SE431046B - Ledningsstyranordning for tangenttelefonsystem for styrning av kvarhallningsfunktionen mellan en telefonvexel och atminstone en abonnentapparat - Google Patents

Ledningsstyranordning for tangenttelefonsystem for styrning av kvarhallningsfunktionen mellan en telefonvexel och atminstone en abonnentapparat

Info

Publication number: SE431046B
Authority: SE; Sweden
Prior art keywords: quarching; atminstone; function; control; phone
Prior art date: 1976-07-28

Application number

SE7708291A

Other languages

English (en)

Swedish (sv)

Other versions

SE7708291L (sv

Inventor

R J Angner

M L Blount

J V Lacy

Original Assignee

Western Electric Co

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.)

1976-07-28

Filing date

1977-07-18

Publication date

1983-12-27

1977-07-18 Application filed by Western Electric Co filed Critical Western Electric Co

1978-01-29 Publication of SE7708291L publication Critical patent/SE7708291L/

1983-12-27 Publication of SE431046B publication Critical patent/SE431046B/xx

Links

Classifications

- 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
- H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
- H04M9/006—Exchange line circuits

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Sub-Exchange Stations And Push- Button Telephones (AREA)
Devices For Supply Of Signal Current (AREA)
Monitoring And Testing Of Exchanges (AREA)
Interface Circuits In Exchanges (AREA)

SE7708291A 1976-07-28 1977-07-18 Ledningsstyranordning for tangenttelefonsystem for styrning av kvarhallningsfunktionen mellan en telefonvexel och atminstone en abonnentapparat SE431046B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/708,857 US4057693A (en)	1976-07-28	1976-07-28	Logic control for electronic key telephone line circuit

Publications (2)

Publication Number	Publication Date
SE7708291L SE7708291L (sv)	1978-01-29
SE431046B true SE431046B (sv)	1983-12-27

Family

ID=24847442

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7708291A SE431046B (sv)	1976-07-28	1977-07-18	Ledningsstyranordning for tangenttelefonsystem for styrning av kvarhallningsfunktionen mellan en telefonvexel och atminstone en abonnentapparat

Country Status (9)

Country	Link
US (1)	US4057693A (fr)
JP (1)	JPS581875B2 (fr)
AU (1)	AU514725B2 (fr)
BE (1)	BE857036A (fr)
CA (1)	CA1079428A (fr)
DE (1)	DE2733476C2 (fr)
FR (1)	FR2360217A1 (fr)
GB (1)	GB1562956A (fr)
SE (1)	SE431046B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4194093A (en) *	1978-11-29	1980-03-18	International Telephone And Telegraph Corporation	Key system protective apparatus
US4323735A (en) *	1980-09-26	1982-04-06	Bell Telephone Laboratories, Inc.	Key telephone line shunt detector circuit
US4311880A (en) *	1980-11-10	1982-01-19	Bell Telephone Laboratories, Incorporated	Key telephone hold arrangement
US4803718A (en) *	1987-03-06	1989-02-07	Tree Technologies Corporation	Hold detecting and control circuit for a key telephone system
JP3046229B2 (ja) *	1995-10-04	2000-05-29	キヤノン株式会社	電話装置
JP4014762B2 (ja) *	1999-07-09	2007-11-28	松下電器産業株式会社	主装置および電話制御装置
US20030110431A1 (en) *	2001-12-10	2003-06-12	International Business Machines Corporation	Scanning an allowed value into a group of latches

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
USRE29078E (en)	1974-03-29	1976-12-14	Bell Telephone Laboratories, Incorporated	Key telephone system
US3920928A (en) *	1974-03-29	1975-11-18	Bell Telephone Labor Inc	Line control circuit
US3895192A (en) *	1974-07-25	1975-07-15	Bell Telephone Labor Inc	Telephone line circuit hold control arrangement
US3925625A (en) *	1974-07-25	1975-12-09	Bell Telephone Labor Inc	Transient controlled telephone line circuit

1976
- 1976-07-28 US US05/708,857 patent/US4057693A/en not_active Expired - Lifetime
1977
- 1977-07-18 SE SE7708291A patent/SE431046B/xx not_active IP Right Cessation
- 1977-07-20 CA CA283,141A patent/CA1079428A/fr not_active Expired
- 1977-07-22 FR FR7722591A patent/FR2360217A1/fr active Granted
- 1977-07-22 BE BE179543A patent/BE857036A/fr not_active IP Right Cessation
- 1977-07-25 DE DE2733476A patent/DE2733476C2/de not_active Expired
- 1977-07-26 AU AU27316/77A patent/AU514725B2/en not_active Expired
- 1977-07-26 GB GB31250/77A patent/GB1562956A/en not_active Expired
- 1977-07-28 JP JP52089901A patent/JPS581875B2/ja not_active Expired

Also Published As

Publication number	Publication date
JPS581875B2 (ja)	1983-01-13
AU514725B2 (en)	1981-02-26
DE2733476A1 (de)	1978-02-02
US4057693A (en)	1977-11-08
AU2731677A (en)	1979-02-01
JPS5317007A (en)	1978-02-16
CA1079428A (fr)	1980-06-10
FR2360217B1 (fr)	1981-08-28
GB1562956A (en)	1980-03-19
BE857036A (fr)	1977-11-14
DE2733476C2 (de)	1982-03-18
SE7708291L (sv)	1978-01-29
FR2360217A1 (fr)	1978-02-24

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Legal Events

Date

Code

Title

Description

1995-01-31

NUG

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