Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1980-10-20
1982-11-02
Faber, Alan
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
360 49, G11B 2732
Patent
active
043576389
ABSTRACT:
In a picture information filing system using an endless magnetic tape (43), which has a plurality of picture information recording tracks (48.sub.2) for a plurality of units of recording two-dimensional picture information (3) in predetermined blocks and an index information recording track (48.sub.1) for recording index information for the individual unit picture information, the index information is temporarily stored in a random access memory (13) as unit index information groups each consisting of a predetermined number of index information items, recording start index information consisting of a peculiar code and an address representing the position from which to record the next picture information is added to the last index information item in the last index information group, and the individual index information groups are recorded in predetermined blocks of the index information recording track, each index information group in each particular block.
REFERENCES:
patent: 3946959 (1974-03-01), Sawazaki
patent: 4167028 (1979-09-01), Tobey
Iida Kazuhiko
Yoshimaru Tomohisa
Faber Alan
Tokyo Shibaura Denki Kabushiki Kaisha
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