AT379265B - CIRCUIT ARRANGEMENT FOR GENERATING AN ACOUSTIC CALL SIGNAL FOR A TERMINAL IN TELECOMMUNICATIONS, IN PARTICULAR TELEPHONE SYSTEMS - Google Patents

CIRCUIT ARRANGEMENT FOR GENERATING AN ACOUSTIC CALL SIGNAL FOR A TERMINAL IN TELECOMMUNICATIONS, IN PARTICULAR TELEPHONE SYSTEMS

Info

Publication number: AT379265B
Authority: AT; Austria
Prior art keywords: telecommunications; generating; terminal; circuit arrangement; call signal
Prior art date: 1981-05-20

Application number

AT0097182A

Other languages

German (de)

Other versions

ATA97182A (en

Original Assignee

Siemens Ag

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.)

1981-05-20

Filing date

1982-03-11

Publication date

1985-12-10

1982-03-11 Application filed by Siemens Ag filed Critical Siemens Ag

1985-04-15 Publication of ATA97182A publication Critical patent/ATA97182A/en

1985-12-10 Application granted granted Critical

1985-12-10 Publication of AT379265B publication Critical patent/AT379265B/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)
Devices For Supply Of Signal Current (AREA)

AT0097182A 1981-05-20 1982-03-11 CIRCUIT ARRANGEMENT FOR GENERATING AN ACOUSTIC CALL SIGNAL FOR A TERMINAL IN TELECOMMUNICATIONS, IN PARTICULAR TELEPHONE SYSTEMS AT379265B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19813120139 DE3120139C1 (en)	1981-05-20	1981-05-20	Circuit arrangement for connecting an electronic ringer to a two-way telephone station

Publications (2)

Publication Number	Publication Date
ATA97182A ATA97182A (en)	1985-04-15
AT379265B true AT379265B (en)	1985-12-10

Family

ID=6132833

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT0097182A AT379265B (en)	1981-05-20	1982-03-11	CIRCUIT ARRANGEMENT FOR GENERATING AN ACOUSTIC CALL SIGNAL FOR A TERMINAL IN TELECOMMUNICATIONS, IN PARTICULAR TELEPHONE SYSTEMS

Country Status (4)

Country	Link
AT (1)	AT379265B (en)
BE (1)	BE893243A (en)
DE (1)	DE3120139C1 (en)
FI (1)	FI74853C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL9400314A (en) *	1994-03-01	1995-10-02	Nederland Ptt	Device for the generation of an attention signal in response to a telephone call signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT311432B (en) *	1970-10-07	1973-11-12	Siemens Ag	Circuit arrangement for generating an acoustic call signal for terminals in telecommunication systems, in particular telephone systems, by means of an oscillating circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2539415A1 (en) *	1975-09-04	1977-03-10	Siemens Ag	Two-way telephone station - has buzzer used for indicating call arrival and also has means of indicating waiting time

1981
- 1981-05-20 DE DE19813120139 patent/DE3120139C1/en not_active Expired
1982
- 1982-03-11 AT AT0097182A patent/AT379265B/en not_active IP Right Cessation
- 1982-05-19 FI FI821778A patent/FI74853C/en not_active IP Right Cessation
- 1982-05-19 BE BE0/208136A patent/BE893243A/en unknown

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT311432B (en) *	1970-10-07	1973-11-12	Siemens Ag	Circuit arrangement for generating an acoustic call signal for terminals in telecommunication systems, in particular telephone systems, by means of an oscillating circuit

Also Published As

Publication number	Publication date
FI74853C (en)	1988-03-10
DE3120139C1 (en)	1982-10-28
ATA97182A (en)	1985-04-15
FI821778A0 (en)	1982-05-19
BE893243A (en)	1982-11-19
FI74853B (en)	1987-11-30

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Legal Events

Date	Code	Title
1990-01-15	ELJ	Ceased due to non-payment of the annual fee
1994-05-15	RER	Ceased as to paragraph 5 lit. 3 law introducing patent treaties
2008-12-15	EEFA	Change of the company name