Patents by Inventor Yi-Lang Liu

Yi-Lang Liu 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: 7970165
    Abstract: System and method for digitally watermarking data. A preferred embodiment comprises a quantizer to limit a data value provided by a signal input to a set of values, a rounder unit coupled to the quantizer, a control unit coupled to the rounder unit and to a watermark input, and a multiplexer having a first input coupled to the rounder unit and a control input coupled to the control unit. The rounder unit rounds a quantized data value to a nearest integer, the control unit provides a control signal based on the rounded, quantized data value and a parity of a watermark provided by the watermark input, and the multiplexer selects between an output of the rounder unit, an incremented output of the counter unit, and a decremented output of the counter unit, based on the control signal provided by the control unit.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: June 28, 2011
    Assignees: Taiwan Semiconductor Manufacturing Company, Ltd., Global Unichip Corp.
    Inventors: Chia Ping Chen, Yi-Lang Liu
  • Patent number: 7848581
    Abstract: System and method for memory efficient decode and viewing of compressed image files. A preferred embodiment comprises a decoder coupled to a data input, a resize unit coupled to the decoder, a memory coupled to the resize unit, and a reorder data unit coupled to the memory. The decoder decompresses image data that is provided by the data input, while the resize unit resizes the decompressed image data from a first size to a second size. The memory stores the resized image data and the reorder data unit rearranges the image data into a format suitable for display. By resizing the image data prior to subsequent processing, memory requirements (such as storage space and bandwidth) are reduced.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: December 7, 2010
    Assignees: Taiwan Semiconductor Manufacturing Company, Ltd., Global Unichip Corp.
    Inventor: Yi-Lang Liu
  • Publication number: 20080226118
    Abstract: System and method for digitally watermarking data. A preferred embodiment comprises a quantizer to limit a data value provided by a signal input to a set of values, a rounder unit coupled to the quantizer, a control unit coupled to the rounder unit and to a watermark input, and a multiplexer having a first input coupled to the rounder unit and a control input coupled to the control unit. The rounder unit rounds a quantized data value to a nearest integer, the control unit provides a control signal based on the rounded, quantized data value and a parity of a watermark provided by the watermark input, and the multiplexer selects between an output of the rounder unit, an incremented output of the counter unit, and a decremented output of the counter unit, based on the control signal provided by the control unit.
    Type: Application
    Filed: March 13, 2007
    Publication date: September 18, 2008
    Inventors: Chia Ping Chen, Yi-Lang Liu
  • Publication number: 20080219569
    Abstract: System and method for memory efficient decode and viewing of compressed image files. A preferred embodiment comprises a decoder coupled to a data input, a resize unit coupled to the decoder, a memory coupled to the resize unit, and a reorder data unit coupled to the memory. The decoder decompresses image data that is provided by the data input, while the resize unit resizes the decompressed image data from a first size to a second size. The memory stores the resized image data and the reorder data unit rearranges the image data into a format suitable for display. By resizing the image data prior to subsequent processing, memory requirements (such as storage space and bandwidth) are reduced.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 11, 2008
    Inventor: Yi-Lang Liu