An automated monitoring service downloads image files and audio files from various Internet sites, and checks these files for the presence of embedded digital watermark data. A plurality of electronic communications of a plurality of users are accessed, wherein the electronic communications relate to a common project engaged in by the users. , in LTE wireless systems, by using control signaling provided by a wireless network. The test controller causes one of the plurality of information processing devices to execute a communication test with respect to the address of the storage device. The body bias voltage generator selectively provides a higher one of the first voltage and a voltage on the input node to a body of the second switch set.