发明名称 |
DETECTION CIRCUIT, PHYSICAL QUANTITY DETECTION APPARATUS, ANGULAR VELOCITY DETECTION APPARATUS, INTEGRATED CIRCUIT DEVICE, AND ELECTRONIC INSTRUMENT |
摘要 |
A detection circuit includes a synchronous detection circuit (synchronous detection section) that synchronously detects a signal that includes a detection signal of a vibrator (an output signal of an amplifier), a switched capacitor filter (SCF) circuit that filters a signal that has been synchronously detected by the synchronous detection circuit (an output signal of a programmable gain amplifier), and an output buffer that buffers and outputs a signal that has been filtered by the SCF circuit, the gain of the SCF circuit being larger than 1.
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申请公布号 |
US2013055810(A1) |
申请公布日期 |
2013.03.07 |
申请号 |
US201213404475 |
申请日期 |
2012.02.24 |
申请人 |
YANAGISAWA YOSHINAO;OSHIO MASAHIRO;KIKUCHI TAKAYUKI;NISHIDA TOSHIHIRO;TAKAHASHI MASAYUKI;SEIKO NPC CORPORATION;SEIKO EPSON CORPORATION |
发明人 |
YANAGISAWA YOSHINAO;OSHIO MASAHIRO;KIKUCHI TAKAYUKI;NISHIDA TOSHIHIRO;TAKAHASHI MASAYUKI |
分类号 |
G01C19/56 |
主分类号 |
G01C19/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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