Patent ID: 9226028
Filing Date: 2015-12-29
Classification: H04N

Abstract:
1. A system comprising: at least one non-transitory computer readable storage medium with instructions executable by at least one processor to: access a digital signal including audio video content: access a plurality of test data structures; compare, plural times, the digital signal with at least some of the test data structures; and generate a control signal responsive to a match of at least a portion of the digital signal with at least a portion of the test data structures, wherein the control signal is operable to alter a component of a presentation of the portion of the broadcast content, wherein a length of an interval between comparisons of the digital signal to the test data structures is a first length for a first period commencing with a match of at least a portion of the digital signal with at least a portion of the test data structures, the first period ending at a first time, the length of the interval between comparisons of the digital signal to the test data structures being shortened to a second length shorter than the first length upon the elapse of the first period.