Abstract:
PROBLEM TO BE SOLVED: To provide a radio receiver and a receiving method for surely detecting IBOC hybrid broadcast carrier waves. SOLUTION: The radio receiver (1) has a tuner (21) capable of tuning to a broadcast frequency, a signal generator (23) for generating a broadcast carrier wave detection signal at a frequency tuned by the tuner, and a control unit that acquires a first broadcast carrier wave detection signal from the signal generator by making the tuner tune to a first frequency, acquires a second broadcast carrier wave detection signal from the signal generator by making the tuning part tune to a second frequency, acquires a third broadcast carrier wave detection signal from the signal generator by making the tuner tune to a third frequency, and determines that the hybrid broadcast carrier waves are detected when the first/second/third broadcast carrier wave detection signals show the existence of broadcast carrier waves. Such a radio receiver is used for the receiving method. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
A method for rendering an alert message on a digital radio broadcast receiver is described. A digital radio broadcast signal is received at the digital radio broadcast receiver. Data corresponding to an alert message comprising type information for identifying a type of the alert message and message information is detected. If the type information satisfies a triggering condition for a type of alert message pre-selected by a user of the digital radio broadcast receiver, the message information is rendered at the digital radio broadcast receiver. A digital radio broadcast receiver that performs the method is also described.