公开(公告)号：US3735028A

公开(公告)日：1973-05-22

申请号：US3735028D

申请日：1972-03-17

Applicant: RCA CORP

Inventor： PRITCHARD D ,  SEPP W

IPC: H01J31/46 ,  H04N9/077 ,  H04N9/06

CPC classification number: H01J31/46 ,  H04N9/077

Abstract: Light from a scene is directed through the faceplate of an image pickup device having an electron gun operative to produce an electron beam. The light impinges upon a layered target structure including a photoconductor and a conductive signal electrode. The target structure is comprised of a first and second plurality of spaced parallel elongated areas. The widths of the first and second plurality of spaced parallel elongated areas in the direction of scanning differing cyclically from smaller widths to progressively larger widths back to smaller widths of varying conductivity such that the scanning of an electron beam across the target structure produces a composite video signal containing a color information signal representative of the color of the image formed on the target and an index signal whose frequency is less than the color information signal and is representative of the first and second plurality of spaced parallel elongated areas. Means are provided for separating the video signal information from the index signal.

Abstract translation: 来自场景的光被引导通过具有电子枪的图像拾取装置的面板，其操作以产生电子束。 光照射在包括感光体和导电信号电极的分层目标结构上。 目标结构由第一和第二多个间隔开的平行细长区域组成。 在扫描方向上的第一和第二多个间隔开的平行细长区域的宽度周期性地从较小宽度逐渐变大到逐渐变大的宽度，从而导致变化的导电率的较小宽度，使得跨过目标结构的电子束的扫描产生复合视频 信号，其包含表示形成在目标上的图像的颜色的颜色信息信号和频率小于颜色信息信号的代表第一和第二多个间隔开的平行细长区域的索引信号。 提供了用于将视频信号信息与索引信号分离的装置。

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。

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.