Disc transport apparatus and disc transport method as well as disc drive apparatus and disc drive method

Disc transport apparatus and disc transport method as well as disc drive apparatus and disc drive method

  • CN 1,645,499 A
  • Filed: 09/30/2004
  • Published: 07/27/2005
  • Est. Priority Date: 10/03/2003
  • Status: Active Application
First Claim
Patent Images

1. one kind coils device, comprising:

  • A recording medium installation portion, it can install one first dish and second dish that has less than second diameter of first diameter with first diameter;

    The optical detection part, it uses a light receiver to receive reflected light from a detected object in response to the light that sends from a light emission part, and when a dish with first diameter is installed on the recording medium installation portion, this optical detection part is positioned at the position facing to this dish, and when a dish with second diameter was installed on the recording medium installation portion, this optical detection part was not in the face of this dish;

    AndControl piece, its testing result based on the optical detection part detects whether a dish has been installed.

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