H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/78
H04N 9/24 (2006.01)
Patent
CA 1126395
S01234 S79P106 BEAM INDEX COLOR TELEVISION RECEIVER APPARATUS ABSTRACT OF THE DISCLOSURE In a beam index color television receiver of the type having a cathode ray tube which is provided with beam-excitable color elements disposed on a display screen of the cathode ray tube and index elements which are scanned by an electron beam as the beam scans the display screen, an apparatus for controlling the beam includes an index signal generator for generating a periodic index signal as the index elements are scanned by the beam, color gates which sequentially gate respective color con- trol signals individually to modulate the electron beam as the beam scans the color elements, a gating signal circuit which generates sequential gating signals at a frequency synchronized with the frequency of the periodic index signal and which sup- plies the gating signals in sequence to the color gates to con- trol the latter so as to gate the respective color control signals, and a phase-controlling circuit for controlling the phase of the gate pulse singals in response to the highest-level one of the color control signals. -i-
340336
Imayasu Tomoyoshi
Isono Katsuo
Gowling Lafleur Henderson Llp
Sony Corporation
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