Pulse or digital communications – Multilevel
Reexamination Certificate
2006-11-28
2006-11-28
Patel, Jay K. (Department: 2611)
Pulse or digital communications
Multilevel
C375S288000, C341S055000, C341S056000
Reexamination Certificate
active
07142612
ABSTRACT:
A system transmits data on a multi-conductor signal path, which produces a current flow based on the value of the data transmitted. The system reduces changes in current flow between successive data transmissions by encoding data values represented by sets of N bits to produce corresponding sets of M symbols. Each set of M symbols represents multiple bits and each set of M symbols is selected to produce a current flow within a predetermined range of current flows. The sets of M symbols are transmitted across the multi-conductor signal path.
REFERENCES:
patent: 3369229 (1968-02-01), Dorros
patent: 3521274 (1970-07-01), Sawai
patent: 3587088 (1971-06-01), Franaszek
patent: 3754237 (1973-08-01), de Laage de Meux
patent: 4408189 (1983-10-01), Betts et al.
patent: 4486739 (1984-12-01), Franaszek et al.
patent: 4495626 (1985-01-01), Brunin et al.
patent: 4665517 (1987-05-01), Widmer
patent: 4667337 (1987-05-01), Fletcher
patent: 4855742 (1989-08-01), Verboom
patent: 5142167 (1992-08-01), Temple et al.
patent: 5740201 (1998-04-01), Hui
patent: 5903231 (1999-05-01), Emelko
patent: 5999571 (1999-12-01), Shin et al.
patent: 6005895 (1999-12-01), Perino et al.
patent: 6067326 (2000-05-01), Jonsson et al.
patent: 6067594 (2000-05-01), Perino et al.
patent: 6078627 (2000-06-01), Crayford
patent: 6094461 (2000-07-01), Heron
patent: 6137455 (2000-10-01), Duo
patent: 6154498 (2000-11-01), Dabral et al.
patent: 6226330 (2001-05-01), Mansur
patent: 6278740 (2001-08-01), Nordyke
patent: 6324602 (2001-11-01), Chen et al.
patent: 6359931 (2002-03-01), Perino et al.
patent: 6556628 (2003-04-01), Poulton et al.
patent: 2003/0095606 (2003-05-01), Horowitz et al.
patent: 2004/0150432 (2004-08-01), Poulton et al.
patent: WO 0197391 (2001-12-01), None
patent: WO 01097391 (2001-12-01), None
“Coding a Terminated Bus for Low Power”, M.R. Stan & W.P. Burleson, Great Lakes Symposium on VSLI, pp. 70-73, Mar. 1995.
“Bus-Invert Coding for Low Power I/O”, M.R. Stan & W.P. Burleson, IEEE Transactions on Very Large Scale Integration Systems, vol. XX, No. Y, 1999.
“A 500-MHz 4-Mb CMOS Pipeline-Burst Cache SRAM with Point-to-Point Noise Reduction Coding I/O”, Nakamura et al., IEEE Journal of Solid-State Circuits, vol. 32, No. 11, Nov. 1997, 8 pp.
Carusone et al., “Differential Signaling with a Reduced Number of Signal Paths,” IEEE Transactions on Circuits and Systems—II: Analog and Digital Signal Processing, Mar. 2001, pp. 294-300, vol. 48, No. 3.
Marsland et al., “A Network Multi-Processor for Experiments in Parallelism,” Mar. 31, 1991, pp. 1-29.
Widmer et al., “A DC-Balanced, Partitioned-Block, 8B/10B Transmission Code,” IBM J. Res. Develop., Sep. 1983, pp. 440-451, vol. 27, No. 5.
Best Scott C.
Horowitz Mark A.
Stonecypher William F.
Lugo David B.
Patel Jay K.
Rambus Inc.
Shemwell Mahamedi LLP
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