Title:
光情報記録装置および方法および信号処理回路
Document Type and Number:
Japanese Patent JP4523470
Kind Code:
B2
Abstract:
It is an object of the present invention to provide a recording condition closer to an optimum even for a medium unknown to a drive, and more particularly, to provide means for obtaining a preferable recording condition even for a high-speed recording in which conducting a test recording is difficult. In order to accomplish the object, a power and a phase of a recording pulse are simultaneously corrected at predetermined timing, depending on a recording speed or a recording position such as an inner or outer circumference. For instance, a phase shift Phase generated due to a continuing recording from an inner circumference to an outer circumference at x2 speed is corrected simultaneously with a correction of a power shift at the timing when a recording speed is changed from x2 to x4. For the other recording speed, in the same manner as above, a power and a phase shift are simultaneously corrected at every timing when a recording speed is changed.
More Like This:
Inventors:
Sekiguchi Shinsei
Hiroya Kakimoto
Isao Matsuda
Teiichi Sato
Hiroya Kakimoto
Isao Matsuda
Teiichi Sato
Application Number:
JP2005095241A
Publication Date:
August 11, 2010
Filing Date:
March 29, 2005
Export Citation:
Assignee:
TAIYO YUDEN CO.,LTD.
International Classes:
G11B7/0045; G11B7/125
Domestic Patent References:
| JP2003085760A | ||||
| JP2004355727A | ||||
| JP2005044430A |
Attorney, Agent or Firm:
Takahisa Kimura