IT1036338B - Radio transmission system for colour TV signals - has two carriers of frequencies equal to odd multiple of signal spacing frequency - Google Patents
Radio transmission system for colour TV signals - has two carriers of frequencies equal to odd multiple of signal spacing frequencyInfo
- Publication number
- IT1036338B IT1036338B IT6858875A IT6858875A IT1036338B IT 1036338 B IT1036338 B IT 1036338B IT 6858875 A IT6858875 A IT 6858875A IT 6858875 A IT6858875 A IT 6858875A IT 1036338 B IT1036338 B IT 1036338B
- Authority
- IT
- Italy
- Prior art keywords
- carriers
- transmission system
- radio transmission
- signals
- colour
- Prior art date
Links
Landscapes
- Color Television Systems (AREA)
Abstract
The radio transmission system employs a method of conding which opens up new possibilities and is especially suitable for transmitting colour television signals without using a line-frequency change-over switch. The two (or more) information signals occupy different frequency bands and consist of groups of lines repreated with constant frequency spacing. The two (or more) carriers are amplitude modulated. One (or all but one) are suppressed. The two (or more) carriers are chosen to have frequencies (different form one another) equal to M/2 (or M/N) times the constant frequency spacing of the line groups, where M is an odd integer.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT6858875A IT1036338B (en) | 1975-06-20 | 1975-06-20 | Radio transmission system for colour TV signals - has two carriers of frequencies equal to odd multiple of signal spacing frequency |
GB2362076A GB1533148A (en) | 1975-06-20 | 1976-06-08 | Reception-transmission system for radio-electrical signal |
DE19762627451 DE2627451A1 (en) | 1975-06-20 | 1976-06-18 | PROCEDURE AND CIRCUIT ARRANGEMENT FOR ELECTRIC RADIO SIGNALS |
FR7618793A FR2316807A1 (en) | 1975-06-20 | 1976-06-21 | RECEPTION AND TRANSMISSION PROCESS FOR RADIO-ELECTRIC SIGNALS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT6858875A IT1036338B (en) | 1975-06-20 | 1975-06-20 | Radio transmission system for colour TV signals - has two carriers of frequencies equal to odd multiple of signal spacing frequency |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1036338B true IT1036338B (en) | 1979-10-30 |
Family
ID=11309948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT6858875A IT1036338B (en) | 1975-06-20 | 1975-06-20 | Radio transmission system for colour TV signals - has two carriers of frequencies equal to odd multiple of signal spacing frequency |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1036338B (en) |
-
1975
- 1975-06-20 IT IT6858875A patent/IT1036338B/en active
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