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1. (WO2017151633) MEDIA CHANNEL IDENTIFICATION AND ACTION WITH MULTI-MATCH DETECTION AND DISAMBIGUATION BASED ON MATCHING WITH DIFFERENTIAL REFERENCE-FINGERPRINT FEATURE

Pub. No.:    WO/2017/151633    International Application No.:    PCT/US2017/019974
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: G06F 17/30
Applicants: GRACENOTE, INC.
Inventors: LEE, Jaehyung
LEE, Dewey Ho
CREMER, Markus
Title: MEDIA CHANNEL IDENTIFICATION AND ACTION WITH MULTI-MATCH DETECTION AND DISAMBIGUATION BASED ON MATCHING WITH DIFFERENTIAL REFERENCE-FINGERPRINT FEATURE
Abstract:
A computing system compares various reference fingerprints each representing a reference media stream broadcast on a different respective known channel, and the computing system determines that a plurality of the reference fingerprints match each other, thus defining a multi-match group of the matching reference fingerprints. In response, the computing system identifies a fingerprint feature that could define a distinction between the reference fingerprints, and the computing system resolves the multi-match based on the identified feature, thereby determining the channel carrying the media stream being rendered by the media presentation device. And the server then takes channel-specific action based on the determined channel.