Patents by Inventor James P. Wohl

James P. Wohl 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: 5247700
    Abstract: A compact and unitary cellular/pager. The cellular/pager includes a cellular antenna for receiving UHF cellular and paging signals. The cellular/pager also includes a VHF paging antenna. Every paging signal is sent to a paging receiver. The paging receiver uses the same circuitry to process either the UHF or VHF page. This is accomplished by setting a voltage controlled oscillator (VCO) to one of two frequency ranges. The chosen frequency is either added or subtracted to the incoming signal in order to match a constant intermediate frequency. The resultant signal is demodulated and a bit rate is selected by a decoder, under the control of a microprocessor. Therefore, the paging receiver can choose a band, a channel and a bit rate. Cellular signals are sent to a cellular block. Cellular location information is utilized by the cellular/pager to form an internally updated roaming pager.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: September 21, 1993
    Assignee: Universal Cellular, Inc.
    Inventors: James P. Wohl, W. Edward Naugler, Jr., James Hendershot, Graham P. Lloyd, Erich B. Adams
  • Patent number: D327059
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: June 16, 1992
    Assignee: Universal Cellular, Inc.
    Inventors: Robin Chu, James P. Wohl