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. 24, 2007
Filed:
Mar. 28, 2006
Daisaburo Takashima, Yokohama, JP;
Shuso Fujii, Kawasaki, JP;
Takuya Futatsuyama, Yokohama, JP;
Takaya Suda, Kamakura, JP;
Masaki Momodomi, Yokohama, JP;
Daisaburo Takashima, Yokohama, JP;
Shuso Fujii, Kawasaki, JP;
Takuya Futatsuyama, Yokohama, JP;
Takaya Suda, Kamakura, JP;
Masaki Momodomi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A memory system includes a ferroelectric memory, flash EEPROM, control circuit, and interface circuit. The control circuit is configured to control the ferroelectric memory and flash EEPROM. The interface circuit is configured to communicate externally. Data is programmed in the flash EEPROM by a write unit which is smaller than a block as an erase unit and larger than a page as a program unit. The ferroelectric memory stores a logical address-physical address conversion table using the write unit.