DE69937380D1 - Sprachvermittlungssystem mit verbesserter Konversationsqualität - Google Patents
Sprachvermittlungssystem mit verbesserter KonversationsqualitätInfo
- Publication number
- DE69937380D1 DE69937380D1 DE69937380T DE69937380T DE69937380D1 DE 69937380 D1 DE69937380 D1 DE 69937380D1 DE 69937380 T DE69937380 T DE 69937380T DE 69937380 T DE69937380 T DE 69937380T DE 69937380 D1 DE69937380 D1 DE 69937380D1
- Authority
- DE
- Germany
- Prior art keywords
- exchange system
- voice exchange
- conversation quality
- improved conversation
- improved
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Telephone Function (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP01512298A JP3220979B2 (ja) | 1998-01-09 | 1998-01-09 | 音声スイッチ |
JP1512298 | 1998-01-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69937380D1 true DE69937380D1 (de) | 2007-12-06 |
DE69937380T2 DE69937380T2 (de) | 2008-02-14 |
Family
ID=11880027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69937380T Expired - Lifetime DE69937380T2 (de) | 1998-01-09 | 1999-01-11 | Sprachvermittlungssystem mit verbesserter Konversationsqualität |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0929174B1 (de) |
JP (1) | JP3220979B2 (de) |
KR (1) | KR19990067811A (de) |
AU (1) | AU755658B2 (de) |
DE (1) | DE69937380T2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3553008B2 (ja) * | 2000-09-26 | 2004-08-11 | 岩崎通信機株式会社 | エコー低減方法および電話装置 |
JP4161628B2 (ja) | 2002-07-19 | 2008-10-08 | 日本電気株式会社 | エコー抑圧方法及び装置 |
US7894598B2 (en) * | 2004-12-14 | 2011-02-22 | Nuance Communications, Inc. | System for limiting receive audio |
DE112007003625T5 (de) | 2007-08-24 | 2010-07-15 | Fujitsu Ltd., Kawasaki | Echounterdrückungsvorrichtung, echounterdrückungssystem, Echounterdrückungsverfahren und Computerprogramm |
JP4900185B2 (ja) * | 2007-10-16 | 2012-03-21 | パナソニック電工株式会社 | 拡声通話装置 |
JP5809418B2 (ja) | 2011-02-17 | 2015-11-10 | シャープ株式会社 | 電子機器、電子機器の制御方法、制御プログラムおよび記録媒体 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6016773B2 (ja) * | 1976-12-14 | 1985-04-27 | 日本電気株式会社 | 双方向通話検出器 |
US4724540A (en) * | 1986-09-02 | 1988-02-09 | Motorola, Inc. | Speakerphone with fast idle mode |
JP2751244B2 (ja) * | 1988-02-18 | 1998-05-18 | 日本電気株式会社 | ハンズフリー回路及びハンズフリー制御方式 |
JP2634946B2 (ja) * | 1990-11-19 | 1997-07-30 | 日本電気株式会社 | ハンズフリー補助回路 |
JP3076072B2 (ja) * | 1991-02-19 | 2000-08-14 | 日本電気株式会社 | 拡声電話装置および該装置に用いる騒音抑圧回路 |
JPH04323938A (ja) * | 1991-04-23 | 1992-11-13 | Toshiba Corp | ハンズフリー回路 |
CA2052351C (en) * | 1991-09-27 | 2000-05-23 | Gordon J. Reesor | Telephone handsfree algorithm |
JPH0678046A (ja) * | 1992-08-25 | 1994-03-18 | Fujitsu Ltd | ハンズフリー・システムで用いられる音声スイッチ |
US5668871A (en) * | 1994-04-29 | 1997-09-16 | Motorola, Inc. | Audio signal processor and method therefor for substantially reducing audio feedback in a cummunication unit |
JPH08204619A (ja) * | 1995-01-26 | 1996-08-09 | Nec Corp | エコーサプレッサ |
JPH08335976A (ja) * | 1995-06-06 | 1996-12-17 | Kobe Steel Ltd | 拡声通話装置 |
DE19620031C1 (de) * | 1996-05-17 | 1997-05-28 | Siemens Ag | Verfahren zur automatischen Justierung einer Schalteinrichtung zum automatischen Umschalten zwischen einer Empfangsbetriebsart und einer Sendebetriebsart bei einer Freisprecheinrichtung eines Kommunikationsendgerätes |
US5857019A (en) * | 1996-06-11 | 1999-01-05 | Siemens Business Communication Systems, Inc. | Apparatus and method for providing a telephone user with control of the threshold volume at which the user's voice will take control of a half-duplex speakerphone conversation |
-
1998
- 1998-01-09 JP JP01512298A patent/JP3220979B2/ja not_active Expired - Fee Related
-
1999
- 1999-01-08 AU AU10081/99A patent/AU755658B2/en not_active Ceased
- 1999-01-09 KR KR1019990000328A patent/KR19990067811A/ko not_active Application Discontinuation
- 1999-01-11 DE DE69937380T patent/DE69937380T2/de not_active Expired - Lifetime
- 1999-01-11 EP EP99100441A patent/EP0929174B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU755658B2 (en) | 2002-12-19 |
AU1008199A (en) | 1999-07-29 |
JPH11205199A (ja) | 1999-07-30 |
EP0929174B1 (de) | 2007-10-24 |
DE69937380T2 (de) | 2008-02-14 |
EP0929174A2 (de) | 1999-07-14 |
EP0929174A3 (de) | 2005-03-16 |
JP3220979B2 (ja) | 2001-10-22 |
KR19990067811A (ko) | 1999-08-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |