Method and apparatus extracting pulse signal

Details Method and apparatus extracting pulse signal Method and apparatus extracting pulse signal

1992-02-20

1995-02-21

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

330149, 327 72, 327 98, 327558, H04L 2506, H04L 2510

Patent

active

053923170

ABSTRACT:
A pulse-signal extracting method and apparatus which are capable of generating an accurate pulse output even if the pulse input signal greatly pulsates due to a low-frequency noise component. A predetermined offset voltage is added to the input signal where the low-frequency noise component is superimposed on a pulse waveform which is the signal component so as to obtain an amplified signal. This amplified signal is inputted to a low-pass filter so as to output only the amplified flow-frequency component, and the original input signal is compared with the amplified low-frequency component in a comparator so as to extract the pulse waveform, which is the signal component, on the basis of the comparison result.

REFERENCES:
patent: 4339727 (1982-07-01), Kage et al.
patent: 5175748 (1992-12-01), Takahash

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