Patents by Inventor Jonathon Y. C. Cheah

Jonathon Y. C. Cheah 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: 6901271
    Abstract: A technique for determining the last digit of a dialed sequence. Different interdigit time-out periods are pre-assigned to each digit received. If the time-out period expires, it is considered that a full complement of digits has been received, whereupon the received digits are then transferred toward the destination.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: May 31, 2005
    Assignee: Uniden America Corporation
    Inventors: Jonathon Y. C. Cheah, Zhiping Hu
  • Patent number: 6788953
    Abstract: A telephone communication system having a cordless telephone operating in conjunction with a cellular transceiver. A subscriber line interface circuit (SLIC) is controlled by a microprocessor in the cellular transcriber. The SLIC can be controlled to provide standard telephone service to other telephone sets, and includes circuits for testing for foreign voltages on the telephone lines prior to providing SLIC service. Standard RJ-11 jacks are utilized for coupling the telephone sets to the communication system to provide standard telephone service by way of the cellular network.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: September 7, 2004
    Assignee: Uniden America Corporation
    Inventors: Jonathon Y. C. Cheah, Zhiping Hu