System and method for switching a mode of a receiver using block estimation

摘要

A system and method for switching a mode of a receiver between a monophonic and stereophonic mode is disclosed. The method can include generating a residual signal indicative of a noise level associated with a pilot energy signal, calculating a residual block energy level of the residual signal over an observation interval, generating a monitor signal based on a number of times the pilot energy signal is less than a pilot energy threshold during the observation interval and switching the mode of the receiver based on the residual block energy level and the monitor signal.

主权项

1. A method for changing a mode of a receiver, the method comprising;
calculating a residual block energy level of a residual signal associated with a pilot energy signal; generating a monitor signal based on the pilot energy signal; changing the mode of the receiver based on the residual block energy level and the monitor signal; and designating a portion of the residual signal as either a mono block or a stereo block based on the residual block energy level and the monitor signal.