Multi-head device for optical disk and recording/reproducing system for multiple users utilizing the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJin-ku Kang, Sung-han Ha, Tae-seok Park, Chul-woo Lee
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Abstract
A recording/reproducing system for multiple users is disclosed which includes a plurality of channels connected to multiple users, a data processing portion for processing a signal of input/output information of an optical disk, and an optical head portion for reading and writing the information of optical disk. The optical head portion has at least one ultra-slim, subminiature multi-head device commonly having at least two optical heads, thereby allowing individuals to process desired information at any time.
Claims21
A multi-head device for optically reading information from and writing information on a single optical disk, said device comprising:
- a plurality of rotating plates rotatably supported about an axis;
- a plurality of arm members, each arm member being connected to a respective rotating plate and including, on a front portion, an optical head including an objective lens;
- driving means for respectively rotating said rotating plates;
- and
- focusing means for controlling focusing of each of said objective lenses in response to vibrations of the optical disk.
A recording/reproducing system in which multiple users are able to record information on and reproduce information from an optical disk, said system comprising:
- an optical head portion having a plurality of optical heads, each optical head emitting a respective light signal for reading information from and writing information on the optical disk;
- a plurality of channels, each channel having a data input port and a data output port;
- and
- a data processing portion for processing signals input via respective data input ports for driving said optical heads and for processing signals read out through said optical heads to respective output ports.
Dependencies are inferred from the claim text.