Patents by Inventor Hanna S Hsu

Hanna S Hsu 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).

  • Dynamic adaptation of impaired RF communication channels in a communication system
    Patent number: 7418240
    Abstract: A system for dynamically adapting a communication channel to channel impairments includes a spectrum monitor configured to determine a channel impairment characteristic related to a channel impairment present in the channel. The system includes a system manager configured to determine a quality metric indicative of channel performance for the channel, and adjust one or more operating parameters in a set of channel operating parameters when the quality metric is not within a target range, whereby the communication channel operates in accordance with the adjusted parameters.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: August 26, 2008
    Assignee: Broadcom Corporation
    Inventors: Hanna S Hsu, Daniel H Howard
  • Dynamic adaptation of impaired RF communication channels in a communication system
    Publication number: 20040203392
    Abstract: A system for dynamically adapting a communication channel to channel impairments includes a spectrum monitor configured to determine a channel impairment characteristic related to a channel impairment present in the channel. The system includes a system manager configured to determine a quality metric indicative of channel performance for the channel, and adjust one or more operating parameters in a set of channel operating parameters when the quality metric is not within a target range, whereby the communication channel operates in accordance with the adjusted parameters.
    Type: Application
    Filed: September 18, 2002
    Publication date: October 14, 2004
    Applicant: Broadcom Corporation
    Inventors: Hanna S. Hsu, Daniel H. Howard
  • Rectangular-to-polar conversion angle quantizer
    Patent number: 6785343
    Abstract: A normalizer (70) truncates a variable plurality of numbers of least significant bits of input I and Q words representing an original phase angle in rectangular coordinates. A read only memory (90′) generates a phase signal representing a resultant phase angle range in polar coordinates that includes the original phase angle.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: August 31, 2004
    Assignee: Northrop Grumman Corporation
    Inventor: Hanna S. Hsu