{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "There is provided a photodetection circuit capable of improving distance measuring performance. [0002] The photodetection circuit according to an embodiment of the present disclosure includes: an avalanche photodiode; a charging circuit that supplies a voltage to the avalanche photodiode; an input…",
  "path": "/patents/1400728",
  "publishedAt": "2026-05-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C3/08",
    "SONY SEMICONDUCTOR SOLUTIONS CORP [JP]"
  ],
  "textContent": "There is provided a photodetection circuit capable of improving distance measuring performance. [0002] The photodetection circuit according to an embodiment of the present disclosure includes: an avalanche photodiode; a charging circuit that supplies a voltage to the avalanche photodiode; an input amplifier including a comparison circuit in which a voltage level of an output terminal changes according to a comparison result between a voltage of an input terminal connected to the avalanche photodiode and a reference voltage, and a voltage control circuit that changes a potential of the reference voltage; and a state detecting circuit that sets timing for causing the voltage control circuit to change the potential of the reference voltage on the basis of a detection result of the voltage level.",
  "title": "OPTICAL DETECTION CIRCUIT AND DISTANCE MEASUREMENT DEVICE"
}