Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04S
STEREOPHONIC SYSTEMS
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2400/00
Details of stereophonic systems covered by H04S but not provided for in its groups
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H04S2400/03
Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
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