Patents by Inventor Larry R. Leaf

Larry R. Leaf 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).

  • Apparatus and method related to communicating analog signals between different local access transport areas
    Patent number: 4731823
    Abstract: To convert an analog communication between two local access transport areas (LATA's) from one charged at multiple inter-LATA rates to one charged at a single inter-LATA rate plus lower intra-LATA rates, the communication is concentrated within the remote LATA by installing a remote demarcation point connected to a central office and by installing a master station demarcation point and the master station demarcation point are interfaced by an analog concentrator. The analog concentrator couples the analog communication signals by appropriately amplifying them without digital conversion or processing.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: March 15, 1988
    Assignee: COMAC Financial Services
    Inventors: Billy D. Warner, Larry R. Leaf