FI780555A - KOPPLINGSANORDNING FOER EN SNABBTELEFON - Google Patents

KOPPLINGSANORDNING FOER EN SNABBTELEFON

Info

Publication number
FI780555A
FI780555A FI780555A FI780555A FI780555A FI 780555 A FI780555 A FI 780555A FI 780555 A FI780555 A FI 780555A FI 780555 A FI780555 A FI 780555A FI 780555 A FI780555 A FI 780555A
Authority
FI
Finland
Prior art keywords
snabbtelefon
kopplingsanordning foer
kopplingsanordning
foer
Prior art date
Application number
FI780555A
Other languages
Finnish (fi)
Inventor
Joergen Brosow
Original Assignee
Dasy Int Sa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19772751248 external-priority patent/DE2751248C3/en
Priority claimed from DE19772751261 external-priority patent/DE2751261C3/en
Application filed by Dasy Int Sa filed Critical Dasy Int Sa
Publication of FI780555A publication Critical patent/FI780555A/en

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
FI780555A 1977-11-16 1978-02-20 KOPPLINGSANORDNING FOER EN SNABBTELEFON FI780555A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772751248 DE2751248C3 (en) 1977-11-16 1977-11-16 Circuit arrangement for a hands-free telephone
DE19772751261 DE2751261C3 (en) 1977-11-16 1977-11-16 Circuit arrangement for a hands-free telephone with automatic signal amplitude limitation

Publications (1)

Publication Number Publication Date
FI780555A true FI780555A (en) 1979-05-17

Family

ID=25773095

Family Applications (1)

Application Number Title Priority Date Filing Date
FI780555A FI780555A (en) 1977-11-16 1978-02-20 KOPPLINGSANORDNING FOER EN SNABBTELEFON

Country Status (10)

Country Link
JP (1) JPS5472906A (en)
CH (1) CH626485A5 (en)
DK (1) DK74878A (en)
FI (1) FI780555A (en)
FR (1) FR2409645A2 (en)
GB (1) GB1568329A (en)
IT (1) IT1161440B (en)
LU (1) LU79026A1 (en)
NL (1) NL7801820A (en)
SE (1) SE7801902L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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 (en) * 1993-05-25 1994-12-06 Exar Corp Speaker horn with phenomenon driving type control circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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 (en) * 1976-08-25 1979-03-01 Dasy Inter S.A., Genf (Schweiz) Circuit arrangement for a hands-free telephone

Also Published As

Publication number Publication date
DK74878A (en) 1979-05-17
GB1568329A (en) 1980-05-29
CH626485A5 (en) 1981-11-13
JPS5472906A (en) 1979-06-11
NL7801820A (en) 1979-05-18
SE7801902L (en) 1979-05-17
IT7812485A0 (en) 1978-02-20
LU79026A1 (en) 1978-06-21
IT1161440B (en) 1987-03-18
FR2409645A2 (en) 1979-06-15

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