Patents by Inventor WingIp Tam

WingIp Tam 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 frequency scan in Narrow Band—Internet of Things (NB-IoT) systems
    Patent number: 10455485
    Abstract: Techniques for efficient and accurate frequency scans in Narrow Band-Internet of Things (NB-IoT) systems are provided. In an example, a user equipment (UE) searches for a cell on at least one of a plurality of frequency rasters based on a multi-stage search technique, wherein each stage of the multi-stage search searches the at least one frequency raster based on a different set of search parameters. The UE detects a cell on at least one of the frequency rasters based on the searching.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: October 22, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Navid Abedini, Chun-Hao Hsu, Amit Mathur, Sathyadev Venkata Uppala, Wingip Tam
  • METHOD AND APPARATUS FOR FREQUENCY SCAN IN NARROW BAND - INTERNET OF THINGS (NB-IOT) SYSTEMS
    Publication number: 20180317161
    Abstract: Techniques for efficient and accurate frequency scans in Narrow Band-Internet of Things (NB-IoT) systems are provided. In an example, a user equipment (UE) searches for a cell on at least one of a plurality of frequency rasters based on a multi-stage search technique, wherein each stage of the multi-stage search searches the at least one frequency raster based on a different set of search parameters. The UE detects a cell on at least one of the frequency rasters based on the searching.
    Type: Application
    Filed: April 25, 2018
    Publication date: November 1, 2018
    Inventors: Navid ABEDINI, Chun-Hao HSU, Amit MATHUR, Sathyadev Venkata UPPALA, Wingip TAM
  • Dual modulation tuning in systems that exhibit self-disturbance effects
    Publication number: 20030179622
    Abstract: This invention provides approaches for dual-modulation tuning in systems that exhibit self-disturbance. In one embodiment, a dual-bit-mapping scheme is used so that system parameters are set according to one bit-mapping scheme when self-disturbance is present and to another bit-mapping scheme when self-disturbance is not present in the system. Self-disturbance may include signals that arise from echoes or near-end cross-talk (NEXT).
    Type: Application
    Filed: February 21, 2003
    Publication date: September 25, 2003
    Inventors: Ehud Langberg, Peter Kleewein, WingIp Tam, Feng Ouyang, Laurent Pierrugues, Oliver Moreno, Patrick Duvaut