Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Patent
1987-06-19
1989-09-19
Richardson, Robert L.
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
360 48, 360 721, 235454, 235470, 235494, G11B 576
Patent
active
048688061
ABSTRACT:
An information recording apparatus comprises: a recorder to record information into a recording medium such as an optical card having a plurality of information recording tracks; a generator to generate management information, i.e., directory to manage the information to be recorded into the card; and a controller for allowing a plurality of directories to be recorded into one of the information recording tracks, wherein when the controller additionally records a directory, it controls the recording position of the directory on the basis of the number concerned with the directories recorded in one track. The controller counts the number of directories or the number of gaps among the directories recorded in one track. When the count value is less than a predetermined number, the controller additionally records a new directory into the track. With this apparatus, the directories can be managed by a simple constitution without adding addresses to the recorded information, respectively.
REFERENCES:
patent: 4682318 (1987-07-01), Busby
Canon Kabushiki Kaisha
Richardson Robert L.
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