System and method for generating output signals indicating specific areas on an optical disc utilizing a protection means

A system for generating an output signal indicating a specific area on an optical disc, comprising:

• a detecting circuit, for detecting pre-recorded address information on the optical disc to generate a detection signal;
• a header signal generator, for detecting headers on the optical disc to generate a header signal;
• a state machine, coupled to the detection circuit and the header signal generator, comprising a plurality of states and determining a reloading timing according to the states, the detection signal and the header signal;
• a counter, coupled to the state machine, for computing a counter value and reloading the counter value according to the reloading timing determined by the state machine;
• and
• an output signal generator, coupled to the counter, for generating the output signal according to the counter value.

A system for generating an output signal indicating a specific area on an optical disc, comprising:

• a detecting circuit, for detecting pre-recorded address information on the optical disc to generate a detection signal;
• a header signal generator, for detecting headers on the optical disc to generate a header signal;
• a state machine, coupled to the detection circuit and the header signal generator, comprising a plurality of states and determining a reloading timing according to the states, the detection signal and the header signal;
• a protection circuit, coupled to the state machine, for computing a first counter value and reloading the first counter value according to the reloading timing determined by the state machine;
• a counter, coupled to the protection circuit, for computing a second counter value and reloading the second counter value according to the first counter value;
• and
• an output signal generator, coupled to the counter, for generating the output signal according to the second counter value.

A method for generating an output signal indicating a specific area on an optical disc, comprising:

• (a) detecting pre-recorded address information on the optical disc to generate a detection signal;
• (b) detecting headers on the optical disc to generate a header signal;
• (c) computing a first counter value;
• (d) reloading the first counter value according to the detection signal and the header signal, wherein the first counter value is not successively reloaded twice due to the header signal;
• (e) computing a second counter value;
• (f) reloading the second counter value according to the first counter value;
• and
• (g) generating the output signal according to the first counter value.

A method for generating an output signal indicating a specific area on an optical disc, comprising:

• (a) detecting pre-recorded address information on the optical disc to generate a detection signal;
• (b) detecting headers on the optical disc to generate a header signal;
• (c) determining a state;
• (d) determining a reloading timing according to the state, the detection signal and the header signal;
• (e) computing a counter value;
• (f) reloading the counter value according to the reloading timing determined in the step (d);
• and
• (g) generating the output signal according to the counter value.

A method for generating an output signal indicating a specific area on an optical disc, comprising:

• (a) detecting pre-recorded address information on the optical disc to generate a detection signal;
• (b) detecting headers on the optical disc to generate a header signal;
• (c) determining a state;
• (d) determining a reloading timing according to the state, the detection signal and the header signal;
• (e) computing a first counter value;
• (f) reloading the first counter value according to the reloading timing determined by the step (d);
• and
• (g) computing a second counter value;
• (h) reloading the second counter value according to the first counter value;
• and
• (i) generating the output signal according to the second counter value.