Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1991-09-20
1993-12-21
Kuntz, Curtis
Pulse or digital communications
Spread spectrum
Direct sequence
371 1, 307269, 307511, 328 63, 328155, H04L 700, H04L 2536, H04L 2540
Patent
active
052727297
ABSTRACT:
A process independent digital clock signal timing network is described for generating a chip clock substantially in phase with and offset by one cycle from an input clock signal. The timing network determines the delay experienced by a clock signal passing through a predetermined internal clock circuit on the chip and pregates the internal clock circuit by an amount equivalent to the determined delay such that the chip clock signal output from the internal clock circuitry lags the external clock signal input to the semiconductor chip by one cycle. Various timing network embodiments are described and claimed.
REFERENCES:
patent: 4143328 (1979-03-01), Kurita et al.
patent: 4370648 (1983-01-01), Wagner et al.
patent: 4443766 (1984-04-01), Belton, Jr.
patent: 4524448 (1985-06-01), Hullwegen
patent: 4637018 (1987-01-01), Flora et al.
patent: 4660197 (1987-04-01), Wrinn et al.
patent: 4675886 (1987-06-01), Surie
patent: 4771441 (1988-09-01), Spengler et al.
patent: 4853845 (1989-08-01), Zimmer et al.
patent: 4860322 (1989-08-01), Lloyd
patent: 4872155 (1989-10-01), Yokogawa et al.
patent: 4929854 (1990-05-01), Iino et al
patent: 4935942 (1990-06-01), Hwang et al.
patent: 5022056 (1991-06-01), Henderson et al.
Chang et al., "Scheme for Reducing Clock Skew in Multiple-Chip System Design", IBM Technical Disclosure Bulletin, vol. 30, No. 2, pp. 568-572, 1987.
Blum, A., "Automatic Adjustment of Several Decentrally Generated Clock Pulse Sequences of a Computer Distributed Over Several VLSI Chips", IBM Technical Disclosure Bulletin, vol. 24, No. 2, pp. 895-897, 1981.
Broockman, E. C., "High Speed On-Chip Addressable Memory Clock", IBM Technical Disclosure Bulletin, vol. 29, No. 12, pp. 5413-5416, 1987.
Puri, et al., "Clock Generator Circuit", IBM Technical Disclosure Bulletin, vol. 25, No. 9, pp. 4505-4507, 1983.
Grimes, D. W., "Skew Detector and Corrector for A Disk, Drum, or Tape Storage", IBM Technical Disclosure Bulletin, vol. 18, No. 1, pp. 164-167, 1975.
Gindi, A. M., "Deskewing System for Parallel Recorded Data", IBM Technical Disclosure Bulletin, vol. 10, No. 1, pp. 37-39, 1967.
Debrod et al., "Transmission Delay Cancellation Mechanism on Very High Speed Birdirectional Buses", IBM Technical Disclosure Bulletin, vol. 32, No. 7, pp. 245-247, 1988.
Concha et al., "Low-Cost Clock Generator Circuit", IBM Technical Disclosure Bulletin, vol. 30, No. 11, pp. 394-396.
Kleinman, D. A., "Logic Chip Performance Customization", IBM Technical Disclosure Bulletin, vol. 31, No. 7, pp. 301-303, 1988.
Mather, A. N. "Tolerance-Compensated Circuit for CMOS VLSI Clock Distribution", IBM Technical Disclosure Bulletin, vol. 30, No. 4, pp. 1453-1454, 1987.
Ludwig et al., "Tolerance Compensation for CMOS Circuits", IBM Technical Disclosure Bulletin, vol. 28, No. 5, pp. 2132-2133, 1985.
Bechade Roland
Ferraiolo Frank D.
Kaufmann Bruce
Novof Ilya I.
Oakland Steven F.
International Business Machines - Corporation
Kuntz Curtis
Vo Don N.
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