KR100197619B1 - 가변속 재생이 가능한 광디스크시스템의 등화기특성 보상장치 - Google Patents
가변속 재생이 가능한 광디스크시스템의 등화기특성 보상장치 Download PDFInfo
- Publication number
- KR100197619B1 KR100197619B1 KR1019960044008A KR19960044008A KR100197619B1 KR 100197619 B1 KR100197619 B1 KR 100197619B1 KR 1019960044008 A KR1019960044008 A KR 1019960044008A KR 19960044008 A KR19960044008 A KR 19960044008A KR 100197619 B1 KR100197619 B1 KR 100197619B1
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- equalizer
- output
- unit
- automatic adjustment
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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
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- 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
- G11B20/10481—Improvement or modification of read or write signals optimisation methods
-
- 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
-
- 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
- G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/0805—Details of the phase-locked loop the loop being adapted to provide an additional control signal for use outside the loop
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims (6)
- 와이드PLL을 사용하는 광디스크시스템에 있어서,소정의 광디스크로부터 재생한 고주파신호를 등화하여 상기 와이드PLL로 출력하는 등화기;상기 와이드PLL로부터 출력되는 클럭주파수에 근거하여 상기 등화기의 특성을 보상하기 위한 전압을 발생하는 보상부; 및상기 보상부의 온/오프를 제어하는 제어부를 포함하는 가변속 재생이 가능한 광디스크시스템의 등화기 특성 보상장치.
- 제 1항에 있어서, 상기 제어부의 제어에 따라 상기 와이드PLL의 발진주파수를 제어하는 자동조정부를 더 포함하는 것을 특징으로 하는 가변속 재생이 가능한 광디스크시스템의 등화기 특성 보상장치.
- 제 1항에 있어서, 상기 보상부는 상기 제어부로부터 리셋신호를 입력받을 때 기설정된 기준전압을 상기 등화기로 공급하는 것을 특징으로 하는 광디스크시스템의 등화기 특성 보상장치.
- 제 3항에 있어서, 상기 보상부는 상기 클럭주파수를 전압값으로 변환하는 주파수-전압변환기; 상기 주파수-전압변환기의 출력전압을 저역통과필터링하는 저역통과필터; 및 상기 기설정된 전압과 상기 저역통과필터의 출력중 하나를 상기 제어부의 제어에 따라 상기 등화기로 공급하는 스위치로 구성되는 것을 특징으로 하는 광디스크시스템의 등화기 특성 보상장치.
- 와이드PLL을 사용하는 광디스크시스템에 있어서,소정의 광디스크로부터 재생한 고주파신호를 등화하여 상기 와이드PLL로 출력하는 등화기;상기 와이드PLL로부터 출력되는 클럭주파수에 근거하여 자동조정전압을 발생하며, 상기 자동조정전압을 상기 와이드PLL에 포함되는 전압제어발진기의 입력전압에 가산되도록 공급하는 자동조정부;상기 전압제어발진기의 입력전압에 근거하여 상기 등화기의 특성을 보상하기 위한 전압을 발생하는 보상부; 및상기 보상부의 온/오프 및 상기 자동조정부의 자동조정전압 발생을 제어하는 제어부를 포함하는 가변속 재생이 가능한 광디스크시스템의 등화기 특성 보상장치.
- 제 5항에 있어서, 상기 보상부는 입력되는 전압을 저역통과필터링하는 저역통과필터; 상기 저역통과필터의 출력을 소정시간동안 유지시켜 출력하는 홀드부; 상기 저역통과필터의 출력으로부터 상기 홀드부의 출력을 감산하는 감산기; 및 상기 제어부의 제어에 따라 상기 감산기의 출력과 기설정된 전압 중 하나를 상기 등화기로 공급하는 스위치로 구성되는 것을 특징으로 하는 가변속 재생이 가능한 광디스크시스템의 등화기 특성 보상장치.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960044008A KR100197619B1 (ko) | 1996-10-04 | 1996-10-04 | 가변속 재생이 가능한 광디스크시스템의 등화기특성 보상장치 |
GB9720933A GB2318207B (en) | 1996-10-04 | 1997-10-03 | Optical disc reproduction apparatus capable of correcting a characteristic of an equalizer |
MYPI97004642A MY118089A (en) | 1996-10-04 | 1997-10-03 | Optical disc reproduction apparatus capable of correcting a characteristic of an equalizer |
CN97121361A CN1103998C (zh) | 1996-10-04 | 1997-10-04 | 能够校正均衡器特性的光盘再现装置 |
US08/944,563 US6163516A (en) | 1996-10-04 | 1997-10-06 | Optical disc reproduction apparatus and method capable of correcting a characteristic of an equalizer |
JP9273170A JP2991686B2 (ja) | 1996-10-04 | 1997-10-06 | 等化器特性補正機能を有する光ディスク再生装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960044008A KR100197619B1 (ko) | 1996-10-04 | 1996-10-04 | 가변속 재생이 가능한 광디스크시스템의 등화기특성 보상장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19980025766A KR19980025766A (ko) | 1998-07-15 |
