Patents by Inventor Shin-I Chou

Shin-I Chou 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: 8732435
    Abstract: An input data stream is received for processing at an integrated circuit (IC) through multiple channels. The input data stream is interleaved and the interleaved input data stream is stored in a memory buffer associated with the IC. An addressing scheme is defined for reading and writing data samples from and to the memory buffer within the IC. The addressing scheme includes determining a current increment by analyzing a pattern associated with data samples within the memory buffer and determining the memory address for each data sample within the memory buffer using the current increment. A data sample for a frame is read from a corresponding address within the memory buffer using the addressing scheme and a subsequent data sample from the interleaved input data stream is written into the corresponding address of the memory buffer. The current increment and the addressing scheme are stored in the memory buffer.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: May 20, 2014
    Assignee: Altera Corporation
    Inventors: Shin-I Chou, Jianchuan Li
  • Patent number: 8650236
    Abstract: On a device having a maximum data rate, an interpolation filter can be configured in stages, with each stage may be broken into subfilters, which divides the output into phases. The ratio of the number of subfilters or phases in the final stage to the number of subfilters or phases in the initial stage is equal to the factor by which the data rate would otherwise increase. Thus for an interpolation factor of M, the output data rate can be kept the same as the input data rate by providing M subfilters, yielding M output phases each having an output rate equal to the input rate. The effective, or synthesized, output rate is M times the input rate. A decimation filter can be provided in the same way, with the effective input rate M times the output rate, even where the effective input rate would exceed the maximum data rate.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: February 11, 2014
    Assignee: Altera Corporation
    Inventor: Shin-I Chou