KR100206334B1 - 신호처리를 위한 광디스크의 프리앰프 - Google Patents
신호처리를 위한 광디스크의 프리앰프 Download PDFInfo
- Publication number
- KR100206334B1 KR100206334B1 KR1019960004650A KR19960004650A KR100206334B1 KR 100206334 B1 KR100206334 B1 KR 100206334B1 KR 1019960004650 A KR1019960004650 A KR 1019960004650A KR 19960004650 A KR19960004650 A KR 19960004650A KR 100206334 B1 KR100206334 B1 KR 100206334B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- gain control
- automatic gain
- control unit
- output
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Control Of Amplification And Gain Control (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
Claims (3)
- 광신호를 읽어들이는 픽업부와, 상기 미세한 광신호를 증폭하는 라디오 주파수 앰프와, 상기 증폭된 신호를 처리하기 위한 신호 처리부를 포함하는 광디스크의 프리앰프 장치에 있어서, 상기 라디오 주파수 앰프의 출력 신호에 응답하여 일정한 레벨로 상기 출력신호를 증폭하는 자동이득제어부와, 상기 자동이득제어부의 출력단에 입력단이 접속되고 입력단에 출력단이 접속되어, 상기 자동이득제어부의 일정 레벨의 출력을 정류를 통하여 소정의 레벨과 비교하여 검출된 신호를 상기 자동이득제어부로 보내기 위한 자동이득제어 감지부와, 상기 자동이득제어 감지부에 접속되어 등화 특성을 달리할 수 있는 모드를 선택하기 위한 모드 선택부를 더 구비하고 있음을 특징으로 하는 광디스크의 프리앰프 장치.
- 제1항에 있어서, 상기 자동이득제어부는, 입력 전압에 의해 그 출력 전압레벨을 조절하는 전압제어앰프로 이루어짐을 특징으로 하는 광디스크의 프리앰프 장치.
- 제1항에 있어서, 상기 자동이득제어 감지부는, 상기 자동이득제어부에 의해 증폭된 신호에 응답하여 전파 정류된 신호를 출력하는 전파 정류기와, 선형신호를 입력받아 로가리즘으로 출력하는 로그 앰프와, 상기 로그 앰프의 출력신호를 직류로 변환하는 적분기와, 자동이득제어 레벨 조정용 단자 및 상기 적분기의 출력을 두개의 입력으로 하여 상기 자동이득제어부로 비교 출력하는 비교기로 구성됨을 특징으로 하는 광디스크의 프리앰프 장치.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960004650A KR100206334B1 (ko) | 1996-02-26 | 1996-02-26 | 신호처리를 위한 광디스크의 프리앰프 |
CN97102807A CN1086047C (zh) | 1996-02-26 | 1997-02-24 | 光盘系统的信号处理前置放大器 |
US08/805,726 US5745469A (en) | 1996-02-26 | 1997-02-25 | Signal-processing preamplifier for an optical disc system |
EP97301230A EP0792016B1 (en) | 1996-02-26 | 1997-02-25 | Signal-processing preamplifier for optical disc system |
DE69702788T DE69702788T2 (de) | 1996-02-26 | 1997-02-25 | Signalverarbeitungsvorverstärker für eine Vorrichtung für optische Platte |
ES97301230T ES2151228T3 (es) | 1996-02-26 | 1997-02-25 | Preamplificador de procesamiento de señales para un sistema de disco optico. |
JP9040986A JP2820676B2 (ja) | 1996-02-26 | 1997-02-25 | 信号処理のための光ディスクのプリアンプ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960004650A KR100206334B1 (ko) | 1996-02-26 | 1996-02-26 | 신호처리를 위한 광디스크의 프리앰프 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970063155A KR970063155A (ko) | 1997-09-12 |
KR100206334B1 true KR100206334B1 (ko) | 1999-07-01 |
Family
ID=19451787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960004650A Expired - Fee Related KR100206334B1 (ko) | 1996-02-26 | 1996-02-26 | 신호처리를 위한 광디스크의 프리앰프 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5745469A (ko) |
EP (1) | EP0792016B1 (ko) |
JP (1) | JP2820676B2 (ko) |
KR (1) | KR100206334B1 (ko) |
CN (1) | CN1086047C (ko) |
DE (1) | DE69702788T2 (ko) |
ES (1) | ES2151228T3 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100802125B1 (ko) | 2005-08-22 | 2008-02-11 | 삼성전자주식회사 | 자동이득 제어기 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100197619B1 (ko) * | 1996-10-04 | 1999-06-15 | 윤종용 | 가변속 재생이 가능한 광디스크시스템의 등화기특성 보상장치 |
