Token ring synchronization

Details Token ring synchronization Token ring synchronization

1990-07-24

1992-02-18

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375118, 370108, H04L 2560

Patent

active

050900250

ABSTRACT:
An improved local area network node of the type described in ANSI/IEEE Standard 802.5, including a receiver-demodulator having an input connectable to the ring and having a received data output and a received clock output, an elasticity buffer connected to the received data output, a modulator for modulating the output of the buffer in accordance with a signal at a clocking input of the modulator, and a phase-locked loop interposed between the received clock output of the demodulator and the clocking input of the modulator, the loop including a voltage-controlled oscillator, a phase detector and a filter connected for providing a control-voltage to the oscillator.

REFERENCES:
patent: 4320515 (1982-03-01), Burton, Jr.
patent: 4536876 (1986-08-01), Bahr et al.
patent: 4587651 (1986-05-01), Nelson et al.
patent: 4677614 (1987-06-01), Circo
patent: 4716575 (1987-12-01), Dovros et al.
patent: 4733404 (1988-03-01), Ostoich
patent: 4881243 (1989-11-01), Whitt
patent: 4893319 (1990-01-01), Ziuchkovski
patent: 4910755 (1990-03-01), Knapp
patent: 4953163 (1990-08-01), Miyamoto et al.

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