Patents by Inventor Boon Ghee Ting

Boon Ghee Ting 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: 7710097
    Abstract: There is provided a power supply for an electrical device operable in active mode and in standby mode. The power supply comprises a transformer having a primary winding on the primary side and a secondary winding on the secondary side. The primary winding is connectable to an AC voltage supply and is arranged to comprise N turns when the electrical device is in active mode and more than N turns when the electrical device is in standby mode. Circuitry on the secondary side is arranged to provide an output voltage for the electrical device during active mode.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: May 4, 2010
    Assignee: Creative Technology Ltd
    Inventors: Jun Makino, Boon Ghee Ting
  • Publication number: 20080258703
    Abstract: There is provided a power supply for an electrical device operable in active mode and in standby mode. The power supply comprises a transformer having a primary winding on the primary side and a secondary winding on the secondary side. The primary winding is connectable to an AC voltage supply and is arranged to comprise N turns when the electrical device is in active mode and more than N turns when the electrical device is in standby mode. Circuitry on the secondary side is arranged to provide an output voltage for the electrical device during active mode.
    Type: Application
    Filed: December 6, 2006
    Publication date: October 23, 2008
    Applicant: CREATIVE TECHNOLOGY LTD
    Inventors: Jun Makino, Boon Ghee Ting
  • Patent number: 7382184
    Abstract: An amplifier system comprises a first amplifier arranged to receive an input signal and a second amplifier arranged to receive a proportion of the input signal. A first potential divider is arranged to receive the output signal of the second amplifier and to feed a proportion of the output signal to the first amplifier. The first amplifier is arranged to subtract the proportion of the output signal of the second amplifier from the input signal to produce a difference signal for amplification by the first amplifier. There is also disclosed a method of amplifying a signal.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: June 3, 2008
    Assignee: Creative Technology Ltd
    Inventors: Jun Makino, Boon Ghee Ting
  • Patent number: 7116168
    Abstract: A power multiplier system for an amplifier comprises a power multiplier control stage, an amplifier stage and a first switching stage connectable to the power multiplier control stage. The amplifier stage is connectable to the power multiplier control stage. The power multiplier system has a first output terminal and a second output terminal, the amplifier stage is connectable to the second output terminal for driving a load connectable between the first and second output terminals. The first switching stage is connectable to the first output terminal to apply a switchable DC voltage level to the first output terminal. There is also disclosed a method of amplifying the power output of an amplifier system.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: October 3, 2006
    Assignee: Creative Technology Ltd
    Inventors: Jun Makino, Boon Ghee Ting
  • Patent number: 7106135
    Abstract: An amplifier system comprises an amplifier, a comparator connectable to the amplifier to compare an incoming signal with a number of reference potentials. A switching stage is controlled by the output of the comparator and arranged to select a voltage level to be applied to one side of a load, such as a loudspeaker system. A subtractor is included to subtract from the incoming signal a percentage of the selected voltage level to be applied to the load. The amplifier receives the output signal of the subtractor, amplifies that signal and applies it to a second side of the load. There is also disclosed a method for amplifying a signal.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: September 12, 2006
    Assignee: Creative Technology Ltd
    Inventors: Jun Makino, Boon Ghee Ting