The present invention makes it possible to include, when encoding processing is applied to three color components using a 4:0:0 format, data for one picture in one access unit and makes it possible to set the same time information or the same set encoding modes among the respective color components. The power circuit includes a data communications port, a power supply connection coupled to the power supply, and a power controller coupled to the data communications port and the power supply connection. Thereafter, the memory clock control logic adjusts the frequency of the memory clock signal to a lower frequency clock signal, and in response to the frequency of the memory clock signal becoming stable, the memory clock control logic restores the memory to a normal mode using the lower adjusted frequency memory clock signal. The second cover member is configured to mate with the first cover member to define an enclosure that encloses the first ends of the insulators and a region therebetween.