KR900701007A - Optical disk device that clock signal playback method - Google Patents

Optical disk device that clock signal playback method

Info

Publication number
KR900701007A
KR900701007A KR1019890702397A KR890702397A KR900701007A KR 900701007 A KR900701007 A KR 900701007A KR 1019890702397 A KR1019890702397 A KR 1019890702397A KR 890702397 A KR890702397 A KR 890702397A KR 900701007 A KR900701007 A KR 900701007A
Authority
KR
South Korea
Prior art keywords
signal
clock signal
recording pattern
level
period
Prior art date
Application number
KR1019890702397A
Other languages
Korean (ko)
Other versions
KR970008647B1 (en
Inventor
세이지 고사야시
Original Assignee
오오가 노리오
소니 가부시끼가이샤
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 오오가 노리오, 소니 가부시끼가이샤 filed Critical 오오가 노리오
Priority claimed from PCT/JP1989/000421 external-priority patent/WO1989010613A1/en
Publication of KR900701007A publication Critical patent/KR900701007A/en
Application granted granted Critical
Publication of KR970008647B1 publication Critical patent/KR970008647B1/en

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Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/14Digital recording or reproducing using self-clocking codes
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/14Digital recording or reproducing using self-clocking codes
    • G11B20/1403Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

내용 없음No content

Description

광 디스크 장치 그 클럭 신호 재생 방법Optical disk device that clock signal playback method

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

제1도는 본 발명이 적용되는 광디스크 장치의 전체 구성을 도시한 블록도1 is a block diagram showing the overall configuration of an optical disk device to which the present invention is applied.

제2A도 내지 2F도는 상기 광디스크 장치에서의 일반적인 서보 패턴의 검출 동작 원리를 설명하기 위한 파형도.2A to 2F are waveform diagrams for explaining the principle of operation of detecting a general servo pattern in the optical disk device.

Claims (7)

