Patents by Inventor Charles L. Hudson, Jr.

Charles L. Hudson, Jr. 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).

  • Reconfigurable register bit-slice for self-test
    Patent number: 4894800
    Abstract: A re-configurable register bit-slice is disclosed for use in built-in logic block observers (i.e. BILBOs). The register bit-slice may be configured to a plurality of operational modes. Front-end logic is disclosed which switches a single current switch (e.g. transistor) between a data input and an output of the front-end logic. Thus, a single current switch of delay is added to normal operation of a standard shift register modified to be reconfigurable.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: January 16, 1990
    Assignee: Honeywell, Inc.
    Inventor: Charles L. Hudson, Jr.
  • Digital registers with serial accessed mode control bit
    Patent number: 4847839
    Abstract: A reconfigurable digital register that can be serially loaded has an additional bit associated with the register which holds information indicative of a mode of operation of the register. The mode control bit is located such that it can be serially loaded along with the other bits. A particularly useful embodiment is to use the mode control bit to configure the register as either a test pattern generator or a signature analysis register in support of integrated circuit self-test functions.
    Type: Grant
    Filed: August 26, 1987
    Date of Patent: July 11, 1989
    Assignee: Honeywell Inc.
    Inventors: Charles L. Hudson, Jr., Michael L. Kalm