Patent ID: 9495598
Filing Date: 2016-11-15
CPC Classification: G06K,H04H,H04N

Claim Text:
1. A method for advertisement detection based on fingerprints, the method comprising: storing broadcast content in real time, wherein the stored broadcast content defines a sequence of content over time; selecting a reference section and a test section from the stored broadcast content, wherein the selected test section and the selected reference section are respective time sections defined in relation to each other in the sequence of content; extracting fingerprints respectively from the selected reference section and from the selected test section, using one or more fingerprint extraction methods; comparing the extracted fingerprints from the test section with the extracted fingerprints from the reference section to perform matching between the compared fingerprints; determining advertisement segments from the test section based on results of the matching; storing segment information about the determined advertisement segments in an advertisement database and managing the advertisement database; and changing the reference section and the test section, wherein changing the reference section and the test section comprises causing an interval ranging to an end point of each advertisement segment determined from the test section to be included in the reference section, wherein, when there are a plurality of advertisement segments, the reference section is changed by causing an interval ranging to an end point of a last advertisement segment to be included in the reference section.