Patent ID: 7062696

Claim:
A circuit for testing that is capable of creating any of a plurality of creatable component video test patterns, comprising: a pattern selection register that is operable to store and provide a pattern selection value indicating a component video test pattern selected for creation among the plurality of creatable component video test patterns, wherein each of the plurality of creatable component video test patterns is, when created, a complete television video picture suitable for testing of digital television video processing equipment; a pattern generation state machine that is operable to control a sequencing of a creation of the component video test pattern selected for creation by providing a plurality of clear and increment signals; a memory component that is operable to provide a table output value based on the plurality of clear and increment signals and the pattern selection value, wherein the memory component includes: a header table that stores: a plurality of data samples that each include a unique data word; and a sequence of data that includes a portion of a repeating horizontal blanking data sequence, and further includes a repeat field that indicates a number of repetitions for the repeating horizontal blanking sequence; and an output register that is operable to create the component video test pattern selected for creation based on the table output value.