发明名称 |
Apparatus for recording/reproducing information data in two dimensional format |
摘要 |
In an information recording/reproducing apparatus constructed of: a buffer for storing therein consecutive recording data in a unit of two dimensional conversion; a coding device for converting the consecutive recording data into a two-dimensional data arrangement arranged by "n" lines and "m" columns corresponding to said unit of data; a recording device for subdividing said two-dimensional data arrangement arranged by "n" lines and "m" columns so as to be read out, and for controlling "m" pieces of light sources in accordance with these data series; and an optical apparatus for converging luminous fluxes from said "m" pieces of light sources so as to form "m" pieces of spots on a disk plane, the recording data is recorded on the disk plane as an optically distringuishable pit group having two-dimensionally extended areas arranged by "n" lines and "m" columns. During a reproducing operation, the reflected light is detected by "m" pieces of detectors; "m" columns of one-dimensional data series are generated from the reflected light detected by these detectors in a generator; and also consecutive data is reproduced from the two dimensional data arranged by "n" lines and "m" columns in a decoder.
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申请公布号 |
US5657308(A) |
申请公布日期 |
1997.08.12 |
申请号 |
US19950557319 |
申请日期 |
1995.11.14 |
申请人 |
HITACHI, LTD. |
发明人 |
MAEDA, TAKESHI;SAITO, ATSUSHI;IDE, HIROSHI |
分类号 |
G11B7/004;G11B7/013;G11B7/09;G11B7/13;G11B7/135;G11B7/14;G11B11/105;G11B20/14;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/004 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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