Hologram reproducing apparatus
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United States of America Patent
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Jul 20, 2010
Grant Date -
Jan 29, 2009
app pub date -
Oct 3, 2007
filing date -
Oct 17, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hologram reproducing apparatus includes a reference-light spatial-light modulating section that displays a reference light pattern for generating reference light, an image sensor that has pixels arrayed two-dimensionally that receive diffractive light generated by irradiating the reference light on a hologram recording medium, and a control unit that processes an electric signal from the image sensor and reproduces recording data. The control unit detects a predetermined area electric signal, detects a hologram electric signal, subtracts the predetermined area electric signal from the hologram electric signal to obtain a reproduced signal after noise reduction, and reproduces the recording data from the reproduced signal after noise reduction.
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