An antenna assembly, a receiver, and a system configured to superimpose a first received signal from a first antenna and an intermediate signal based on a second received signal from a second antenna onto a single cable. During the image reading operation, an operation state control signal is output from the image reading apparatus to the PDA. However, the drilling bush does not terminate flush with the workpiece, but comprises a linear supporting edge that overlaps the apex of the curvature of the workpiece. In other embodiments, equipment is configured to stack and stage mass containers. Furthermore, in this case, only in a case where determination has been made that the amount of credits bet on the game matches the maximum bet amount, the difference between the counted number of games and the predetermined number is displayed.