Patents by Inventor Shih Jih Yao

Shih Jih Yao 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).

  • Wireless communications system
    Patent number: 7792499
    Abstract: The present invention provides a wireless communications system comprising a first radio transceiver configured to communicate on a first radio channel, a second radio transceiver configured to communicate on a second radio channel, a first base transceiver unit (BTU) configured to communicate with the first radio transceiver, a second BTU configured to communicate with the second radio transceiver, and a client transceiver unit (CTU) configured to communicate with both the first BTU and the second BTU. The CTU is thereby configured to communicate on the first radio channel via the first radio transceiver and the first BTU. The CTU is also configured to communicate on the second radio channel via the second radio transceiver and the second BTU. The CTU comprises at least one speaker for enabling a user to listen to communications on the first and second radio channels concurrently.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: September 7, 2010
    Assignee: St. Electronics (Info-Comm Systems) Pte. Ltd.
    Inventors: Ming Kang Chen, Chin Kang Lee, Yew Kwee Lew, Shih Jih Yao, Siew Kheen Lee
  • Wireless communications system
    Publication number: 20090191822
    Abstract: The present invention provides a wireless communications system comprising a first radio transceiver configured to communicate on a first radio channel, a second radio transceiver configured to communicate on a second radio channel, a first base transceiver unit (BTU) configured to communicate with the first radio transceiver, a second BTU configured to communicate with the second radio transceiver, and a client transceiver unit (CTU) configured to communicate with both the first BTU and the second BTU. The CTU is thereby configured to communicate on the first radio channel via the first radio transceiver and the first BTU. The CTU is also configured to communicate on the second radio channel via the second radio transceiver and the second BTU. The CTU comprises at least one speaker for enabling a user to listen to communications on the first and second radio channels concurrently.
    Type: Application
    Filed: January 9, 2004
    Publication date: July 30, 2009
    Inventors: Ming Kang Chen, Chin Kang Lee, Yew Kwee Lew, Shih Jih Yao, Siew Kheen Lee
  • Dual mode ISDN S/U interface converter
    Patent number: 7016374
    Abstract: A dual mode ISDN S/U interface converter and a network arrangement are provided. The dual mode ISDN S/U interface converter is capable of selectively operating in either line terminator (LT) or work terminator (NT) modes by an adjustment of jumpers or other electronic switches. The ISDN S/U interface converter also provides a selectable and reversible direction of sync flow over a common path, with a common sync circuit, common control, and common data bus. With the dual mode capability of the ISDN S/U converter, a system integrator can use a single type of equipment for insertion between an ISDN switch and a multiplexer.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: March 21, 2006
    Assignee: CET Technologies PTE LTD
    Inventors: Wei Qiang Zhang, Shih Jih Yao, Yeow Fong Tham
  • Dual mode isdn s/u interface converter
    Publication number: 20040004976
    Abstract: A dual mode ISDN S/U interface converter and a network arrangement are provided. The dual mode ISDN S/U interface converter is capable of selectively operating in either line terminator (LT) or work terminator (NT) modes by an adjustment of jumpers or other electronic switches. The ISDN S/U interface converter also provides a selectable and reversible direction of sync flow over a common path, with a common sync circuit, common control, and common data bus. With the dual mode capability of the ISDN S/U converter, a system integrator can use a single type of equipment for insertion between an ISDN switch and a multiplexer.
    Type: Application
    Filed: June 4, 2003
    Publication date: January 8, 2004
    Inventors: Wei Qiang Zhang, Shih Jih Yao, Yeow Fong Tham