Patents by Inventor Clifford Biggers

Clifford Biggers 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).

  • IC input circuitry programmable for realizing multiple functions from a single input
    Patent number: 4721868
    Abstract: A single, programmable, multifunctional input circuit scheme for integrated circuit chips is disclosed. An input pin is provided with selectable input logic circuit blocks, each capable of providing an input signal to another circuit in the integrated circuit system architecture. The user of the chip is provided with means for programming said pin to select one of said logic circuit blocks, whereby each said pin has multifunction capability.
    Type: Grant
    Filed: September 23, 1986
    Date of Patent: January 26, 1988
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Barry S. Cornell, M. Clifford Biggers
  • Single-chip bi-polar sense amplifier for a data processing system using MOS memory
    Patent number: 4099266
    Abstract: A single-chip memory-sense amplifier for a data processing system. There is disclosed a sense amplifier (level converter) and bus driver for use in a data processing system, to receive signal inputs from main memory and to drive a memory bus connecting output of the sense amplifier to the CPU. This sense amplifier is intended for use with memory fabricated from N-channel MOS technology. The circuitry of the sense amplifier is fabricated from bi-polar technology and formed on a single monolithic integrated circuit chip. The biasing scheme employed within the circuitry of the sense amplifier provides reliable operation, by making the amplifier relatively insensitive to power supply variations.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: July 4, 1978
    Assignee: Data General Corporation
    Inventor: Clifford Biggers