GB1551740A - Wired broadcasting systems - Google Patents
Wired broadcasting systemsInfo
- Publication number
- GB1551740A GB1551740A GB29548/75A GB2954875A GB1551740A GB 1551740 A GB1551740 A GB 1551740A GB 29548/75 A GB29548/75 A GB 29548/75A GB 2954875 A GB2954875 A GB 2954875A GB 1551740 A GB1551740 A GB 1551740A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carrier signal
- signal
- modulator
- generating
- transmitting device
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
A distribution network is used for distributing programme signals from a central station to a plurality of receivers (6, 7). The central station exhibits a transmitting device (5) which is used for feeding the distribution network. The transmitting device (5) exhibits a character generator (10, 11, 12) for generating a character signal, a modulator (19, 20, 21) for modulating a radio-frequency carrier signal and an oscillator (16) for generating a clock signal for the character generator (10, 11, 12) and the carrier signal supplied to the modulator (19, 20, 21). The frequency of the clock signal and of the carrier signal have an integral-numbered ratio to one another so that the visible beat effect caused between the carrier signal and the picture signals is reduced. <IMAGE>
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB29548/75A GB1551740A (en) | 1975-07-15 | 1975-07-15 | Wired broadcasting systems |
ZA764035A ZA764035B (en) | 1975-07-15 | 1976-07-07 | Improvements in or relating to wired broadcasting systems |
DE19762630686 DE2630686A1 (en) | 1975-07-15 | 1976-07-08 | SYSTEM FOR WIRED IMAGE TRANSFER |
CH881976A CH607664A5 (en) | 1975-07-15 | 1976-07-09 | Wire television system |
NL7607745A NL7607745A (en) | 1975-07-15 | 1976-07-13 | WIRE FREQUENCY SYSTEM. |
IT50422/76A IT1066597B (en) | 1975-07-15 | 1976-07-14 | METHOD AND APPARATUS FOR REMOTE WIRE TRANSMISSIONS |
AU15911/76A AU499803B2 (en) | 1975-07-15 | 1976-07-15 | Wired broadcasting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB29548/75A GB1551740A (en) | 1975-07-15 | 1975-07-15 | Wired broadcasting systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1551740A true GB1551740A (en) | 1979-09-12 |
Family
ID=10293274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29548/75A Expired GB1551740A (en) | 1975-07-15 | 1975-07-15 | Wired broadcasting systems |
Country Status (7)
Country | Link |
---|---|
AU (1) | AU499803B2 (en) |
CH (1) | CH607664A5 (en) |
DE (1) | DE2630686A1 (en) |
GB (1) | GB1551740A (en) |
IT (1) | IT1066597B (en) |
NL (1) | NL7607745A (en) |
ZA (1) | ZA764035B (en) |
-
1975
- 1975-07-15 GB GB29548/75A patent/GB1551740A/en not_active Expired
-
1976
- 1976-07-07 ZA ZA764035A patent/ZA764035B/en unknown
- 1976-07-08 DE DE19762630686 patent/DE2630686A1/en not_active Withdrawn
- 1976-07-09 CH CH881976A patent/CH607664A5/en not_active IP Right Cessation
- 1976-07-13 NL NL7607745A patent/NL7607745A/en not_active Application Discontinuation
- 1976-07-14 IT IT50422/76A patent/IT1066597B/en active
- 1976-07-15 AU AU15911/76A patent/AU499803B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2630686A1 (en) | 1977-02-03 |
NL7607745A (en) | 1977-01-18 |
CH607664A5 (en) | 1978-09-29 |
AU499803B2 (en) | 1979-05-03 |
IT1066597B (en) | 1985-03-12 |
ZA764035B (en) | 1977-05-25 |
AU1591176A (en) | 1978-01-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |