Invention Grant
US08477440B2 Tape recorder and tape recording that increases empty tape area without loss of necessary data
失效
磁带录音机和磁带录音，增加空磁带区，而不会丢失必要的数据
- Patent Title: Tape recorder and tape recording that increases empty tape area without loss of necessary data
- Patent Title (中): 磁带录音机和磁带录音，增加空磁带区，而不会丢失必要的数据
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Application No.: US12917943Application Date: 2010-11-02
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Publication No.: US08477440B2Publication Date: 2013-07-02
- Inventor: Hiroshi Itagaki , Setsuko Masuda , Yutaka Oishi , Terue Watanabe
- Applicant: Hiroshi Itagaki , Setsuko Masuda , Yutaka Oishi , Terue Watanabe
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Biggers & Ohanian, LLP
- Agent Brandon C. Kennedy; Cynthia G. Seal
- Priority: JP2009-268918 20091126
- Main IPC: G11B5/86
- IPC: G11B5/86 ; G11B19/02 ; G11B15/08
Abstract:
Provided is a tape recorder that has a tape including at least one partition and that controls access to the tape. The tape recorder includes: means for identifying a position of data on the tape; means for sequentially reading necessary data areas in the data; means for sequentially copying the necessary data areas to the beginning of an empty area on the tape; means for creating a continuous front empty area formed of unnecessary data areas and copy source areas of the necessary data areas on the tape; and means for moving a beginning of the partition (BOP) to a position immediately after the front empty area and for updating the position information on the beginning of the partition.
Public/Granted literature
- US20110122522A1 Tape Recorder And Tape Recording That Increases Empty Tape Area Without Loss of Necessary Data Public/Granted day:2011-05-26
Information query
IPC分类:
