Patents by Inventor Lilbert S. Hawkins

Lilbert S. Hawkins 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).

  • Publication number: 20040071292
    Abstract: An automated prefix dialing system is disclosed to allow a subscriber/user to automatically insert a predetermined prefix dialing code in certain outgoing telephone call situations. The system is electrically disposed between the telephone company's central office circuit and the subscriber's circuit. The system preferably comprises six sub-circuits: DC power path circuit (off-hook sensor circuit), shadow-ring detector circuit, isolation circuit, DTMF receiver circuit, DTMF generator circuit, and micro controller circuit. When not in use, no power is used by the system. The DC power path circuit, provides power received from the central office line to the various circuits and components of the system when the subscriber's phone is taken off-hook. Off-hook sensor circuitry detects when the telephone has been lifted either in response to an incoming call or to initiate an outgoing call.
    Type: Application
    Filed: June 16, 2003
    Publication date: April 15, 2004
    Inventors: Claude O. Simpson, Lilbert S. Hawkins
  • Patent number: 5117173
    Abstract: A battery cycle counter comprises a rechargeable battery having supply and charger contacts, a circuit for providing an input signal when the rechargeable battery is being charged, and a counter powered by the battery and responsive to the input signal which increments a cycle count. The counter has input and output ports. An analog output circuit coupled to the counter output ports provides a unique analog output signal indicative of said cycle count.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: May 26, 1992
    Assignee: Motorola, Inc.
    Inventors: Elio J. Oliva, Vernon Meadows, Lilbert S. Hawkins, III