Electrical Engineering
      and Computer Sciences

Electrical Engineering and Computer Sciences

COLLEGE OF ENGINEERING

UC Berkeley

   

Patents - Martin H. Graham

Circuit for measurement of electrical pollution on power line
Martin H. Graham
U.S. Patent 6,914,435. July 2005

Phase detection circuit
Martin H. Graham
U.S. Patent 6,690,151. February 2004

Method and apparatus for transmitting and receiving a symbol over POTS wiring using a multi-cycle waveform
Martin H. Graham, Harold H. Webber, Jr. and Matthew Taylor
U.S. Patent 6,678,321. January 2004

Biphasic multiple level storage method
Martin H. Graham
U.S. Patent 6,473,252. October 2002

Capacitor discharging circuit
Martin H. Graham
U.S. Patent 6,424,125. July 2002

Method and apparatus for decoding a bit sequence for transmission over POTS wiring
Martin H. Graham and Harold H. Webber, Jr.
U.S. Patent 6,246,718. June 2001

Voltage compensation circuit and method for reducing electric shocks to teats of an animal during its milking
Martin H. Graham
U.S. Patent 6,234,108. May 2001

Encoding/detection method for digital data transmitter with a signal having multiple levels
Howard W. Johnson and Martin H. Graham
U.S. Patent 6,031,472. February 2000

Encoding/detection method for digital data
Martin H. Graham
U.S. Patent 6,028,540. February 2000

Method and apparatus for encoding and decoding a bit sequence for transmission over POTS wiring
Martin H. Graham and Harold H. Webber, Jr.
U.S. Patent 5,963,595. October 1999

Circuit for preventing base line wander of digital signals in a network receiver
Martin H. Graham and Matthew Taylor
U.S. Patent 5,812,597. September 1998

Method and apparatus for time dependent data transmission
Martin H. Graham, Matthew Taylor, Mark Miller and Kevin Braun
U.S. Patent 5,696,790. December 1997

Common mode current cancellation in twisted pairs
Martin H. Graham and Matthew Taylor
U.S. Patent 5,587,692. December 1996

Flat cable to flat parallel wire cable
Charles M. Aden, Martin H. Graham, Matthew Taylor and Mark Miller
U.S. Patent 5,467,061. November 1995

Four-terminal resistor method for measuring electric current in cows
Martin H. Graham
U.S. Patent 5,465,051. November 1995

Enhanced collision detection for Ethernet network
Charles M. Aden and Martin H. Graham
U.S. Patent 5,450,594. September 1995

EMI suppression coding
Martin H. Graham
U.S. Patent 5,422,919. June 1995

Flat cable to flat parallel wire cable
Charles M. Aden, Martin H. Graham, Matthew Taylor and Mark Miller
U.S. Patent 5,379,005. January 1995

Network monitor and test apparatus
Martin H. Graham
U.S. Patent 5,365,515. November 1994

Network monitor and test apparatus
Martin H. Graham
U.S. Patent 5,347,225. September 1994

EMI suppression coding
Martin H. Graham
U.S. Patent 5,283,807. February 1994

Network monitor and test apparatus
Martin H. Graham
U.S. Patent 5,260,664. November 1993

Method and apparatus for power line communications
Martin H. Graham and Howard W. Johnson
U.S. Patent 5,257,006. October 1993

Apparatus and method for reducing errors in data caused by noise
Martin H. Graham, Howard W. Johnson, Philip H. Sutterlin, Chin-Chen Lee and Amy O. Hurlbut
U.S. Patent 5,210,518. May 1993

Local area network amplifier for twisted pair lines
Martin H. Graham, Anthony J. Ireland, Mark Miller and Matthew Taylor
U.S. Patent 5,191,300. March 1993

Apparatus and method for analyzing nucleic acid molecules
Thomas J. Conroy and Martin H. Graham
U.S. Patent 4,870,004. September 1989

Bus apparatus with a plurality of transmitters
Martin H. Graham
U.S. Patent 4,803,699. February 1989

Balun
Martin H. Graham
U.S. Patent 4,800,344. January 1989

Method and apparatus for transmission of digital data over a line
Martin H. Graham
U.S. Patent 4,752,940. June 1988

Balun
Martin H. Graham
U.S. Patent 4,717,896. January 1988

Time division multiplexed computerized branch exchange
Howard W. Johnson, Michael G. Duncan, Rod G. Sinks, John D. Edwards, Martin H. Graham, James M. Kasson and Charles M. Corbalis
U.S. Patent 4,627,050. December 1986

Low power consuming AC to DC converter
Martin H. Graham
U.S. Patent 4,600,982. July 1986

Dual tone multi frequency digital detector
Martin H. Graham and Enoch Callaway
U.S. Patent 4,484,035. November 1984

High speed ribbon cable bus
Martin H. Graham
U.S. Patent 4,445,048. April 1984

Inductively coupled sensing circuit and priority system
Martin H. Graham
U.S. Patent 4,411,004. October 1983

Transmitter/receiver for use on common cable communications system such as Ethernet
Martin H. Graham
U.S. Patent 4,320,520. March 1982

Signal injection technique
James M. Kasson and Martin H. Graham
U.S. Patent 4,187,466. February 1980

Spirometer
Martin H. Graham
U.S. Patent 3,797,479. March 1974

Electrocardiograph lead distribution and contact testing apparatus
Martin H. Graham
U.S. Patent 3,757,778. September 1973

Electron discharge device
Martin H. Graham
U.S. Patent 3,054,926. September 1962