Patents by Inventor Steven Yoon

Steven Yoon 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 to optimize off-frequency pilot searching by wireless mobile station
    Patent number: 7623861
    Abstract: A wireless mobile telephone (400) is operated so as manage the performance of “off-frequency searches,” that is, searches for base station pilot signals that differ in frequency from the pilot signals in the mobile station's active set. Whenever frequency searching is performed (such as responsive to emerging from a reduced-power sleep mode), the mobile station performs on-frequency pilot signal searching (902) upon a prescribed active set frequency. Only if a prescribed off-frequency searching condition (903-908) is satisfied, the mobile station additionally performs off-frequency pilot signal searching (912) upon one or more neighboring base stations' frequencies.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: November 24, 2009
    Assignee: QUALCOMM Incorporated
    Inventors: Abhay Arvind Joshi, Arthur James Neufeld, Steven Yoon, Thunyachate Ekvetchavit
  • Method and apparatus to optimize off-frequency pilot searching by wireless mobile station
    Publication number: 20040203838
    Abstract: A wireless mobile telephone (400) is operated so as manage the performance of “off-frequency searches,” that is, searches for base station pilot signals that differ in frequency from the pilot signals in the mobile station's active set. Whenever frequency searching is performed (such as responsive to emerging from a reduced-power sleep mode), the mobile station performs on-frequency pilot signal searching (902) upon a prescribed active set frequency. Only if a prescribed off-frequency searching condition (903-908) is satisfied, the mobile station additionally performs off-frequency pilot signal searching (912) upon one or more neighboring base stations' frequencies.
    Type: Application
    Filed: December 5, 2002
    Publication date: October 14, 2004
    Inventors: Abhay Arvind Joshi, Arthur James Neufeld, Steven Yoon, Thunyachate Ekvetchavit
  • System and method for sending a supplemental channel request message in a wireless communication device
    Patent number: 6757541
    Abstract: A mobile station (16) may include a terminal equipment (10), a mobile station modem (14), a mobile telephone (12), and other features. A CPU (52) selectively generates control signals to efficiently control transmission of supplemental channel request messages (SCRM) by the mobile station (16). In one embodiment, transmission of a SCRM in response to a predetermined event is prohibited until a fixed period of time has elapsed since the last transmission of an SCRM in response to the predetermined event.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: June 29, 2004
    Assignee: QUALCOMM Incorporated
    Inventors: Baaziz Achour, Arjun Khare, Ravishanker Mudigonda, Steven Yoon
  • Power control outer loop for communication channels with discontinuous transmission (DTX)
    Patent number: 6731606
    Abstract: Novel techniques are disclosed for adjusting a power control setpoint to compensate for imperfect signal detection in a communication channel capable of discontinuous transmission (DTX). The power control setpoint is compensated for false detections by adjusting the power control setpoint by a dynamically determined setpoint back off amount upon detection of a Good frame. The amount of the setpoint back off is a function of the measured signal quality of the detected Good frame and the number of Erasure indications received immediately preceding the Good frame indication.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: May 4, 2004
    Assignee: Qualcomm Incorporated
    Inventors: Yu-Chuan Lin, Keith W. Saints, Steven Yoon
  • Power control outer loop for communication channels with discontinuous transmission (DTX)
    Publication number: 20030142632
    Abstract: Novel techniques are disclosed for adjusting a power control setpoint to compensate for imperfect signal detection in a communication channel capable of discontinuous transmission (DTX). The power control setpoint is compensated for false detections by adjusting the power control setpoint by a dynamically determined setpoint back off amount upon detection of a Good frame. The amount of the setpoint back off is a function of the measured signal quality of the detected Good frame and the number of Erasure indications received immediately preceding the Good frame indication.
    Type: Application
    Filed: January 31, 2002
    Publication date: July 31, 2003
    Inventors: Yu-Chuan Lin, Keith W. Saints, Steven Yoon
  • System and method for sending a supplemental channel request message in a wireless communication device
    Publication number: 20030060208
    Abstract: A mobile station (16) may include a terminal equipment (10), a mobile station modem (14), a mobile telephone (12), and other features. A CPU (52) selectively generates control signals to efficiently control transmission of supplemental channel request messages (SCRM) by the mobile station (16). In one embodiment, transmission of a SCRM in response to a predetermined event is prohibited until a fixed period of time has elapsed since the last transmission of an SCRM in response to the predetermined event.
    Type: Application
    Filed: August 23, 2002
    Publication date: March 27, 2003
    Inventors: Baaziz Achour, Arjun Khare, Ravishanker Mudigonda, Steven Yoon