Patents by Inventor F. A. Wissel

F. A. Wissel 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: 5418445
    Abstract: A switching circuit, comprising a first input for receiving power from an external power supply; a second input for receiving power for rapid charging a battery; means for selectively coupling to a power output for driving a device at least one of such power from the external power supply and power from the battery; and means for coupling such power for rapid charging a battery to the battery at the same time such power from the external power supply is coupled to the power output.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: May 23, 1995
    Assignee: Tele Digital Development, Inc.
    Inventors: Martin Alpert, David F. Wissel
  • Patent number: 4290143
    Abstract: A binary encoded data transmission system wherein a binary data bit of a first value is represented by a first predetermined multi-bit binary Barker word and a binary data bit of a second value is represented by a second multi-bit binary Barker word, the bits in like positions in said first and second words having complementary binary values. A transmitter transmits preselected encoded data words in the aforementioned format and a receiver receives such words for decoding data. A selective call system is provided utilizing Barker/Barker complement encoded words as assigned addresses.
    Type: Grant
    Filed: April 19, 1979
    Date of Patent: September 15, 1981
    Assignee: Cincinnati Electronics Corporation
    Inventors: F. A. Wissel, D. A. Kiliman
  • Patent number: 4267591
    Abstract: A suppressed carrier signal is offset quadrature phase shift key modulated so the reference carrier phase is stepped 90.degree. in the same direction in synchronism with sequential bits of a serial data stream and is further bi-phase modulated in response to the binary data source having first or second binary values. A coherent receiver responds to the suppressed carrier signal to establish an equivalent sequence of stepping reference phases at the carrier frequency. The reference phases synchronously rotate in 90.degree. increments in the same direction as the suppressed carrier reference, being permitted a four-fold initial phase ambiguity (0.degree., 90.degree., 180.degree., and 270.degree.). The rotating reference phase is compared in a bi-phase manner with the appropriate component of the suppressed carrier signal to derive sequential d.c. polarities indicative of the binary bit values during the sequential binary data bits.
    Type: Grant
    Filed: April 17, 1979
    Date of Patent: May 12, 1981
    Assignee: Cincinnati Electronics Corporation
    Inventors: F. A. Wissel, D. A. Kiliman