SE7801902L - Kopplingsanordning for en hogtalartelefon - Google Patents
Kopplingsanordning for en hogtalartelefonInfo
- Publication number
- SE7801902L SE7801902L SE7801902A SE7801902A SE7801902L SE 7801902 L SE7801902 L SE 7801902L SE 7801902 A SE7801902 A SE 7801902A SE 7801902 A SE7801902 A SE 7801902A SE 7801902 L SE7801902 L SE 7801902L
- Authority
- SE
- Sweden
- Prior art keywords
- coupling device
- speaker phone
- speaker
- phone
- coupling
- 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)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772751261 DE2751261C3 (de) | 1977-11-16 | 1977-11-16 | Schaltungsanordnung für ein Freisprechertelefon mit selbsttätiger Signalamplitudenbegrenzung |
DE19772751248 DE2751248C3 (de) | 1977-11-16 | 1977-11-16 | Schaltungsanordnung für ein Freisprechertelefon |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7801902L true SE7801902L (sv) | 1979-05-17 |
Family
ID=25773095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7801902A SE7801902L (sv) | 1977-11-16 | 1978-02-20 | Kopplingsanordning for en hogtalartelefon |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5472906A (de) |
CH (1) | CH626485A5 (de) |
DK (1) | DK74878A (de) |
FI (1) | FI780555A (de) |
FR (1) | FR2409645A2 (de) |
GB (1) | GB1568329A (de) |
IT (1) | IT1161440B (de) |
LU (1) | LU79026A1 (de) |
NL (1) | NL7801820A (de) |
SE (1) | SE7801902L (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8317706D0 (en) * | 1983-06-29 | 1983-08-03 | Standard Telephones Cables Ltd | Telephone subsets |
US4724540A (en) * | 1986-09-02 | 1988-02-09 | Motorola, Inc. | Speakerphone with fast idle mode |
JPH06338934A (ja) * | 1993-05-25 | 1994-12-06 | Exar Corp | 事象駆動型制御回路を有するスピーカーホーン |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4051325A (en) * | 1975-01-31 | 1977-09-27 | Matsushita Electric Industrial Co., Ltd. | Speech intercommunication system |
DE2638286C3 (de) * | 1976-08-25 | 1979-03-01 | Dasy Inter S.A., Genf (Schweiz) | Schaltungsanordnung für ein Freisprechertelefon |
-
1978
- 1978-02-08 LU LU79026A patent/LU79026A1/de unknown
- 1978-02-16 GB GB6251/78A patent/GB1568329A/en not_active Expired
- 1978-02-16 FR FR7804396A patent/FR2409645A2/fr active Pending
- 1978-02-17 NL NL7801820A patent/NL7801820A/xx not_active Application Discontinuation
- 1978-02-20 FI FI780555A patent/FI780555A/fi unknown
- 1978-02-20 DK DK74878A patent/DK74878A/da not_active Application Discontinuation
- 1978-02-20 JP JP1840878A patent/JPS5472906A/ja active Pending
- 1978-02-20 SE SE7801902A patent/SE7801902L/xx unknown
- 1978-02-20 IT IT12485/78A patent/IT1161440B/it active
- 1978-02-20 CH CH182478A patent/CH626485A5/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FR2409645A2 (fr) | 1979-06-15 |
CH626485A5 (en) | 1981-11-13 |
FI780555A (fi) | 1979-05-17 |
NL7801820A (nl) | 1979-05-18 |
IT7812485A0 (it) | 1978-02-20 |
DK74878A (da) | 1979-05-17 |
GB1568329A (en) | 1980-05-29 |
JPS5472906A (en) | 1979-06-11 |
LU79026A1 (de) | 1978-06-21 |
IT1161440B (it) | 1987-03-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE7702496L (sv) | Kopplingsanordning | |
SE7812711L (sv) | Hogtalartelefon | |
SE7709497L (sv) | Kopplingsanordning for en hogtalartelefon | |
FR2382822B1 (fr) | Dispositif pour haut-parleur electrodynamique | |
FR2379220B1 (fr) | Haut-parleur a cornet | |
SE7905299L (sv) | Anropsteckningsanordning | |
SE7803396L (sv) | Kopplingsanordning | |
SE7803749L (sv) | Akustisk vaganordning | |
NO150300C (no) | Telefon-adapter | |
SE7800898L (sv) | Ljuddempande anordning vid en mekanisk press | |
AT350476B (de) | Fahrbare einrichtung | |
DK235977A (da) | Overbelastningsbeskyttelseskobling for en hojttaleranordning | |
SE7801902L (sv) | Kopplingsanordning for en hogtalartelefon | |
DK5678A (da) | Konferencefelefonapparat | |
SE7812509L (sv) | Kopplingsanordning for direktval i en formedlingsanleggning serskilt telefonformedlingsanleggning | |
FR2405602B1 (fr) | Telephone a prepaiement | |
IT1099515B (it) | Dispositivo di fissaggio per un apparecchio telefonico | |
SE7800605L (sv) | Mikrofon for en handmikrotelefon | |
IT1092139B (it) | Ricevitore microtelefonico a maniglia per apparecchi telefonici | |
SE7711641L (sv) | Hogtalaranordning | |
SE7800047L (sv) | Kopplingsapparat | |
PL196967A1 (pl) | Aparat telefoniczny | |
DK246478A (da) | Pult til anbringelse under et telefonapparat | |
DK302778A (da) | Telefonapparat | |
AR215527A1 (es) | Trasductor telefonico |