Patents by Inventor Tom Yun Sang Young

Tom Yun Sang Young 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: 8571505
    Abstract: A technique for controlling operation of a communication subsystem is described. The subsystem is set to a first wake-up mode of operation, during which a state value from the system is read and stored in memory. The subsystem is then set to a sleep mode of operation after the first wake-up mode of operation, and to a second wake-up mode of operation after the sleep mode of operation. The stored state value is then read from the memory, where the subsystem is set to operate based on the read state value during a warm-up period of the second wake-up mode of operation.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: October 29, 2013
    Assignee: Blackberry Limited
    Inventors: Xin Jin, Qingzhong Jiao, Tom Yun Sang Young
  • Publication number: 20120322397
    Abstract: A technique for controlling operation of a communication subsystem is described. The subsystem is set to a first wake-up mode of operation, during which a state value from the system is read and stored in memory. The subsystem is then set to a sleep mode of operation after the first wake-up mode of operation, and to a second wake-up mode of operation after the sleep mode of operation. The stored state value is then read from the memory, where the subsystem is set to operate based on the read state value during a warm-up period of the second wake-up mode of operation.
    Type: Application
    Filed: August 29, 2012
    Publication date: December 20, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Xin Jin, Qingzhong Jiao, Tom Yun Sang Young
  • Patent number: 8275335
    Abstract: A communication device reads and stores in memory a state value which was utilized for operating a communication subsystem during a wake-up period of the communication subsystem. The device then causes the communication subsystem to enter into a sleep mode. Subsequently, the device causes the communication subsystem to exit from the sleep mode and enter into a current wake-up period. The stored state value is provided to the communication subsystem for use in operating the communication subsystem during a warm-up period of the current wake-up period. After the warm-up period of the current wake up period, a current state value is provided from a state controller to the communication subsystem for use in operating the communication subsystem during the wake up period. The current state value is determined based on a detected signal level of a current signal received in the communication subsystem.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: September 25, 2012
    Assignee: Research In Motion Limited
    Inventors: Xin Jin, Qingzhong Jiao, Tom Yun Sang Young
  • Publication number: 20120142299
    Abstract: A communication device reads and stores in memory a state value which was utilized for operating a communication subsystem during a wake-up period of the communication subsystem. The device then causes the communication subsystem to enter into a sleep mode. Subsequently, the device causes the communication subsystem to exit from the sleep mode and enter into a current wake-up period. The stored state value is provided to the communication subsystem for use in operating the communication subsystem during a warm-up period of the current wake-up period. After the warm-up period of the current wake up period, a current state value is provided from a state controller to the communication subsystem for use in operating the communication subsystem during the wake up period. The current state value is determined based on a detected signal level of a current signal received in the communication subsystem.
    Type: Application
    Filed: December 1, 2011
    Publication date: June 7, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Xin Jin, Qingzhong Jiao, Tom Yun Sang Young
  • Patent number: 8116712
    Abstract: Techniques for controlling a gain state of a wireless receiver involve causing the wireless receiver to enter into a sleep mode; causing the wireless receiver to exit from the sleep mode and enter into a wake-up period; providing, via a multiplexer, a stored gain control state value to the wireless receiver for use during a warm-up period of the wake-up period, the stored gain control state value being previously read from a gain controller during a previous wake-up period of the wireless receiver; and after the warm-up period of the wake up period, providing, via the multiplexer, a current gain control state value from the gain controller to the wireless receiver for use during the wake up period, the current gain control state value being based on a signal level of a currently-received signal in the wireless receiver.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: February 14, 2012
    Assignee: Research In Motion Limited
    Inventors: Xin Jin, Qingzhong Jiao, Tom Yun Sang Young
  • Publication number: 20110053542
    Abstract: Techniques for controlling a gain state of a wireless receiver involve causing the wireless receiver to enter into a sleep mode; causing the wireless receiver to exit from the sleep mode and enter into a wake-up period; providing, via a multiplexer, a stored gain control state value to the wireless receiver for use during a warm-up period of the wake-up period, the stored gain control state value being previously read from a gain controller during a previous wake-up period of the wireless receiver; and after the warm-up period of the wake up period, providing, via the multiplexer, a current gain control state value from the gain controller to the wireless receiver for use during the wake up period, the current gain control state value being based on a signal level of a currently-received signal in the wireless receiver.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 3, 2011
    Applicant: Research In Motion Limited
    Inventors: Xin Jin, Qingzhong Jiao, Tom Yun Sang Young
  • Patent number: 7853230
    Abstract: The settling time of a wireless receiver is reduced by providing a previously utilized gain control state value to an amplifier of a receiver front end during a warm-up portion of a wake-up period of the wireless receiver which follows a sleep period. One illustrative method includes the steps of receiving a notification signal which indicates that the wireless receiver is to be placed in a sleep mode, reading a gain control state value from a gain controller based on receiving the notification signal, storing the gain control state value in memory, providing the stored gain control state value from the memory to the wireless receiver during a warm-up period of a second wake-up period following the first wake-up period, and providing a gain control state value from the gain controller to the wireless receiver based on a signal level of a currently received signal of the wireless receiver after the warm-up period.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: December 14, 2010
    Assignee: Research In Motion Limited
    Inventors: Xin Jin, Qingzhong Jiao, Tom Yun Sang Young
  • Publication number: 20090068972
    Abstract: The settling time of a wireless receiver is reduced by providing a previously utilized gain control state value to an amplifier of a receiver front end during a warm-up portion of a wake-up period of the wireless receiver which follows a sleep period. One illustrative method includes the steps of receiving a notification signal which indicates that the wireless receiver is to be placed in a sleep mode, reading a gain control state value from a gain controller based on receiving the notification signal, storing the gain control state value in memory, providing the stored gain control state value from the memory to the wireless receiver during a warm-up period of a second wake-up period following the first wake-up period, and providing a gain control state value from the gain controller to the wireless receiver based on a signal level of a currently received signal of the wireless receiver after the warm-up period.
    Type: Application
    Filed: November 10, 2008
    Publication date: March 12, 2009
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Xin Jin, Qingzhong Jiao, Tom Yun Sang Young
  • Patent number: 7463872
    Abstract: The settling time of a wireless receiver is reduced by providing a previously utilized gain control state value to a low noise amplifier (LNA) of a receiver front end during a warm-up portion of a wake-up period of the wireless receiver which follows a sleep period. One illustrative method includes the steps of receiving a notification signal which indicates that the wireless receiver is to be placed in a sleep mode, reading a gain control state value from a gain controller based on receiving the notification signal, storing the gain control state value in memory, providing the stored gain control state value from the memory to the wireless receiver during a warm-up period of a second wake-up period following the first wake-up period, and providing a gain control state value from the gain controller to the wireless receiver based on a signal level of a currently received signal of the wireless receiver after the warm-up period.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: December 9, 2008
    Assignee: Research In Motion Limited
    Inventors: Xin Jin, Qingzhong Jiao, Tom Yun Sang Young