KR840000017A - 정보 기록 매체 재생장치 - Google Patents
정보 기록 매체 재생장치 Download PDFInfo
- Publication number
- KR840000017A KR840000017A KR1019820002033A KR820002033A KR840000017A KR 840000017 A KR840000017 A KR 840000017A KR 1019820002033 A KR1019820002033 A KR 1019820002033A KR 820002033 A KR820002033 A KR 820002033A KR 840000017 A KR840000017 A KR 840000017A
- Authority
- KR
- South Korea
- Prior art keywords
- circuit
- recording medium
- information recording
- playback device
- response
- Prior art date
Links
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/09—Digital recording
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K12/00—Producing pulses by distorting or combining sinusoidal waveforms
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
- H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
- H03K5/082—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold
- H03K5/086—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold generated by feedback
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
- Digital Magnetic Recording (AREA)
- Manipulation Of Pulses (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도 및 제3도는 각각 본 발명 장치의 제1 및 제2실시예의 요부 회로 계통도.
Claims (1)
- 정보 기록 매체로부터 이미 기록된 정보에 응한 주파수의 정현 파상신호를 얻고, 이 신호를 어떤 임계치 레벨에 의하여 이 신호에 응한 구형 파상신호로 변환하는 정보 기록 매체 재생장치에 있어서 이 구형 파상신호를 얻는 회로의 출력단자와 입력단자와의 사이에 회로의 출력 평균 직류 전압을 얻고 전압을 이 회로의 입력단자에 귀환시켜, 출력에 응한 임계치 레벨을 가변하는 회로를 설치하여 이루어진 것을 특징으로 하는 정보 기록 매체 재생장치.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56-70948 | 1981-05-12 | ||
| JP56070948A JPS57186216A (en) | 1981-05-12 | 1981-05-12 | Information recording medium reproducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR840000017A true KR840000017A (ko) | 1984-01-30 |
Family
ID=13446228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019820002033A KR840000017A (ko) | 1981-05-12 | 1982-05-10 | 정보 기록 매체 재생장치 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS57186216A (ko) |
| KR (1) | KR840000017A (ko) |
| DE (1) | DE3217482A1 (ko) |
| FR (1) | FR2506053A1 (ko) |
| GB (1) | GB2098379A (ko) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60123766U (ja) * | 1984-01-31 | 1985-08-21 | パイオニア株式会社 | 記録情報再生装置におけるドロツプアウト検出回路 |
| JPS613372A (ja) * | 1984-06-15 | 1986-01-09 | Fujitsu Ltd | 復調回路 |
| JPH04212723A (ja) * | 1990-07-31 | 1992-08-04 | Toshiba Corp | 情報記録再生装置 |
| DE69231740T2 (de) * | 1991-05-10 | 2001-09-20 | Discovision Associates Irvine | System und Verfahren zur optischen Speicherung und Wiedergewinnung von Daten |
| US5537379A (en) | 1991-05-10 | 1996-07-16 | Discovision Associates | Optical data storage and retrieval system and method |
| US5790495A (en) | 1994-05-06 | 1998-08-04 | Discovision Associates | Data generator assembly for retrieving stored data by comparing threshold signal with preprocessed signal having DC component |
| US5894468A (en) * | 1994-05-06 | 1999-04-13 | Discovision Associates | Data recovery with differentiation and partial integration stages to eliminate noises and DC offset level |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3626209A (en) * | 1970-04-06 | 1971-12-07 | Electro Optical Ind Inc | Square wave generating circuit |
| US3909728A (en) * | 1973-02-16 | 1975-09-30 | Contraves Ag | Apparatus for generating a synchronization voltage for the ignition pulse control of controlled rectifier-power stages |
| JPS5369006A (en) * | 1976-11-30 | 1978-06-20 | Sony Corp | Reproducer of disc form signal recording media |
| US4263555A (en) * | 1979-06-15 | 1981-04-21 | Rca Corporation | Signal detection system |
-
1981
- 1981-05-12 JP JP56070948A patent/JPS57186216A/ja active Pending
-
1982
- 1982-05-06 GB GB8213031A patent/GB2098379A/en not_active Withdrawn
- 1982-05-10 DE DE19823217482 patent/DE3217482A1/de not_active Ceased
- 1982-05-10 KR KR1019820002033A patent/KR840000017A/ko unknown
- 1982-05-12 FR FR8208224A patent/FR2506053A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE3217482A1 (de) | 1982-11-25 |
| FR2506053A1 (fr) | 1982-11-19 |
| GB2098379A (en) | 1982-11-17 |
| JPS57186216A (en) | 1982-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR830008293A (ko) | 디스크 재생장치 | |
| KR840001034A (ko) | 잡음 저감회로 | |
| KR920001488A (ko) | 디스크 재생 장치 | |
| KR840001743A (ko) | 정보신호 유무 판별회로 장치 | |
| KR840005256A (ko) | 어드레스 정보 표시장치 | |
| KR900008440A (ko) | 디지탈 신호 재생회로 | |
| KR840000017A (ko) | 정보 기록 매체 재생장치 | |
| KR920005090A (ko) | 재생 장치 | |
| KR860004382A (ko) | 디지탈 신호 처리회로 | |
| KR910006964A (ko) | 잡음저감회로 | |
| KR890003200A (ko) | 수평 편향 출력 회로 | |
| KR900702514A (ko) | 광학 기록매체의 유형 식별회로 | |
| KR850002711A (ko) | 복소용량성 임피던스 | |
| KR850006952A (ko) | 테이프 종단 검출회로 | |
| KR900017024A (ko) | 정보 신호 기록장치 | |
| KR880004432A (ko) | 기록장치 | |
| KR880010578A (ko) | 병렬형 d/a 콘버터의 직선성 보상회로 | |
| KR830005755A (ko) | 저역통과 특성의 증폭기장치 | |
| KR840005942A (ko) | 전류 감지 회로 | |
| KR870006562A (ko) | 디스크 재생 장치 | |
| KR910010513A (ko) | 다이나믹램의 분리회로 | |
| KR880002319A (ko) | 게인 제어 앰프 | |
| KR920001431A (ko) | 데이타 기록 장치 | |
| KR880002125A (ko) | 자기 헤드 | |
| KR890004495A (ko) | 리셋트신호 발생회로 |