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 Title: |
US6009063:
Universal portable minidisk drive system
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Nguyen, Nam D.; San Jose, CA 95129
Tarng, Min Ming; San Jose, CA 95129
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| Assignee: |
None
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| Published / Filed: |
1999-12-28
/ 1997-06-09
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| Application Number: |
US1997000871814
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| IPC Code: |
Advanced:
G11B 5/55;
G11B 5/56;
G11B 5/596;
G11B 7/085;
G11B 11/105;
G11B 19/12;
G11B 21/02;
G11B 7/14;
G11B 25/04;
G11B 33/08;
Core:
G11B 11/00;
more...
IPC-7:
G11B 5/56;
G11B 7/00;
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| ECLA Code: |
G11B5/55D1D2; G11B5/56; G11B5/596F; G11B5/596F2; G11B7/085A; G11B7/085H2; G11B11/105D; G11B11/105G1B; G11B19/12; G11B21/02A1;
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| U.S. Class: |
Current:
369/013.34;
360/077.03;
369/044.14;
G9B/005.192;
G9B/005.201;
G9B/005.222;
G9B/005.223;
G9B/007.043;
G9B/007.055;
G9B/011.024;
G9B/011.034;
G9B/019.017;
G9B/021.005;
Original:
369/109;
369/044.14;
360/077.03;
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| Field of Search: |
369/109,44.14,44.19,215,222,220,244
360/77.02,77.03,78.11,15,72.1,137,97.01
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| Priority Number: |
| 1997-06-09 |
US1997000871814 |
| 1995-02-13 |
US1995000387230 |
| 1992-09-21 |
US1992000947800 |
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| Abstract: |
A universal portable minidisk drive system adopts the (1) universal head (2) laser pin (3) timing/coordinate clock track to have the long-time, continue-playing for all the different disk media such as optic disk, magnetic disk or magnetopic disk. The universal head enables the universal disk to read/write all the different disk that the portable computer only needs to have one kind of disk drive. The laser pin pushes the track density to the extreme limit that the minidisk can store a large amount data. The timing/coordinate clock track introduces the (track, sector) coordinate system to the disk that the access/recover time is reduced. The disk drive can play continuously in the vibrant environment.
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| Primary / Asst. Examiners: |
Neyzari, Ali;
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| Maintenance Status: |
E1 Expired Check current status
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| INPADOC Legal Status: |
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| Parent Case: |
This application is a continuation-in-part of Ser. No. 08/387,230 filed on Feb. 13, 1995, now abandoned which is a continue-in-part of Ser. No. 07/947,800, filed on Sep. 21, 1992, now abandoned. This invention is related generally to the universal disk drive system, and more specifically is to the unified approach of the portal universal disk drive and servo track writer mechanism for magnetic disk, optical disk and the magnetoptic disk that one disk drive can record and read/write as CD player, magnetic disk drive, optical disk drive and magnetoptic disk drive.
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| Family: |
None
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First Claim:
Show all 18 claims |
We claim:
1. A portable disk drive system comprises a dual-arm means, axial central means, direct-overhead means, optical pin means, master track detect means, master loop control means, slave loop control means and a slave disk means,
- said dual-arm means further comprising a master arm means and a slave arm means;
- said slave arm means further comprising a read and write head means and a compact radiation detect means;
- said read and write head reading and writing data on said slave disk;
- said optical pin means being mounted on said master arm;
- said central axial means aligning the axle of movement to be coincidence;
- said direct-overhead means aligning said optical pin means direct above said radiation detector means of said slave arm means;
- said master arm and slave arm adopting a same pattern of movement that said master arm always being able to tracing said slave arm to have direct-overhead projection for said optical pin means;
- said master arm means being stiff to support said optical pin means;
- said slave means detecting radiation to track fast wobbling movement of said slave disk means;
- said radiation detector means being able to trace movement of said optical pin dynamically without track jumping error and it being so light that it being able support by said slave arm;
- said master track detecting means guiding said master arm to predetermined track position;
- said master loop control means guiding said master arm to follow output of said master track detecting means;
- said axial central means first aligning said axle of said master arm with said axle of said slave arm; then said master arm moving to have said radiation detector means detecting radiation; then said direct-overhead means moving to have said optical pin being direct above said radiation detect means; as said radiation detect means sensing said optical pin being direct above said read and write head, said radiation detect means notifying said master arm starting to move to new track position; said radiation detect means notifying said slave arm to trace movement of said arm dynamically to reduce radiation signal to be signal level of direct overhead radiation signal level; said slave arm tracing said optical pin to move; said master arm carry said optical pin to move that said slave arm tracing said master arm to move; a track position of said slave arm being specified at a track position by said master arm.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 4 U.S. patent(s) that reference this one
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