Identification data addressing method, swinging address coding circuit and detecting method and circuit

Abstract

A physical identification data (PID) addressing method using a wobble signal, a wobble address encoding circuit, a method and circuit for detecting the wobble address and a recording medium therefor. Groove tracks are classified into odd groove tracks and even groove tracks. Address information indicating physical identification information is phase modulated using wobble signals having a predetermined phase difference between two adjacent groove tracks, and recorded in each groove track so that address information modulated using the wobble signals having the phase difference of 90 DEG between adjacent two groove tracks can be a quadrature phase shift keying (QPSK) signal. Accordingly, a larger amount of data can be recorded on the recording medium, and since an interval in which a wobble signal disappears is not caused, recovery of a wobble clock signal can be advantageously performed.

Description

technical field [0001] The present invention relates to optical recording / playback, and in particular to a physical identification data (PID) addressing method utilizing a wobble signal (wobble signal), a wobble address encoding circuit, a method and a circuit for detecting a wobble address, and high-density optical recording and The recording medium in the system is reproduced. Background technique [0002] Information used for physical position identification in optical recording and reproducing systems to determine where data is written on a disc is called Physical Identification Data (PID). In general, the PID is address information of a physical sector in a recording and reproducing medium on which data is recorded in units of sectors. This is the basic information for recording data at a certain location on the disc and for finding that location later. [0003] In other words, the PID represents address information for finding a specific sector to record data at a ce...

AI Technical Summary

Problems solved by technology

[0014] In order to solve the above problems, the first object of the present invention is to provide a new physical identification data (PID) addressing method utilizing wobble, to solve the overhead problem of utilizing the addressing method of embossing pre-pit, and Solve the incompatibility of traditional wobble addressing methods with land and groove recording methods

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