Title:
【発明の名称】ディスクの種類を識別する手段を有した光記録媒体への書き込み読み出し装置
Document Type and Number:
Japanese Patent JP2001518676
Kind Code:
A
Abstract:
A device for reading or writing on optical recording media with disk type recognition capability has an optical scanning device and a focus regulating circuit. The arrangement provides rapid and reliable recognition of the recording medium type inserted into the device. A further inventive aspect provides a corresponding process. These inventive aspects are attained by the disk type recognition capability which includes a mirror signal generator, a threshold value generator, a counter and an evaluation unit. The process is based on the utilization of a mirror-signal value of the device for disk type recognition.
Inventors:
Grimm Michael
Application Number:
JP2000514268A
Publication Date:
October 16, 2001
Filing Date:
August 31, 1998
Export Citation:
Assignee:
Deutsche Thomson-Brand Gamebha
International Classes:
G11B7/085; G11B19/12; G11B7/09; (IPC1-7): G11B19/12; G11B7/085
Attorney, Agent or Firm:
Keiichi Yamamoto