According to one embodiment, a display device includes a display, a circuit substrate, connector terminals, a first cover, a second cover, and a fastening member. An address coincidence detector is coupled to each of the ports. A plurality of network telephones are part of the network telephone system with each network telephone connected to the network. This reduces buffering requirements in the decoder, and relaxes time constraints on the error correction calculations. Vases may be placed on a cake or other food product permitting the cake or food product to be attractively and easily decorated. As the cam plate rotates, an engagement piece sways in conformity with the cam shape of the cam, so that a claw of the engagement piece can become engaged with or disengaged from a parking gear, whereby parking lock is locked or released.