Oscillation module

Details Oscillation module Oscillation module

2011-04-12

2011-04-12

Chang, Joseph (Department: 2817)

Oscillators

Combined with particular output coupling network

Wave filter

C331S158000

Reexamination Certificate

active

07924106

ABSTRACT:
To provide an oscillation module which is able to improve an input level by passing signals in a main signal band while removing near noise and far noise.An oscillation module is provided with an OCXO, an amplifier, and a noise elimination filter. The noise elimination filter includes: a BPF passing a signal in the main signal band and eliminating far noise with respect to the main signal band; an L-BEF eliminating near noise in a low frequency band with respect to the main signal band; and an H-BEF eliminating near noise in a high frequency band with respect to the main signal band. Each filter is configured with a crystal filter.

REFERENCES:
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Japanese Utility Model Application No. S54-131445, filed Feb. 10, 1978, English translation of claims attached.
Japanese Utility Model Application No. S63-138735, filed Sep. 13, 1988, English translation of claims attached.
Office Action issued on Jan. 6, 2011 from Japan Patent Office in corresponding Japanese patent application No. 2007-331766 (English translation provided).

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