WO2005104604A1 - イヤホンマイクのハウリング現象を防止する配線法 - Google Patents
イヤホンマイクのハウリング現象を防止する配線法 Download PDFInfo
- Publication number
- WO2005104604A1 WO2005104604A1 PCT/JP2004/005960 JP2004005960W WO2005104604A1 WO 2005104604 A1 WO2005104604 A1 WO 2005104604A1 JP 2004005960 W JP2004005960 W JP 2004005960W WO 2005104604 A1 WO2005104604 A1 WO 2005104604A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- microphone
- earphone
- wiring
- earphone microphone
- wiring method
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/04—Supports for telephone transmitters or receivers
- H04M1/05—Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
Definitions
- a conventional earphone microphone has a problem in that when a receiver transmitted by an earphone microphone is received by a partner receiver, voice spoken by the partner receiver returns to the partner receiver in a time-delayed manner. The cause is that the sound of the earphone leaks to the microphone side in the earphone microphone on the transmitting side. Therefore, the items of the leak are as follows.
- An object of the present invention is to improve a wiring method of an earphone microphone and eliminate a howling phenomenon.
- the present invention provides an earphone microphone cord wiring in which an earphone signal line and a microphone signal line are separated and wired, and is caused by a current difference between the earphone current line and the microphone current line.
- the howling phenomenon is eliminated by preventing the potential difference from occurring on the common line.
- FIG. 1 is a wiring diagram of one earphone microphone.
- Figure 2 shows the wiring diagram of the binaural microphone.
- Figures 3, 4 and 5 are wiring diagrams of practical examples of the above wiring method.
- FIG. 2 is a wiring diagram of a binaural earphone microphone.
- Wiring of the conventional earphone microphone uses the concentric wire for the earphone wire and the microphone wire.
- two red wires of two earphones (SPEAKER) use the same three-core wire up to the telephone terminal.
- SPEAKER red wires of two earphones
- the earphone line and the microphone line are close to each other, the common ground line is lengthened, and the howling phenomenon caused by the potential change due to the ground current of the earphone current due to the internal resistance of the wire is eliminated.
- the present invention is suitable for a method of wiring an earphone microphone used for manufacturing an earphone microphone microphone without a howling phenomenon.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Circuit For Audible Band Transducer (AREA)
- Headphones And Earphones (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006512466A JPWO2005104604A1 (ja) | 2004-04-23 | 2004-04-23 | イヤホンマイクのハウリング現象を防止する配線法 |
PCT/JP2004/005960 WO2005104604A1 (ja) | 2004-04-23 | 2004-04-23 | イヤホンマイクのハウリング現象を防止する配線法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/005960 WO2005104604A1 (ja) | 2004-04-23 | 2004-04-23 | イヤホンマイクのハウリング現象を防止する配線法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005104604A1 true WO2005104604A1 (ja) | 2005-11-03 |
Family
ID=35197384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/005960 WO2005104604A1 (ja) | 2004-04-23 | 2004-04-23 | イヤホンマイクのハウリング現象を防止する配線法 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPWO2005104604A1 (ja) |
WO (1) | WO2005104604A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9544688B1 (en) | 2014-01-29 | 2017-01-10 | Clear-Com, LLC | Low cross-talk headset |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003188967A (ja) * | 2001-12-18 | 2003-07-04 | Sony Corp | ヘッドセット |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0520492U (ja) * | 1991-08-23 | 1993-03-12 | 株式会社オーデイオテクニカ | マイクロホン付きイヤホン |
JPH0585145U (ja) * | 1992-04-14 | 1993-11-16 | アツデン株式会社 | イヤーセット |
JPH1075288A (ja) * | 1996-06-05 | 1998-03-17 | Kazuyoshi Ito | 携帯型電話機用外部音漏れ防止具 |
JP3312100B2 (ja) * | 1996-08-07 | 2002-08-05 | ホシデン株式会社 | イヤホーンマイクロホン |
-
2004
- 2004-04-23 WO PCT/JP2004/005960 patent/WO2005104604A1/ja active Application Filing
- 2004-04-23 JP JP2006512466A patent/JPWO2005104604A1/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003188967A (ja) * | 2001-12-18 | 2003-07-04 | Sony Corp | ヘッドセット |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9544688B1 (en) | 2014-01-29 | 2017-01-10 | Clear-Com, LLC | Low cross-talk headset |
US9913021B1 (en) | 2014-01-29 | 2018-03-06 | Clear-Com, LLC | Low cross-talk headset |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005104604A1 (ja) | 2008-03-13 |
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