Circuit arrangement for clock recovery

Details Circuit arrangement for clock recovery Circuit arrangement for clock recovery

1990-09-14

1991-07-30

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328139, 328164, 307271, 307269, H03K 904, H03B 100

Patent

active

050362887

ABSTRACT:
For alternatively recovering a clock frequency output signal from an input data signal or an input clock signal, a tuned circuit at the input of the arrangement formed by a secondary winding of a transformer and two series capacitors connected in parallel with the secondary winding is connected in alternative first and second circuit paths to the output of the arrangement. The first circuit path includes a frequency converter for converting a spectral line of the data signal into the clock frequency, while the second circuit path includes a clock divider for converting the input clock signal into the output clock signal. The alternative circuit paths are established by a change-over device which alternatively couples the output of the frequency converter or the output of the clock divider to the output of the arrangement. One of the series capacitors is selectively bridged by a switch, which also controls the state of the change-over device.

REFERENCES:
patent: 3555303 (1971-01-01), Kozawa
patent: 3820034 (1974-06-01), Ball
patent: 4122397 (1978-10-01), Thomas
patent: 4812906 (1989-03-01), Wolber

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