Using Predictive Techniques; Codecs Based On Source-filter Modelization (epo) Patents (Class 704/E19.023)
- Determination or coding of an excitation gain (EPO) (Class 704/E19.027)
- Using mixed excitation model, e.g., MELP, MBE, Split band LPC, HVXC, etc. (EPO) (Class 704/E19.028)
- Long-term prediction, i.e., removing periodical redundancies, e.g., adaptive codebook, pitch predictor, etc. (EPO) (Class 704/E19.029)
- Using sinusoidal excitation model (EPO) (Class 704/E19.03)
- Using prototype waveform decomposition or waveform interpolative coders (PWI) (EPO) (Class 704/E19.031)
- Determination or coding of a multipulse excitation (EPO) (Class 704/E19.032)
- Determination or coding of a code excitation; code excited linear prediction (CELP) vocoders (EPO) (Class 704/E19.035)
- Vocoder architecture (EPO) (Class 704/E19.04)
- Pre- or post-filtering (EPO) (Class 704/E19.045)
- Audio streaming, i.e., formatting and decoding of an encoded audio signal (EPO) (Class 704/E19.048)
- Transcoding, i.e., converting between two coded representations avoiding cascaded coding-decoding (EPO) (Class 704/E19.049)