公开(公告)号：US3820157A

公开(公告)日：1974-06-25

申请号：US30085552

申请日：1952-07-25

Applicant: RCA CORP

Inventor： PRITCHARD D ,  SCHROEDER A

IPC: H04N9/66 ,  H04N9/02

CPC classification number: H04N9/66

Abstract: Color television signal detection apparatus utilizing only two synchronous detectors, the output signals of the two detectors, being combined with each other to derive a third signal of the same type as that provided by the synchronous detectors themselves, each of these signals then being combined with the luminance signal to provide the three desired signals representative of the color components.

公开(公告)号：US3828121A

公开(公告)日：1974-08-06

申请号：US1032070

申请日：1970-02-11

Applicant: RCA CORP

Inventor： BRANDINGER J ,  PRITCHARD D ,  FREDENDALL G ,  SCHROEDER A

IPC: H04N9/07 ,  H04N9/06

CPC classification number: H04N9/07

Abstract: Colored light from a scene is spatially encoded onto a photosensitive surface by a striped spatial color encoding filter assembly including first and second superimposed encoding gratings having equal pitch encoding stripes disposed such that the stripes of the respective gratings are at substantially equal and opposite angles measured from a reference line in the plane of the filter. Scanning of the encoded image on the photosensitive surface produces a composite signal including first and second carrier wave components representative of first and second colors and having substantially the same frequency during a scanning interval. The carrier wave components are separated by comb filter apparatus for producing separate color representative signals.

Abstract translation: 来自场景的彩色光通过条纹空间颜色编码滤光器组件被空间编码到光敏表面上，该滤色器组件包括具有相等间距编码条纹的第一和第二叠加编码光栅，所述第一和第二叠加编码光栅被布置成使得各个光栅的条纹基本相等， 在过滤器的平面中的参考线。 在感光表面上扫描编码图像产生包括表示第一和第二颜色的第一和第二载波分量并且在扫描间隔期间具有基本上相同频率的复合信号。 载波分量由梳状滤波器装置分开，用于产生分开的颜色代表信号。