Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1990-02-15
1991-07-23
Levy, Stuart S.
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
369 34, 369 752, 369 772, G11B 1722, G11B 3302
Patent
active
050349368
ABSTRACT:
Compensating arrangements compensate for variations in load which a disk magazine places on a drive motor. In a first arrangement, a cam slot of a predetermined spiral configuration receives driving force from a drive motor and translates the same to: an end-range force from an initial portion of the cam slot which causes the selected tray to rotate at a first speed; an intermediate-range force from a middle portion which causes the selected tray to rotate at a second speed which is higher than the first speed; and, an end-range force from a final portion which causes the selected tray portion to rotate at a third speed which is lower than the second speed. In a second arrangement wherein a level of the disk magazine placeable in either a horizontal or vertical posture is adjusted with respect to the inlet of an information reproducing section, where there is an adjustment of a level position of the disk magazine in a same direction as gravitational force, a spring force from the spring attached at an oblique angle between the disk magazine and a frame portion of the disk player, offsets a portion of the load imposed on the drive motor by gravitational force on the disk magazine; and, when in an opposite horizontal or vertical posture, a spring force from the spring adds to a load imposed on the drive motor.
REFERENCES:
patent: 4561078 (1985-12-01), Nakayama
patent: 4638386 (1987-01-01), Takamatsu
patent: 4694449 (1987-09-01), Einhaus
patent: 4730291 (1988-03-01), Ikedo et al.
patent: 4734800 (1988-03-01), Suzuki
patent: 4878138 (1989-10-01), Ando et al.
Patent Abstracts of Japan 62-122050, P-768, Oct. 7, 1988, vol. 12, No. 377.
Patent Abstracts of Japan 62-295260, P-711, Jun. 2, 1988, vol. 12, No. 188.
Kajihara Kiyohito
Kimoto Toshiyuki
Kurosawa Atsushi
Onishi Sei
Levy Stuart S.
Pioneer Electronic Corporation
Wells Kenneth B.
LandOfFree
Multi-disk disk player having minimally-sized magazine drive mot does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-disk disk player having minimally-sized magazine drive mot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-disk disk player having minimally-sized magazine drive mot will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-438045