The detection output of a knock sensor, which detects knock of an internal combustion engine, is filtered by a filter in which the filtering frequency band is variable. The image sensor package includes a circuit board and an image sensor mounted on the circuit board. Said second terminals are disposed on the insulating body, several second contact portions are provided on the second terminals respectively, and the second contact portions are exposed on a second surface of the insulating body. For reverse arthroplasty, the method includes attaching the adapter to the glenoid and the cup to the stem.