Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
2007-04-17
2007-04-17
Tran, Thai Q. (Department: 2621)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C348S700000, C358S908000
Reexamination Certificate
active
10143571
ABSTRACT:
The invention concerns a method and system for identifying commercial message segments of a video signal. A set of rules is applied for determining the occurrence of commercial messages with a higher degree of accuracy as compared to conventional methods. In general, method includes the steps of monitoring a digital bit stream comprising the video signal, detecting a change in a control field of the digital bit stream, and then selectively generating a commercial event notification responsive to the detecting step. According to one aspect of the invention, a change in at least one of a video sequence header and a sequence display extension can be detected. Alternatively, or in addition to checking for a change in control field, the method can comprise the step of detecting a change in an informational parameter of the video signal exclusive of the audio-visual content.
REFERENCES:
patent: 5333091 (1994-07-01), Iggulden et al.
patent: 5818512 (1998-10-01), Fuller
patent: 5886731 (1999-03-01), Ebisawa
patent: 6100941 (2000-08-01), Dimitrova et al.
patent: 6272286 (2001-08-01), Asada et al.
patent: 6275618 (2001-08-01), Kodama
patent: 6449021 (2002-09-01), Ohta et al.
patent: 6469749 (2002-10-01), Dimitrova et al.
patent: 6477649 (2002-11-01), Kambayashi et al.
patent: 6487721 (2002-11-01), Safadi
patent: 6516002 (2003-02-01), Huang et al.
patent: 6643327 (2003-11-01), Wang
patent: 2002/0001459 (2002-01-01), Fujie et al.
patent: 2002/0051623 (2002-05-01), Nakatani et al.
patent: 1200220 (1998-11-01), None
patent: 1193973 (2002-04-01), None
patent: 2361125 (2001-10-01), None
patent: WO 97/01930 (1997-01-01), None
patent: WO 98/32281 (1998-07-01), None
patent: WO 01/11865 (2001-02-01), None
patent: WO 01/84905 (2001-11-01), None
W. O'Grady et al., “Real-Time Switching of MPEG-2 Bitstreams,” International Broadcasting Convention, Sep. 12-16, 1997, pp. 166-170.
Engle Joseph C.
Odutola Akinyemi
Fogelson Joel M.
Kurdyla Ronald H.
Laks Joseph J.
Thomson Licensing
Topgyal Gelek
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