Patents by Inventor Lee J. Schwartz

Lee J. Schwartz 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).

  • Battery charger
    Patent number: 4767977
    Abstract: The battery charger includes a slope detector which responds to the battery voltage of the battery being charged, to generate a peak indicating signal, when the voltage decreases following the peak charging voltage of the battery. A peak hold device responds to the peak indicating signal to cause the charger to switch abruptly from a high charge mode to a low trickle charge mode.
    Type: Grant
    Filed: January 8, 1987
    Date of Patent: August 30, 1988
    Assignee: HM Electronics, Inc.
    Inventors: Kenneth R. Fasen, Kim R. Rogers, Lee J. Schwartz
  • Compandorized system clipping suppressing arrangement
    Patent number: 4754230
    Abstract: The clipping suppression arrangement for a compandorized communication system, includes a limiter peak level detector for causing the gain of an input amplifier to be reduced quickly when a compressed output is driven toward a clipping output condition.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: June 28, 1988
    Assignee: HM Electronics, Inc.
    Inventors: Lee J. Schwartz, Michael A. Williams