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公开(公告)号：KR820000861B1
公开(公告)日：1982-05-17
申请号：KR780000249
申请日：1978-01-31
Applicant: RCA CORP
Inventor： SHANLEY R
IPC: H04N9/535
Abstract: The color temperature adjustment circuit for television CRT's provides compensation for variations between the electron guns, and between the efficiency of the various screen phosphors. Adjustment is achieved by processing in individual channels the color, brilliance and synchronisation signals. Each such channel has a two position switch, one position being for normal receiver operation and the second selectively rendering inoperative the colour and brilliance channels. A second video circuit operates independently of the normal synchronisation signal separation circuit (60), the output of this second channel feeding a synchronisation signal generator (62).
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公开(公告)号：KR800000935B1
公开(公告)日：1980-09-12
申请号：KR760001206
申请日：1976-05-17
Applicant: RCA CORP
Inventor： SHANLEY R
Abstract: A serivice switch is provided for a color television receiver of the type including, in the other named, a black level clamping circuit, a brightness control circuit and an amplifier for coupling luminance signals to an image reproducing line scope. A reserve blanking circuit is coupled with the output of the amplifier for rendering the kinescope in operative during the vertical retrace-horizontal trace intervals to inhibit the formation of disconcerting horizontal trace lines. In a raster position, the service switch is operated to provide a blank raster and to automatically increase the brightness of raster to a level sufficient to permit purity adjustment.
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