The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2011
Filed:
Dec. 23, 2008
Naoto Inouchi, Chitose, JP;
Kazuo Akaike, Sayama, JP;
Junichiro Yamakawa, Chitose, JP;
Masazumi Kubota, Sayama, JP;
Naoto Inouchi, Chitose, JP;
Kazuo Akaike, Sayama, JP;
Junichiro Yamakawa, Chitose, JP;
Masazumi Kubota, Sayama, JP;
Nihon Dempa Kogyo Co., Ltd, Tokyo, JP;
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.