公开(公告)号：US5677900A

公开(公告)日：1997-10-14

申请号：US684871

申请日：1991-04-15

申请人： Syuzo Nishida ,  Yukihiko Haikawa ,  Takeshi Tanaka ,  Yukiharu Hosono ,  Hidenori Minoda ,  Yoshihiro Okamoto

发明人： Syuzo Nishida ,  Yukihiko Haikawa ,  Takeshi Tanaka ,  Yukiharu Hosono ,  Hidenori Minoda ,  Yoshihiro Okamoto

IPC分类号： G11B20/12 ,  G11B27/032 ,  G11B27/036 ,  G11B27/30 ,  G11B27/32 ,  G11B5/09 ,  G11B27/02

CPC分类号： G11B20/1209 ,  G11B27/032 ,  G11B27/036 ,  G11B27/3027 ,  G11B27/328 ,  G11B2220/216 ,  G11B2220/90

摘要： In a data recording apparatus which sequentially records recording data on a magnetic tape (T), when a plurality of continuously recorded data files F(i) are rewritten into new data files F(I) having smaller data quantities, recording areas which remain without being rewritten into the new data files F(I) are rewritten into unrecorded areas NR containing no data. Further, when rewriting into new data files G(I) which have larger data quantities, reserve areas SP are provided, in which data has not been previously recorded, and overflow data is written into the reserve areas SP at the time of rewriting. Furthermore, when rewriting into a new data file H(I) having a larger quantity, in a case where the data file H(i+1) following the rewritten data file H(i) is not needed, the recording areas of the unnecessary data file H(i+1) which are not rewritten, are rewritten into a new data file H(I+1) having no data, or are rewritten into the above mentioned reserve areas SP belonging to a newly rewritten data file A(I).

摘要翻译： 在将记录数据顺序地记录在磁带（T）上的数据记录装置中，当将多个连续记录的数据文件F（i）重写为具有较小数据量的新的数据文件F（I）时， 被重新写入新的数据文件F（I）被重写为不包含数据的未记录区域NR。 此外，当重新写入具有较大数据量的新数据文件G（I）时，提供预先存储数据的预留区域SP，并且在重写时将溢出数据写入保留区域SP。 此外，当重新写入具有较大数量的新的数据文件H（I）时，在不需要重写数据文件H（i）的数据文件H（i + 1）的情况下，不需要的记录区域 未重写的数据文件H（i + 1）被重写为不具有数据的新的数据文件H（I + 1），或被重写到属于新重写的数据文件A（I ）。