An electronic instrument includes: a display control unit for displaying a control content corresponding to the command information based on the result of the speech recognition; an instruction unit for instructing that a control for the control content displayed by the display control unit, is cancelled;...http://www.google.com/patents/US7853448?utm_source=gb-gplus-sharePatent US7853448 - Electronic instrument for speech recognition with standby time shortening and acoustic model deletion
