SE397161B - DEVICE AT THE ACOUSTIC SIGNAL BODY IN TELEPHONE DEVICES - Google Patents

DEVICE AT THE ACOUSTIC SIGNAL BODY IN TELEPHONE DEVICES

Info

Publication number
SE397161B
SE397161B SE7611406A SE7611406A SE397161B SE 397161 B SE397161 B SE 397161B SE 7611406 A SE7611406 A SE 7611406A SE 7611406 A SE7611406 A SE 7611406A SE 397161 B SE397161 B SE 397161B
Authority
SE
Sweden
Prior art keywords
acoustic signal
telephone devices
signal body
telephone
devices
Prior art date
Application number
SE7611406A
Other languages
Swedish (sv)
Inventor
S E Magnusson
Original Assignee
Ellemtel Utvecklings Ab
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
Application filed by Ellemtel Utvecklings Ab filed Critical Ellemtel Utvecklings Ab
Priority to SE7611406A priority Critical patent/SE397161B/en
Priority to NL7710303A priority patent/NL7710303A/en
Priority to DE19772742748 priority patent/DE2742748A1/en
Priority to BE181300A priority patent/BE859191A/en
Priority to FR7729665A priority patent/FR2368185A1/en
Priority to CH1228277A priority patent/CH623694A5/en
Priority to ES463052A priority patent/ES463052A1/en
Priority to DK455577A priority patent/DK455577A/en
Priority to NO773519A priority patent/NO139716C/en
Priority to IT28606/77A priority patent/IT1087777B/en
Publication of SE397161B publication Critical patent/SE397161B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Telephone Function (AREA)
  • Telephonic Communication Services (AREA)
  • Devices For Supply Of Signal Current (AREA)
SE7611406A 1976-10-14 1976-10-14 DEVICE AT THE ACOUSTIC SIGNAL BODY IN TELEPHONE DEVICES SE397161B (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE7611406A SE397161B (en) 1976-10-14 1976-10-14 DEVICE AT THE ACOUSTIC SIGNAL BODY IN TELEPHONE DEVICES
NL7710303A NL7710303A (en) 1976-10-14 1977-09-20 CHAIN DEVICE FOR ACOUSTIC SIGNALING AND USE IN COMBINATION WITH A TELEPHONE SET.
DE19772742748 DE2742748A1 (en) 1976-10-14 1977-09-22 SOUND SIGNAL CIRCUIT FOR TELEPHONE SET
BE181300A BE859191A (en) 1976-10-14 1977-09-29 ACOUSTIC CALL CIRCUIT FOR TELEPHONE DEVICES
FR7729665A FR2368185A1 (en) 1976-10-14 1977-10-03 ACOUSTIC CALL CIRCUIT FOR TELEPHONE DEVICES
CH1228277A CH623694A5 (en) 1976-10-14 1977-10-07 Ringing signal circuit for a telephone set with separate lines for speech and ringing signals
ES463052A ES463052A1 (en) 1976-10-14 1977-10-08 Perfected circuit of acoustic signal emission. (Machine-translation by Google Translate, not legally binding)
DK455577A DK455577A (en) 1976-10-14 1977-10-13 ACOUSTIC SIGNAL FATHER FOR TELEPHONE DEVICES
NO773519A NO139716C (en) 1976-10-14 1977-10-13 DEVICE FOR ACOUSTIC SIGNAL BODIES IN TELEPHONE DEVICES
IT28606/77A IT1087777B (en) 1976-10-14 1977-10-14 ACOUSTIC SIGNALING CIRCUIT FOR TELEPHONE DEVICES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7611406A SE397161B (en) 1976-10-14 1976-10-14 DEVICE AT THE ACOUSTIC SIGNAL BODY IN TELEPHONE DEVICES

Publications (1)

Publication Number Publication Date
SE397161B true SE397161B (en) 1977-10-17

Family

ID=20329130

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7611406A SE397161B (en) 1976-10-14 1976-10-14 DEVICE AT THE ACOUSTIC SIGNAL BODY IN TELEPHONE DEVICES

Country Status (10)

Country Link
BE (1) BE859191A (en)
CH (1) CH623694A5 (en)
DE (1) DE2742748A1 (en)
DK (1) DK455577A (en)
ES (1) ES463052A1 (en)
FR (1) FR2368185A1 (en)
IT (1) IT1087777B (en)
NL (1) NL7710303A (en)
NO (1) NO139716C (en)
SE (1) SE397161B (en)

Also Published As

Publication number Publication date
NL7710303A (en) 1978-04-18
IT1087777B (en) 1985-06-04
CH623694A5 (en) 1981-06-15
NO139716C (en) 1979-05-02
DK455577A (en) 1978-04-15
ES463052A1 (en) 1978-07-01
FR2368185A1 (en) 1978-05-12
NO139716B (en) 1979-01-15
NO773519L (en) 1978-04-17
BE859191A (en) 1978-01-16
DE2742748A1 (en) 1978-04-20

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