Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels
Reexamination Certificate
2008-07-15
2008-07-15
To, Doris (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via frequency channels
C370S503000, C370S536000, C386S349000
Reexamination Certificate
active
07400653
ABSTRACT:
A playback system in a digital cinema network synchronizes the presentation of visual and aural content by deriving timing information for packets of information that are conveyed in video and audio data streams, examining the timing information to determine if any misalignment between the two data streams is likely to be perceptible and, if the misalignment is deemed to be perceptible, introducing delays into one or both data streams to correct the misalignment. If the audio data stream precedes the video data stream, the audio data stream is delayed by an integer number of audio sample periods. If the video data stream precedes the audio data stream, the video data stream is delayed by an integer number of video frames and the audio data stream is delayed by an integer number of audio sample periods.
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Couling John David
Davies Trevor
Lakshminarayanan Gopi
Richards Martin John
Dolby Laboratories Licensing Corporation
Gallagher & Lathrop P.C.
Lathrop David N.
Moore Ian N.
To Doris
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