Method and apparatus for generating television test patterns.

摘要

A test pattern suitable for testing high definition (HDTV) television signals is described as well as a method and apparatus for providing such a pattern on a television display apparatus. A plurality of color signals are stored in a memory device (look-up table) and each pixel of the display screen is correlated to a point on a spiral curve in order to determine a rotational angle which is used as an address for one or more of said color signals which are displayed at that pixel location. In this manner, a spiral shaped test pattern is generated having spiral color (or monochrome) segments corresponding to a spiral curve. <IMAGE>