Patents by Inventor Yu-Chuan G. Lin

Yu-Chuan G. Lin 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: 9031166
    Abstract: Systems and methodologies are described that facilitate dynamically allocating demodulation resources of a wideband receiver to provide improved demodulation of simultaneously received signals. Signal-to-noise ratio (SNR) and/or packet error rate (PER) can be measured for the plurality of carriers to determine which demodulators related to the carriers require more resources than others to demodulate signals at a specified signal quality. Where the SNR of a related carrier is high and/or PER is low, the demodulator can require fewer resources than where the SNR of a related carrier is low and/or PER is high. In this regard, the resources are dynamically allocated among the demodulators and reallocated where SNR/PER changes and/or additional resources are made available.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: May 12, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Gregory R. Lie, Abhay A. Joshi, Yu-Chuan G. Lin, Lijun Lin
  • Patent number: 8345803
    Abstract: Systems and methodologies are described that facilitate dynamically allocating demodulation resources of a wideband receiver to provide improved demodulation of simultaneously received signals. Signal-to-noise ratio (SNR) and/or packet error rate (PER) can be measured for the plurality of carriers to determine which demodulators related to the carriers require more resources than others to demodulate signals at a specified signal quality. Where the SNR of a related carrier is high and/or PER is low, the demodulator can require fewer resources than where the SNR of a related carrier is low and/or PER is high. In this regard, the resources are dynamically allocated among the demodulators and reallocated where SNR/PER changes and/or additional resources are made available.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: January 1, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Gregory R. Lie, Abhay A. Joshi, Yu-Chuan G. Lin, Lijun Lin
  • Publication number: 20100086088
    Abstract: Systems and methodologies are described that facilitate dynamically allocating demodulation resources of a wideband receiver to provide improved demodulation of simultaneously received signals. Signal-to-noise ratio (SNR) and/or packet error rate (PER) can be measured for the plurality of carriers to determine which demodulators related to the carriers require more resources than others to demodulate signals at a specified signal quality. Where the SNR of a related carrier is high and/or PER is low, the demodulator can require fewer resources than where the SNR of a related carrier is low and/or PER is high. In this regard, the resources are dynamically allocated among the demodulators and reallocated where SNR/PER changes and/or additional resources are made available.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 8, 2010
    Applicant: QUALCOMM Incorporated
    Inventors: Gregory R. Lie, Abhay A. Joshi, Yu-Chuan G. Lin, Lijun Lin
  • Patent number: 7573849
    Abstract: Access to a variable rate multiple access system is controlled based upon a current loading. The current loading level is used to determine a transmission rate set point. The transmission rate set point may include a maximum transmission rate and a transmission probability. The transmission rate set point is passed to the remote unit which may access the system. A remote unit with data to send determines a desired transmission data rate. If the desire transmission data rate is equal to or greater than the maximum transmission data rate, the remote unit transmits at the maximum transmission data rate with a probability equal to the transmission probability.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: August 11, 2009
    Assignee: QUALCOMM Incorporated
    Inventors: Edward G. Tiedemann, Jr., Yu-Cheun Jou, Yu-Chuan G. Lin
  • Patent number: 6744749
    Abstract: A system is disclosed for use in a wireless communication system to provide an estimated pilot signal. The system includes a receiver and a front-end processing and despreading component in electronic communication with the receiver for despreading a CDMA signal. A pilot estimation component is in electronic communication with the front-end processing and despreading component for estimating an original pilot signal using a Wiener filter to produce a pilot estimate. A demodulation component is in electronic communication with the pilot estimation component and the front-end processing and despreading component for providing demodulated data symbols. The Wiener filter is configured by an offline filter determination process that calculates parameters of the Wiener filter to minimize the mean-square error.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: June 1, 2004
    Assignee: Qualcomm, Incorporated
    Inventors: Farrokh Abrishamkar, Brian K. Butler, Yu-Chuan G. Lin
  • Publication number: 20030227886
    Abstract: A system is disclosed for use in a wireless communication system to provide an estimated pilot signal. The system includes a receiver and a front-end processing and despreading component in electronic communication with the receiver for despreading a CDMA signal. A pilot estimation component is in electronic communication with the front-end processing and despreading component for estimating an original pilot signal using a Wiener filter to produce a pilot estimate. A demodulation component is in electronic communication with the pilot estimation component and the front-end processing and despreading component for providing demodulated data symbols. The Wiener filter is configured by an offline filter determination process that calculates parameters of the Wiener filter to minimize the mean-square error.
    Type: Application
    Filed: September 30, 2002
    Publication date: December 11, 2003
    Inventors: Farrokh Abrishamkar, Brian K. Butler, Yu-Chuan G. Lin