Color television signal generating apparatus

Claim 1

A color television signal generating apparatus comprising: a color-resolving striped filter comprising a plurality of groups of filter stripes, said groups being disposed parallelly and consecutively in sequentially repeated arrangement each of said groups comprising at least three filter stripes from among a first filter stripe having a light transmission characteristic such as to transmit the light of one of the three primary colors of an addition mixture color, a second filter stripe having a light transmission characteristic such as to transmit the light of a mixed color of the primary color transmitted through said first filter stripe and one of the other two primary colors, and a transparent third filter stripe transmitting white light, said at least three filter stripes being arranged parallelly and consecutively in a specific sequence; a camera tube provided with said color-resolving striped filter disposed on the front surface thereof and operating to send out as an output signal a superimposed signal compriSing, in superimposition, a direct wave signal containing signals of the three primary colors of said addition mixture color and a high-band component signal comprising a group of modulated color signals representable as signals resulting from the amplitude modulation respectively of a carrier wave of a frequency equal to a space frequency determined by the number of said groups of filter stripes and carrier wave components of frequencies having higher harmonic relationships to the frequency of said carrier wave by the signals of two primary colors other than the primary color of the light transmitted through said first filter stripe; first separation means for separating said direct wave signal from the output signal of said camera tube; second separation means for separating said high-band component signal from the output signal of the camera tube; first clamping means for clamping at a specific voltage level one of two limiting level parts, namely, the minimum level part and the maximum level part, of the high-band component signal obtained as output of said second separation means and obtaining a first two-color mixture signal; second clamping means for clamping at a specific voltage level the other of said two limiting level parts and obtaining a second two-color mixture signal; and matrixing means supplied respectively with the direct wave signal produced as output of said first separation means, said first two-color mixture signal of the output of said first clamping means, and said second two-color mixture signal of the output of said second clamping means and operating to matrix said signals thus supplied and to produce three primary color signals.