JPS6451797A - Noise excluding microphone equipment - Google Patents
Noise excluding microphone equipmentInfo
- Publication number
- JPS6451797A JPS6451797A JP20818387A JP20818387A JPS6451797A JP S6451797 A JPS6451797 A JP S6451797A JP 20818387 A JP20818387 A JP 20818387A JP 20818387 A JP20818387 A JP 20818387A JP S6451797 A JPS6451797 A JP S6451797A
- Authority
- JP
- Japan
- Prior art keywords
- microphone
- case
- noise
- microphone equipment
- distance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
PURPOSE:To transmit only a desired sound without picking up a noise even in the case of use amid the noise by installing a first microphone and a second microphone side by side at a specified distance from a microphone case. CONSTITUTION:The first microphone M1 and the second microphone M2 are installed side by side in the microphone case 1. The distance from the microphone M1 to the front surface of the case 1 is made smaller than the distance from the microphone M2 to the front surface of the case 1. The sound, incident from the side of the case 1, is inputted to the two microphones M1, M2, but does not appear at an output terminal 9 because of being canceled by each other. Thus, even if it is used amid the noise, it does not pick up the noise, and only the desired sound is transmitted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20818387A JPS6451797A (en) | 1987-08-24 | 1987-08-24 | Noise excluding microphone equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20818387A JPS6451797A (en) | 1987-08-24 | 1987-08-24 | Noise excluding microphone equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6451797A true JPS6451797A (en) | 1989-02-28 |
Family
ID=16552038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20818387A Pending JPS6451797A (en) | 1987-08-24 | 1987-08-24 | Noise excluding microphone equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6451797A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0167900U (en) * | 1987-10-23 | 1989-05-01 | ||
JPH0186391U (en) * | 1987-11-27 | 1989-06-07 | ||
JP2008005439A (en) * | 2006-06-26 | 2008-01-10 | Yamaha Corp | Balanced output microphone, and method of manufacturing balanced output microphone |
WO2009142250A1 (en) * | 2008-05-20 | 2009-11-26 | 株式会社船井電機新応用技術研究所 | Integrated circuit device, sound inputting device and information processing system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS516528A (en) * | 1974-07-04 | 1976-01-20 | Sony Corp | MAIKURO FUON |
JPS62110349A (en) * | 1985-11-08 | 1987-05-21 | Matsushita Electric Ind Co Ltd | Transmitter |
-
1987
- 1987-08-24 JP JP20818387A patent/JPS6451797A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS516528A (en) * | 1974-07-04 | 1976-01-20 | Sony Corp | MAIKURO FUON |
JPS62110349A (en) * | 1985-11-08 | 1987-05-21 | Matsushita Electric Ind Co Ltd | Transmitter |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0167900U (en) * | 1987-10-23 | 1989-05-01 | ||
JPH0186391U (en) * | 1987-11-27 | 1989-06-07 | ||
JP2008005439A (en) * | 2006-06-26 | 2008-01-10 | Yamaha Corp | Balanced output microphone, and method of manufacturing balanced output microphone |
WO2009142250A1 (en) * | 2008-05-20 | 2009-11-26 | 株式会社船井電機新応用技術研究所 | Integrated circuit device, sound inputting device and information processing system |
US8824698B2 (en) | 2008-05-20 | 2014-09-02 | Funai Electric Advanced Applied Technology Research Institute Inc. | Integrated circuit device, voice input device and information processing system |
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