BE873611A - Perfectionnements relatifs aux dispositifs de telediffusion par cables ou relatifs a ceux-ci - Google Patents

Perfectionnements relatifs aux dispositifs de telediffusion par cables ou relatifs a ceux-ci

Info

Publication number: BE873611A
Authority: BE; Belgium
Prior art keywords: cable broadcasting; broadcasting devices; devices; improvements related; cable
Prior art date: 1978-01-23

Application number

BE2057556A

Other languages

English (en)

Inventor

E J Gargini

Original Assignee

Communications Patents Ltd

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.)

1978-01-23

Filing date

1979-01-22

Publication date

1979-05-16

1979-01-22 Application filed by Communications Patents Ltd filed Critical Communications Patents Ltd

1979-05-16 Publication of BE873611A publication Critical patent/BE873611A/fr

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17345—Control of the passage of the selected programme
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N2007/1739—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream communication being transmitted via a separate link, e.g. telephone line

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Optical Communication System (AREA)
Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

BE2057556A 1978-01-23 1979-01-22 Perfectionnements relatifs aux dispositifs de telediffusion par cables ou relatifs a ceux-ci BE873611A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB2572/78A GB1586543A (en)	1978-01-23	1978-01-23	Wired broadcasting systems

Publications (1)

Publication Number	Publication Date
BE873611A true BE873611A (fr)	1979-05-16

Family

ID=9741939

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE2057556A BE873611A (fr)	1978-01-23	1979-01-22	Perfectionnements relatifs aux dispositifs de telediffusion par cables ou relatifs a ceux-ci

Country Status (12)

Country	Link
JP (1)	JPS54116105A (fr)
AU (1)	AU4254878A (fr)
BE (1)	BE873611A (fr)
DE (1)	DE2900813A1 (fr)
ES (1)	ES476249A1 (fr)
FR (1)	FR2415404A1 (fr)
GB (1)	GB1586543A (fr)
IL (1)	IL56182A0 (fr)
IT (1)	IT1158175B (fr)
NL (1)	NL7900520A (fr)
SE (1)	SE7900540L (fr)
ZA (1)	ZA787225B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3013533A1 (de) *	1980-04-08	1981-10-15	Siemens Ag	Schaltungsanordnung mit einer laserdiode zur uebertragung von nachrichtensiglnalen ueber einen lichtwellenleiter
DE3224406A1 (de) *	1981-07-01	1983-01-20	Canon K.K., Tokyo	Bilduebertragungssystem
MY112412A (en) *	1993-10-14	2001-06-30	Nuchem Australia Pty Ltd	Multimedia enabled network.
GB2296169A (en) *	1994-12-14	1996-06-19	Metrovideo Ltd	Video transmission systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1306366A (fr) *	1969-05-22	1973-02-07
GB1486421A (en) *	1973-12-03	1977-09-21	Communications Patents Ltd	Broadcast relay systems
FR2271727A1 (en) *	1974-02-06	1975-12-12	Radio Diffusion Tv Francaise	Cable television distribution system - has separate return channel from subscriber on telephone line to reduce noise
DE2603644C3 (de) *	1976-01-30	1980-02-28	Siemens Ag, 1000 Berlin Und 8000 Muenchen	Gemeinschaftsantennenanlage

1978
- 1978-01-23 GB GB2572/78A patent/GB1586543A/en not_active Expired
- 1978-12-11 IL IL56182A patent/IL56182A0/xx unknown
- 1978-12-14 AU AU42548/78A patent/AU4254878A/en active Pending
- 1978-12-20 IT IT52382/78A patent/IT1158175B/it active
- 1978-12-21 ZA ZA00787225A patent/ZA787225B/xx unknown
- 1978-12-21 ES ES476249A patent/ES476249A1/es not_active Expired
1979
- 1979-01-11 DE DE19792900813 patent/DE2900813A1/de not_active Withdrawn
- 1979-01-16 FR FR7901454A patent/FR2415404A1/fr not_active Withdrawn
- 1979-01-22 SE SE7900540A patent/SE7900540L/xx unknown
- 1979-01-22 BE BE2057556A patent/BE873611A/fr unknown
- 1979-01-23 JP JP562179A patent/JPS54116105A/ja active Pending
- 1979-01-23 NL NL7900520A patent/NL7900520A/xx not_active Application Discontinuation

Also Published As

Publication number	Publication date
FR2415404A1 (fr)	1979-08-17
JPS54116105A (en)	1979-09-10
GB1586543A (en)	1981-03-18
AU4254878A (en)	1979-08-02
DE2900813A1 (de)	1979-07-26
NL7900520A (nl)	1979-07-25
ES476249A1 (es)	1979-05-16
IT7852382A0 (it)	1978-12-20
ZA787225B (en)	1979-12-27
IT1158175B (it)	1987-02-18
SE7900540L (sv)	1979-07-24
IL56182A0 (en)	1979-03-12

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