Method and apparatus for processing information data

Claim 1

A method for reproducing error correction encoded information data recorded on tracks of a recording medium under the control of a host computer, comprising the steps of: receiving from the host computer, at a first time, a first track number of a first track from which first recorded error correction encoded information data is to be reproduced; moving a reproducing pickup means with regard to the recording medium to the first track; reproducing the first recorded error correction encoded information data from the recording medium as a reproduced signal; demodulating first error correction encoded information data from the reproduced signal; storing the first error correction encoded information data; receiving from the host computer, at a second time, a second track number of a second track from which second recorded error correction encoded information data is to be reproduced; moving the reproducing pickup means with regard to the recording medium to the second track; and decoding error correction codes of the stored first error correction encoded information data during movement of the reproducing pickup means to the second track.

Claim 2

A method for reproducing error correction encoded information data recorded on tracks of a recording medium under the control of a host computer, comprising the steps of: receiving from the host computer, at a first time, a first track number of a first track from which first recorded error correction encoded information data is to be reproduced; moving a reproducing pickup means with regard to the recording medium to the first track; reproducing the first recorded error correction encoded information data from the recording medium as a reproduced signal; demodulating first error correction encoded information data from the reproduced signal; storing the first error correction encoded information data; receiving from the host computer, at a second time, a second track number of a second track from which second recorded error correction encoded information data is to be reproduced; moving the reproducing pickup means with regard to the recording medium to the second track; and decoding error correction codes of the stored first error correction encoded information data during movement of the reproducing pickup means to the second track.

Claim 3

An apparatus for reproducing error correction encoded information data recorded on tracks of a recording medium under the control of a host computer, comprising: means for receiving from the host computer, at a first time, a first track number of a first track from which first recorded error correction encoded information data is to be reproduced, and, at a second time, a second track number of a second track from which second recorded error correction encoded information data is to be reproduced; means for moving a reproducing pickup means with regard to the recording medium to the first track or to the second track; means for reproducing the first recorded error correction encoded information data from the recording medium as a reproduced signal; means for demodulating first error correction encoded information data from the reproduced signal; a memory for storing the first error correction encoded information data; and means for decoding error correction codes of the stored first error correction encoded information data during movement of the reproducing pickup means to the second track.

Claim 4

An apparatus for reproducing error correction encoded information data recorded on tracks of a recording medium under the control of a host computer, comprising: means for receiving from the host computer, at a first time, a first track number of a first track from which first recorded error correction encoded information data is to be reproduced, and, at a second time, a second track number of a second track from which second recorded error correction encoded information data is to be reproduced; means for moving a reproducing pickup means with regard to the recording medium to the first track or to the second track; means for reproducing the first recorded error correction encoded information data from the recording medium as a reproduced signal; means for demodulating first error correction encoded information data from the reproduced signal; a memory for storing the first error correction encoded information data; and means for decoding error correction codes of the stored first error correction encoded information data during movement of the reproducing pickup means to the second track.