Patents by Inventor Wei Chuan Ma

Wei Chuan Ma 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).

  • Self-correcting multirate filter
    Patent number: 8693601
    Abstract: A system includes a polyphase multirate filter and a controller which, responsive to detecting a data stream: measures a current phase relationship between a current resampling filter input clock signal and a current multirate output clock signal; identifies, based on a mapping of the measured phase relationship within a pre-generated quantized mapping table, an initial polyphase filter coefficient index corresponding to the measured phase relationship; selects, based on the initial polyphase filter coefficient index identified, a corresponding polyphase filter component from within the multirate filter; configures the multirate filter to pass data from the data stream through the corresponding polyphase filter component to generate an initial output data sample; updates the initial polyphase filter coefficient index to a calculated next polyphase filter coefficient index value, in response to a request for generation of a next output data sample; and self-corrects the multirate filter responsive to a pre-ide
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: April 8, 2014
    Assignee: Intel Corporation
    Inventors: Victor Adut, Gregory M. Agami, Yun H. Kim, Wei Chuan Ma
  • SELF-CORRECTING MULTIRATE FILTER
    Publication number: 20130170531
    Abstract: A system includes a polyphase multirate filter and a controller which, responsive to detecting a data stream: measures a current phase relationship between a current resampling filter input clock signal and a current multirate output clock signal; identifies, based on a mapping of the measured phase relationship within a pre-generated quantized mapping table, an initial polyphase filter coefficient index corresponding to the measured phase relationship; selects, based on the initial polyphase filter coefficient index identified, a corresponding polyphase filter component from within the multirate filter; configures the multirate filter to pass data from the data stream through the corresponding polyphase filter component to generate an initial output data sample; updates the initial polyphase filter coefficient index to a calculated next polyphase filter coefficient index value, in response to a request for generation of a next output data sample; and self-corrects the multirate filter responsive to a pre-ide
    Type: Application
    Filed: January 3, 2012
    Publication date: July 4, 2013
    Applicant: MOTOROLA MOBILITY, INC.
    Inventors: Victor Adut, Gregory M. Agami, Yun H. Kim, Wei Chuan Ma