发明申请
- 专利标题: RECORDING POWER DETERMINATION METHOD AND DEVICE
- 专利标题(中): 记录功率测定方法和装置
-
申请号: US13010222申请日: 2011-01-20
-
公开(公告)号: US20110116352A1公开(公告)日: 2011-05-19
- 发明人: Mamoru SHOJI , Yasumori Hino , Takahiro Sato , Yuu Okada
- 申请人: Mamoru SHOJI , Yasumori Hino , Takahiro Sato , Yuu Okada
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 优先权: JP2004-019582 20040128; JP2004-057198 20040302; JP2004-208135 20040715
- 主分类号: G11B7/12
- IPC分类号: G11B7/12
摘要:
A recording power determination method for determining a recording power of an optical beam for recording data on an information storage medium includes the steps of recording test data on the information storage medium at a plurality of test recording powers; reading the test data recorded at each test recording power, generating a signal, and measuring a modulation factor of the signal corresponding to each test recording power; calculating a product of an n'th power of each test recording power and the corresponding modulation factor, thereby obtaining a plurality of products corresponding to the plurality of test recording powers, where n is a value of exponent and is a real number other than 1; calculating a first recording power based on the correlation between the plurality of test recording powers and the plurality of products; and calculating the recording power based on the first recording power.
公开/授权文献
- US08270258B2 Recording power determination method and device 公开/授权日:2012-09-18