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:
Nov. 28, 2006
Filed:
Jun. 18, 2003
Toshio Miyazawa, Kanagawa, JP;
Hideaki Yamagata, Kanagawa, JP;
Hiroshi Shimura, Kanagawa, JP;
Michiyoshi Tachikawa, Kanagawa, JP;
Hiroaki Nagatsuka, Tokyo, JP;
Toshio Miyazawa, Kanagawa, JP;
Hideaki Yamagata, Kanagawa, JP;
Hiroshi Shimura, Kanagawa, JP;
Michiyoshi Tachikawa, Kanagawa, JP;
Hiroaki Nagatsuka, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
There are provided a data recording medium, a reading device for reading the data recording medium, a recording device for reading the data recording medium and recording data to other media, and methods thereof able to prevent forgery without comparing visible information and data stored in a built-in electronic circuit chip. The reading device is for reading a data recording medium including a sheet portion visibly printed with an image and a data storage unit recorded with control data. The reading device comprises a first reading unit adapted to optically read the image on the sheet portion, a second reading unit adapted to read the control data including read permission data indicating whether reading of the image is permitted, a determination unit adapted to determine whether reading of the image by the first reading unit is permitted based on the read permission data obtained by the second reading unit, and a controller adapted to control the first reading unit based on the determination by the determination unit.