ATE19571T1 - Fernsprechapparat mit einem mit einer anti-larsen anordnung versehenen empfangsverstaerker. - Google Patents
Fernsprechapparat mit einem mit einer anti-larsen anordnung versehenen empfangsverstaerker.Info
- Publication number
- ATE19571T1 ATE19571T1 AT83402322T AT83402322T ATE19571T1 AT E19571 T1 ATE19571 T1 AT E19571T1 AT 83402322 T AT83402322 T AT 83402322T AT 83402322 T AT83402322 T AT 83402322T AT E19571 T1 ATE19571 T1 AT E19571T1
- Authority
- AT
- Austria
- Prior art keywords
- signal
- microphone
- larsen
- receiving
- telephone set
- Prior art date
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
- 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)
- Telephone Function (AREA)
- Headphones And Earphones (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Telephone Set Structure (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8220964A FR2537810A1 (fr) | 1982-12-14 | 1982-12-14 | Poste telephonique a ecoute amplifiee muni d'un dispositif antilarsen |
EP83402322A EP0114008B1 (de) | 1982-12-14 | 1983-12-02 | Fernsprechapparat mit einem mit einer anti-Larsen Anordnung versehenen Empfangsverstärker |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE19571T1 true ATE19571T1 (de) | 1986-05-15 |
Family
ID=9280090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT83402322T ATE19571T1 (de) | 1982-12-14 | 1983-12-02 | Fernsprechapparat mit einem mit einer anti-larsen anordnung versehenen empfangsverstaerker. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0114008B1 (de) |
AT (1) | ATE19571T1 (de) |
DE (1) | DE3363301D1 (de) |
FR (1) | FR2537810A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2586878B1 (fr) * | 1985-09-03 | 1987-11-13 | Radiotechnique Compelec | Poste telephonique muni d'une ecoute amplifiee et d'un dispositif anti-larsen. |
FR2611408B1 (fr) * | 1987-02-27 | 1989-05-26 | Radiotechnique Compelec | Circuit de commande d e gain d'un amplificateur d'ecoute par haut-parleur pour la suppression de l'effet larsen |
JP4651231B2 (ja) * | 2001-07-26 | 2011-03-16 | 富士通株式会社 | 光伝送システム |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3075045A (en) * | 1960-08-29 | 1963-01-22 | Bell Telephone Labor Inc | Speakerphone |
CA1186826A (en) * | 1981-03-18 | 1985-05-07 | Jin H. Yun | Loudspeaker telephone system |
-
1982
- 1982-12-14 FR FR8220964A patent/FR2537810A1/fr active Granted
-
1983
- 1983-12-02 EP EP83402322A patent/EP0114008B1/de not_active Expired
- 1983-12-02 DE DE8383402322T patent/DE3363301D1/de not_active Expired
- 1983-12-02 AT AT83402322T patent/ATE19571T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0114008B1 (de) | 1986-04-30 |
EP0114008A3 (en) | 1984-08-22 |
FR2537810B1 (de) | 1985-03-08 |
FR2537810A1 (fr) | 1984-06-15 |
EP0114008A2 (de) | 1984-07-25 |
DE3363301D1 (en) | 1986-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |