Programmable Control Analog Video Test Unit
Original Publication Date: 1988-May-01
Included in the Prior Art Database: 2005-Feb-15
A technique is described whereby the analog format of color video display signals is tested by means of a programmable peripheral interface. The concept is an improvement over visual pixel counting methods previously used. In the prior art, testing of the analog format of RGB (red, green, blue) video signals, as used in cathode ray tube color displays, required visual testing or pixel transition counting techniques. This method was time consuming and often inaccurate, since pixel counting can only partially test analog format video signals. The concept described herein provides two methods of utilizing the program controllable analog video testing interface for comprehensive and accurate testing of the analog format.