Information access apparatus for optical disc having a...

Details Information access apparatus for optical disc having a... Information access apparatus for optical disc having a...

G - Physics

11

B

G11B 7/085 (2006.01) G11B 7/09 (2006.01) G11B 7/00 (2006.01)

Patent

CA 2187968

An information access apparatus for an optical disc according to the present invention has an optical head trans- porting device for initiating movement of the laser focusing point to a different plane on an optical disc, and an optical head seek controlling device for radially transporting an optical head to a target track radially of the optical disc while counting tracks on a plane of a predetermined layer of the optical disc. A plane selecting device is provided for selecting the plane having an optimum SN ratio of a tracking signal a maximum amplitude tracking signal, or a maximum amplitude readout signal obtained from each recording layer of the optical disc when retrieving information on the optical disc, and a focus jump controlling device is provided for controlling movement from a plane on which focusing is currently performed to another plane selected by the plane selecting device when an information access command is issued from a host device.

Affiliated with

Also associated with

Rating

Information access apparatus for optical disc having a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Information access apparatus for optical disc having a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information access apparatus for optical disc having a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1839443