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:
Jul. 28, 2009
Filed:
Apr. 21, 2005
Yoshiyuki Nakai, Nara, JP;
Koichi Sumida, Tenri, JP;
Takao Yamanouchi, Yamatokoriyama, JP;
Yohichi Shimazawa, Nara, JP;
Yoshiyuki Nakai, Nara, JP;
Koichi Sumida, Tenri, JP;
Takao Yamanouchi, Yamatokoriyama, JP;
Yohichi Shimazawa, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
The image processing apparatus (data processing apparatus) stores data in a storing unit (storing means), inputs and outputs the data to and from the storing unit via a storage control unit (input-output means) and processes the data outputted from the storing unit with a control unit (processing means). The storage control unit inputs and outputs image data to and from the storing unit by the DMA method through a path via a DMA control unit and inputs and outputs other data such as a control instruction to and from the storing unit by the PIO method through a path via a PIO control unit. Image data to be inputted and outputted to and from the storing unit by the DMA method is encrypted in an input operation and decrypted in an output operation by an encryption/decryption unit provided on the input-output path for DMA method.