Patents by Inventor Edward Moore Cherry

Edward Moore Cherry 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).

  • Level-shift circuits and related methods
    Patent number: 6693489
    Abstract: A level shift circuit and method for level shifting the common-mode voltage of a power-supply-referenced circuit to the common-mode voltage of a ground-referenced circuit. The level shift circuit and method entails performing a common-mode level shifting of input complementary signals derived from the power-supply-referenced circuit to produce output complementary signals for the ground-referenced circuit. Because the level shifting is performed in a common manner (i.e. the level shift or voltage drop is common to both complementary signals), pulse-width distortion is substantially reduced if not eliminated. The level shift circuit includes a voltage drop device common to both sides of a differential pair to produce the desired level shift of the output complementary signals. Yet another embodiment relates to a multi-stage level shift circuit and method for level shifting in steps an input common-mode voltage to an output common-mode voltage.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: February 17, 2004
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Edward Moore Cherry, Christopher G. Martinez
  • Level-shift circuits and related methods
    Publication number: 20030020542
    Abstract: A level shift circuit and method for level shifting the common-mode voltage of a power-supply-referenced circuit to the common-mode voltage of a ground-referenced circuit. The level shift circuit and method entails performing a common-mode level shifting of input complementary signals derived from the power-supply-referenced circuit to produce output complementary signals for the ground-referenced circuit. Because the level shifting is performed in a common manner (i.e. the level shift or voltage drop is common to both complementary signals), pulse-width distortion is substantially reduced if not eliminated. The level shift circuit includes a voltage drop device common to both sides of a differential pair to produce the desired level shift of the output complementary signals. Yet another embodiment relates to a multi-stage level shift circuit and method for level shifting in steps an input common-mode voltage to an output common-mode voltage.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 30, 2003
    Inventors: Edward Moore Cherry, Christopher G. Martinez