direct commandsUS6469749 *13 Oct 199922 Oct 2002Koninklijke Philips Electronics N.V.Automatic signature-based spotting, learning and extracting of commercials and other video content* Cited by examinerNon-Patent CitationsReference1Television VBI Data Communications Systems", Closed Captioning & Datacasting, EEG Enterprises, Inc.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS