Flywheel circuit

Details Flywheel circuit Flywheel circuit

1989-12-15

1991-10-15

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

3701001, 3701051, 375106, H04J 306

Patent

active

050581066

ABSTRACT:
A system that provides a signal in an assigned time slot of a multi-time slot repetitive frame, the assigned time slot being determined by input data that changes only on occasion, includes a flywheel circuit for reducing the chance that intermittent errors in the data input may cause the signal to be provided in an incorrect time slot. The flywheel circuit includes a time slot counter synchronized to provide a zero count during the assigned time slot and to initiate an output signal whenever the zero count occurs. The timing of a particular count of the counter is compared to the timing of the signal from the system during each frame, and if the timing does not correspond in a predetermined manner for a predetermined number of consecutive frames, the counter is re-synchronized to the timing of the signal from the system.

REFERENCES:
patent: 3271688 (1966-09-01), Gschwind et al.
patent: 4156112 (1979-05-01), Moreland
patent: 4282600 (1981-08-01), Zemanek
patent: 4340962 (1982-07-01), Wintzer et al.
patent: 4712211 (1987-12-01), Suzuki et al.
patent: 4876683 (1989-10-01), Suzuki

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