Signal demodulation method and apparatus for reproducing...

Details Signal demodulation method and apparatus for reproducing... Signal demodulation method and apparatus for reproducing...

2006-05-02

2006-05-02

Chin, Stephen (Department: 2634)

Pulse or digital communications

Transmitters

C375S324000, C375S344000, C375S323000, C370S410000, C370S349000, C708S323000

Reexamination Certificate

active

07039123

ABSTRACT:
A demodulation method, and apparatus, for reproducing data from a received signal. The demodulation method includes the steps of: receiving a signal including a series of frames each containing a training signal for automatic equalization processing and a data signal; controlling an amplitude of the received signal by AGC processing so as to make the amplitude a predetermined level; conducting demodulation processing on the signal subjected to the AGC processing; periodically conducting automatic equalization processing so as to adapt the modulated signal to characteristics of the signal transmission path based on each training signal of the frame; and setting values of a time constant of the AGC processing and an update repetition period of the automatic equalization processing so as to satisfy a predetermined relation.

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patent: 0486474 (1992-05-01), None
patent: 07170306 (1995-07-01), None

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