The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2011
Filed:
Apr. 25, 2008
Yoshinori Iida, Tokyo, JP;
Hiroto Honda, Yokohama, JP;
Akiko Hirao, Chiba, JP;
Kazuki Matsumoto, Kawasaki, JP;
Yoshinori Iida, Tokyo, JP;
Hiroto Honda, Yokohama, JP;
Akiko Hirao, Chiba, JP;
Kazuki Matsumoto, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
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 Pof the unit data areas in the two-dimensional digital image information and a pitch Pof the pixels in the pixel area defined as N=P/Psatisfies a relation/(+1)</(−1)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.