IT1182066B - Procedimento per generare un segnale acustico di chiamata - Google Patents

Procedimento per generare un segnale acustico di chiamata

Info

Publication number
IT1182066B
IT1182066B IT48359/85A IT4835985A IT1182066B IT 1182066 B IT1182066 B IT 1182066B IT 48359/85 A IT48359/85 A IT 48359/85A IT 4835985 A IT4835985 A IT 4835985A IT 1182066 B IT1182066 B IT 1182066B
Authority
IT
Italy
Prior art keywords
procedure
generating
call signal
audio call
audio
Prior art date
Application number
IT48359/85A
Other languages
English (en)
Other versions
IT8548359A0 (it
Inventor
Willi Gunter
Original Assignee
Telefonbau & Normalzeit Gmbh
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 Telefonbau & Normalzeit Gmbh filed Critical Telefonbau & Normalzeit Gmbh
Publication of IT8548359A0 publication Critical patent/IT8548359A0/it
Application granted granted Critical
Publication of IT1182066B publication Critical patent/IT1182066B/it

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)
  • Devices For Supply Of Signal Current (AREA)
  • Telephonic Communication Services (AREA)
IT48359/85A 1984-07-21 1985-07-26 Procedimento per generare un segnale acustico di chiamata IT1182066B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843426915 DE3426915A1 (de) 1984-07-21 1984-07-21 Verfahren zur erzeugung eines akustischen rufsignals

Publications (2)

Publication Number Publication Date
IT8548359A0 IT8548359A0 (it) 1985-07-26
IT1182066B true IT1182066B (it) 1987-09-30

Family

ID=6241212

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48359/85A IT1182066B (it) 1984-07-21 1985-07-26 Procedimento per generare un segnale acustico di chiamata

Country Status (2)

Country Link
DE (1) DE3426915A1 (it)
IT (1) IT1182066B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1287417C (en) * 1988-03-04 1991-08-06 Guy Charles Quesnel Digital composite tone alerting
DE19620624C2 (de) * 1996-05-22 2002-10-24 Siemens Ag Kommunikationsendgerät mit Vorrichtung zur akustischen Signalisierung eines vermittlungstechnischen Zustandes
WO2002048997A2 (en) * 2000-12-13 2002-06-20 Koninklijke Philips Electronics N.V. Electroacoustic apparatus having ringing signal generation means capable of producing a subjective bass perception

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520532B2 (de) * 1975-05-07 1978-09-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung für eine Ruftoneinrichtung für Fernmelde-, insbesondere Fernsprechanlagen
DE2816782C3 (de) * 1978-04-18 1980-12-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zum Erzeugen eines akustischen Rufsignales in Teilnehmerstationen von Fernmelde-, insbesondere Fernsprechanlagen
DE2924752C2 (de) * 1979-06-20 1984-02-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Tongenerator zur Erzeugung von Signalisierungsfrequenzen in einem MFV-Fernsprechapparat

Also Published As

Publication number Publication date
DE3426915A1 (de) 1986-01-30
DE3426915C2 (it) 1987-05-14
IT8548359A0 (it) 1985-07-26

Similar Documents

Publication Publication Date Title
DE3572743D1 (en) Tone signal generating apparatus
GB2103004B (en) Circuit for distorting an audio signal
FR2572614B1 (fr) Ecouteur electroacoustique
MX158312A (es) Amplificador digital de audio
DK68386A (da) Hoejttaler
GB2166585B (en) An acoustic apparatus
IT1176152B (it) Generatore di segnali di chiamata telefonica
DK62484D0 (da) Kombineret transducerenhed til mikrotelefon
GB8414088D0 (en) Sound reproducing apparatus
GB2160070B (en) Sound reproduction system
IT1182066B (it) Procedimento per generare un segnale acustico di chiamata
JPS5711400A (en) Sound generating system
IT1185443B (it) Apparecchio di collegamento
GB8517547D0 (en) Audio signal generating system
GB2163021B (en) Audio signal generator
JPS57196700A (en) Multichannel acoustic signal generator
JPS57164799A (en) Signal sound generator
IT8224906A0 (it) Generatore di segnali temporalmente correlati.
JPS5719798A (en) Acoustic signal generating circuit
KR860002080U (ko) 전화기용 보청장치
IT8415113V0 (it) Altoparlante per alte frequenze
KR860006912U (ko) 요크레스 다이나믹 스피커
KR860000993U (ko) 음성 험 방지회로
JPS5762095A (en) Voice signal time base conversion processing system
KR860003248U (ko) 음향기기용 캐비네트