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: September 12, 2006
    Assignee: Acer Inc.
    Inventors: Arif Maskatia, Stephen Cheung, Erich Elkins, Christopher Fruhauf
  • Patent number: 7019964
    Abstract: A portable electronic device includes a base module and an LCD module. The base module includes a housing that has front and rear end portions and opposite first and second sides that extend between the front and rear end portions, and a pair of pivots mounted on the rear end portion of the housing and disposed adjacent to the first and second sides of the housing, respectively. Each of the pivots is rotatable relative to the housing. The LCD module has opposite first and second sides, each of which is formed with an elongated guiding groove that receives and that engages slidably a respective one of the pivots therein.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: March 28, 2006
    Assignee: Acer Inc.
    Inventors: Arif Maskatia, Stephen Cheung, Kelly Kodama
  • Patent number: 6980420
    Abstract: A portable electronic device includes an expansion base module, a hinge mechanism mounted slidably on the expansion base module and slidable relative to the expansion base module, a docking unit pivoted to the hinge mechanism, defining a docking groove, and including a docking connector, and a system module including a panel having two opposite sides that respectively have two opposing end portions inserted into and detachably retained in the docking groove. The system module further includes a system connector that is mounted on the panel and that mates with the docking connector.
    Type: Grant
    Filed: June 9, 2003
    Date of Patent: December 27, 2005
    Assignee: Acer Inc.
    Inventors: Arif Maskatia, Stephen Cheung, Erich Elkins, Christopher Fruhauf
  • Patent number: 6862171
    Abstract: A portable electronic device includes a base module with a housing defining upper and lower sliding grooves at each of two opposite side walls of the housing, and a system module mounted slidably on the base module through a pair of sliding units. Each of the sliding units includes an upper rolling member that is received in the upper sliding groove and that is in rolling contact with a respective one of the side walls, and a lower rolling member that is received in the lower sliding groove and that is in rolling contact with a respective one of the side walls.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: March 1, 2005
    Assignee: ACER Inc.
    Inventors: Arif Maskatia, Stephen Cheung, Erich Elkins, Christopher Fruhauf
  • Publication number: 20050041381
    Abstract: A portable electronic device includes a base module with a housing defining upper and lower sliding grooves at each of two opposite side walls of the housing, and a system module mounted slidably on the base module through a pair of sliding units. Each of the sliding units includes an upper rolling member that is received in the upper sliding groove and that is in rolling contact with a respective one of the side walls, and a lower rolling member that is received in the lower sliding groove and that is in rolling contact with a respective one of the side walls.
    Type: Application
    Filed: August 19, 2003
    Publication date: February 24, 2005
    Inventors: Arif Maskatia, Stephen Cheung, Erich Elkins, Christopher Fruhauf
  • Publication number: 20040246666
    Abstract: A portable electronic device includes an expansion base module, a hinge mechanism mounted slidably on the expansion base module and slidable relative to the expansion base module, a docking unit pivoted to the hinge mechanism, defining a docking groove, and including a docking connector, and a system module including a panel having two opposite sides that respectively have two opposing end portions inserted into and detachably retained in the docking groove. The system module further includes a system connector that is mounted on the panel and that mates with the docking connector.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 9, 2004
    Inventors: Arif Maskatia, Stephen Cheung, Erich Elkins, Christopher Fruhauf
  • Publication number: 20040246668
    Abstract: A portable electronic device includes an expansion base module, a pair of sliding members mounted slidably on the expansion base module, a system module connected to the sliding members, and a synchronizing unit including a pair of first front and rear pulleys, a pair of second front and rear pulleys, and an endless cord that is connected to the sliding members and that trains on the first front and rear and second front and rear pulleys in such a manner to permit synchronous sliding movements of the sliding members.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 9, 2004
    Inventors: Arif Maskatia, Stephen Cheung, Erich Elkins, Christopher Fruhauf
  • Publication number: 20040246667
    Abstract: A portable electronic device includes an expansion base module with a connector, a hinge mechanism mounted slidably on the expansion base module, slidable relative to the expansion base module, and including a pivot shaft, a system module pivoted to the expansion base module through the pivot shaft, and a ribbon cable having a first segment that is electrically connected to and that extends from the connector toward the pivot shaft, and a second segment that extends from the first segment, that is wound around the pivot shaft, and that is electrically connected to the system module.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 9, 2004
    Inventors: Arif Maskatia, Stephen Cheung, Erich Elkins, Christopher Fruhauf
  • Publication number: 20020156509
    Abstract: A portable thermal control module (TCM), for use in rapid heating or cooling the body, is provided. This thermal control module creates or displaces heat through the Peltier effect. A system and method of dynamically controlling the temperature of a body using multiple TCMs is also provided. This system and method involves a flexible thermal control suit (TCS) and a microprocessor.
    Type: Application
    Filed: April 22, 2002
    Publication date: October 24, 2002
    Inventor: Stephen Cheung
  • Patent number: D519500
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: April 25, 2006
    Assignee: ACER Inc.
    Inventors: Arif Maskatia, Stephen Cheung, Kelly Kodama
  • Patent number: D690761
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: October 1, 2013
    Inventors: Chaofu Kelvin He, Stephen Cheung