Tile control device and method

Tile control device and method

  • CN 1,459,099 A
  • Filed: 01/28/2002
  • Published: 11/26/2003
  • Est. Priority Date: 03/09/2001
  • Status: Active Application
First Claim
Patent Images

1. control the tilt control device that CD (1) recording surface tilts for one kind, described tilt control device comprises:

  • A) tilt detecting device (3) is used to detect the inclination of described recording surface.B) focus controlling device (7) is used to produce focus controlling output;

    WithC) focal length exciting bank (11) is used for the focus state according to described focus controlling output control optical recording/reproduction beam,It is characterized in that,D) caliberating device (10) utilizes described focus controlling output to demarcate the output offset of described tilt detecting device.

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