Patents by Inventor Samuel A. Leslie

Samuel A. Leslie 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).

  • Data circuit for frequency modulating an oscillator
    Patent number: 4411005
    Abstract: Data signals which vary between first and second levels are applied to an operational amplifier by a timing signal produced in response to data signal transitions. The operational amplifier is connected to produce a nominal voltage in the absence of data signals, and to produce first and second voltages above and below the nominal voltage by equal amounts in response to the first and second data levels. The voltages so produced are used to control the frequency of an oscillator.
    Type: Grant
    Filed: December 21, 1981
    Date of Patent: October 18, 1983
    Assignee: General Electric Company
    Inventor: Samuel A. Leslie
  • Power on restart circuit
    Patent number: 4367422
    Abstract: A power on reset circuit providing a reset signal to a microprocessor-based system upon its initial power up and a reinitializing reset signal in response to low voltage power supply transients.
    Type: Grant
    Filed: October 1, 1980
    Date of Patent: January 4, 1983
    Assignee: General Electric Company
    Inventor: Samuel A. Leslie
  • Muting circuit
    Patent number: 4344175
    Abstract: A muting circuit detects data transitions during windows generated from received data, and counts the number of such transitions during the windows. A muting signal is produced in response to a predetermined count. If a transition occurs outside a window, the count is reset to zero, and an unmute signal is produced until the predetermined count is reached.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: August 10, 1982
    Assignee: General Electric Company
    Inventor: Samuel A. Leslie