Signaling with multiple clocks

Pulse or digital communications – Cable systems and components

Reexamination Certificate

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C375S360000

Reexamination Certificate

active

07342969

ABSTRACT:
At least two sequences of predetermined reference times are established on respective ones of at least two communication lines. At least some of the reference times of at least one of the sequences occur out-of-phase with at least some of the reference times of another of the sequences. Digital data is encoded onto data signals on one or more communication lines such that a time difference between at least one of the data signals and the nearest one of the reference times on one of the communication lines is smaller than the time difference between the same data signal and the nearest one of the reference times on another one of the communication lines.

REFERENCES:
patent: 4785394 (1988-11-01), Fischer
patent: 5910742 (1999-06-01), Synder et al.
patent: 6278755 (2001-08-01), Baba et al.
patent: 6463092 (2002-10-01), Kim et al.
patent: 2003/0043926 (2003-03-01), Terashima et al.
patent: 2003/0061564 (2003-03-01), Maddux
patent: 2004/0071247 (2004-04-01), Dunning et al.
patent: 0 596 694 (1994-05-01), None
patent: 05696694 (1994-11-01), None
Nogami, Kazutaka, et al. “Phase Modulation I/O Interface Circuit”, IEEE International Solid-State Circuits Conference, New York, USA, vol. 37, pp. 108-109, 318, Feb. (1994).
PCT/US2004/021809 Int'l Preliminary Report on Patentability (Chapter 1) dated Feb. 9, 2006.

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