An imaging device includes a first detection unit, a vector correction unit, and a second detection unit. The contact terminals include a plurality of solder tails extending out of the metallic shell. As a result of determining if the change in the at least one parameter is to be treated as erroneous, a further action may be performed. The control module is connected to existent or provided vehicle wiring and thus to respective operational equipment such that user actuation of a grip control induces the control module to provide a corresponding output to activatedeactivate or regulate the operation of the respective vehicle equipment. The top and bottom surfaces of each sidewall are formed with raised areas and non-raised areas which interlock with adjacent blocks. While remote copy can be executed at a long distance without data loss, the deterioration of the performance of a database process on a main site can be suppressed.