GB1446340A - Carrier frequency telecommunication systems incorporating a television transmission system - Google Patents

Carrier frequency telecommunication systems incorporating a television transmission system

Info

Publication number
GB1446340A
GB1446340A GB3757573A GB3757573A GB1446340A GB 1446340 A GB1446340 A GB 1446340A GB 3757573 A GB3757573 A GB 3757573A GB 3757573 A GB3757573 A GB 3757573A GB 1446340 A GB1446340 A GB 1446340A
Authority
GB
United Kingdom
Prior art keywords
carrier frequency
television transmission
transmission system
telecommunication systems
programme
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3757573A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1446340A publication Critical patent/GB1446340A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite

Abstract

1446340 Television transmission SIEMENS AG 8 Aug 1973 [11 Aug 1972] 37575/73 Heading H4M A television programme is transmitted over a carrier frequency telecommunication system together with two additional signals associated with the programme and the system by first forming the additional signals into respective primary groups, converting those groups into a second group at 312 to 552 kHz, converting that group to an intermediate position by modulation with a carrier of 6799 or 6324 kHz, combining the TV programme video signal with the intermediate signal and frequency converting the combination to occupy a position corresponding to two adjacent quaternary groups of the carrier frequency system.
GB3757573A 1972-08-11 1973-08-08 Carrier frequency telecommunication systems incorporating a television transmission system Expired GB1446340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722239674 DE2239674C3 (en) 1972-08-11 1972-08-11 Method of broadcasting television

Publications (1)

Publication Number Publication Date
GB1446340A true GB1446340A (en) 1976-08-18

Family

ID=5853387

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3757573A Expired GB1446340A (en) 1972-08-11 1973-08-08 Carrier frequency telecommunication systems incorporating a television transmission system

Country Status (7)

Country Link
JP (1) JPS5415722B2 (en)
DE (1) DE2239674C3 (en)
FR (1) FR2195882B1 (en)
GB (1) GB1446340A (en)
IT (1) IT992879B (en)
NL (1) NL7310966A (en)
SE (1) SE392378B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2913924C2 (en) * 1979-04-06 1983-11-03 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Cable television system

Also Published As

Publication number Publication date
FR2195882B1 (en) 1979-07-20
DE2239674C3 (en) 1975-06-19
IT992879B (en) 1975-09-30
FR2195882A1 (en) 1974-03-08
NL7310966A (en) 1974-02-13
DE2239674B2 (en) 1974-11-07
DE2239674A1 (en) 1974-02-28
JPS4987225A (en) 1974-08-21
JPS5415722B2 (en) 1979-06-16
SE392378B (en) 1977-03-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee