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:
Apr. 07, 2009
Filed:
Apr. 19, 2005
Yoshiya Nonaka, Saitama, JP;
Nobuo Tarui, Saitama, JP;
Akihiro Denda, Saitama, JP;
Yuji Sakamoto, Saitama, JP;
Noritaka Nii, Saitama, JP;
Yoshiya Nonaka, Saitama, JP;
Nobuo Tarui, Saitama, JP;
Akihiro Denda, Saitama, JP;
Yuji Sakamoto, Saitama, JP;
Noritaka Nii, Saitama, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
Data is stored in a non-volatile memory such as a flash memory. The non-volatile memory has two memory areas. When power of a device is turned on, data in the two memory areas are compared to determine which memory area includes old data, and the old data is erased. When the power is turned off, a control setting of the device used immediately before the power is turned off is stored as new data in the memory area from which the old data is erased. When the power is applied again, the new data is read, and the control setting is restored in the device.