{
  "$type": "site.standard.document",
  "description": "To provide an \"in-vehicle communication support system\" that cancels an unnecessary sound and relays an uttered voice. [0002] A transfer function of a first variable filter (71) is updated so as to output, from an output (M) of a first seat microphone (5), a cancel sound (C) that minimizes a level…",
  "path": "/patents/1414237",
  "publishedAt": "2024-05-22T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R16/02",
    "ALPS ALPINE CO LTD [JP]"
  ],
  "textContent": "To provide an \"in-vehicle communication support system\" that cancels an unnecessary sound and relays an uttered voice. [0002] A transfer function of a first variable filter (71) is updated so as to output, from an output (M) of a first seat microphone (5), a cancel sound (C) that minimizes a level of a signal obtained by subtracting an output of an auxiliary filter (75) that generates a correction signal for correcting a difference between positions of the first seat microphone (5) and the first seat. In the ICC mode in which the uttered voice of the user in the first seat is output from a second seat speaker (4), a selector (6) sets an uttered voice Dp output from the second seat speaker (4) as an input to the first variable filter (71), and in the non-ICC mode, the selector (6) sets an output sound (A2) of a second seat audio source (2) output from the second seat speaker (4) as an input to the first variable filter (71). The uttered voice Dp is generated by removing a component of the cancel sound (C) from the output (M) of the first seat microphone (5).",
  "title": "IN-VEHICLE COMMUNICATION SUPPORT SYSTEM"
}