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KR970017411A - Variable speed recording device of optical recording system - Google Patents

Variable speed recording device of optical recording system Download PDF

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Publication number
KR970017411A
KR970017411A KR1019950030722A KR19950030722A KR970017411A KR 970017411 A KR970017411 A KR 970017411A KR 1019950030722 A KR1019950030722 A KR 1019950030722A KR 19950030722 A KR19950030722 A KR 19950030722A KR 970017411 A KR970017411 A KR 970017411A
Authority
KR
South Korea
Prior art keywords
disk
output
recording
data
signal
Prior art date
Application number
KR1019950030722A
Other languages
Korean (ko)
Other versions
KR0162403B1 (en
Inventor
김광
Original Assignee
구자홍
Lg 전자 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 구자홍, Lg 전자 주식회사 filed Critical 구자홍
Priority to KR1019950030722A priority Critical patent/KR0162403B1/en
Publication of KR970017411A publication Critical patent/KR970017411A/en
Application granted granted Critical
Publication of KR0162403B1 publication Critical patent/KR0162403B1/en

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Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127Lasers; Multiple laser arrays
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, 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
    • G11B19/02Control of operating function, e.g. switching from recording to reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126Circuits, methods or arrangements for laser control or stabilisation

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

본 발명은 광기록 장치에 관한 것으로, 특히 디스크에 데이타를 기록할 시 디스크의 회전변동에 따른 데이타 기록 에러를 방지할 수 있는 광기록 시스템의 가변속 기록장치에 관한 것으로, 종래에는 데이타의 기록시 편심 등에 의하여 디스크의 회전속도가 변동하였을 경우에 회전속도의 변동이 얻어질때까지 기록 대기상태에 놓이게 되며, 스핀들 회전수를 변화시키지 못하게 될 경우에는 그대로 기록하게 됨으로써 기록 데이타의 에러가 발생하게 되고, 이러한 에러를 방지하기 위해서는 토크가 큰 모터를 사용하게 되면 모터의 크기가 증대되어 부피가 그만큼 증가되는 문제점이 있었으나, 본 발명에서는 디스크의 회전속도의 변동을 검출하여 디스크의 회전속도가 느려지면 레이저의 주사기간을 늘리고, 반면에 회전속도가 빨라지면 레이저의 주사기간을 단축시켜 정상적인 데이타를 기록하므로써 광기록장치의 성능과 신뢰성을 높힘과 동시에 고속의 기록 및 토크가 큰 스핀들 모터를 사용하지 않아도 되므로 장치의 소형화를 이룰수 있는 효과가 있게 된다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical recording apparatus, and more particularly, to a variable speed recording apparatus of an optical recording system capable of preventing a data recording error caused by a rotational change of a disk when data is recorded on a disk. When the rotational speed of the disk changes due to the rotation of the disk, the recording medium is placed in the recording standby state until the variation of the rotational speed is obtained. When the rotational speed of the disk cannot be changed, the data is recorded as it is, and an error of the recording data occurs. In order to prevent an error, when the motor having a large torque is used, the size of the motor is increased and the volume is increased. However, in the present invention, when the rotation speed of the disk is slowed down by detecting a change in the rotation speed of the disk, laser scanning is performed. Increasing the duration, while increasing the speed of the laser scan The speed was not required at the same time as nophim the performance and reliability of an optical recording apparatus using a large spindle motor and the torque of the high-speed recording By recording the normal data between, so it is possible that the effect and achieve miniaturization of the device.

Description

광기록 시스템의 가변속 기록장치Variable speed recording device of optical recording system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제6도는 본 발명 광기록 시스템의 가변속 기록장치를 나타낸 블럭도.6 is a block diagram showing a variable speed recording apparatus of the optical recording system of the present invention.

Claims (2)

데이타를 저장하는 디스크와, 상기 디스크를 회전시키는 스핀들 모터와, 상기 디스크에 데이타를 재생/기록하는 광픽업부와, 상기 광픽업부에 의해 읽어들여진 데이타를 증폭하는 알에프증폭부와, 상기 알에프증폭부의 출력을 파형정형하는 아날로그 신호처리부와, 상기 디스크에 기록할 기록 데이타를 일시저장하는 메모리와, 상기 아날로그 신호처리부의 출력신호 및 피엘엘의 출력신호를 인가받아 상기 디스크의 회전속도에 상응하는 클럭을 발생하는 클럭 발생부와, 상기 메모리에 저장된 기록 데이타를 상기 클럭 발생부의 클럭과 동기시켜 엔코딩하여 출력하는 엔코더와, 상기 엔코더의 출력을 피엘엘 또는 버퍼메모리로의 인가여부를 결정하는 절환부와, 상기 절환부로부터 출력이 있으면 이 신호를 락킹시켜 상기 클럭발생부로 출력하는 상기 퍼엘엘과, 상기 엔코더의 출력이 상기 절환부를 통해 입력되면 이를 일시 저장하는 버퍼메모리와, 상기 버퍼메모리의 출력을 입력받아 상기 광픽업부에 공급할 전류의 크기와 주기로 변환하는 신호변환부로 구성하여 된 것을 특징으로 하는 광기록 시스템의 가변속 기록장치.A disk for storing data, a spindle motor for rotating the disk, an optical pickup section for reproducing / recording data on the disk, an RF amplifier section for amplifying the data read by the optical pickup section, and the RF amplifier section. An analog signal processor for waveform shaping a negative output, a memory for temporarily storing write data to be recorded on the disc, an output signal of the analog signal processor, and an output signal of PLEL, and a clock corresponding to the rotational speed of the disc A clock generator for generating a signal; an encoder for encoding and outputting the recording data stored in the memory in synchronization with a clock of the clock generator; a switching unit for determining whether the output of the encoder is applied to the PEL or buffer memory; And, if there is an output from the switch, locking the signal and outputting the signal to the clock generator. A PUEL, a buffer memory for temporarily storing the output of the encoder when the output is input through the switching unit, and a signal converter for receiving the output of the buffer memory and converting the current into a magnitude and a period to be supplied to the optical pickup unit. A variable speed recording apparatus of an optical recording system, characterized in that. 제1항에 있어서, 광픽업부는 디스크에 기 기록되어 있는 워블신호를 읽어 들이는 것을 특징으로 하는 광기록 시스템의 가변속 기록장치.The variable speed recording apparatus of claim 1, wherein the optical pickup unit reads a wobble signal previously recorded on the disk. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950030722A 1995-09-19 1995-09-19 Recording device of changeable speed for optical recording system KR0162403B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950030722A KR0162403B1 (en) 1995-09-19 1995-09-19 Recording device of changeable speed for optical recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950030722A KR0162403B1 (en) 1995-09-19 1995-09-19 Recording device of changeable speed for optical recording system

Publications (2)

Publication Number Publication Date
KR970017411A true KR970017411A (en) 1997-04-30
KR0162403B1 KR0162403B1 (en) 1998-12-15

Family

ID=19427228

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950030722A KR0162403B1 (en) 1995-09-19 1995-09-19 Recording device of changeable speed for optical recording system

Country Status (1)

Country Link
KR (1) KR0162403B1 (en)

Also Published As

Publication number Publication date
KR0162403B1 (en) 1998-12-15

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