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. 20, 1999
Filed:
Mar. 28, 1997
Yoshihiko Ninomiya, Daito, JP;
Toshihiro Waguri, Kobe, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An erasable programmable ROM has a storage area which is divided into blocks having a predetermined block length, each assigned a block address and provided with information. With reference to block addresses and information, the CPU specifies the blocks to be used for storing and writes a file to the ROM in block units. The CPU writes the file first to a blank block having a writing start mark written the blank block when the blank block is present or to an optional blank block if otherwise and then successively to other blank blocks. On completion of writing, the CPU searches for a blank block downstream from the last block used for writing and writes a writing start mark to the blank block found.