Reproducing power adjusting method, optical information recording/reproducing apparatus and information recording media
AssigneeHitachi Comsumer Electronics Co., Ltd.
InventorsSoichiro Eto, Toshimichi Shintani, Hiroyuki Minemura
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Abstract
By referring to a table of reproducing conditions and medium specific parameters, stored in an optical disc or optical disc apparatus and/or generated by the optical disc apparatus, the medium specific parameters to be used for performing reproducing power adjustment are changed in accordance with the reproducing condition to execute reproducing power adjustment.
Claims19
A reproducing power adjusting method of adjusting a reproducing power to be used for super-resolution reproducing, comprising steps of:
- observing a monitor parameter as an index reflecting a reproducing condition of said super-resolution reproducing;
- judging whether or not the reproducing condition of super-resolution has changed;
- and
- when it is judged that the reproducing condition of super-resolution has changed, resetting a target value of said monitor parameter in accordance with said changed reproducing condition, and
- adjusting said reproducing power so as to make said monitor parameter coincident with said target value which has been reset after a change in said reproducing condition.
An information recording/reproducing apparatus provided with a function of performing super-resolution reproducing for a predetermined information recording medium, comprising:
- a means for acquiring a super-resolution reproduced signal from said information recording medium;
- a means for acquiring information recorded in said information recording medium as digital data, from said reproduced signal;
- and
- an information processing means for performing predetermined information processing relative to said acquired digital data, including:
- calculating a reproducing power and a monitor parameter as an index reflecting a reproducing condition of said super-resolution reproducing, and judging whether the reproducing condition of super-resolution has changed;
- wherein:
- when said information processing means judges that the reproducing condition of super-resolution has changed, a target value of said monitor parameter is reset in accordance with said changed reproducing condition, and
- said reproducing power is calculated so as to make said monitor parameter coincident with said target value which has been reset after a change in said reproducing condition.
An information recording/reproducing apparatus configured to perform super-resolution reproducing for a predetermined information recording medium, the apparatus comprising:
- a first acquisition unit configured to acquire a super-resolution reproduced signal from said information recording medium;
- a second acquisition unit configured to acquire information recorded in said information recording medium as digital data, from said reproduced signal;
- and
- an information processing unit configured to perform predetermined information processing relative to said acquired digital data, said information processing including:
- calculating a reproducing power, and a monitor parameter as an index reflecting a reproducing condition of said super-resolution,
- judging, based on said monitor parameter, whether the reproducing condition of said super-resolution has changed, and
- wherein when said information processing unit judges that the reproducing condition of super-resolution has changed, resetting a target value of said monitor parameter in accordance with said changed reproducing condition, and calculating said reproducing power so as to make said monitor parameter coincident with said target value.
Dependencies are inferred from the claim text.