WO/2004/109664 is referenced by 1 patents.

The invention relates to an optical scanning device for scanning an information carrier comprising a plurality of information layers which optical properties depend on a potential difference applied between two electrodes. The optical scanning device comprises a fixed part comprising means (302) for generating a signal comprising information about a selected information layer, and a rotating part comprising means (301) for receiving the information carrier. The receiving means comprise a plurality of contacts (311-318) for connecting the electrodes, means (303) for detecting the signal, means (304) for decoding the signal and means (304) for applying a potential difference between the contacts connected to the electrodes corresponding to the selected information layer.

Title
Optical scanning device
Application Number
PCT/IB2004/001847
Publication Number
2004/109664
Application Date
June 3, 2004
Publication Date
December 16, 2004
Inventor
Kalman Josephus
Wilderbeek Johannes
Padiy Alexander
Mark Martinus
Van Der
Meinders Erwin
Agent
CHAFFRAIX Jean
Assignee
Kalman Josephus
Wilderbeek Johannes
Padiy Alexander
Mark Martinus
Van Der
Meinders Erwin
Koninklijke Philips Electronics
IPC
G11B 07/00
G11B 07/004
G11B 07/0037
G11B 19/20
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