Patents - 1989

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

Digital technique for precise measurement of variable capacitance
Hae-Seung Lee, Roger T. Howe and Joseph T. Kung
U.S. Patent 4,860,232. August 1989

Resonant accelerometer
Roger T. Howe and Shih-Chia Chang
U.S. Patent 4,851,080. July 1989

Null-detection magnetometers
Richard S. Muller and Juan I. Goicolea
U.S. Patent 4,849,695. July 1989

Superluminescent diode and single mode laser
Sze-Keung Kwong, Kam Y. Lau, Nadav Bar-Chaim and Israel Ury
U.S. Patent 4,843,611. June 1989

Apparatus and technique for timing jitter cancellation in a data receiver
Victor B. Lawrence and Edward A. Lee
U.S. Patent 4,831,637. May 1989

Virtual processor techniques in a SIMD multiprocessor array
Guy L. Steele, Jr., W. Daniel Hillis, Guy Blelloch, Michael Drumbeller, Brewster Kahle, Clifford Lasser, Abhiram Ranade, James Salem and Karl Sims
U.S. Patent 4,827,403. May 1989

Released film structures and method of measuring film properties
Roger T. Howe, Mehran Mehregany and Stephen D. Senturia
U.S. Patent 4,823,607. April 1989

Soft decision Reed-Solomon decoder
Elwyn R. Berlekamp
U.S. Patent 4,821,268. April 1989

Real-time N-dimensional analog signal rotator
Leon O. Chua and Isutomu Sugawara
U.S. Patent 4,819,200. April 1989

IC processed piezoelectric microphone
Richard S. Muller and Eun S. Kim
U.S. Patent 4,816,125. March 1989

Instruction execution accelerator for a pipelined digital machine with virtual memory
Alan J. Smith
U.S. Patent 4,811,215. March 1989

Resonant accelerometer
Roger T. Howe and Shih-Chia Chang
U.S. Patent 4,805,456. February 1989

Digital time base correction using a reference bit
Elwyn R. Berlekamp, James A. Bixby and James U. Lemke
U.S. Patent 4,803,566. February 1989

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

Integrated-circuit one-way isolation coupler incorporating one or several carrier-domain magnetometers
Richard S. Muller and Juan I. Goicolea
U.S. Patent 4,801,883. January 1989

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