Patents by Inventor Steven H. Karban

Steven H. Karban 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: 4749884
    Abstract: An improved driver interface circuit for interfacing between low voltage, low drive capability logic signals and large capacitive loads requiring high speed, high voltage logic signals. The improvement comprising the use of the logic input signal to power gate a high level buffer contained in the driver and thereby minimize the power consumption during inactive periods.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: June 7, 1988
    Assignee: Unisys Corporation
    Inventors: Steven H. Karban, Cleon L. Hennen
  • Patent number: 4726025
    Abstract: A timing generator and verifier is provided in which a PROM stores the timing constants that are employed by the generator. An address counter, which is driven by a clock timer, cycles through an associated portion of the PROM to provide a sequence of output signals which represent timing for a particular mode. If a different mode is selected, the address counter selects a different sequence of output bits. During Normal mode the address counter operates on a cyclic basis driven by a fixed frequency free running master clock. In Verify mode the address counter is stepped by the Host computer. The outputs of the PROM are coupled through a buffer and logic section, where the outputs may be modified before being coupled to an adder which accumulates a checksum based on the outputs of all of the bits for a particular selected timing.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: February 16, 1988
    Assignee: Sperry Corporation
    Inventors: Katherine A. Splett, Steven H. Karban, Gerald L. Brown
  • Patent number: 4376874
    Abstract: Speech compaction/replay apparatus for real time monitoring speech and filtering out periods of relative slence from a recording of the speech. The recording also containing synchronization and time code information for ensuring that on replay and in terms of real time the audio output will essentially replicates the analog speech input. The apparatus and technique minimizing the amount of storage media required to store the speech.
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: March 15, 1983
    Assignee: Sperry Corporation
    Inventors: Steven H. Karban, James V. Drexler, Cleon L. Hennen
  • Patent number: RE33461
    Abstract: A timing generator and verifier is provided in which a PROM stores the timing constants that are employed by the generator. An address counter, which is driven by a clock timer, cycles through an associated portion of the PROM to provide a sequence of output signals which represent timing for a particular mode. If a different mode is selected, the address counter selects a different sequence of output bits. During Normal mode the address counter operates on a cyclic basis driven by a fixed frequency free running master clock. In Verify mode the address counter is stepped by the Host computer. The outputs of the PROM are coupled through a buffer and logic section, where the outputs may be modified before being coupled to an adder which accumulates a checksum based on the outputs of all of the bits for a particular selected timing.
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: November 27, 1990
    Assignee: Unisys Corporation
    Inventors: Katherine A. Splett, Steven H. Karban, Gerald L. Brown