Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
1991-01-16
1992-07-14
Psitos, Aristotelis
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the head
360 57, 360 7813, 360109, G11B 5596
Patent
active
051308681
ABSTRACT:
An apparatus of the invention is capable of shifting a transducer, such as a head for erasing reproducing and recording information on a track formed on a recording medium, with fine positioning accuracy and high access speed. Further, the apparatus is capable of entirely erasing information to be erased on the medium by shifting the transducer with a desired degree while the transducer is excited for erasing operation. In the apparatus, a motion converting means, such as a disc cam or a helically grooved cylindrical cam, is employed for converting a primary rotating motion to a secondary stepwise motion so as to shift the transducer, presenting substantial dead band characteristics for the shifting motion. Further, a control means is employed for shifting the transducer over an area covering an information recorded track and the portions adjacent thereto to execute the erasing operation for an extended area along the track to be erased.
REFERENCES:
patent: 3882541 (1975-05-01), Ghose et al.
patent: 4131923 (1978-12-01), Wachs et al.
patent: 4290088 (1981-09-01), Beecroft
patent: 4315289 (1982-02-01), Holecek et al.
patent: 4383283 (1983-05-01), Machut
patent: 4396965 (1983-08-01), DeMoss
patent: 4414592 (1983-11-01), Losee et al.
patent: 4455582 (1984-06-01), Yanagida et al.
patent: 4651247 (1987-03-01), Fuke
patent: 4689700 (1987-08-01), Miyake et al.
patent: 4725902 (1988-02-01), Oda et al.
patent: 4811133 (1989-03-01), Nakada et al.
patent: 4849832 (1989-07-01), Yamagata et al.
patent: 5012362 (1991-04-01), Ida
Nikkei Electronics, Jul. 2, 1987, pp. 80-85; published by Nikkei McGraw-Hill Title: Recording 25 StillPictures on a Floppy Disc of 47 mm in Diameter-Standard of Magnetic Disks for Electronic Still Cameras.
U.S. patent application Ser. No. 083,678; Toizumi, Y. and Kawase, D.; filed Aug. 7, 1987.
U.S. patent application Ser. No. 077,594; M. Ida; filed Jul. 24, 1987.
Olympus Optical Co,. Ltd.
Psitos Aristotelis
Robertson David L.
LandOfFree
Apparatus and method for positioning a transducer for recording, does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for positioning a transducer for recording,, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for positioning a transducer for recording, will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-340319