Invention Grant
- Patent Title: Electric circuit, sensor system equipped with the electric circuit, and sensor device equipped with the electric circuit
- Patent Title (中): 电路，配有电路的传感器系统，以及装有电路的传感器装置
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Application No.: US12835108Application Date: 2010-07-13
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Publication No.: US08643440B2Publication Date: 2014-02-04
- Inventor: Takayuki Kondo , Masayoshi Todorokihara , Yoshihiko Nimura , Takeo Kawase
- Applicant: Takayuki Kondo , Masayoshi Todorokihara , Yoshihiko Nimura , Takeo Kawase
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2009-196512 20090827
- Main IPC: H03K3/03
- IPC: H03K3/03
Abstract:
An electric circuit includes: a reference signal generation circuit that generates a reference signal based on a first oscillation signal that is an oscillation signal of a first oscillation circuit that vibrates a first vibrator; and a counter circuit that counts a second oscillation signal that is an oscillation signal of a second oscillation circuit that vibrates a second vibrator based on the reference signal, and outputs a count signal, wherein the count signal is a change of the count value in the second oscillation signal.
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