Method of transmitting clock signal and device employing the sam

Details Method of transmitting clock signal and device employing the sam Method of transmitting clock signal and device employing the sam

1997-04-25

1998-07-14

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Regenerating or restoring rectangular or pulse waveform

327165, 327291, 327299, H03K 515

Patent

active

057810494

ABSTRACT:
A frequency divider 1 on the transmitting side divides the frequency of a clock signal of period T by 8, generates a pulse signal P2 of pulse width 4T and duty ratio 50%, and outputs the result to a shift register 2. The shift register 2 generates pulse signals P3-1, P3-2, P3-3, and P3-4 by giving delays 0, T, 2T, and 3T to the pulse signal P2, and sends them to transmission lines 101, 102, 103, and 104, respectively. Edge detectors 3-1, 3-2, 3-3, and 3-4 on the receiving side detect respectively the leading edges and the trailing edges of the pulse signals P3-1, P3-2, P3-3, and P3-4, and output edge detection signals P4-1, P4-2, P4-3, and P4-4. An OR gate 4 combines these edge detection signals. A clock regenerator 5 generates a regenerated signal P6 having the frequency equal to that of the clock signal P1 based on the combined edge detection signal P5.

REFERENCES:
patent: 4665535 (1987-05-01), Nagasawa
patent: 5282223 (1994-01-01), Muramatsu

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