JP4036515B2 (ja) * | 1997-12-22 | 2008-01-23 | 松下電器産業株式会社 | 光ディスク装置 |
CN1295685C (zh) * | 2003-11-24 | 2007-01-17 | 联发科技股份有限公司 | 光碟机的自动增益控制装置的控制电路 |
KR100555704B1 (ko) * | 2004-03-09 | 2006-03-03 | 삼성전자주식회사 | 광 재생장치 및 그의 자동 이득 조정방법 |
JP4244907B2 (ja) * | 2004-10-25 | 2009-03-25 | ソニー株式会社 | 光ディスク装置 |
KR100790967B1 (ko) * | 2005-07-27 | 2008-01-02 | 삼성전자주식회사 | 자동이득 조절기의 제어전압을 디지털적으로 제어할 수있는 자동이득 조절기 및 제어방법 |
TWI337350B (en) * | 2006-06-05 | 2011-02-11 | Mediatek Inc | Automatic gain controller and method thereof |
US20090074993A1 (en) * | 2007-09-18 | 2009-03-19 | Gm Global Technology Operations, Inc. | Active material activated cover |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3725646A (en) * | 1971-04-19 | 1973-04-03 | Minnesota Mining & Mfg | System for reproducing digital information |
JPS5686581A (en) * | 1979-12-18 | 1981-07-14 | Fuji Xerox Co Ltd | Keyed agc circuit in video information transmitter |
AU551633B2 (en) * | 1980-11-27 | 1986-05-08 | Sony Corporation | Signal level detecting circuit |
JP2667522B2 (ja) * | 1989-07-06 | 1997-10-27 | 株式会社日立製作所 | 光ディスク装置 |
JP2600402B2 (ja) * | 1989-11-20 | 1997-04-16 | 松下電器産業株式会社 | 光ディスク信号再生装置 |
JP2852165B2 (ja) * | 1991-11-12 | 1999-01-27 | 三星電子株式会社 | ディジタル磁気記録再生装置のピックアップ信号補正装置 |
JP3293240B2 (ja) * | 1993-05-18 | 2002-06-17 | ヤマハ株式会社 | ディジタル信号処理装置 |
-
1996
- 1996-02-26 KR KR1019960004650A patent/KR100206334B1/ko not_active Expired - Fee Related
-
1997
- 1997-02-24 CN CN97102807A patent/CN1086047C/zh not_active Expired - Fee Related
- 1997-02-25 US US08/805,726 patent/US5745469A/en not_active Expired - Lifetime
- 1997-02-25 JP JP9040986A patent/JP2820676B2/ja not_active Expired - Fee Related
- 1997-02-25 EP EP97301230A patent/EP0792016B1/en not_active Expired - Lifetime
- 1997-02-25 ES ES97301230T patent/ES2151228T3/es not_active Expired - Lifetime
- 1997-02-25 DE DE69702788T patent/DE69702788T2/de not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100802125B1 (ko) | 2005-08-22 | 2008-02-11 | 삼성전자주식회사 | 자동이득 제어기 |
Also Published As
Publication number | Publication date |
---|---|
US5745469A (en) | 1998-04-28 |
EP0792016A1 (en) | 1997-08-27 |
JPH09320057A (ja) | 1997-12-12 |
DE69702788T2 (de) | 2000-12-28 |
JP2820676B2 (ja) | 1998-11-05 |
DE69702788D1 (de) | 2000-09-21 |
CN1086047C (zh) | 2002-06-05 |
CN1162816A (zh) | 1997-10-22 |
KR970063155A (ko) | 1997-09-12 |
ES2151228T3 (es) | 2000-12-16 |
EP0792016B1 (en) | 2000-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100206334B1 (ko) | 신호처리를 위한 광디스크의 프리앰프 | |
US5574714A (en) | Amplifier with peak and bottom signal level shifting control | |
US6930553B2 (en) | Automatic gain control device and automatic gain control method | |
KR19990051851A (ko) | 디스크 재생 장치의 리드 회로 | |
JPH05244025A (ja) | ディジタル移動無線受信機 | |
JPH0737330A (ja) | 情報再生装置 | |
US6215749B1 (en) | Signal distortion minimization apparatus in high speed optical disc reproducing device | |
JPH0255428A (ja) | マイクロ波agc回路 | |
