Synchronizing an asynchronously detected servo signal to synchronous servo demodulation

Apparatus for synchronizing synchronous processing using data detected asynchronously, comprising:

• (a) means for detecting a first set of data in a signal comprising synchronous samples and interpolated samples, wherein the first set of data is detected asynchronously as corresponding to one of the samples;
• (b) means for determining a time to transmit a data-found signal based on an offset between the data-detected sample and one of the synchronous samples;
• and
• (c) means for transmitting the data-found signal at the determined time to enable the synchronous processing of the synchronous samples.

A read channel component comprising:

• an analog-to-digital (A/D) converter adapted to generate synchronous samples based on a signal received from a data channel;
• one or more interpolators adapted to generate interpolated samples based on the synchronous samples;
• an asynchronous data detector adapted to:
• receive the synchronous samples and the interpolated samples;
• detect a first set of data as corresponding to one of the samples;
• determine a time to transmit a data-found signal based on an offset between the data-detected sample and one of the synchronous samples;
• and
• transmit the data-found signal at the determined time;
• and
• a synchronous processor adapted to perform synchronous processing of the synchronous samples based on receipt of the data-found signal.