Patents by Inventor Larry R. Martin

Larry R. Martin 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).

  • Low noise frequency synthesizer
    Patent number: 4851787
    Abstract: A frequency divider circuit for use in a programmable frequency synthesizer is disclosed and comprises a dual modulus prescaler, a fixed divider, a programmable counter, and a programmable fractional divider. The feedback signal is generated directly by the dual modulus prescaler, rather than by circuitry downstream from the dual modulus prescaler.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: July 25, 1989
    Assignee: Avantek, Inc.
    Inventor: Larry R. Martin
  • Apparatus for spectrum analysis of an electrical signal
    Patent number: 4257104
    Abstract: An input signal is mixed with sampling signals from oscillators which vary the frequency of the sampling signal from a first frequency to a second frequency. The resulting Intermediate Frequency (IF) signal is processed and digital values are stored in a memory in response thereto. Waveforms are then displayed which correspond to these frequency and amplitude values. Various input and display circuits facilitate the display and interpretation of these waveforms.
    Type: Grant
    Filed: August 10, 1978
    Date of Patent: March 17, 1981
    Assignee: Hewlett-Packard Company
    Inventors: Larry R. Martin, Michael S. Marzalek