TELEVISION SYSTEM - TESLER VLADIMIR E

Title:

TELEVISION SYSTEM

Document Type and Number:

WIPO Patent Application WO/1990/008445

Kind Code:

A1

Abstract:

A television system whose full coloured television signal (EM(t)) is formed by the use of reflex-modulated signals (E3(t)), where, at the transmitting side, the quadrature modulation of subcarrier frequencies in the phases ''0'' and U(pi/2) is effected by means of videosignals (E1-1(t), E1-2(t)) so as to form reflex-modulated signals (E3(t)) on the subcarrier frequencies f chosen so that the required phase differences are obtained in the subcarrier frequencies in the neighbouring lines of the same frame and in the numerically identical lines of the subsequent frames, the thus formed reflex-modulated signals being then transmitted within the time intervals of the full coloured television signal (EM(t)) which are provided for them, whereas, at the receiving side, the packages of the reflex-modulated signals (E3(t)) are discriminated from the received full coloured television signal (EM(t)) and delayed in delay units (11) for time intervals which are multiples of the television scanning durations, after which the delayed and non-delayed packages are multiplied by harmonic signals (U1(t), U2(t)) in multiplying units (121, 122), are algebraically added in an adder (13) and then the modulating videosignals (E1-1(t), E1-2(t)) are discriminated from the signals obtained as a result of said adding.

Inventors:

TESLER VLADIMIR EFIMOVICH (SU)
AVERBUKH IRINA ALEXANDROVNA (SU)

Application Number:

PCT/SU1989/000015

Publication Date:

July 26, 1990

Filing Date:

January 19, 1989

Export Citation:

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Assignee:

TESLER VLADIMIR E (SU)
AVERBUKH IRINA ALEXANDROVNA (SU)

International Classes:

H04N7/015; H04N7/08; H04N11/08; H04N11/12; H04N11/24; (IPC1-7): H04N11/08

Foreign References:

US4622578A	1986-11-11
US4630099A	1986-12-16
GB2169468A	1986-07-09

Other References: