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Patent Searching and Data


Title:
SENSOR MODULE AND SENSOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/090627
Kind Code:
A1
Abstract:
The purpose of the present invention is to ensure the reliability and accuracy of a sensor while reducing the cost for conditioning of a sensor module. A signal component analysis unit (10) receives a signal that is output from a signal processing unit (7) and is not passed through a low-pass filter (8) yet, analyzes whether or not the application of a fragile frequency associated with a physical quantity occurs at a certain level or higher, and outputs an output stop signal to an output signal control unit (9, 16) when the application of the fragile frequency occurs at the certain level or higher. The output signal control unit (9, 16) receives a control signal output from the signal component analysis unit (10) and stops the output of an acceleration signal and a physical quantity signal which have passed through the signal processing unit (7, 14) and from which noises are eliminated by means of the low-pass filter (8, 15).

Inventors:
MAEDA, Daisuke (HITACHI LTD., 280, Higashikoigakubo 1-chome, Kokubunji-sh, Tokyo 01, 〒1858601, JP)
前田 大輔 (〒01 東京都国分寺市東恋ヶ窪一丁目280番地 株式会社日立製作所 中央研究所内 Tokyo, 〒1858601, JP)
JEONG, Heewon (HITACHI LTD., 280, Higashikoigakubo 1-chome, Kokubunji-sh, Tokyo 01, 〒1858601, JP)
Application Number:
JP2011/077070
Publication Date:
July 05, 2012
Filing Date:
November 24, 2011
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
日立オートモティブシステムズ株式会社 (〒03 茨城県ひたちなか市高場2520番地 Ibaraki, 〒3128503, JP)
MAEDA, Daisuke (HITACHI LTD., 280, Higashikoigakubo 1-chome, Kokubunji-sh, Tokyo 01, 〒1858601, JP)
前田 大輔 (〒01 東京都国分寺市東恋ヶ窪一丁目280番地 株式会社日立製作所 中央研究所内 Tokyo, 〒1858601, JP)
International Classes:
G01C19/5776; G01P15/125
Foreign References:
JP2005241359A
JP2007187606A
JP2007532932A
JPS61191171A
Attorney, Agent or Firm:
TSUTSUI, Yamato (Tsutsui & Associates, 3F Shinjuku Gyoen Bldg. 3-10, Shinjuku 2-chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
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Claims: