KR910013103A - Linear Velocity Servo Control Circuit for Recording Compact Discs - Google Patents

Linear Velocity Servo Control Circuit for Recording Compact Discs Download PDF

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Publication number
KR910013103A
KR910013103A KR1019890018382A KR890018382A KR910013103A KR 910013103 A KR910013103 A KR 910013103A KR 1019890018382 A KR1019890018382 A KR 1019890018382A KR 890018382 A KR890018382 A KR 890018382A KR 910013103 A KR910013103 A KR 910013103A
Authority
KR
South Korea
Prior art keywords
control circuit
linear velocity
servo control
compact discs
error signal
Prior art date
Application number
KR1019890018382A
Other languages
Korean (ko)
Other versions
KR920009198B1 (en
Inventor
정정주
Original Assignee
강진구
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019890018382A priority Critical patent/KR920009198B1/en
Publication of KR910013103A publication Critical patent/KR910013103A/en
Application granted granted Critical
Publication of KR920009198B1 publication Critical patent/KR920009198B1/en

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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
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/28—Speed controlling, regulating, or indicating
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
    • G05D13/62—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2545—CDs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Rotational Drive Of Disk (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

내용 없음.No content.

Description

콤팩트 디스크의 기록시 선속도 서보 제어회로Linear Velocity Servo Control Circuit for Recording Compact Discs

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본 발명에 따른 회로도.3 is a circuit diagram according to the present invention.

제4도는 제3도중 각부의 동작 파형도.4 is an operational waveform diagram of each part of FIG.

제5도는 제3도중 마이컴(40)의 선속도 제어신호 발생 흐름도.5 is a flowchart illustrating a generation of a linear speed control signal of the microcomputer 40 in FIG.

Claims (1)

제2로우패스필터(500)와, 모터드라이부(600)와, 모터(700)를 구비한 기록가능한 콤팩트 디스크 플레이어의 선속도 서보 제어회로에 있어서, 픽업의 렌즈가 콤팩트 디스크의 트랙을 추적하는 과정에서 발생되는 트랙킹 에러신호를 발생하는 서보부(100)와, 상기 서보부(100)로부터 출력된 트랙킹 에러신호의 좌, 우 픽업을 구동시키기 위한 트랙킹코일(L1)과, 상기 트랙킹코일(L1)에 의해 픽업된 트랙킹 에러신호를 입력하여 필터링하여 출력하는 제1로우패스필터(200)와, 상기 로우패스필터(200)에서 필터링된 신호를 입력하여 구형퍼스로 변환 출력하기 위한 비교기(300)와, 상기 비교기(300)에서 구형펄스로 변환된 신호를 입력하여 기준주파수 주기와 비교하여 선속도를 제어하기 위한 모터구동펄스를 발생하는 마이컴(400)으로 구성됨을 특징으로 하는 회로.In a linear speed servo control circuit of a recordable compact disc player having a second low pass filter 500, a motor drive unit 600, and a motor 700, a pickup lens tracks a track of the compact disc. Servo unit 100 for generating a tracking error signal generated in the process, a tracking coil (L1) for driving the left and right pickup of the tracking error signal output from the servo unit 100, and the tracking coil (L1) A first low pass filter 200 for inputting and filtering the tracking error signal picked up by the second signal; And a microcomputer (400) generating a motor driving pulse for controlling the linear velocity by inputting the signal converted into a rectangular pulse from the comparator (300). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890018382A 1989-12-12 1989-12-12 Linear velocity servo control circuit in recording a compact disk KR920009198B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890018382A KR920009198B1 (en) 1989-12-12 1989-12-12 Linear velocity servo control circuit in recording a compact disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890018382A KR920009198B1 (en) 1989-12-12 1989-12-12 Linear velocity servo control circuit in recording a compact disk

Publications (2)

Publication Number Publication Date
KR910013103A true KR910013103A (en) 1991-08-08
KR920009198B1 KR920009198B1 (en) 1992-10-14

Family

ID=19292797

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890018382A KR920009198B1 (en) 1989-12-12 1989-12-12 Linear velocity servo control circuit in recording a compact disk

Country Status (1)

Country Link
KR (1) KR920009198B1 (en)

Also Published As

Publication number Publication date
KR920009198B1 (en) 1992-10-14

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