Patents by Inventor Kirk Kuokuang Chang

Kirk Kuokuang Chang 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: 6532222
    Abstract: Demodulator assignment logic is provided that confirms the presence and quality of a multipath before assigning a parallel demodulator to that multipath. Multipath presence and quality are confirmed when at least two power measurements of a multipath at least equal a selectable power threshold. Before permitting demodulated data from an assigned demodulator to be processed, demodulator assignment logic further reconfirms the presence and quality of a multipath via another more reliable power measurement that at least equals another selectable power threshold.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: March 11, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Kiran Meghashyam Rege, Krishna Balachandran, Kirk Kuokuang Chang, Zhendong Cao, Abdulkadir Dinc, Yogendra Champaklal Shah
  • Patent number: 6052566
    Abstract: A wireless receiver includes a variable attenuator, a signal-to-noise ratio (SNR estimator), and a received signal strength indicator (RSSI) level detector. The RSSI level of the received signal is used as a primary criterion on setting the attenuator status. Once the attenuator is set based upon the RSSI readings, an SNR check is made to determine the possible presence of IM. Then, further adjustment on the attenuator status is made according to the SNR check.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: April 18, 2000
    Assignee: Lucent Technologies Inc.
    Inventors: Victor Alexander Abramsky, Krishna Balachandran, Kirk Kuokuang Chang, Kiran M. Rege