发明名称 |
Recording apparatus, medium, method, and related computer program |
摘要 |
A recording apparatus is provided for an SD memory card that has a plurality of EPUBxxx.KEY files recorded thereon, each file having a plurality of Key&Rule Entry areas, and an SD_EPUB.MMG file being read from the recording medium prior to the writing of data. A bitmap in SD_EPUB.MMG shows for each EPUBxxx.KEY file whether the EPUBxxx.KEY file has at least one Key&Rule Entry area not in use, or whether all the Key&Rule Entry areas are in use. Based on the bitmap in the read SD_EPUB.MMG file, the recording apparatus opens EPUB#u.KEY having an unused Key&Rule Entry area and writes data into the unused Key&Rule Entry area in the file. If all the Key&Rule Entry areas in EPUB#u.KEY become in use as a result of the writing of the data, the recording apparatus updates the bitmap in SD_EPUB.MMG.
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申请公布号 |
US7269741(B2) |
申请公布日期 |
2007.09.11 |
申请号 |
US20020187896 |
申请日期 |
2002.07.03 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
MATSUI SHINICHI;NOGUCHI NAOHIKO;SATO MITSUHIRO;SHIMOJIMA TAKASHI;HASEGAWA KIICHI;NAKAMURA NORIO;FUJIMURA KAZUYA |
分类号 |
G06F12/14;G06F3/00;G06F12/00;G06F12/02;G06F17/30;G06F21/00;G06F21/62;G06F21/77;H04L9/32 |
主分类号 |
G06F12/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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