FI874140A0 - Elektronisk haollkrets foer via en abonnentledning matade tvaovaegstelefoner. - Google Patents

Elektronisk haollkrets foer via en abonnentledning matade tvaovaegstelefoner.

Info

Publication number: FI874140A0
Authority: FI; Finland
Prior art keywords: tvaovaegstelefoner; matade; haollkrets; abonnentledning; elektronisk
Prior art date: 1986-09-23

Application number

FI874140A

Other languages

English (en)

Other versions

FI874140A (fi

Inventor

Wolfgang Strzeletz

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.)

1986-09-23

Filing date

1987-09-22

Publication date

1987-09-22

1987-09-22 Application filed by Siemens Ag filed Critical Siemens Ag

1987-09-22 Publication of FI874140A0 publication Critical patent/FI874140A0/fi

1988-03-24 Publication of FI874140A publication Critical patent/FI874140A/fi

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/58—Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
- H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Interface Circuits In Exchanges (AREA)

FI874140A 1986-09-23 1987-09-22 Elektronisk haollkrets foer via en abonnentledning matade tvaovaegstelefoner. FI874140A (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE3632200		1986-09-23

Publications (2)

Publication Number	Publication Date
FI874140A0 true FI874140A0 (fi)	1987-09-22
FI874140A FI874140A (fi)	1988-03-24

Family

ID=6310099

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI874140A FI874140A (fi)	1986-09-23	1987-09-22	Elektronisk haollkrets foer via en abonnentledning matade tvaovaegstelefoner.

Country Status (4)

Country	Link
EP (1)	EP0264644A3 (fi)
AU (1)	AU600523B2 (fi)
FI (1)	FI874140A (fi)
IN (1)	IN167984B (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IN164858B (fi) *	1986-09-11	1989-06-17	Siemens Ag
ES2046112B1 (es) *	1992-04-24	1996-11-16	Revenga Ingenieros S A	Equipo telefonico para lineas directas punto a punto.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL7907134A (nl) *	1979-09-25	1981-03-27	Ericsson Telefon Mij	Telefooninstallatie van de als sterpuntinstallatie aangeduide soort.
AT377606B (de) *	1981-08-07	1985-04-10	Dynamit Nobel Ag	Sprengmomentzuender
US4490583A (en) *	1983-02-14	1984-12-25	Circom, Inc.	Plural line telephone controller
JPS6152053A (ja) *	1984-08-20	1986-03-14	Nec Corp	ダイヤルインパルス送出回路
IN164858B (fi) *	1986-09-11	1989-06-17	Siemens Ag

1987
- 1987-08-03 IN IN599/CAL/87A patent/IN167984B/en unknown
- 1987-09-21 EP EP87113787A patent/EP0264644A3/de not_active Withdrawn
- 1987-09-22 FI FI874140A patent/FI874140A/fi not_active IP Right Cessation
- 1987-09-22 AU AU78835/87A patent/AU600523B2/en not_active Ceased

Also Published As

Publication number	Publication date
EP0264644A2 (de)	1988-04-27
IN167984B (fi)	1991-01-19
AU7883587A (en)	1988-03-31
AU600523B2 (en)	1990-08-16
FI874140A (fi)	1988-03-24
EP0264644A3 (de)	1989-06-14

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Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: SIEMENS AKTIENGESELLSCHAFT