Patent ID: 8138915

Claim:
A method for rendering an alert message on a digital radio broadcast receiver, said method comprising: controlling said digital radio broadcast receiver to maintain a power condition in which a clock function is powered on and in which tuner functions and rendering functions are powered off; controlling said digital radio broadcast receiver to periodically power on said tuner functions to receive a digital radio broadcast signal; receiving a digital radio broadcast signal at said digital radio broadcast receiver; detecting data corresponding to an alert message within said digital radio broadcast signal, said data comprising message information and category type information of the detected alert message, wherein the category type information identifies a category of said message information conveyed by the alert message; determining with a processing system whether said category type information of the detected alert message satisfies a triggering condition corresponding to a category type of alert message pre-selected by the user at a user interface of the digital radio broadcast receiver as a category of alert message that the user desires to receive; if said triggering condition is satisfied, powering on said rendering functions of said digital radio broadcast receiver and rendering said message information of said alert message at said digital radio broadcast receiver; and if said triggering condition is not satisfied, powering off said tuner functions of said digital radio broadcast receiver.