 |
|
|
|
|
|
 Title: |
US6009057:
Disc drive equipped with identification indication reader provided in an optical disc
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Furukawa, Ken'ichi; Tokyo, Japan
Igarashi, Takayuki; Yamagata, Japan
|
| Assignee: |
Mitsumi Electric Co. Ltd. Japan
other patents from MITSUMI ELECTRIC CO., LTD. (379800) (approx. 471)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1999-12-28
/ 1997-09-25
|
| Application Number: |
US1997000936988
|
| IPC Code: |
Advanced:
G11B 7/00;
G11B 7/004;
G11B 7/005;
G11B 19/12;
G11B 23/40;
Core:
G11B 23/38;
more...
IPC-7:
G11B 7/00;
|
| ECLA Code: |
G11B23/40;
|
| U.S. Class: |
Current:
369/052.1;
235/462.25;
369/053.2;
720/718;
G9B/023.093;
Original:
369/053;
369/075.1;
369/054;
235/462;
|
| Field of Search: |
369/052,54,58,53,75.1,75.2,195,199
235/454,462
|
| Priority Number: |
|
| Abstract: |
A disc drive is provided with an optical pick-up for reading data recorded in a program area of an optical disc; and a photo-interrupter for optically reading out bar information of a bar code which is arranged in an arc shape within at least a part of an annular bar code area provided on the optical disc between the program area and a clamping area of the optical disk so as to be readable from either side of the top and underside surfaces of the optical disk, wherein the photo-interrupter is located on the opposite side of the optical disc relative to the optical pick-up when the optical disc is loaded in the disc drive to read the information of the bar code from that position. Preferably, the photo-interrupter is provided on a clamper support which is provided for supporting a disc clamper for holding the optical disc between the disc clamper and a turntable for rotating the optical disc. This arrangement makes it easy to provide the photo-interrupter for reading the bar code.
|
| Attorney, Agent or Firm: |
Mattson, Brian M.Patents & TMS, P.C. ;
|
| Primary / Asst. Examiners: |
Tran, Thang V.;
|
| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
|
| Designated Country: |
DE FR GB IT NL
|
| Family: |
Show 4 known family members
|
First Claim:
Show all 16 claims |
What is claimed is:
1. A disc drive comprising:
- an optical pick-up for reading data recorded in a program area of an optical disc;
- a turntable;
- a disc clamber for holding the optical disc between the disc clamper and the turntable;
- a support means for supporting the disc clamper, said support means being provided on the opposite side of the optical disc relative to the optical pick-up when the optical disc is loaded in the disc drive; and
- identification indication reading means for reading out information of identification indication provided on at least a part of an annular identification indication area provided on the optical disc between a clamping area of the optical disc and the program area thereof, said identification indication reading means being provided on the support means so as to be arranged at a position corresponding to the identification indication area of the optical disc when the optical disc is loaded in the disc drive.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 6 U.S. patent(s) that reference this one
|
