Patents by Inventor Cheng-Ming Liang

Cheng-Ming Liang 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).

  • Interference-resistant wireless audio system and the method thereof
    Patent number: 7383047
    Abstract: An interference-resistant method for a wireless audio system capable of transforming an audio signal into an RF signal includes transforming the audio signal into a PCM signal, appending a first control signal to the PCM signal, and modulating the PCM signal with the first control signal into an analog base-band signal. The method further includes up-converting the analog base-band signal into the RF signal and transmitting the RF signal into the air in a transmitting mode and receiving the RF signal in the air during a receiving mode. The channel is switched to another one upon determining that a Received Signal Strength Indicator (RSSI) level of the RF signal is greater than a first predetermined value a plurality of times within a predetermined time interval.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: June 3, 2008
    Assignee: Syncomm Technology Corp.
    Inventors: Cheng-Ming Liang, Yi-Hsiu Huang, Jui-Jung Huang, Long-Term Leu, Chia-Hsin Lin
  • INTERFERENCE-RESISTANT WIRELESS AUDIO SYSTEM AND THE METHOD THEREOF
    Publication number: 20070117512
    Abstract: An interference-resistant method for a wireless audio system capable of transforming an audio signal into an RF signal includes transforming the audio signal into a PCM signal, appending a first control signal to the PCM signal, and modulating the PCM signal with the first control signal into an analog base-band signal. The method further includes up-converting the analog base-band signal into the RF signal and transmitting the RF signal into the air in a transmitting mode and receiving the RF signal in the air during a receiving mode. The channel is switched to another one upon determining that a Received Signal Strength Indicator (RSSI) level of the RF signal is greater than a first predetermined value a plurality of times within a predetermined time interval.
    Type: Application
    Filed: January 8, 2007
    Publication date: May 24, 2007
    Inventors: Cheng-Ming Liang, Yi-Hsiu Huang, Jui-Jung Huang, Long-Term Leu, Chia-Hsin Lin
  • Interference-resistant wireless audio system and the method thereof
    Patent number: 7181232
    Abstract: An interference-resistant wireless audio system includes a transceiver for transforming an audio signal into an RF signal, and a receiver for receiving RF signals in the air. The transceiver has an audio signal receiver, an audio data format converter, a frame and coding unit, a modulation module, an RF transceiver, a receiving/transmitting switch controller, an RF signal detector, and a channel switch controller electrically connected to the RF signal detector for controlling the RF transceiver to switch the used channel to another one after receiving a switch signal generated by the RF signal detector.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: February 20, 2007
    Assignee: Syncomm Technology Corp.
    Inventors: Wen-Sheng Lin, Cheng-Ming Liang, Yi-Hsiu Huang, Lin-Tien Mei, Jui-Jung Huang, Chih-Sheng Chou
  • INTERFERENCE-RESISTANT WIRELESS AUDIO SYSTEM AND THE METHOD THEREOF
    Publication number: 20060121931
    Abstract: An interference-resistant wireless audio system includes a transceiver for transforming an audio signal into an RF signal, and a receiver for receiving RF signals in the air.
    Type: Application
    Filed: March 31, 2005
    Publication date: June 8, 2006
    Inventors: Wen-Sheng Lin, Cheng-Ming Liang, Yi-Hsiu Huang, Lin-Tien Mei, Jui-Jung Huang, Chih-Sheng Chou