Patent ID: 8270266

Claim:
A device for detecting wobbles on an optical disc, the device being utilized for generating a wobble signal according to a plurality of detection signals, the device comprising: an analog signal processing circuit arranged to perform analog signal processing on the detection signals to generate a plurality of output signals, wherein the analog signal processing circuit comprises: a plurality of arithmetic units arranged to perform a first arithmetic operation on two of the detection signals to generate a first composite detection signal, and arranged to perform the first arithmetic operation on another two of the detection signals to generate a second composite detection signal; a pair of analog-to-digital converters (ADCs) arranged to digitalize the output signals to generate a plurality of digital values; and a digital signal processing circuit arranged to perform digital signal processing on the digital values and generate an arithmetic output, wherein the digital signal processing circuit performs a second arithmetic operation on the digital values to generate the arithmetic output; wherein the device is utilized for detecting wobbles on the optical disc, and the device is utilized for generating the wobble signal according to the plurality of detection signals.