Dynamic mechanism optical subsystem > Having power driven optical transducer assembly > Plural transducers for a single disc side > Independently movable transducers > Patents

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Class Information
Number: 720/670
Name: Dynamic optical information storage or retrieval > Dynamic mechanism optical subsystem > Having power driven optical transducer assembly > Plural transducers for a single disc side > Independently movable transducers
Description: Subject matter wherein each optical transducer assembly moves independently from each other for accessing the optical storage medium free from the influence of the other transducer assemblies.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7151734	Player with two read heads for double-sided optical discs	Dec. 19, 2006
6262964	Disc player with objective lens arranged in a zigzag pattern	Jul. 17, 2001
5953308	Disc player with alternating ascending/descending guide devices	Sep. 14, 1999
5848049	Disc player with parallel objective lenses	Dec. 8, 1998
5754509	Disc device having heads mounted on the housing and movable in a radial direction	May. 19, 1998
5719848	Optical pickup system with independently movable multioptical elements	Feb. 17, 1998
5666462	Multi-player video song accompaniment apparatus	Sep. 9, 1997
5600623	Disc device having a plurality of heads each movable within a limited distance	Feb. 4, 1997
5327417	Optical disk drive and read/write apparatus	Jul. 5, 1994