Patents by Inventor Michael J. Bergman

Michael J. Bergman 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).

  • Field-programmable device with buffer between programmable circuit
    Patent number: 4783763
    Abstract: A field-programmable device contains a buffer (20) located between a pair of programmable circuits (14 and 16) along a column (10) connecting the circuits. The buffer provides increased current to the column portion connected to one of the circuits (16) without increasing the current supply requirements for the column portion connected to the other circuit (14). This permits the device to switch faster and/or to accommodate programmable circuits of large size. The buffer also enables the same select circuitry to be used in programming both circuits without causing a significant voltage between them during normal operation.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: November 8, 1988
    Assignee: North American Philips Corp., Signetics Division
    Inventor: Michael J. Bergman
  • NOR gate with logical low output clamp
    Patent number: 4641046
    Abstract: A NOR gate consisting of a set of input FET's (Q1.sub.1 -Q1.sub.M) has a clamp (12/ Q2) that, when at least one of the input FET's is turned on, clamps the logical low level of the gate output voltage at a value which is largely constant irrespective of how many of the input FET's are conductive.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: February 3, 1987
    Assignee: Signetics Corporation
    Inventors: Scott T. Becker, Michael J. Bergman, Shueh-Mien Lee