DSP based SLIC architecture with current-sensing voltage...

Dual impedance hybrid

Dual mode LMS nonlinear data echo canceller

Dual network housing device

Dual personality analog port

Dual voltage, self-monitoring line circuit

Dual-limit current-limiting battery-feed circuit for a digital l

Dual-slope current battery-feed circuit

Dynamic allocation of overhead voltage to support...

Dynamic echo canceller and parameter selection in telephony syst

Echo canceler

Echo canceler and echo path estimating method

Echo canceler and method for learning for the same

Echo canceler and method thereof

Echo canceler E-side speech detector

Echo canceler employing segment-based reinitialization

Echo canceler for use in communications system

Echo canceler having plurality of adaptive filter circuits

Echo canceler-suppressor speakerphone

Echo canceling method and apparatus in a communication device