{
  "$type": "site.standard.document",
  "description": "A microelectromechanical device includes a body (2a), a movable mass (2b), elastically connected to the body (6; 106) and movable in accordance with a degree of freedom, and a driving device (6), coupled to the movable mass (2b) and configured to maintain the movable mass (2b) in oscillation at a…",
  "path": "/patents/1011651",
  "publishedAt": "2011-06-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C19/56",
    "ST MICROELECTRONICS SRL [IT]"
  ],
  "textContent": "A microelectromechanical device includes a body (2a), a movable mass (2b), elastically connected to the body (6; 106) and movable in accordance with a degree of freedom, and a driving device (6), coupled to the movable mass (2b) and configured to maintain the movable mass (2b) in oscillation at a steady working frequency ( É D ) in a normal operating mode. The microelectromechanical device moreover includes a start-up device (7, 8, 10), which is activatable in a start-up operating mode and is configured to compare a current oscillation frequency ( É A ) of a first signal (CK A ) correlated to oscillation of the movable mass (2b) with a reference frequency ( É R ), and for deciding, on the basis of the comparison between the current oscillation frequency ( É A ) and the reference frequency ( É R ), whether to supply to the movable mass (2b) a forcing signal packet (V F ) so as to transfer energy to the movable mass (2b).",
  "title": "Microelectromechanical device having an oscillating mass, and method for controlling a microelectromechanical device having an oscillating mass"
}