Clock distribution apparatus and processes particularly useful i

Details Clock distribution apparatus and processes particularly useful i Clock distribution apparatus and processes particularly useful i

1990-06-08

1994-03-08

LaRoche, Eugene R.

Excavating

371 1, 385 39, 385 90, G06F 1300

Patent

active

052936260

ABSTRACT:
Clock pulses from a master oscillator are distributed in a multiprocessor computer system so that they arrive at a large number of utilization points located in operating clusters of modules within extremely tight time tolerances of each other. The delays associated with each component, electrical or optical connection, cable or the like are determined by direct measurement or by using known standard characteristics. A time delay budget for each complete clock pulse path from the point of initial divergence from the master clock source to the final chip delivery point is logged and summed. Components capable of introducing predetermined amounts of time delay are incorporated in some or all clock pulse paths. These components are adjusted so as to balance out the differences determined from the clock path budgets. The clock paths are implemented in electrical components either alone or in combination with optical components, or in substantially all optical configurations. One arrangement for controlling optical skew includes an arrangement of optical elements physically displaceable in a coaxial direction relative to one another. Skew adjustment networks employ a unique composition of coarse and fine selectable delay arrays implemented either by electrical components, optical components, or a combination thereof.

REFERENCES:
patent: 3753241 (1973-08-01), Bayne
patent: 4118100 (1978-12-01), Goell et al.
patent: 4294512 (1981-10-01), Logan
patent: 4490821 (1984-12-01), Lacher
patent: 4714924 (1987-12-01), Ketzler
patent: 4756590 (1988-07-01), Forrest et al.
patent: 4818995 (1989-04-01), Takahashi et al.
patent: 4833695 (1989-05-01), Greub
patent: 4851995 (1989-07-01), Hsu et al.
patent: 4860322 (1989-08-01), Lloyd
patent: 4881165 (1989-11-01), Sager et al.
patent: 4900115 (1990-02-01), Heuring et al.
patent: 4927228 (1990-05-01), Van De Pas
patent: 4929888 (1990-05-01), Yoshida
patent: 4949249 (1990-08-01), Lefsky
patent: 4959540 (1990-09-01), Fan et al.
patent: 5109449 (1992-04-01), Newberg et al.
D. H. Hartman, "Photonic systems Interconnections-Overcoming the High Speed Electronics Bottleneck", Hybrid Circuits, No. 16, pp. 12-18 (1988).
R. L. Khalil, L. R. McAdams and J. W. Goodman, "Optical clock distribution for high speed computors", SPIE vol. 991, Fiber Optic Datecom and Computer Networks (1988).

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