KR960002268A - Disc determination method and device - Google Patents
Disc determination method and device Download PDFInfo
- Publication number
- KR960002268A KR960002268A KR1019940013006A KR19940013006A KR960002268A KR 960002268 A KR960002268 A KR 960002268A KR 1019940013006 A KR1019940013006 A KR 1019940013006A KR 19940013006 A KR19940013006 A KR 19940013006A KR 960002268 A KR960002268 A KR 960002268A
- Authority
- KR
- South Korea
- Prior art keywords
- disc
- time
- disk
- diameter
- counted
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
- G11B19/125—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of carrier data format
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
디스크가 규정의 회전속도에 이르게 되기까지의 시간을 검사하여 장착된 디스크의 종류를 판별하는 방법 및 장치가 개시된다.Disclosed are a method and apparatus for determining the type of mounted disc by checking the time until the disc reaches a prescribed rotational speed.
본 발명에 따른 디스크 판별방법은 장착된 디스크를 회전시키며 회전서보를 수행하는 과정; 상기 회전서보과정에서 디스크가 회전하기 시작하여 규정속도에 도달할 때까지의 소요시간을 계수하는 과정; 및 상기 계수된 시간을 제1직경의 디스크가 규정의 정상속도에 이르는 한계시간과 비교하고, 계수된 시간이 한계시간보다 작으면 제1직경의 디스크가 장착된 것으로 판별하고, 계수된 시간이 임계시간보다 크면 제2직경의 디스크가 장착된 것으로 판별하는 과정을 포함함을 특징으로 한다.Disc discrimination method according to the invention comprises the steps of performing a rotating servo while rotating the mounted disk; Counting the time required for the disk to begin to rotate and reach a specified speed in the rotation servo process; And comparing the counted time with a threshold time at which the disk of the first diameter reaches the normal speed, and if the counted time is less than the threshold time, determine that the disk of the first diameter is loaded, and the counted time is critical. If greater than time, characterized in that it comprises the step of determining that the disk of the second diameter is mounted.
본 발명에 따른 디스크 판별방법은 회전서보와 더불어 디스크 판별을 동시에 수행하여 디스크판별만을 위한 시간낭비가 없어짐으로써 디스크가 장착된 후 재생될 때까지의 대기시간을 단축시킬 수 있다는 효과가 있다.The disc discrimination method according to the present invention has an effect of reducing the waiting time until the disc is played after the disc is mounted by eliminating the time for disc discrimination by simultaneously performing disc discrimination together with the rotating servo.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제3도는 본 발명에 따른 디스크 판별방법의 일 실시예를 보이는 흐름도이다.3 is a flowchart showing an embodiment of a disc discrimination method according to the present invention.
제4도는 본 발명에 따른 디스크 판별장치의 일 실시예를 보이는 블럭도이다.4 is a block diagram showing an embodiment of a disc discrimination apparatus according to the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940013006A KR0155761B1 (en) | 1994-06-09 | 1994-06-09 | Disk discriminator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940013006A KR0155761B1 (en) | 1994-06-09 | 1994-06-09 | Disk discriminator |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960002268A true KR960002268A (en) | 1996-01-26 |
KR0155761B1 KR0155761B1 (en) | 1998-12-15 |
Family
ID=19385009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940013006A KR0155761B1 (en) | 1994-06-09 | 1994-06-09 | Disk discriminator |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0155761B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100520599B1 (en) * | 1997-05-30 | 2006-01-27 | 마츠시타 덴끼 산교 가부시키가이샤 | An optical disk apparatus |
KR20230015040A (en) * | 2021-07-22 | 2023-01-31 | 주식회사 이산 | Device for the Risk Management of Wastewater Treatment Plant and Method for the Risk Management of Wastewater Treatment Plant |
-
1994
- 1994-06-09 KR KR1019940013006A patent/KR0155761B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100520599B1 (en) * | 1997-05-30 | 2006-01-27 | 마츠시타 덴끼 산교 가부시키가이샤 | An optical disk apparatus |
KR20230015040A (en) * | 2021-07-22 | 2023-01-31 | 주식회사 이산 | Device for the Risk Management of Wastewater Treatment Plant and Method for the Risk Management of Wastewater Treatment Plant |
Also Published As
Publication number | Publication date |
---|---|
KR0155761B1 (en) | 1998-12-15 |
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