KR100197619B1 true KR100197619B1 (ko) | 1999-06-15 |
Family
ID=19476261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960044008A Expired - Fee Related KR100197619B1 (ko) | 1996-10-04 | 1996-10-04 | 가변속 재생이 가능한 광디스크시스템의 등화기특성 보상장치 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6163516A (ko) |
JP (1) | JP2991686B2 (ko) |
KR (1) | KR100197619B1 (ko) |
CN (1) | CN1103998C (ko) |
GB (1) | GB2318207B (ko) |
MY (1) | MY118089A (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100474981B1 (ko) * | 1997-02-17 | 2005-06-07 | 삼성전자주식회사 | 광디스크 재생장치의 파형 등화기 |
JP3966989B2 (ja) * | 1998-04-20 | 2007-08-29 | 株式会社東芝 | ディスク再生装置及びディスク再生方法 |
JPH11317018A (ja) * | 1998-04-30 | 1999-11-16 | Toshiba Corp | ディスク再生装置及びrfアンプ制御回路 |
KR100360680B1 (ko) * | 2000-03-23 | 2002-11-13 | 엘지전자 주식회사 | 광디스크 구동장치의 등화특성 제어장치 및 제어방법 |
US7983132B2 (en) * | 2005-10-25 | 2011-07-19 | Teac Corporation | Optical disk apparatus |
US20070139159A1 (en) * | 2005-12-15 | 2007-06-21 | Intelleflex Corporation | Clock generation circuit |
JP4848035B2 (ja) * | 2009-12-16 | 2011-12-28 | ルネサスエレクトロニクス株式会社 | 受信回路 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0520725A (ja) * | 1991-07-11 | 1993-01-29 | Sony Corp | 光ピツクアツプ装置 |
US5528574A (en) * | 1992-03-09 | 1996-06-18 | Hitachi, Ltd. | Disk reproducing apparatus capable of increasing speed of access to disks recorded at constant linear velocity |
JP3347468B2 (ja) * | 1994-04-20 | 2002-11-20 | キヤノン株式会社 | 情報再生装置 |
JPH087498A (ja) * | 1994-06-17 | 1996-01-12 | Hitachi Ltd | 記録情報再生装置 |
JP3432003B2 (ja) * | 1994-07-06 | 2003-07-28 | キヤノン株式会社 | 情報再生装置及び情報記録再生装置 |
JPH0831092A (ja) * | 1994-07-20 | 1996-02-02 | Hitachi Ltd | 光ディスク装置 |
JP3046515B2 (ja) * | 1994-12-16 | 2000-05-29 | シャープ株式会社 | 光情報記録再生装置の再生回路 |
JPH08194948A (ja) * | 1995-01-17 | 1996-07-30 | Pioneer Electron Corp | 光ディスクプレーヤ |
JP3479149B2 (ja) * | 1995-03-30 | 2003-12-15 | 富士通株式会社 | ディスク装置 |
JP3794036B2 (ja) * | 1995-04-07 | 2006-07-05 | ソニー株式会社 | データの記録媒体及びデータ記録装置 |
US5729517A (en) * | 1995-10-30 | 1998-03-17 | Sharp Kabushiki Kaisha | Data detecting circuit |
JP3397280B2 (ja) * | 1995-11-21 | 2003-04-14 | ソニー株式会社 | 記録媒体記録再生装置および記録媒体記録再生方法 |
KR100206334B1 (ko) * | 1996-02-26 | 1999-07-01 | 윤종용 | 신호처리를 위한 광디스크의 프리앰프 |
JPH1027348A (ja) * | 1996-07-09 | 1998-01-27 | Pioneer Electron Corp | 記録情報再生装置 |
-
1996
- 1996-10-04 KR KR1019960044008A patent/KR100197619B1/ko not_active Expired - Fee Related
-
1997
- 1997-10-03 GB GB9720933A patent/GB2318207B/en not_active Expired - Fee Related
- 1997-10-03 MY MYPI97004642A patent/MY118089A/en unknown
- 1997-10-04 CN CN97121361A patent/CN1103998C/zh not_active Expired - Fee Related
- 1997-10-06 US US08/944,563 patent/US6163516A/en not_active Expired - Lifetime
- 1997-10-06 JP JP9273170A patent/JP2991686B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1178972A (zh) | 1998-04-15 |
GB2318207B (en) | 1998-11-04 |
KR19980025766A (ko) | 1998-07-15 |
GB9720933D0 (en) | 1997-12-03 |
JPH10112140A (ja) | 1998-04-28 |
GB2318207A (en) | 1998-04-15 |
CN1103998C (zh) | 2003-03-26 |
MY118089A (en) | 2004-08-30 |
JP2991686B2 (ja) | 1999-12-20 |
US6163516A (en) | 2000-12-19 |
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