发明授权
- 专利标题： 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
- 专利标题（中）： 光盘，光盘形成方法，光盘再现装置，标记形成装置，形成光盘上的激光标记的方法以及制造光盘的方法
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申请号： US09713148申请日： 2000-11-15
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公开(公告)号： US06449366B1公开(公告)日： 2002-09-10
- 发明人: Yoshiho Gotoh , Mitsuaki Oshima , Shinichi Tanaka , Kenji Koishi , Mitsuro Moriya
- 申请人： Yoshiho Gotoh , Mitsuaki Oshima , Shinichi Tanaka , Kenji Koishi , Mitsuro Moriya
- 优先权： JP7-261247 19951009; JP8-008910 19960123
- 主分类号： H04N7167
- IPC分类号： H04N7167
摘要：
A barcode is formed on an optical disk. The optical disk is provided with a control data area and an identifier for indicating the presence or absence of the barcode in the control data area. A beam pattern if focused on a reflective film of the optical disk in an information signal region on which the data is recorded. Information is provided for making the barcode. The information is PE-modulated so that a width of a mark of the barcode is half or less than a period of the barcode marks. The optical disk is rotated to form the barcode.