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发明授权
US6144742A Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk 有权
光盘，光盘条形码形成方法，光盘再现装置，标记形成装置，在光盘上形成激光标记的方法以及制造光盘的方法

Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk
摘要：
Disclosed is an optical disk barcode forming method wherein, as information to be barcoded, position information for piracy prevention, which is a form of ID, is coded as a barcode and is recorded by laser trimming on a reflective film in PCA area of an optical disk. When playing back the thus manufactured optical disk on a reproduction apparatus, the barcode data can be played back using the same optical pickup.
摘要（中）：

公开了一种光盘条形码形成方法，其中作为条形码信息，作为ID形式的防盗用位置信息被编码为条形码，并通过激光修整记录在光学PCA区域中的反射膜上 磁盘。 当在再现装置上播放由此制造的光盘时，可以使用相同的光学拾取器来重放条形码数据。

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