Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2011-03-15
2011-03-15
Haley, Joseph (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S120000, C369S124120
Reexamination Certificate
active
07907495
ABSTRACT:
A two-dimensional digital data acquisition element includes: a pixel area having a plurality of pixels arranged in a matrix form, each of the pixels having a photoelectric conversion element to convert the reproduced light from the optical information recording medium to an electric signal; selection circuits which select the pixel; a readout circuit which reads out an electric signal of a pixel selected by the selection circuits; and a 1-bit AD converter which converts an output of the readout circuit to 1-bit digital data. A pitch ratio N between a pitch P1of the unit data areas in the two-dimensional digital image information and a pitch P2of the pixels in the pixel area defined as N=P1/P2satisfies a relationin-line-formulae description="In-line Formulae" end="lead"?A·n2/(An+1)<N<A·n2/(An−1)in-line-formulae description="In-line Formulae" end="tail"?where A is the number of digital data in one-dimensional direction of one byte of the two-dimensional digital data and n is a natural number of at least 2.
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Hirao Akiko
Honda Hiroto
Iida Yoshinori
Matsumoto Kazuki
Haley Joseph
Iluyomade Ifedayo
Kabushiki Kaisha Toshiba
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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