US5223946A (en) | Apparatus using comparator to detect drop-out of recorded video signal | |
KR940005841B1 (ko) | 브이시알(vcr)의 화면조정 신호 발생장치 및 방법 | |
US20090207719A1 (en) | Optical Disc Apparatus | |
US4630251A (en) | Video disc reproducing apparatus | |
JP4077363B2 (ja) | 自動利得制御装置、及び自動利得制御方法 | |
US7768884B2 (en) | Dropout detection device, disk reproduction apparatus, and dropout detection method | |
JP3757494B2 (ja) | 信号レベル制御装置及び方法 | |
KR200147519Y1 (ko) | 고주파 안정화 회로 | |
JP2001176097A (ja) | 光ディスク装置 | |
JPH0562346A (ja) | 情報再生装置 | |
JPH0567332A (ja) | 情報記録再生装置 | |
JPS6182378A (ja) | ドロツプアウト検出回路 | |
JPS62168484A (ja) | ノイズリダクシヨン回路 | |
JPH08249701A (ja) | 光信号検出増幅装置 | |
JPH03175708A (ja) | 自動利得制御回路 | |
KR19990004129A (ko) | 오디오 주파수 특성 제어장치 | |
JPH10269617A (ja) | 光ディスク装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19960226 |
|
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19960226 Comment text: Request for Examination of Application |
|
PG1501 | Laying open of application | ||
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 19981020 Patent event code: PE09021S01D |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19990318 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19990408 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 19990409 End annual number: 3 Start annual number: 1 |
|
PG1601 | Publication of registration | ||
PR1001 | Payment of annual fee |
Payment date: 20020329 Start annual number: 4 End annual number: 4 |
|
PR1001 | Payment of annual fee |
Payment date: 20030328 Start annual number: 5 End annual number: 5 |
|
PR1001 | Payment of annual fee |
Payment date: 20040330 Start annual number: 6 End annual number: 6 |
|
PR1001 | Payment of annual fee |
Payment date: 20050330 Start annual number: 7 End annual number: 7 |
|
PR1001 | Payment of annual fee |
Payment date: 20060330 Start annual number: 8 End annual number: 8 |
|
PR1001 | Payment of annual fee |
Payment date: 20070329 Start annual number: 9 End annual number: 9 |
|
PR1001 | Payment of annual fee |
Payment date: 20080328 Start annual number: 10 End annual number: 10 |
|
PR1001 | Payment of annual fee |
Payment date: 20090330 Start annual number: 11 End annual number: 11 |
|
PR1001 | Payment of annual fee |
Payment date: 20100329 Start annual number: 12 End annual number: 12 |
|
PR1001 | Payment of annual fee |
Payment date: 20110330 Start annual number: 13 End annual number: 13 |
|
FPAY | Annual fee payment |
Payment date: 20120329 Year of fee payment: 14 |
|
PR1001 | Payment of annual fee |
Payment date: 20120329 Start annual number: 14 End annual number: 14 |
|
FPAY | Annual fee payment |
Payment date: 20130328 Year of fee payment: 15 |
|
PR1001 | Payment of annual fee |
Payment date: 20130328 Start annual number: 15 End annual number: 15 |
|
PR1001 | Payment of annual fee |
Payment date: 20140328 Start annual number: 16 End annual number: 16 |
|
LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |
Termination category: Default of registration fee Termination date: 20160309 |