{
  "$type": "site.standard.document",
  "description": "A waveform of each predetermined series of vibrations included in a vibration waveform is referred to as an \"individual waveform (Wo)\". An end determination unit (34) determines an end of each individual waveform (Wo) and determines a boundary between the individual waveforms (Wo). A feature…",
  "path": "/patents/1403355",
  "publishedAt": "2024-10-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D35/027",
    "DENSO CORP [JP]"
  ],
  "textContent": "A waveform of each predetermined series of vibrations included in a vibration waveform is referred to as an \"individual waveform (Wo)\". An end determination unit (34) determines an end of each individual waveform (Wo) and determines a boundary between the individual waveforms (Wo). A feature extraction unit (33) performs an extraction work of a feature (Ps, Pm, Pe) of each individual waveform (Wo) based on a recognition of the boundary. A knocking determination unit (35) determines whether or not the feature matches with a feature of a knocking waveform for each individual waveform (Wo) whose feature is extracted by the feature extraction unit (33). Then, it is determined that a knock exists on condition that any of the features in the individual waveform is determined as the feature of the knocking waveform.",
  "title": "KNOCKING DETERMINATION DEVICE AND KNOCKING CONTROL DEVICE"
}