公开(公告)号：EP0452854B1

公开(公告)日：1997-03-05

申请号：EP91105976.4

申请日：1991-04-15

申请人： SHARP KABUSHIKI KAISHA

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

IPC分类号： G11B20/12 ,  G11B27/032

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

公开(公告)号：EP0452854A2

公开(公告)日：1991-10-23

申请号：EP91105976.4

申请日：1991-04-15

申请人： SHARP KABUSHIKI KAISHA

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

IPC分类号： G11B20/12 ,  G11B27/032

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 data 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））重新写入具有较小数据量的新的数据文件（F（I））时，记录 保留而不被重新写入新的数据文件（F（I））的区域被重写为不包含数据的未记录区域（NR）。 此外，当重写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），并且溢出数据被写入保留区域（SP）中 重写的时间。 此外，在不需要重写数据文件（H（i））的数据文件（H（i + 1））的情况下，当不需要重写具有较大数据量的新数据文件（H（I））时 ，不重写的不必要的数据文件（H（i + 1））的记录区域被重新写入不具有数据的新的数据文件（H（I + 1）），或被重写到上述的保留区域 （SP）属于新重写的数据文件（A（I））。

公开(公告)号：EP0452854A3

公开(公告)日：1991-12-27

申请号：EP91105976.4

申请日：1991-04-15

申请人： SHARP KABUSHIKI KAISHA

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

IPC分类号： G11B20/12 ,  G11B27/032

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 data 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)).