Patents by Inventor Yui-Luen J. Ho

Yui-Luen J. Ho 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).

  • Architecture for an AM/FM digital intermediate frequency radio
    Patent number: 7123892
    Abstract: An AM/FM DIF radio has an IF to audio converter that provides an audio signal from an IF signal responsive to a clock signal. During the processing of the IF signal, a spurious signal is intentionally generated. The spurious signal is based on the predetermined offset which is included in the IF signal applied to an A/D converter. The predetermined offset is greater than or equal to half of the AM bandwidth and less than or equal to the system bandwidth. The spurious signal is generated at a frequency proportional to the sum of an imprecision offset and the predetermined offset. A low pass filter removes the spurious signal while preserving the desired portion of the audio signal.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: October 17, 2006
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Junsong Li, Bradley A. Banks, Yui-Luen J. Ho