KR980004657A - Mirror circuit for both CD and DVD - Google Patents
Mirror circuit for both CD and DVD Download PDFInfo
- Publication number
- KR980004657A KR980004657A KR1019960025446A KR19960025446A KR980004657A KR 980004657 A KR980004657 A KR 980004657A KR 1019960025446 A KR1019960025446 A KR 1019960025446A KR 19960025446 A KR19960025446 A KR 19960025446A KR 980004657 A KR980004657 A KR 980004657A
- Authority
- KR
- South Korea
- Prior art keywords
- dvd
- mirror circuit
- present
- signal read
- signal
- 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
- G11B20/10—Digital recording or reproducing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Television Signal Processing For Recording (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
본 발명은 CD/DVD(Compact Disc/Digital Video Disc)겸용의 미러(Mirror)회로에 관한 것이다. 본 발명은 일반적인 미러회로의 입력단에 DVD로부터 독출된 RF신호를 입력받아 리플성분인 저역의 이득을 증가시켜 출력하는 필터를 연결한다. 이와 같은 본 발명은, DVD에서 독출한 미약한 신호도 CD에서 독출한 신호와 같이 파형을 보정하여 주므로써, 일반적인 CD의 미러회로를 이용하여 DVD의 미러신호를 발생할 수 있도록 한다. 따라서, 본 발명은 DVD에서 트랙점프시 정확성을 기할 수 있게 한다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mirror circuit for both CD / DVD (Compact Disc / Digital Video Disc). In the present invention, an RF signal read out from a DVD is input to an input terminal of a general mirror circuit, and a filter for increasing a gain of a low frequency band, which is a ripple component, is connected. According to the present invention, a weak signal read from a DVD is corrected in waveform like a signal read from a CD so that a mirror signal of a DVD can be generated using a general CD mirror circuit. Thus, the present invention makes it possible to achieve accuracy in track jumping on a DVD.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제2도는 본 발명에 의한 CD/DVD겸용의 미러회로를 나타낸 구성도.FIG. 2 is a configuration diagram showing a mirror circuit serving also as a CD / DVD according to the present invention; FIG.
제3도는 제2도에서 필터(10)의 특성을 나타낸 그래프.FIG. 3 is a graph showing the characteristics of the filter 10 in FIG. 2; FIG.
제4도는 제2도의 각 부 입·출력을 나타낸 파형도.FIG. 4 is a waveform diagram showing each input / output of FIG. 2;
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960025446A KR100197607B1 (en) | 1996-06-28 | 1996-06-28 | Mirror circuit uasble for cd/dvd in common |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960025446A KR100197607B1 (en) | 1996-06-28 | 1996-06-28 | Mirror circuit uasble for cd/dvd in common |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR980004657A true KR980004657A (en) | 1998-03-30 |
| KR100197607B1 KR100197607B1 (en) | 1999-06-15 |
Family
ID=19464509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960025446A KR100197607B1 (en) | 1996-06-28 | 1996-06-28 | Mirror circuit uasble for cd/dvd in common |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100197607B1 (en) |
-
1996
- 1996-06-28 KR KR1019960025446A patent/KR100197607B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100197607B1 (en) | 1999-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1999038255A2 (en) | Pwm amplifier | |
| EP0886372A3 (en) | Oscillator circuit containing a noise prevention circuit | |
| KR840001034A (en) | Noise reduction circuit | |
| KR910006360B1 (en) | Muting circuit of digital audio apparatus | |
| MY119129A (en) | Device for reading from and/or writing to optical recording media | |
| DE69531348D1 (en) | PHASE NOISE DETECTOR | |
| KR980004657A (en) | Mirror circuit for both CD and DVD | |
| KR920005458A (en) | Amplification circuit | |
| KR890016850A (en) | Mode discrimination circuit | |
| KR970050792A (en) | Digital disc data player | |
| KR900004179A (en) | Noise Reduction Circuit | |
| KR19980040073A (en) | Track crossing signal correction device of optical disc system | |
| KR970012533A (en) | D / A conversion interface | |
| KR970003128A (en) | Track counter circuit of a compact disc player | |
| KR930004524Y1 (en) | Data audio noise removing circuit of cd-rom | |
| KR850007515A (en) | Noise reduction device | |
| KR960025622A (en) | Tracking Error Detection Circuit of Optical Disc Player with Automatic Balance Adjustment | |
| KR970008061A (en) | Automatic control recording circuit Recording / playback control signal generator with malfunction prevention circuit | |
| JP2771314B2 (en) | Broadband amplifier | |
| KR100241755B1 (en) | Filter amplifier with improving of comparative character | |
| KR930000146Y1 (en) | Pop noise removing circuit of cassette tape recorder | |
| JP3019913B2 (en) | Information reproduction circuit | |
| JPH03131124A (en) | Audio reproducing circuit | |
| KR20020013260A (en) | Conversion filter for direct current of pulse width modulation | |
| JPH04101516A (en) | Offset compensation circuit for a/d converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20080130 Year of fee payment: 10 |
|
| LAPS | Lapse due to unpaid annual fee |