IT1036279B - Colour TV system including auxiliary information - replaces colour subcarrier burst on some lines by burst of different frequency - Google Patents

Colour TV system including auxiliary information - replaces colour subcarrier burst on some lines by burst of different frequency

Info

Publication number
IT1036279B
IT1036279B IT6851075A IT6851075A IT1036279B IT 1036279 B IT1036279 B IT 1036279B IT 6851075 A IT6851075 A IT 6851075A IT 6851075 A IT6851075 A IT 6851075A IT 1036279 B IT1036279 B IT 1036279B
Authority
IT
Italy
Prior art keywords
burst
colour
subcarrier
lines
system including
Prior art date
Application number
IT6851075A
Other languages
Italian (it)
Original Assignee
Indesit
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 Indesit filed Critical Indesit
Priority to IT6851075A priority Critical patent/IT1036279B/en
Priority to US05/719,783 priority patent/US4134127A/en
Application granted granted Critical
Publication of IT1036279B publication Critical patent/IT1036279B/en

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Abstract

The colour television system, such as the NTSC system transmits at least a part of the chromatic information as suppressed carrier amplitude modulation of a subcarrier. A subcarrier burst is inserted in the signal as a reference signal for use in demodulating the signal. The subcarrier bursts are suppressed from some of the lines of the TV signal and replaced by signals carrying additional sound or picture information such as emergency messages, newsflashes or the like. The bursts may be suppressed on alternate lines. The additional information may be carried as a burst at a frequency different from the subcarrier frequency.
IT6851075A 1975-06-12 1975-06-12 Colour TV system including auxiliary information - replaces colour subcarrier burst on some lines by burst of different frequency IT1036279B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT6851075A IT1036279B (en) 1975-06-12 1975-06-12 Colour TV system including auxiliary information - replaces colour subcarrier burst on some lines by burst of different frequency
US05/719,783 US4134127A (en) 1975-06-12 1976-09-02 Color television signal including auxiliary information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6851075A IT1036279B (en) 1975-06-12 1975-06-12 Colour TV system including auxiliary information - replaces colour subcarrier burst on some lines by burst of different frequency

Publications (1)

Publication Number Publication Date
IT1036279B true IT1036279B (en) 1979-10-30

Family

ID=11309644

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6851075A IT1036279B (en) 1975-06-12 1975-06-12 Colour TV system including auxiliary information - replaces colour subcarrier burst on some lines by burst of different frequency

Country Status (1)

Country Link
IT (1) IT1036279B (en)

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