×

Angular velocity detection circuit and angular velocity detection apparatus

  • US 8,671,755 B2
  • Filed: 11/14/2012
  • Issued: 03/18/2014
  • Est. Priority Date: 07/17/2008
  • Status: Active Grant
First Claim
Patent Images

1. A circuit for use in a physical quantity detection device, comprising:

  • a self-vibration component extraction unit that receives, from a resonator, a signal that includes (i) a first component corresponding to a magnitude of a physical quantity, and (ii) a second component based on an excited vibration, the self-vibration component extraction unit extracting the second component from the signal;

    a direct-current conversion unit that includes an integration unit that integrates an output signal of the self-vibration component extraction unit;

    an offset addition unit that adds an offset value to an output signal of the direct-current conversion unit; and

    a determination unit that monitors and determines the output signal of the offset addition unit or the direct-current conversion unit.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×