Patents by Inventor Chia-Pang Yen

Chia-Pang Yen 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).

  • METHOD AND APPARATUS FOR CALIBRATION AND CHANNEL STATE FEEDBACK TO SUPPORT TRANSMIT BEAMFORMING IN A MIMO SYSTEM
    Publication number: 20070206504
    Abstract: A method and apparatus for calibration and channel state feedback to support transmit beamforming in a multiple-input multiple-output (MIMO) system are disclosed. For radio frequency (RF) calibration, a first station (STA) sends a calibration request to a second STA, and the second STA sends a sounding packet to the first STA. The first STA receives the sounding packet, performs at least one channel measurement and performs calibration based on the channel measurement. For channel state feedback, the first STA sends a channel state feedback request to the second STA. The second STA sends a sounding packet to the first STA. The first STA receives the sounding packet and performs at least one channel measurement with the sounding packet. The first STA then calculates a steering matrix for transmit beamforming based on the channel measurement.
    Type: Application
    Filed: March 1, 2007
    Publication date: September 6, 2007
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Chang-Soo Koo, Arty Chandra, Peter Voltz, Chia-Pang Yen, Jin Wang, Robert Olesen