Multi-layered disk focusing method and apparatus
作者： Nak-Seok Kim
DOI:
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摘要: A method and apparatus for focusing on a multi-layered disk is disclosed. The arrangement operates so that when it determined to focus the first layer, actuator voltage rapidly decreased bring down objective lens, then slowly increased lens up, layer achieved according detection status of error signal; second up lower signal.
lens.org 参考文章(9)
James H. Strickler, Reading device for multi-layered optical information carrier ,(1992)
Masataka Maeda, Kenzou Ishibashi, Optical recording and reproducing apparatus and recording medium having multilayer recording membranes ,(1991)
Antonius H. M. Holtslag, Derk Visser, Method of and apparatus for optically writing, reading and erasing a multi-plane record carrier, and record carrier suitable for said method and apparatus ,(1991)
Wayne I. Imaino, Alan A. Fennema, Hal J. Rosen, Optical disk drive with multiple data layer disk and system for focusing the optical beam ,(1994)
Kurt Allan Rubin, Wade Wai-Chung Tang, Milton Russell Latta, Hal Jervis Rosen, Multiple data layer optical disk drive system with fixed aberration correction and optimum interlayer spacing ,(1996)
Yasushi Azumatani, Hiroshi Hamasaka, Yuji Takagi, Isao Satoh, Yoshihisa Fukushima, Multi-layered optical disk with track and layer identification ,(1990)
Sadao Mizuno, Seiji Nishino, Yoshiaki Komma, Compound objective lens having two focal points ,(1994)
Kurt Allan Rubin, Margaret Evans Best, Timothy Carl Strand, Hal Jervis Rosen, Multiple data surface optical data storage system ,(1992)
Seiichi Ohsawa, Fumihiko Yokogawa, Multi-layered recording disk and recording/reproducing system using the same ,(1995)