HOST-BASED SPEAKER PHONE

摘要

The present invention includes a communication system comprising a first transducer (106) that detects and converts external audio signals into internal electronic signals formatted to be compatible with internal operations of the communication system. The communication system also includes a second transducer (110) that converts internal communication signals into external audio signals. In addition, at least one echo cancellor (200) is included in the communication system and cancels undesirable internal communication signals. Assisting the at least one echo cancellor is a delay module (210) that enables the at least one echo cancellor to carry out specific cancellation procedures during a time period when specific undesirable communication signals are estimated to be passing through the echo cancellor.