H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/08 (2006.01) H04J 3/16 (2006.01) H04N 7/015 (2006.01) H04N 7/26 (2006.01) H04N 7/50 (2006.01) H04N 7/58 (2006.01)
Patent
CA 2321015
A statistical multiplexer for coding and multiplexing multiple channels of digital television data, or multiple panels of HDTV digital television data. A bit rate need parameter is determined for each encoder in a stat mux group by scaling the complexities of previous pictures of the same and different picture types. Scaling factors based on an activity level, motion estimation score, and number of pictures of a certain type in a GOP, may be used. Moreover, the scaling factors may be bounded based on a linear or non-linear operator to prevent large variations in the factors. An encoding bit rate is allocated to each channel based on its need parameter.
Casteloes Michael
Chen Jing Yang
Lam Rebecca
Liu Vincent
Nemiroff Robert S.
General Instrument Corporation
Ridout & Maybee Llp
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