Invention Application
WO2005089479A3 METHOD AND SYSTEM FOR PROVIDING FASTER CHANNEL SWITCHING IN A DIGITAL BROADCAST SYSTEM 审中-公开
在数字广播系统中提供更快的频道切换的方法和系统

METHOD AND SYSTEM FOR PROVIDING FASTER CHANNEL SWITCHING IN A DIGITAL BROADCAST SYSTEM
Abstract:
Methods, apparatuses, and systems are presented for switching between channels of encoded media data involving receiving encoded media data including reference frames and dependent frames for a plurality of channels, wherein each dependent frame refers to at least one reference frame. Frames associated with a first channel from the plurality of channels are decoded to generate a decoded signal for the first channel. While decoding frames associated with the first channel, data corresponding to at least one reference frame associated with a second channel from the plurality of channels are stored. In response to a control signal for switching from the first to the second channel, at least one dependent frame associated with the second channel is decoded by utilizing the stored data corresponding to the at least one reference frame associated with the second channel, to generate a decoded signal for the second channel.
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