Patents by Inventor Boon Keng Teng

Boon Keng Teng 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: 8704926
    Abstract: A CMOS image sensor allows for selectively outputting one of two vertical resolutions, e.g. 1080 to 720 lines. The scan conversion is implemented completely on the image sensor chip by using smaller sub-pixel cores, which can be electrically combined via switch transistors. A basic circuit of the CMOS image sensor has a number of pixel cells arranged in lines and columns. Each pixel cell has a photosensitive element that converts impinging light into electric charge and a first transfer element. The first transfer elements of m pixel cells arranged consecutively in the same column are arranged for transferring the charge generated in the respective m photosensitive elements during exposure to a single first charge storage element provided for the respective group of m pixel cells. In an exemplary embodiment the switching scheme allows for combining the signal information of either two or three vertically adjacent sub-pixel cores.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: April 22, 2014
    Assignee: Thomson Licensing
    Inventors: Heinrich Schemmann, Petrus Gijsbertus Maria Centen, Sabine Roth, Boon Keng Teng
  • Patent number: 8035746
    Abstract: The present invention relates to a method for time base correction during generation of a digital video signal from an analog input video signal, and to an apparatus having means for digitizing an analog input video signal using such method. According to the invention, the method includes the steps of: receiving an analog video signal; generating a digital video signal from the analog video signal with a video decoder; storing at least a part of the digital video signal in a memory; detecting a portion of corrupt data having an abnormal field ordering in the digital video signal; either discarding the portion of corrupt data or replacing at least a part of the portion of corrupt data with previous data stored in the memory; and outputting the digital video signal.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: October 11, 2011
    Assignee: Thomson Licensing
    Inventors: Li Bin Cai, Boon Keng Teng
  • Publication number: 20110128425
    Abstract: A CMOS image sensor allows for selectively outputting one of two vertical resolutions, e.g. 1080 to 720 lines. The scan conversion is implemented completely on the image sensor chip by using smaller sub-pixel cores, which can be electrically combined via switch transistors. A basic circuit of the CMOS image sensor has a number of pixel cells arranged in lines and columns. Each pixel cell has a photosensitive element that converts impinging light into electric charge and a first transfer element. The first transfer elements of m pixel cells arranged consecutively in the same column are arranged for transferring the charge generated in the respective m photosensitive elements during exposure to a single first charge storage element provided for the respective group of m pixel cells. In an exemplary embodiment the switching scheme allows for combining the signal information of either two or three vertically adjacent sub-pixel cores.
    Type: Application
    Filed: August 11, 2009
    Publication date: June 2, 2011
    Inventors: Heinrich Schemmann, Petrus Gijsbertus Maria Centen, Sabine Roth, Boon Keng Teng