Patents by Inventor Xiaoyin Cheng

Xiaoyin Cheng 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: 20120039389
    Abstract: A distortion representation is estimated for a macroblock (10) of a frame (1) by determining for each subgroup (30) of at least one pixel (20) out of multiple subgroups (30) in the macroblock (10), an activity value representative of a distribution of pixel values in a neighborhood (40) comprising multiple pixels (20) and encompassing the subgroup (30). Respective distortion weights are determined for the subgroups based on the activity values. These distortion weights are employed in order to estimate the distortion representation as a weighted combination of the pixel values of the macroblock (10) and reference pixel values for the macroblock (10). The distortion weights imply that different portions of a macroblock (10) will contribute more or less to the distortion representation as compared to other portions of the macroblock (10). The distortion representation will reduce ringing artifacts between high and low activity areas in a frame (1) during encoding.
    Type: Application
    Filed: April 27, 2010
    Publication date: February 16, 2012
    Applicant: Telefonaktiebolaget L M Ericsson
    Inventors: Rickard Sjoberg, Kenneth Andersson, Xiaoyin Cheng
  • Patent number: 7466896
    Abstract: A method of making a photonic fabric display includes wrapping photonic fibers with a yarn, weaving the wrapped photonic fibers to form a fabric, printing a pattern on the fabric, surface treating the fabric, and coupling the photonic fibers with a light source to form a photonic fabric display.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: December 16, 2008
    Assignee: The Hong Kong Polytechnic University
    Inventors: Xiaoming Tao, Xiaoyin Cheng, Jianming Yu, Lijie Liu, Wang-wah Wong, Wing-kwong Tam
  • Publication number: 20080119896
    Abstract: An anti-sleep apnea device having an elastic abdomen belt optionally with a fabric strain sensor, a first signal-processing unit for processing signals from the fabric strain sensor in response to the change of circumference of the abdomen, two electrodes adapted to be disposed on the user's wrist for releasing electrical pulses to an acupoint of the user, a second signal-processing unit associated with the electrodes, and wireless means for transmitting signals from the first signal-processing unit to the second signal-processing unit. The present invention also discloses a method for managing sleep apnea by applying electrical pulses upon an acupoint of the user.
    Type: Application
    Filed: October 28, 2006
    Publication date: May 22, 2008
    Inventors: Kwok Shing Thomas Wong, Xiaoyin Cheng, Ching Ching Cheung, Wai Yee Joanne Chung, Ka Lun Fan, Yin Ki Lau, Wai Man Li, Siu Luen Ng, Xiaoming Tao, Harry Zhang
  • Publication number: 20080019659
    Abstract: A photonic fabric display wherein graphic patterns, color, luminescence intensity, and light self-amplification are controllable. Incorporated in the fabric display are a number of photonic fibers which contain a converter either coated on a surface of the photonic fibers or inside said photonic fibers and a light source, such as LEDs, is connected to the end of the photonic fibers by using an efficient coupler.
    Type: Application
    Filed: October 26, 2006
    Publication date: January 24, 2008
    Inventors: Xiaoming Tao, Xiaoyin Cheng, Jianming Yu, Lijie Liu, Wang-wah Wong, Wing-kwong Tam
  • Publication number: 20070281155
    Abstract: A method of making a photonic fabric display includes wrapping photonic fibers with a yarn, weaving the wrapped photonic fibers to form a fabric, printing a pattern on the fabric, surface treating the fabric, and coupling the photonic fibers with a light source to form a photonic fabric display.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 6, 2007
    Inventors: Xiaoming Tao, Xiaoyin Cheng, Jianming Yu, Lijie Liu, Wang-wah Wong, Wing-kwong Tam