Dynamic magnetic information storage or retrieval – Head – Core
Patent
1994-12-23
1996-03-26
Blankenship, Howard B.
Dynamic magnetic information storage or retrieval
Head
Core
360 1, 360 22, G03B 1724
Patent
active
055025277
ABSTRACT:
A camera capable of magnetic recording information on a first magnetic recording region and a second magnetic recording region provided on a film, comprises: a signal generating circuit which generates a first recording signal having a first frequency for information which is to be recorded on the first magnetic recording region, and which generates a second recording signal having a second frequency which is lower than the first frequency for information which is to be recorded on the second magnetic recording region; and a recording device which, in synchronization with the feeding of the film, records information using the first recording signal on the first magnetic recording region, and records information using the second recording signal on the second magnetic recording region.
REFERENCES:
patent: 4832275 (1989-05-01), Robertson
patent: 4864332 (1989-09-01), Harvey
patent: 5006873 (1991-04-01), Wash
patent: 5229810 (1993-07-01), Cloutier et al.
patent: 5376981 (1994-12-01), Itoh
Hibino Hideo
Kazami Kazuyuki
Yamazaki Youichi
Yanai Junichi
Yokonuma Norikazu
Blankenship Howard B.
Nikon Corporation
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