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Patent Searching and Data


Title:
HOLOGRAPHIC DEVICE AND RECORDING METHOD
Document Type and Number:
WIPO Patent Application WO/2010/029608
Kind Code:
A1
Abstract:
A recording method in a holographic device which includes a holding device for movably holding a recording medium and an optical deflector for varying the crossing angle of reference light at predetermined angle intervals so as to cross both optical paths of the coherent reference light and signal light modulated by two-dimensional data according to information which should be recorded each other in the recording medium and multiplex-records the optical interference pattern of the reference light and signal light on the unit recording area of the recording medium as a hologram in a page unit for each of the angle intervals. The recording method includes a step of recording a user page containing arbitrary information which should be recorded on the unit recording area at a first angle interval and a step of spacing an address page containing address information required to access the unit recording area from the adjacent user page at a second angle interval larger than the first angle interval and recording it. The second angle interval exceeds the wobbling angle width of the surface of the recording medium.

Inventors:
OGASAWARA MASAKAZU (JP)
Application Number:
PCT/JP2008/066234
Publication Date:
March 18, 2010
Filing Date:
September 09, 2008
Export Citation:
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Assignee:
PIONEER CORP (JP)
OGASAWARA MASAKAZU (JP)
International Classes:
G11B7/0065; G03H1/26
Foreign References:
JP2008097701A2008-04-24
JP2007240581A2007-09-20
JP2006155831A2006-06-15
Attorney, Agent or Firm:
FUJIMURA, Motohiko (JP)
Toson Motohiko (JP)
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