Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2007-03-27
2007-03-27
Hindi, Nabil (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S112160, C369S112230
Reexamination Certificate
active
10981694
ABSTRACT:
An optical pickup apparatus and an optical recording/reproducing apparatus employing the optical pickup apparatus, which can be adaptive for multiple types of optical discs different in the layout conditions such as recording density, etc., are provided. The optical pickup includes an optical pickup for accessing at least first and second optical recording mediums, the pickup comprising a first light source generating a first light beam of a first wavelength; a second light source generating a second light beam of a second wavelength different from the first wavelength; an optical section transmitting the first and second light beams; and an aperture number controller including a wave selecting member for selecting between the first and second light beams of different wavelengths so as to impinge a light beam with an appropriate aperture number to selectively access one of the at least first and second optical recording mediums.
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Jeong Seong Yun
Kim Jin Yong
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