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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G10L 25/51

for comparison or discrimination

Introduced: January 2013

Full Title

Full titles differ between systems:

IPC:

Speech or voice analysis techniques not restricted to a single one of groups > specially adapted for particular use > for comparison or discrimination

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) > specially adapted for particular use > for comparison or discrimination

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2013.

Child Classifications

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  • G10L 25/54 for retrieval since 2013 IPC+CPC Available in IPC and CPC
  • G10L 25/57 for processing of video signals since 2013 IPC+CPC Available in IPC and CPC
  • G10L 25/60 for measuring the quality of voice signals since 2013 IPC+CPC Available in IPC and CPC
  • G10L 25/63 for estimating an emotional state since 2013 IPC+CPC Available in IPC and CPC
  • G10L 25/66 for extracting parameters related to health condition (detecting or measuring for diagnostic purposes A61B5/00) since 2013 IPC+CPC Available in IPC and CPC