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Title: Limiter circuit for limiting pulsive noises

Abstract: A limiter circuit comprises a low-pass filter which passes only a modulation signal out of the modulation signal having pulsive noises superimposed thereon and circuit means for supplying the modulation signal extracted by the filter to current source circuits for a limiter differential amplifier to control the current source circuit for the limiter differential amplifier in accordance with a waveform of the input modulation signal applied thereto.


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Inventors: Nishijima, Hideo (Katsuta, JP)
Fukushima, Isao (Katsuta, JP)
Kimura, Hiroyuki (Yokohama, JP)

Application Number: 934717
Filing Date: 1978-08-21
Publication_date: 1980-04-15
Assignee: Hitachi, Ltd. (JP)
Primary Class(es): 455/307 327/311, 455/308
Other Classes:
US Patent Ref:
3932768Jan, 1976Takahashi et al.307/237.
3968383Jul, 1976Smith328/165.
4042883Aug, 1977Rae325/482.

Other Refs:
Primary Examiner: Bookbinder, Marc E.
Assistant Examiner: Gerasimow, Alexander
Attorney: Craig and Antonelli