Hologram multiplex recording and method, and hologram reproducing device and method

A multiple recording and hologram technology, which is applied in the direction of recording/reproducing/erasing using optical interference patterns, optical recording/reproducing/erasing methods, recording information storage, etc., can solve the problems of diffraction efficiency, distortion, etc.
CN101292202AInactive Publication Date: 2008-10-22PANASONIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANASONIC CORP
Publication Date
2008-10-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

A hologram multiplex recording device multiplex-records a hologram in each of recording regions provided in a hologram recording medium. After a hologram is multiplex-recorded a predetermined N times in each of the recording regions contained in a predetermined range or in the whole of the hologram recording medium, a hologram recording is performed for the (N+1) time in each of the recording regions contained in the range or the whole. Accordingly, while another n (n=0, 1, 2, ...) recording regions are overlain in each recording region arranged in the hologram recording medium, the multiplex degree difference between the recording regions does not exceed a predetermined n+1 in the aforementioned range or the whole of the hologram recording medium.
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Description

Hologram multiplex recording device and method thereof, hologram reproducing device and method thereof technical field

[0001] The present invention relates to hologram recording, and more particularly to a hologram multiplex recording device and method for multiplexly recording a plurality of holograms in an arbitrary recording region of a hologram recording medium. Background technique

[0002] In recent years, with the rapid development of information technology including the digitization of information, the concept of "distributing (distributing) various content information including video and audio at high speed while maintaining high quality, so that users can make full use of it" is gaining ground. Furthermore, the user utilization information of "save the above-mentioned transmission data temporarily, for example, in a hard disk, select information desired to be stored for a long time from the stored data, edit the selected information, and store it in another rec...

Claims

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