Microphone

Patent metadata

Field	Value
Publication number	US-2016234594-A1
Application number	US-201615099252-A
Country	US
Kind code	A1
Filing date	Apr 14, 2016
Priority date	Oct 15, 2013
Publication date	Aug 11, 2016
Grant date	—

Abstract

A microphone structure has a diaphragm; a frame of which an inside is processed in a shape of a semispherical surface, a parabolic surface, or a conical surface; an acoustic transducer that converts sound pressure into an electric signal; and a wire that transmits the electric signal from the acoustic transducer to outside. A sound pressure input surface of the acoustic transducer is disposed on a bottom surface portion of the semispherical surface, the parabolic surface, or the conical surface inside the frame. The diaphragm and the frame, and the frame and the wire include waterproof mechanisms preventing ingress of water.

First claim

What is claimed is:

1 . A microphone that is disposed in a vehicle, the microphone comprising:
a diaphragm; a frame of which an inside is processed in a shape of a semispherical surface, a parabolic surface, or a conical surface; an acoustic transducer that converts sound pressure into an electric signal; and a wire that transmits the electric signal from the acoustic transducer to outside, wherein a sound pressure input surface of the acoustic transducer is disposed on a bottom surface portion of the semispherical surface, the parabolic surface, or the conical surface inside the frame, and wherein the diaphragm and the frame, and the frame and the wire include waterproof mechanisms preventing ingress of water.

2 . A microphone that is disposed in a vehicle, the microphone comprising:
a diaphragm; a frame of which an inside is processed in a shape of a semispherical surface, a parabolic surface, or a conical surface; an acoustic transducer that converts sound pressure into an electric signal; and a wire that transmits the electric signal from the acoustic transducer to outside, wherein a sound pressure input surface of the acoustic transducer is disposed to be opposite to a bottom surface portion of the semispherical surface, the parabolic surface, or the conical surface inside the frame, and wherein the diaphragm and the frame, and the frame and the wire include waterproof mechanisms preventing ingress of water.

3 . The microphone according to claim 1 ,
wherein in the diaphragm and the frame, and the frame and the wire, resins are coated as the waterproof mechanisms preventing the ingress of the water.

4 . The microphone according to claim 1 ,
wherein an O ring is disposed as the waterproof mechanism preventing the ingress of the water between the diaphragm and the frame.

5 . The microphone according to claim 1 ,
wherein a packing is disposed to be inserted between the diaphragm and the frame as the waterproof mechanism preventing the ingress of the water between the diaphragm and the frame.

6 . A microphone that is disposed in a vehicle, the microphone comprising:
a diaphragm; a frame of which an inside is processed in a shape of a semispherical surface, a parabolic surface, or a conical surface and in which a partition wall is disposed; a plurality of acoustic transducers that convert sound pressure into electric signals; and a plurality of wires that transmit the electric signals from the plurality of acoustic transducers to outside, wherein sound pressure input surfaces of the plurality of acoustic transducers are disposed on a bottom surface portion of the semispherical surface, the parabolic surface, or the conical surface inside the frame with the partition wall inside the frame interposed therebetween, and wherein the diaphragm and the frame, and the frame and the plurality of wires include waterproof mechanisms preventing ingress of water.

7 . A vehicle trunk opening and closing system comprising:
a microphone that collects a voice spoken by a talker; a voice recognition device that uses a pre-decided specific spoken voice as a voice key; a signal processor that outputs an instruction signal to open or close a trunk of a vehicle according to information from the voice recognition device; and a mechanism that mechanically opens or closes the trunk of the vehicle, wherein the microphone according to claim 1 is used as the microphone.

8 . A vehicle door opening and closing system comprising:
a microphone that collects a voice spoken by a talker; a voice recognition device that uses a pre-decided specific spoken voice as a voice key; a signal processor that outputs an instruction signal to open or close a door of a vehicle according to information from the voice recognition device; and a mechanism that mechanically opens or closes the door of the vehicle, wherein the microphone according to claim 1 is used as the microphone.

9 . A vehicle light illumination system comprising:
a microphone that collects a voice spoken by a talker; a voice recognition device that uses a pre-decided specific spoken voice as a voice key; a signal processor that outputs an instruction signal to turning on or off a light of a vehicle according to information from the voice recognition device; and a mechanism that turns on or off the light of the vehicle, wherein the microphone according to claim 1 is used as the microphone.

10 . The vehicle trunk opening and closing system according to claim 7 ,
wherein a voice instruction to prompt a spoken voice input is given to the talker through a speaker.

11 . The vehicle door opening and closing system according to claim 8 ,
wherein a voice instruction to prompt a spoken voice input is given to the talker through a speaker.

12 . The vehicle light illumination system according to claim 9 ,
wherein a voice instruction to prompt a spoken voice input is given to the talker through a speaker.

13 . A sound source direction estimation device for which a plurality of microphones are disposed in an own vehicle to detect a traveling sound of another vehicle and which estimates a sound source direction of the another vehicle,
wherein the microphones disposed in the own vehicle is the microphone according to claim 1 .

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Ogura Hiroshi
• Doi Kazumoto
• Takeshi Futoshi

Classifications

• B60R16/0373

  Voice control (in general G10L) · CPC title

• H04R2499/13

  Acoustic transducers and sound field adaptation in vehicles · CPC title

• H04R1/44 Primary

  Special adaptations for subaqueous use, e.g. for hydrophone · CPC title

• G10L2015/223

  Execution procedure of a spoken command · CPC title

• G10L17/24

  the user being prompted to utter a password or a predefined phrase · CPC title