Patent Number: 7,613,087

Title: Apparatus and method for accurately converting groove/land polarity upon groove/land track change on optical medium

Abstract: The present invention discloses an apparatus and method for accurately converting a groove/land polarity upon a groove/land track change on an optical medium, by way of initially deciding a reference groove/land changing point or a decoded PID of any one specific sector formed on the optical medium. By counting a specific number of sectors from the reference groove/land changing point or the specific sector, a subsequent groove/land changing point will easily be approached for converting the groove/land polarity, and even the other oncoming track changing points on the optical medium also can be determined.

Inventors: Lin; Meng-hsueh (Banciao, TW)

Assignee: MEDIATEK Inc.

International Classification: G11B 27/36 (20060101); G11B 20/10 (20060101)

Expiration Date: 1/03/02017