Digital signal processing apparatus for reproducing optical disc data and optical disc player having the same

An apparatus for processing information on an optical disc, comprising:

• a first signal processor for receiving a digital signal generated from an analog signal read from the optical disc, performing demodulation and error-correction with respect to the received digital signal to generate main data and corresponding subcode data for output;
• a memory unit for temporarily storing the main data and corresponding subcode data in predetermined blocks;
• a second signal processor for reading the main data and corresponding subcode data from the memory unit and outputting the main data and corresponding subcode data in parallel together with an acknowledge signal, in response to a predetermined request signal;
• and
• an output unit for outputting the request signal to the second signal processor and receiving in response thereto the main data, corresponding subcode data, and acknowledgment signal in parallel so as to process the main data based on the subcode data.

An optical disc player, comprising:

• an analog signal processor for processing an analog signal extracted from an optical disc to generate preliminary signal processed data;
• a digital signal processor for processing the preliminary signal processed data to generate digital signal processed data, storing the digital signal processed data in memory, retrieving the digital signal processed data from memory in response to a request signal, generating an acknowledge signal, and outputting the digital signal processed data in parallel together with the acknowledge signal;
• and
• an output unit for outputting the request signal to the digital signal processor, receiving the digital signal processed data in parallel, decoding the digital signal processed data based on the type of optical disc and outputting the decoded data to terminal equipment.

A method for processing information on an optical disc, comprising the steps of:

• processing an analog signal extracted from an optical disc to generate preliminary signal processed data;
• digital signal processing the preliminary signal processed data to generate digital signal processed data;
• generating a first control signal to output the digital signal processed data;
• and
• generating a second control signal and outputting the digital signal processed data in parallel together with the second control signal, in response to the first control signal.

A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for processing information on an optical disc, the method steps comprising:

• processing an analog signal extracted from an optical disc to generate preliminary signal processed data;
• digital signal processing the preliminary signal processed data to generate digital signal processed data;
• generating a first control signal to output the digital signal processed data;
• and
• generating a second control signal and outputting the digital signal processed data in parallel together with the second control signal, in response to the first control signal.