Patents - 1990
Hypersystolic Reed-Solomon decoder
Elwyn R. Berlekamp, Gadiel Seroussi and Po Tong
U.S. Patent 4,958,348. September 1990
Echo cancelling device with frequency sub-band filtering
Andre Gilloire and Martin Vetterli
U.S. Patent 4,956,838. September 1990
Method and apparatus for rapid NMR imaging of nuclear parameters with an object
Lawrence E. Crooks, John C. Hoenninger III, Mitsuaki Arakawa and Jerome R. Singer
U.S. Patent RE33,259. August 1990
Electrostatic micromotor
Roger T. Howe, Jeffrey H. Lang, Martin F. Schlecht, Martin A. Schmidt and Stephen D. Senturia
U.S. Patent 4,943,750. July 1990
High speed photodetector having dual transmission line geometry
Jeffrey Bokor and Anthony M. Johnson
U.S. Patent 4,933,542. June 1990
Coder-decoder for purged extended Golay (22,7) codes
Po Tong, Elwyn R. Berlekamp, Robert J. Currie and Craig K. Rushforth
U.S. Patent 4,926,169. May 1990
Cross-coupled quantum-well stripe laser array
Constance J. Chang-Hasnain and Elyahou Kapon
U.S. Patent 4,922,500. May 1990
Arsenic sulfide surface passivation of III-V semiconductors
Brian G. Bagley, Thomas J. Gmitter and Eli Yablonovitch
U.S. Patent 4,920,078. April 1990
Multiprocessor/memory interconnection network wherein messages sent through the network to the same memory are combined
Abhiram G. Ranade
U.S. Patent 4,920,484. April 1990
Elongated burst trapping
Elwyn R. Berlekamp
U.S. Patent 4,916,702. April 1990
High voltage power IC process
Chenming Hu and Steven P. Sapp
U.S. Patent 4,908,328. March 1990
Constant velocity optical scanning system
Albert P. Pisano
U.S. Patent 4,901,105. February 1990
Very high gain positive feedback CMOS transconductance amplifier
Carlos A. Laber and Paul R. Gray
U.S. Patent 4,897,611. January 1990
Turbulent shear force microsensor
Joseph H. Haritonidis, Roger T. Howe, Martin A. Schmidt and Stephen D. Senturia
U.S. Patent 4,896,098. January 1990