SE387811B - Bidtelefonanleggning for privata telefonvexlar - Google Patents

Bidtelefonanleggning for privata telefonvexlar

Info

Publication number: SE387811B
Authority: SE; Sweden
Prior art keywords: phone system; private telephone; type phone; telephone exchangers; exchangers
Prior art date: 1973-06-12

Application number

SE7404439A

Other languages

English (en)

Other versions

SE7404439L (sv

Inventor

V Mosca

Original Assignee

Sits Soc It Telecom Siemens

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.)

1973-06-12

Filing date

1974-04-02

Publication date

1976-09-13

1974-04-02 Application filed by Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens

1974-12-13 Publication of SE7404439L publication Critical patent/SE7404439L/xx

1976-09-13 Publication of SE387811B publication Critical patent/SE387811B/sv

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
- H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Closed-Circuit Television Systems (AREA)
Sub-Exchange Stations And Push- Button Telephones (AREA)
Interconnected Communication Systems, Intercoms, And Interphones (AREA)

SE7404439A 1973-06-12 1974-04-02 Bidtelefonanleggning for privata telefonvexlar SE387811B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT25174/73A IT992562B (it)	1973-06-12	1973-06-12	Disposizione circuitale videote leponica per centrali private

Publications (2)

Publication Number	Publication Date
SE7404439L SE7404439L (sv)	1974-12-13
SE387811B true SE387811B (sv)	1976-09-13

Family

ID=11215908

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7404439A SE387811B (sv)	1973-06-12	1974-04-02	Bidtelefonanleggning for privata telefonvexlar

Country Status (7)

Country	Link
US (1)	US3939306A (sv)
JP (1)	JPS5023714A (sv)
DE (1)	DE2427629A1 (sv)
FR (1)	FR2233772B1 (sv)
GB (1)	GB1432509A (sv)
IT (1)	IT992562B (sv)
SE (1)	SE387811B (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4037250A (en) *	1974-08-22	1977-07-19	Mcgahan Everett G	Video switcher
DE3009105A1 (de) *	1980-03-10	1981-09-24	Siemens AG, 1000 Berlin und 8000 München	Schaltungsanordnung fuer ein fernsehtelefon, dessen bildschirm fuer eine farbige wiedergabe eingerichtet ist
DE3116422A1 (de) *	1981-04-24	1982-11-11	Siemens AG, 1000 Berlin und 8000 München	Digitales breitband-kommunikationssystem
US4360827A (en) *	1981-06-02	1982-11-23	Darome, Inc.	Method and means for interactive audio and video conferencing
DE3221683C2 (de) *	1982-06-04	1989-02-02	Siemens AG, 1000 Berlin und 8000 München	Nachrichtenvermittlungssystem, insbesondere Fernsprechvermittlungssystem, mit zentralen Speichereinrichtungen für digitale Sprachsignale
US4716585A (en) *	1985-04-05	1987-12-29	Datapoint Corporation	Gain switched audio conferencing network
US4686698A (en) *	1985-04-08	1987-08-11	Datapoint Corporation	Workstation for interfacing with a video conferencing network
GB8527038D0 (en) *	1985-11-02	1985-12-04	Midlands Video Systems Ltd	Switching system
US5014267A (en) *	1989-04-06	1991-05-07	Datapoint Corporation	Video conferencing network

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2206654A (en) *	1936-07-25	1940-07-02	Rca Corp	Television system
GB1173918A (en) *	1966-12-05	1969-12-10	British Telecomm Res Ltd	Improvements in or relating to Video Telephone Systems
US3525808A (en) *	1967-10-09	1970-08-25	Tracor	Method and apparatus for synchronizing television signals
US3567861A (en) *	1968-12-11	1971-03-02	Nasa	Video/sync processor

1973
- 1973-06-12 IT IT25174/73A patent/IT992562B/it active
1974
- 1974-03-26 FR FR7410308A patent/FR2233772B1/fr not_active Expired
- 1974-04-02 SE SE7404439A patent/SE387811B/sv unknown
- 1974-06-03 JP JP49061968A patent/JPS5023714A/ja active Pending
- 1974-06-07 DE DE19742427629 patent/DE2427629A1/de not_active Withdrawn
- 1974-06-10 GB GB2566474A patent/GB1432509A/en not_active Expired
- 1974-06-11 US US05/478,282 patent/US3939306A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
SE7404439L (sv)	1974-12-13
IT992562B (it)	1975-09-30
GB1432509A (en)	1976-04-22
JPS5023714A (sv)	1975-03-14
DE2427629A1 (de)	1975-01-09
US3939306A (en)	1976-02-17
FR2233772A1 (sv)	1975-01-10
FR2233772B1 (sv)	1978-08-11

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