KR920001998B1 - E.f.m. signal recording and playing back circuit of optical recording and playing back device - Google Patents
E.f.m. signal recording and playing back circuit of optical recording and playing back deviceInfo
- Publication number
- KR920001998B1 KR920001998B1 KR8907647A KR890007647A KR920001998B1 KR 920001998 B1 KR920001998 B1 KR 920001998B1 KR 8907647 A KR8907647 A KR 8907647A KR 890007647 A KR890007647 A KR 890007647A KR 920001998 B1 KR920001998 B1 KR 920001998B1
- Authority
- KR
- South Korea
- Prior art keywords
- playing back
- monostable
- recording
- fed
- detects
- Prior art date
Links
Classifications
-
- 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
- G11B20/02—Analogue recording or reproducing
- G11B20/06—Angle-modulation recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
-
- 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
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR8907647A KR920001998B1 (en) | 1989-06-03 | 1989-06-03 | E.f.m. signal recording and playing back circuit of optical recording and playing back device |
JP2143258A JP2740336B2 (ja) | 1989-06-03 | 1990-05-31 | 変調信号を書込み可能光ディスクに書き込み、再生する回路 |
NL9001247A NL193156C (nl) | 1989-06-03 | 1990-05-31 | Reproductieketen voor gegevens van een optische schijf. |
US07/531,525 US5189657A (en) | 1989-06-03 | 1990-06-01 | Circuit for writing and reproducing a modulation signal onto writable optical disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR8907647A KR920001998B1 (en) | 1989-06-03 | 1989-06-03 | E.f.m. signal recording and playing back circuit of optical recording and playing back device |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910001721A KR910001721A (ko) | 1991-01-31 |
KR920001998B1 true KR920001998B1 (en) | 1992-03-09 |
Family
ID=19286782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR8907647A KR920001998B1 (en) | 1989-06-03 | 1989-06-03 | E.f.m. signal recording and playing back circuit of optical recording and playing back device |
Country Status (4)
Country | Link |
---|---|
US (1) | US5189657A (ko) |
JP (1) | JP2740336B2 (ko) |
KR (1) | KR920001998B1 (ko) |
NL (1) | NL193156C (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3551727B2 (ja) * | 1997-10-21 | 2004-08-11 | ソニー株式会社 | 光情報記録装置、光情報記録媒体及び光情報再生装置 |
US6195778B1 (en) | 1998-07-30 | 2001-02-27 | Lsi Logic Corp. | Demodulation of DVD codewords using dependency-sorted tables for duplicate/dependent and unique/non-dependent mappings |
US6775217B1 (en) | 2000-05-18 | 2004-08-10 | Cirrus Logic, Inc. | Multi-stage ring oscillator for providing stable delays on EFM data pulses for recording CD-R and CD-RW medium |
JP4585214B2 (ja) | 2004-03-25 | 2010-11-24 | 株式会社東芝 | 磁気記録媒体及びそれを用いた磁気記録再生装置 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL66620C (ko) * | 1943-06-24 | |||
US4397042A (en) * | 1981-07-22 | 1983-08-02 | Sumitomo Electric Industries, Ltd. | Optical modulation/demodulation system |
JPS58158039A (ja) * | 1982-03-15 | 1983-09-20 | Toshiba Corp | 光ディスクの記録再生装置 |
US4583211A (en) * | 1982-06-15 | 1986-04-15 | Tokyo Shibaura Denki Kabushiki Kaisha | Frequency detecting circuit for digital information reproducing system |
US4497069A (en) * | 1983-01-20 | 1985-02-05 | Braunhut Harold N | Universally fitting, modular ballistic garment |
JPS61220173A (ja) * | 1985-03-26 | 1986-09-30 | Toshiba Corp | 情報記録方法及び装置 |
JPS62180568A (ja) * | 1986-02-04 | 1987-08-07 | Sony Corp | デイスク状記録媒体の欠陥検出装置 |
US4873680A (en) * | 1987-03-13 | 1989-10-10 | Laserdrive Ltd. | Apparatus and method for detecting and compensating for pit extension in an optical disk recording system |
US4881076A (en) * | 1987-12-01 | 1989-11-14 | International Business Machines Corporation | Encoding for pit-per-transition optical data recording |
NL8800151A (nl) * | 1988-01-22 | 1989-08-16 | Philips Nv | Werkwijze en inrichting voor het optekenen van een informatiesignaal. |
-
1989
- 1989-06-03 KR KR8907647A patent/KR920001998B1/ko not_active IP Right Cessation
-
1990
- 1990-05-31 NL NL9001247A patent/NL193156C/nl not_active IP Right Cessation
- 1990-05-31 JP JP2143258A patent/JP2740336B2/ja not_active Expired - Fee Related
- 1990-06-01 US US07/531,525 patent/US5189657A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0323518A (ja) | 1991-01-31 |
NL193156B (nl) | 1998-08-03 |
NL9001247A (nl) | 1991-01-02 |
KR910001721A (ko) | 1991-01-31 |
US5189657A (en) | 1993-02-23 |
JP2740336B2 (ja) | 1998-04-15 |
NL193156C (nl) | 1998-12-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 19970829 Year of fee payment: 8 |
|
LAPS | Lapse due to unpaid annual fee |