Patents by Inventor John Lappington

John Lappington 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).

  • System for distributing radio telephone signals over a cable television network
    Patent number: 5381459
    Abstract: A system for distributing remote telephone traffic between a base station and remote antenna site is disclosed. The base station and remote antenna sites are connected via a cable television network. The base station receives from a public telephone network parallel channels of outbound voice signals for radio telephones operating within the cellular areas of the remote antenna sites. The base station will digitize and time compress each of these outbound telephone signals, and insert them in a transmit frame. The transmit frame is modulated on a subcarrier and applied to the cable television network. A plurality of remote sites are connected to the cable television network and receive and rebroadcast digitized voice signals to radio telephones operating within their cellular areas. Inbound serial channel data received from a radio telephone is inserted in a serial receive data frame.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: January 10, 1995
    Assignee: Cable Television Laboratories, Inc.
    Inventor: John Lappington