Signal processing circuit and method for extracting...

Details Signal processing circuit and method for extracting... Signal processing circuit and method for extracting...

2005-10-18

2005-10-18

Edun, Muhammad (Department: 2655)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal level detecting using a reference signal

C369S059100, C369S124010, C369S124150

Reexamination Certificate

active

06956805

ABSTRACT:
A signal processing circuit, which extracts a signal superimposed on a reference signal and having a peak level higher than a level of the reference signal by a value greater than a given value, includes a first pulse generation part generating a first binary signal by binarizing a composite signal of the reference signal and the superimposed signal by using a given slice level, a noise elimination part eliminating noise from the first binary signal by using a cumulative length of time of each of polarities of the first binary signal, a second pulse generation part generating a second binary signal by binarizing the composite signal by using a slice level higher than the level of the reference signal by a value smaller than or equal to the given value, and a gate part outputting the second binary signal based on a signal output from said noise elimination part.

REFERENCES:
patent: 6483457 (2002-11-01), Hirata et al.

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