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| Number | Title | Issue Date |
| 8073497 | Echo canceller with correlation using pre-whitened data values received by downlink codec Duplex audio communications over a network use compressed audio data, with linear prediction coefficients (LPCs) and variances by which sample values differ from predictions. A adaptive echo canceller for a transceiver develops finite impulse response filter (FIR) c... | 12/06/2011 |
| 7907977 | Echo canceller with correlation using pre-whitened data values received by downlink codec Duplex audio communications over a network use compressed audio data, with linear prediction coefficients (LPCs) and variances by which sample values differ from predictions. A adaptive echo canceller for a transceiver develops finite impulse response filter (FIR) c... | 03/15/2011 |
