Patents by Inventor Charles P. Bockett-Pugh

Charles P. Bockett-Pugh 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).

  • Patent number: 4611302
    Abstract: A battery backup circuit for a CMOS RAM is isolated from the negative, or ground, power supply rail of the memory so that the memory is held at a potential which is sufficiently different from that of the normal write-enable signal (usually zero volts) to prevent spurious signals from affecting the memory.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: September 9, 1986
    Assignee: Schlumberger Electronics (U.K.) Limited
    Inventor: Charles P. Bockett-Pugh
  • Patent number: 4441074
    Abstract: A digital circuit tester for performing signature analysis is provided with a memory (32) for storing successive samples at 256-bit intervals of the progressively evolving CRC signature of a signal in the circuit under test. Comparison with the same sequence from a known good unit facilitates identification of faults, even in feedback loops. To identify the first failing bit, the test is repeated, but with the CRC feedback connections disabled, and successive blocks of the actual data stream are stored, beginning at the point corresponding to the first faulty signature sample, for subsequent inspection and comparison with the data stream from the known good unit.
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: April 3, 1984
    Assignee: The Solartron Electronic Group Limited
    Inventors: Charles P. Bockett-Pugh, Brian L. Kett