기록 트랙상에 소정의 주기로 기록된 기록 패턴을 검출하여 클럭 신호를 얻도록 한 광 디스크 장치에 있어서, 광 디스크로부터 얻어진 재생 신호에 의거하여 상기 클럭 신호의 주기에 대하여 소정의 기간만큼 긴 신호 레벨이 입상 또는 입하하는 검출 신호를 출력하는 파형 정형 수단과, 상기 검출신호를 상기 클럭 신호의 타이밍으로 취입하고 소정 기간의 상기 검출 신호의 신호 레벨을 상기 클럭 신호의 주기로 순차 표시하여 이루어진 복수의 기록 패턴 검출 신호를 얻어, 상기 복수의 기록 패턴 검출 신호의 일부를 제거하여 상기 기록 패턴을 검출하는 기록 패턴 검출 수단을 설치한 것을 특징으로 하는 광 디스크 장치.An optical disk apparatus configured to obtain a clock signal by detecting a recording pattern recorded at a predetermined period on a recording track, wherein the signal level longer by a predetermined period with respect to the cycle of the clock signal is based on a reproduction signal obtained from the optical disk. Waveform shaping means for outputting a winning or falling detection signal, and a plurality of recording patterns detected by taking the detection signal at the timing of the clock signal and sequentially displaying the signal level of the detection signal in a predetermined period in the period of the clock signal. And recording pattern detecting means for obtaining a signal and removing a part of the plurality of recording pattern detection signals to detect the recording pattern. 제1항에 있어서, 상기 클럭 신호의 주기 T에 대하여 상기 소정 기간을 0.5T로 설정한 것을 특징으로 하는 광디스크 장치.The optical disc apparatus according to claim 1, wherein the predetermined period is set to 0.5T with respect to the period T of the clock signal. 제1항에 있어서, 광디스크의 상기 기록 패턴은 제1의 신호 레벨을 부여하는 제1의 레벨 영역과 제2의 신호 레벨을 부여하는 제2의 레벨 영역으로 나타나고, 상기 제1의 레벨 영역이 상기 클럭 신호의 소정의 복수의 주기기간에 설정되어 있음과 함께, 상기 제2의 레벨 영역이 상기 제1의 레벨 영역 전후에 적어도 상기 클럭 신호의 1 주기 기간 설정되어 있는 것을 특징으로 하는 광디스크 장치.The recording pattern of claim 1, wherein the recording pattern of the optical disc is represented by a first level area giving a first signal level and a second level area giving a second signal level, and the first level area being the above-mentioned. And a second level region is set at least one cycle period of the clock signal before and after the first level region, while being set in a plurality of predetermined periods of a clock signal. 제3항에 있어서, 상기 기록 패턴 검출 수단은 상기 제1의 레벨 영역의 전후에 설정된 상기 제2의 레벨 영역에 대한 상기 기록 패턴 검출 신호를 제거하여 기록 패턴의 검출을 행하도록 한 것을 특징으로 하는 광디스크 장치.4. The recording pattern detecting means according to claim 3, wherein the recording pattern detecting means removes the recording pattern detecting signal for the second level region set before and after the first level region to detect the recording pattern. Optical disc device. 과 디스크의 기록 트랙상에 소정의 주기로 기록된 기록 패턴을 검출하여 클럭 신호를 얻는 광디스크 장치에서의 클럭 신호 재생 방법에 있어서, 광 디스크로부터 얻어진 재생 신호에 의거하여, 상기 클럭 신호의 주기에 대하여 소정의 기간 만큼 긴 신호 레벨이 입상 또는 입하하는 검출 신호를 형성하고, 상기 검출 신호를 상기 클럭 신호의 타이밍으로 취입하고, 소정 기간의 상기 검출 신호의 신호 레벨을 상기 클럭 신호의 주기로 순차 표시하여 이루어진 복수의 기록 패턴 검출 신호를 얻고, 상기 복수의 기록 패턴 검출 신호의 일부를 제거하여 상기 기록 패턴을 검출하는 공정을 구비한 것을 특징으로 하는 광디스크 장치에서의 클럭 신호 재생방법.A method of reproducing a clock signal in an optical disk apparatus in which a recording signal is recorded by detecting a recording pattern recorded on a recording track of a disc at predetermined intervals to obtain a clock signal. A plurality of signals formed by forming a detection signal that rises or falls as long as a period of time, takes the detection signal at the timing of the clock signal, and sequentially displays the signal level of the detection signal in a predetermined period in the period of the clock signal. Obtaining a recording pattern detection signal, and removing a part of the plurality of recording pattern detection signals to detect the recording pattern. 제5항에 있어서, 상기 클럭 신호의 주기 T에 대하여 상기 소정 기간을 0.5T로 설정한 것을 특징으로 하는 광디스크 장치에서의 클럭 신호 재생 방법.6. The clock signal reproducing method according to claim 5, wherein the predetermined period is set to 0.5T with respect to the period T of the clock signal. 제5항에 있어서, 제1의 신호 레벨을 부여하는 제1의 레벨 영역이 상기 클럭 신호의 소정의 복수의 주기기간에 설정되어 있음과 동시에 제2의 신호 레벨을 부여하는 제2의 레벨 영역이 상기 제1의 레벨 영역의 전후에 적어도 상기 클럭 신호의 1 주기 기간 설정된 광 디스크의 상기 기록 패턴에 대하여, 상기 제1의 레벨 영역의 전후에 설정된 상기 제2의 레벨 영역에 대한 기록 패턴 검출 신호를 제거하여, 기록 패턴의 검출을 행하는 것을 특징으로 하는 광디스크 장치에서의 클럭 신호 재생 방법.6. The method of claim 5, wherein the first level region that gives the first signal level is set in a plurality of predetermined periods of the clock signal and the second level region that gives the second signal level A recording pattern detection signal for the second level region set before and after the first level region with respect to the recording pattern of the optical disk set at least one cycle period of the clock signal before and after the first level region; And a recording pattern is detected to remove the clock signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890702397A 1988-04-20 1989-04-19 Optical disc device and reproduction of its clock signal KR970008647B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP63097953A JPH01269052A (en) 1988-04-20 1988-04-20 Separation of polyoxyalkylene compound
JP97959 1988-04-20
JP97953 1988-04-20
PCT/JP1989/000421 WO1989010613A1 (en) 1988-04-20 1989-04-19 Optical disc device and reproduction of its clock signal

Publications (2)

Publication Number Publication Date
KR900701007A true KR900701007A (en) 1990-08-17
KR970008647B1 KR970008647B1 (en) 1997-05-27

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Application Number Title Priority Date Filing Date
KR1019890702397A KR970008647B1 (en) 1988-04-20 1989-04-19 Optical disc device and reproduction of its clock signal

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JP (1) JPH01269052A (en)
KR (1) KR970008647B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4543917B2 (en) * 2003-12-26 2010-09-15 日油株式会社 Method for analyzing terminal activation rate of polyoxyalkylene derivative
EP1932953B1 (en) 2006-12-11 2012-11-14 Atotech Deutschland GmbH Galvanic process with analysis of the electrolytic bath through solid phase extraction
CN104707359A (en) * 2013-12-11 2015-06-17 北京思践通科技发展有限公司 Automatic solid phase extraction apparatus

Also Published As

Publication number Publication date
JPH01269052A (en) 1989-10-26
KR970008647B1 (en) 1997-05-27

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