Track scanning for reproducing address information by crosstalk

A method for reproducing address information from an optical disk including a substrate having thereon grooves and lands as guide tracks for guiding a light beam, and a series of address pits recorded as address information of said tracks, said grooves and said lands being arranged to have a substantially equal width so as to enable recording of information on both the tracks formed by said grooves and said lands,

• the series of address pits being formed on the track of either one of said groove or said land,
• the series of pits on one of said grooves or lands and the series of pits on the adjacent groove or land are located in different radial directions of said optical disk for preventing the light beam from being simultaneously projected onto a plurality of the series of address pits on different tracks, said method comprising the steps of:
• applying a light beam to one of the tracks to follow the track;
• when the light beam scans a track having thereon the series of address pits, reading the address information by a signal obtained from the series of address pits on the track;
• and
• when the light beam scans a track having thereon no address pits, reading the address information by a crosstalk signal obtained from the series of address pits on the adjacent track.

A method for reproducing address information from an optical disk including a substrate having thereon grooves and lands as guide tracks for guiding a light beam, and a series of address pits recorded as address information of said tracks, said grooves and said lands being arranged to have a substantially equal width so as to enable recording of information on both the tracks formed by said grooves and said lands,

• the series of address pits being formed either on the track of said groove or said land, the series of pits on one of said grooves or lands and the series of pits on the adjacent groove or land are located in different radial directions of said optical disk for preventing the light beam from being simultaneously projected onto a plurality of the series of address pits on different tracks, and
• a center point of each of the series of address pits and a center line of each of said grooves or said lands being out of alignment,
• said method comprising the steps of:
• applying a light beam to one of the tracks to follow the track;
• when the light beam scans a track having thereon the series of address pits, reading the address information by a signal obtained from the series of address pits on the track;
• and
• when the light beam scans a track having thereon no address pits, reading the address information by a crosstalk signal obtained from the series of address pits on the adjacent track.