Circuit and method of compensating for signal delay in a cable

Details Circuit and method of compensating for signal delay in a cable Circuit and method of compensating for signal delay in a cable

2006-10-27

2008-11-25

Chang, Joseph (Department: 2817)

Oscillators

Combined with particular output coupling network

C307S003000, C326S021000

Reexamination Certificate

active

07456696

ABSTRACT:
The compensation circuit comprises an oscillator, a first variable delay line, a second variable delay line, a phase detector and a controller. The oscillator generates an oscillation signal to input into a first transmission line and a second transmission line. The first variable delay line receives the oscillation signal transmitted through the first transmission line. The second variable delay line receives the oscillation signal transmitted through the second transmission line. The phase detector compares the phases of the two oscillation signals from the variable delay lines to generate a phase difference signal. The controller adjusts the variable delay lines to compensate for asynchronous signal transmission of the transmission lines according to the phase difference signal.

REFERENCES:
patent: 4993026 (1991-02-01), Yamashita
patent: 6154466 (2000-11-01), Iwasaki et al.
patent: 6465903 (2002-10-01), Wuidart et al.
patent: 2003/0016049 (2003-01-01), Wei

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