Method and apparatus for adjusting data recorded on optical...

Pulse or digital communications – Receivers – Particular pulse demodulator or detector

Reexamination Certificate

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C369S059220

Reexamination Certificate

active

07443932

ABSTRACT:
A method and an apparatus which adjusts a signal read from an optical disc in order to obtain stable binary data. The signal adjustment method comprises (a) detecting a period of an input signal of a predetermined code; (b) determining whether the detected period is smaller than a predetermined value; and (c) if the detected period is determined to be smaller than the predetermined value, adjusting the input signal so that its period equals the predetermined value, and outputting the input signal. The signal adjustment method and apparatus of the present invention reduce errors and improve system performance, when a signal input to the binary processor does not meet its code feature.

REFERENCES:
patent: 6345023 (2002-02-01), Fushimi et al.
patent: 6600431 (2003-07-01), Shim et al.
patent: 2001/0006500 (2001-07-01), Nakajima et al.
patent: 2001/0016002 (2001-08-01), Shim et al.

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