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Symbol IPC-Stellen auswählen Titel
A
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HUMAN NECESSITIES
B
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PERFORMING OPERATIONS; TRANSPORTING
C
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CHEMISTRY; METALLURGY
D
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TEXTILES; PAPER
E
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FIXED CONSTRUCTIONS
F
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MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G
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PHYSICS
G01
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INSTRUMENTS
G01
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MEASURING (counting G06M)TESTING
G02
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OPTICS (making optical elements or apparatus B24B , B29D 11/00 , C03 , or other appropriate subclasses or classes; materials per se, see the relevant places, e.g. C03B , C03C)
G03
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PHOTOGRAPHYCINEMATOGRAPHYANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVESELECTROGRAPHYHOLOGRAPHY (reproduction of pictures or patterns by scanning and converting into electrical signals H04N) [4]
G04
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HOROLOGY
G05
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CONTROLLINGREGULATING
G06
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COMPUTINGCALCULATINGCOUNTING (score computers for games A63B 71/06 , A63D 15/20 , A63F 1/18; combinations of writing implements with computing devices B43K 29/08)
G07
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CHECKING-DEVICES
G08
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SIGNALLING (indicating or display devices per se G09F; transmission of pictures H04N)
G09
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EDUCATINGCRYPTOGRAPHYDISPLAYADVERTISINGSEALS
G10
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MUSICAL INSTRUMENTSACOUSTICS
G10B
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ORGANSHARMONIUMS (mouth organs or accordions G10D; aspects of automatic actuation G10F; combinations of microphones, pick-ups or amplifiers with musical instruments, electronic organs G10H)
G10C
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PIANOS (non-musical aspects of toy pianos A63H 5/00; aspects of automatic actuation G10F; combinations of microphones, pick-ups or amplifiers with musical instruments G10H)
G10D
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MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR (aspects of automatic actuation G10F; combinations of microphones, pick-ups or amplifiers with musical instruments G10H; sound-producing devices not regarded as musical instruments or parts thereof G10K)
G10F
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AUTOMATIC MUSICAL INSTRUMENTS (non-musical aspects of toy instruments A63H 5/00; sound-recording or reproducing G11B; associated working with recording or reproducing apparatus G11B 31/02)
G10G
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AIDS FOR MUSIC (metronomes G04F 5/02; teaching music G09B 15/00)
G10H
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ELECTROPHONIC MUSICAL INSTRUMENTS (electronic circuits in general H03)
G10K
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SOUND-PRODUCING DEVICES (sound-producing toys A63H 5/00; musical instruments or parts thereof, see the relevant subclass, e.g. G10D)ACOUSTICS NOT OTHERWISE PROVIDED FOR (fluid oscillators or pulse generators for fluid-pressure systems F15B 21/12; systems using the reflection or reradiation of acoustic waves G01S 15/00; generating seismic energy G01V 1/02; signalling or calling arrangements, alarm arrangements G08B; piezo-electric, electrostrictive or magnetostrictive elements in general H01L 41/00; transmission systems using infrasonic, sonic, or ultrasonic waves H04B 11/00; loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers H04R) [6]
G10L
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SPEECH ANALYSIS OR SYNTHESISSPEECH RECOGNITION (sound input/output for computers G06F 3/16; digital data processing methods or equipment specially adapted for handling natural language data G06F 17/20; teaching or communicating with the blind, deaf or mute G09B 21/00; telephonic communication H04M) [4]
G10L 3/00
(transferred to G10L 11/00;  to ; G10L 11/06G10L 13/04G10L 15/04G10L 17/00)
G10L 5/00
(transferred to G10L 13/00G10L 15/00G10L 17/00)
G10L 7/00
(transferred to G10L 13/00G10L 15/00G10L 17/00G10L 19/02)
G10L 9/00
(transferred to G10L 15/02G10L 15/08G10L 15/16G10L 19/02)
G10L 11/00
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Determination or detection of speech characteristics not restricted to a single one of groups G10L 15/00 to G10L 21/00 [7]
G10L 13/00
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Speech synthesisText to speech systems (electrophonic musical instruments G10H) [7]
G10L 15/00
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Speech recognition (G10L 17/00 takes precedence) [7]
G10L 17/00
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Speaker identification or verification [7]
G10L 19/00
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Speech analysis-synthesis techniques for redundancy reduction, e.g. in vocodersCoding or decoding of speech [7]
G10L 19/02
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using spectral analysis, e.g. transform vocoders, subband vocoders [7]
G10L 19/04
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using predictive techniques [7]
G10L 19/06
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. . Determination or coding of the spectral characteristics, e.g. of the short term prediction coefficients [7]
G10L 19/08
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. . Determination or coding of the excitation functionDetermination or coding of the long-term prediction parameters [7]
G10L 19/10
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. . . Determination or coding of a multipulse excitation [7]
G10L 19/12
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. . . Determination or coding of a code excitation, e.g. in code excited linear prediction (CELP) vocoders [7]
G10L 19/14
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. . Details not provided for in groups G10L 19/06 to G10L 19/12 , e.g. gain coding, post filtering design, vocoder structure [7]
G10L 21/00
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Processing of the speech signal to produce another audible or non-audible signal, e.g. visual, tactile, in order to modify its quality or its intelligibility (G10L 19/00 takes precedence) [7]
G10L 101/00
Indexing scheme associated with groups G10L 11/00 to G10L 21/00 , relating to speech signal processing or feature extraction. The indexing codes should be unlinked. [7]
G10L 101/00
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Signal processing or feature extraction methods applied in speech analysis, synthesis or recognition [7]
G11
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INFORMATION STORAGE
G12
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INSTRUMENT DETAILS
G21
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NUCLEONICS
G21
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NUCLEAR PHYSICSNUCLEAR ENGINEERING
H
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ELECTRICITY

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