Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression
Patent class list (only not empty are listed)
Deeper subclasses:
Class / Patent application number | Description | Number of patent applications / Date published |
---|---|---|
704200000 | SPEECH SIGNAL PROCESSING | 7048 |
704001000 | LINGUISTICS | 3172 |
704500000 | AUDIO SIGNAL BANDWIDTH COMPRESSION OR EXPANSION | 1175 |
704503000 | AUDIO SIGNAL TIME COMPRESSION OR EXPANSION (E.G., RUN LENGTH CODING) | 55 |