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Dynamic quantity detection device

  • US 20110109330A1
  • Filed: 09/28/2010
  • Published: 05/12/2011
  • Est. Priority Date: 11/09/2009
  • Status: Active Grant
First Claim
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1. A dynamic quantity detection device comprising:

  • a detection portion configured to detect a dynamic quantity applied from an outside and generate a sensor signal in accordance with the dynamic quantity;

    a signal process portion configured to process the sensor signal from the detection portion to have a property suitable for an external device; and

    an operation mode switch portion configured to switch an operation mode, whereinwhen the sensor signal output from the detection portion is less than or equal to a predetermined threshold value, the operation mode switch portion sets the operation mode to a power save mode by stopping an operation of the signal process portion, andwhen the sensor signal output from the detection portion is greater than the predetermined threshold value, the operation mode switch portion switches the operation mode to a normal mode by activating the signal process portion.

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