Patent ID: 8837262

Claim:
A control circuit for an optical disk drive, comprising: a microphone generating an analog signal corresponding to a voice; an analog-to-digital (A/D) conversion module configured to convert the analog signal into a first digital signal; a control module configured to output an operation signal according to a status of the optical disk drive; and a processing module configured to boost or reduce the first digital signal for predetermined times, to generate a plurality of second digital signals, wherein the processing module is configured to receive the operation signal from the control module, and determine whether the operation signal is equal to one of the second digital signals, the processing module outputs a first processing signal responsive to the operation signal being equal to one of the second digital signals, and outputs a second processing signal responsive to the operation signal being not equal to any one of the second digital signals; wherein when the control module receives the first processing signal, the control module controls the optical disk drive in a status different from a current status, and when the control module receives the second processing signal, the control module maintains the optical disk drive in an original status.