Patent ID: 8081119
Filing Date: 2011-12-20
Classification: G06K,H01L,H01Q,H05K

Abstract:
1. A product comprising: a product body; a power supply circuit board including a power supply circuit including an inductance element; and a wireless communication circuit board which is electrically connected to the power supply circuit; wherein one of the power supply circuit board and the wireless communication circuit board is mounted on the other, or the power supply circuit board and the wireless communication circuit board are integrally formed as single board, and the other board or the integrally formed board is mounted on the product body; the product includes a radiation plate arranged to perform at least one of a function of emitting a transmission signal which is supplied from the power supply circuit through electromagnetic field coupling and which has a frequency substantially determined by a resonant frequency of the power supply circuit, and a function of supplying a reception signal to the power supply circuit through the electromagnetic field coupling; and the power supply circuit board has a multi-layered structure including a plurality of layers, and the inductance element is provided within the power supply circuit board and has a coil shape that extends to at least two of the plurality of layers.