Power measuring receiver methods and apparatus for measuring power of signals are provided in which a high frequency measuring circuit, a conversion measuring circuit, and an intermediate frequency measuring circuit work in conjunction with each other to measure a wide power range of signals. A switching mechanism is associated with the first and second magnets to rotate the first and second magnets between a first position, in which the first and second magnets respectively attract and repel the third magnet, and a second position, in which the first and second magnets respectively repel and attract the third magnet. The ESD shield configured to increase the ESD hardness of the package. Light generated in the luminescent layer is multiply reflected between the anode and the semi-transparent electrode to be emitted from the cathode. The third data is decoded in place of the second data in a case where a loss or an error has occurred in the stream of the second audio signal. If the lost frame detector determines that the encoded frame is erased, a FEC module applies a frame concealment process to the signal.