Patents by Inventor Richard Gaughan

Richard Gaughan 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).

  • Telephone circuitry with power backup
    Patent number: 4653088
    Abstract: CPU based telephone circuitry allowing for enhanced telephone functions includes a battery backup. To minimize power drain from the battery, the battery only supplies limited circuitry required for limited telephone service without CPU support. To further limit power drain, power backup circuitry includes a first circuit limited to sensing of the hookswitch status and sensing of incoming calls and generation of a ringing sound. Based on the status of the hookswitch, additional amplifiers, dialers and the like required for the limited telephone service are then powered by the backup battery.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: March 24, 1987
    Assignee: Wang Laboratories, Inc.
    Inventors: Stephen C. Budd, Richard Gaughan