{
  "$type": "site.standard.document",
  "description": "The circuit has a stage for signal evaluation (12) using at least one criterion that outputs a switching signal with a first state corresponding to high air quality and a second corresponding to low quality. An integrator (27) increases a characteristic value for the second state and reduces it for…",
  "path": "/patents/1102191",
  "publishedAt": "2002-08-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/008",
    "BOSCH GMBH ROBERT [DE]"
  ],
  "textContent": "The circuit has a stage for signal evaluation (12) using at least one criterion that outputs a switching signal with a first state corresponding to high air quality and a second corresponding to low quality. An integrator (27) increases a characteristic value for the second state and reduces it for the first state and a comparator (34) compares the characteristic value with a threshold and produces at least one correction signal (36,37).",
  "title": "Circuit arrangement for evaluating a signal provided by an air quality sensor"
}