{
  "$type": "site.standard.document",
  "description": "As a vertical motion motor (M2) comprised of a brushless motor is driven to rotate in response to a control signal from a main controller (10), a pulse signal generated with the shape corresponding to the number of rotations of the vertical motion motor (M2) is counted by a pulse signal count unit…",
  "path": "/patents/1077928",
  "publishedAt": "2005-05-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R1/07",
    "MURAKAMI CORP [JP]"
  ],
  "textContent": "As a vertical motion motor (M2) comprised of a brushless motor is driven to rotate in response to a control signal from a main controller (10), a pulse signal generated with the shape corresponding to the number of rotations of the vertical motion motor (M2) is counted by a pulse signal count unit of the main controller (10). Feedback control is exercised over the number of rotations of the vertical motion motor (M2) in accordance with a count value (the number of counts) of the pulse signal, so that mirror surface orientation of a door mirror (2) can be accurately adjusted to tilt downward to a predetermined set angle, and to tilt upward back to a home position angle. A mirror angle control apparatus (1) is provided with high durability and reliability, which can exercise accurate control for a long period of time.",
  "title": "Mirror angle control apparatus for vehicular electric mirror assembly"
}