In general, techniques are described for coding data defining a sequence using one-to-one codes. The power transmission control apparatus includes: a signal detection circuit that detects a signal induced by the primary coil; and a power transmission control circuit that determines a value of transmission data transmitted from the power reception apparatus by a load modulation, on the basis of an output signal of the signal detection circuit. The detected data is transmitted as color data to a CPU. The DA conversion unit is configured to generate an arbitrary n-th harmonic and superimpose the arbitrary n-th harmonic on an analog output signal including the existing n-th harmonic. The chilling device or cooling apparatus may be provided to a refrigerator or a refrigerating storage. The material of at least one of the two layers is obtained by curing an optical adhesive.