Interactive manual preset controls for a color television receiver专利检索-手机电视广播专利检索查询-专利查询网

Interactive manual preset controls for a color television receiver

阅读：546发布：2023-04-06

专利汇可以提供Interactive manual preset controls for a color television receiver专利检索，专利查询，专利分析的服务。并且An electrical arrangement for restricting the range of adjustment for one of a redundant pair of color potentiometer controls in a color television receiver to affect a single picture characteristic, for example, the color saturation of the picture. Dominance of the characteristic by one of the pair of controls is determined by the position of a viewer-actuated selector switch which produces either a manual or preset mode of operation. The potentiometers are mounted coaxially and their variable taps interconnected with a resistor.，下面是Interactive manual preset controls for a color television receiver专利的具体信息内容。

权利要求

1. In a color television receiver having a color cathode ray tube, signal processing means including a chrominance channel for supplying color information and a luminance channel for supplying luminance inFormation to said color cathode ray tube, said receiver having preset and manual operating modes: a viewer-accessible color potentiometer control coupled to said chrominance channel for affecting one characteristic of chrominance in the display when the receiver is in the manual operating mode; a presettable color potentiometer control, normally inaccessible to the viewer and coupled to said chrominance channel in an electrically parallel arrangement with the viewer accessible control, for affecting the same characteristic of chrominance in the display when the receiver is in the preset operating mode; a viewer activated switch selecting between said preset and manual operating modes of the receiver; and means, coupled between the variable taps of said potentiometer controls, limiting the effectiveness of the viewer-accessible control providing restricted adjustment range with the vieweraccessible control when the receiver is in the preset operating mode.

2. In a color television receiver as described in claim 1 wherein said means limiting the effectiveness of the viewer-accessible color potentiometer control in the preset mode comprises a single resistor interconnected between said variable taps of said potentiometer controls.

3. In a color television receiver as described in claim 2 wherein said potentiometer controls are coaxially mounted.

4. In a color television receiver as described in claim 2 wherein said chrominance characteristic is the color level or saturation, wherein the potentiometer resistance is chosen to provide a normal operational range of 20-30db, relative to a given reference level, and wherein said resistor produces a restricted adjustment range of 2-3db in the chroma signal relative to the preset control setting.

5. In a color television receiver as described in claim 2 wherein said chrominance characteristic is the color tint or hue, wherein the potentiometer resistance is chosen to provide a normal operational range of 60*-90* in demodulation angle and wherein said resistor produces a restricted adjustment range of 10* relative to the preset control setting.

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Interactive manual preset controls for a color television receiver

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