US Patent 7471431 Hologram device and hologram recording/reproducing method

Patent 7471431 was granted and assigned to Sony on December, 2008 by the United States Patent and Trademark Office.

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Patent Inventor Names

Kunihiko Hayashi0

Muneyasu Maeda0

Nobuhiro Kihara0

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Patent abstract

A hologram device records information of an interference fringe of signal light and reference light onto a hologram recording medium and reproduces the recorded information by emitting the reference light onto a recording area of the hologram recording medium. The hologram device includes a recording/reproducing controller performing a recording operation of the information concurrently with a reproducing operation of previously-recorded information, and an error detector detecting an error in the previously-recorded information reproduced concurrently with the recording operation.

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=074714310

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