G10L SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
Introduced: September 1968
Last revised: January 1985
Classification Context
- Section:
- PHYSICS
- Class:
- MUSICAL INSTRUMENTS; ACOUSTICS
- Subclass:
- SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
Description
G10L encompasses techniques for analyzing, synthesizing, and processing speech and audio signals, including speech recognition systems that identify and interpret spoken content, as well as voice processing methods such as speaker identification and emotion detection. This subclass also covers audio and speech coding/decoding technologies that compress and decompress voice data for transmission or storage, enabling efficient communication and multimedia applications. The classification includes acoustic feature extraction, signal processing algorithms, and computational methods applied to speech and voice signals, but excludes general audio signal processing unrelated to speech (covered under G10H and related classes) and non-acoustic speech analysis such as written text processing.
Filing statistics
IPC subclass G10L recorded 174,065 patent applications worldwide between 2013 and 2023. Annual filings grew from 8,115 in 2013 to 18,565 in 2023 (+129%), peaking at 21,649 applications in 2020. The most active applicants in class G10 are SAMSUNG ELECTRONICS COMPANY (5,218 applications), GOOGLE (4,644 applications) and FRAUNHOFER (4,601 applications).
Source: EPO PATSTAT, worldwide filings
In class comparison
G10L ranks 1st of 8 subclasses with filings in G10, with 174,065 applications between 2013 and 2023, 62.2% of the class. Annual filings grew 129% from 2013 to 2023, above the class as a whole (+98%).
| Rank | Subclass | Title | Applications | Share |
|---|---|---|---|---|
| 1 | G10L | Speech Analysis Techniques or Speech Synthesis; Speech Recognition; Speech or Voice Processing Techniques; Speech or Audio Coding or Decoding | 174,065 | 62.2% |
| 2 | G10K, Sound-Producing Devices; Methods or Devices for Protecting Against, or for Damping, Noise or Other Acoustic Waves in General; Acoustics Not Otherwise Provided for | Sound-Producing Devices; Methods or Devices for Protecting Against, or for Damping, Noise or Other Acoustic Waves in General; Acoustics Not Otherwise Provided for | 54,920 | 19.6% |
| 3 | G10H, Electrophonic Musical Instruments; Instruments in Which the Tones Are Generated by Electromechanical Means or Electronic Generators, or in Which the Tones Are Synthesised From a Data Store | Electrophonic Musical Instruments; Instruments in Which the Tones Are Generated by Electromechanical Means or Electronic Generators, or in Which the Tones Are Synthesised From a Data Store | 18,271 | 6.5% |
| 4 | G10D, Stringed Musical Instruments; Wind Musical Instruments; Accordions or Concertinas; Percussion Musical Instruments; Aeolian Harps; Singing-Flame Musical Instruments; Musical Instruments Not Otherwise Provided for | Stringed Musical Instruments; Wind Musical Instruments; Accordions or Concertinas; Percussion Musical Instruments; Aeolian Harps; Singing-Flame Musical Instruments; Musical Instruments Not Otherwise Provided for | 17,500 | 6.3% |
| 5 | G10G, Representation of Music; Recording Music in Notation Form; Accessories for Music or Musical Instruments Not Otherwise Provided For, e.g. Supports | Representation of Music; Recording Music in Notation Form; Accessories for Music or Musical Instruments Not Otherwise Provided For, e.g. Supports | 9,278 | 3.3% |
| 6 | G10C, Pianos, Harpsichords, Spinets or Similar Stringed Musical Instruments With One or More Keyboards | Pianos, Harpsichords, Spinets or Similar Stringed Musical Instruments With One or More Keyboards | 3,810 | 1.4% |
| 7 | G10F, Automatic Musical Instruments | Automatic Musical Instruments | 1,157 | 0.4% |
| 8 | G10B, Organs, Harmoniums or Similar Wind Musical Instruments With Associated Blowing Apparatus | Organs, Harmoniums or Similar Wind Musical Instruments With Associated Blowing Apparatus | 686 | 0.2% |
Source: EPO PATSTAT, worldwide filings
Additional Content
Glossary
speech definite vocal sounds that form words to express thoughts and ideas. voice voices sounds generated by vocal chords or synthetic versions thereof. audio signal audio signals of or relating to humanly audible sound, meant to include speech, voice, music, silence or background noise, or any combinations thereof.
Limiting references
Devices for the storage of speech signals Static stores Encoding of compressed speech signals for transmission or storage
Related Keywords
7 direct subcodes
Child Classifications
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- G10L 13/00 Speech synthesis; Text to speech systems
- G10L 15/00 Speech recognition
- G10L 17/00 Speaker identification or verification techniques
- G10L 19/00 Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L 21/00 Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L 25/00 Speech or voice analysis techniques not restricted to a single one of groups
- G10L 99/00 Subject matter not provided for in other groups of this subclass
Top Applicants
Top 10 applicants by patent filingsfor class G10, 2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 5,218
- GOOGLE US 4,644
- FRAUNHOFER DE 4,601
- SONY CORPORATION JP 2,380
- HUAWEI TECHNOLOGIES COMPANY CN 2,179
- YAMAHA CORPORATION 2,120
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 1,974
- MICROSOFT TECHNOLOGY LICENSING US 1,916
- AMAZON TECHNOLOGIES US 1,866
- DOLBY LABORATORIES LICENSING CORPORATION US 1,843