G10L 25/00 Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 (muting semiconductor-based amplifiers when some special characteristics of a signal are sensed by a speech detector, e.g. sensing when no signal is present, H03G3/34)
Introduced: January 2013
Title
Titles differ between systems:
IPC: Speech or voice analysis techniques not restricted to a single one of groups
CPC: Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 (muting semiconductor-based amplifiers when some special characteristics of a signal are sensed by a speech detector, e.g. sensing when no signal is present, H03G3/34)
Full Title
Full titles differ between systems:
Speech or voice analysis techniques not restricted to a single one of groups
Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 (muting semiconductor-based amplifiers when some special characteristics of a signal are sensed by a speech detector, e.g. sensing when no signal is present, H03G3/34)
IPC and CPC are identically structured here. All 8 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2013.
Child Classifications
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- G10L 25/03 characterised by the type of extracted parameters since 2013 IPC+CPC Available in IPC and CPC
- G10L 25/78 Detection of presence or absence of voice signals (switching of direction of transmission by voice frequency in two-way loud-speaking telephone systems H04M9/10) since 2013 +1 CPC IPC+CPC Available in IPC and CPC
- G10L 25/93 Discriminating between voiced and unvoiced parts of speech signals (G10L25/90 takes precedence) since 2013 +3 CPC IPC+CPC Available in IPC and CPC