Phase tracking network

Details Phase tracking network Phase tracking network

1975-02-10

1976-07-27

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

179 1P, 179 2DP, 325 41, 325323, 325476, 329 50, 329104, H03K 518, H04B 110

Patent

active

039719960

ABSTRACT:
A phase tracking network for correcting an undesirable first phase angle of a first signal, includes an error calculating circuit responsive to partial response data signals to provide a phase error signal. Filter means adapted to be coupled to the error calculating circuit is responsive to the linear and nonlinear characteristics of the phase error signal to provide a second phase angle in a second signal. A phase correction network coupled between the filter means and the error calculating circuit is responsive to the second phase angle in the second signal to correct the first phase angle in the first signal.

REFERENCES:
patent: 3465258 (1969-09-01), Wheatley
patent: 3537017 (1970-10-01), Judge
patent: 3629716 (1971-12-01), Dimon
patent: 3646452 (1972-02-01), Horowitz et al.
patent: 3669511 (1972-06-01), Motley et al.
patent: 3701023 (1972-10-01), Fang
patent: 3701948 (1972-10-01), McAuliffe

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