{
  "$type": "site.standard.document",
  "description": "A physical quantity detection circuit including a differential amplification circuit that differentially amplifies a signal pair based on a first signal containing a first physical quantity component and a first vibration leakage component and a second signal containing a second physical quantity…",
  "path": "/patents/1275499",
  "publishedAt": "2020-10-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C19/5776",
    "Seiko Epson Corporation"
  ],
  "textContent": "A physical quantity detection circuit including a differential amplification circuit that differentially amplifies a signal pair based on a first signal containing a first physical quantity component and a first vibration leakage component and a second signal containing a second physical quantity component having a phase opposite the phase of the first physical quantity component and a second vibration leakage component having the same phase as the phase of the first vibration leakage component, an adder circuit that adds the signal pair, a first synchronous wave-detection circuit that performs synchronous wave-detection on a signal based on an output signal from the differential amplification circuit, a second synchronous wave-detection circuit that performs synchronous wave-detection on a signal based on an output signal from the adder circuit, a physical quantity detection signal generation circuit that generates a physical quantity detection signal based on an output signal from the first synchronous wave-detection circuit, and a vibration leakage signal generation circuit that generates a vibration leakage signal based on an output signal from the second synchronous wave-detection circuit.",
  "title": "PHYSICAL QUANTITY DETECTION CIRCUIT, PHYSICAL QUANTITY SENSOR, ELECTRONIC INSTRUMENT, VEHICLE, AND METHOD FOR DIAGNOSING FAILURE OF PHYSICAL QUANTITY SENSOR"
}