Patent ID: 7233551

Claim:
An optical disk control device comprising a digital signal processing means and an analog signal processing means, said digital signal processing means comprising an A/D conversion command means for converting analog signals, and a serial transfer means, said analog signal processing means comprising: a playback signal detection means for detecting data recorded on a disk; a serial reception means for receiving a signal transferred from the serial transfer means on the basis of a conversion command from said A/D conversion command means of the digital signal processing means; and a signal switching means for successively selecting plural data signals obtained by the playback signal detection means, according to a signal received by the serial reception means, and for time-division-multiplexing the selected signals; said digital signal processing means comprising: an A/D conversion means for analog-to-digital conversion of a data signal transferred from the analog signal processing means; and an arithmetic processing means for performing arithmetic processing on digital signals outputted from the A/D conversion means; said A/D conversion command means for first setting an order of acquiring digital signals outputted from the arithmetic process means, and then generating an A/D conversion command instructing performance of an A/D conversion according to said set order; and said serial transfer means for serially transferring a command signal from the A/D conversion command means.