JPS60127668U - Digital disc playback device - Google Patents
Digital disc playback deviceInfo
- Publication number
- JPS60127668U JPS60127668U JP1509784U JP1509784U JPS60127668U JP S60127668 U JPS60127668 U JP S60127668U JP 1509784 U JP1509784 U JP 1509784U JP 1509784 U JP1509784 U JP 1509784U JP S60127668 U JPS60127668 U JP S60127668U
- Authority
- JP
- Japan
- Prior art keywords
- digital
- playback device
- disc playback
- signal
- predetermined value
- 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.)
- Pending
Links
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示すブロック図、第２図は
ディスクより再生されたＨＦ信号とその成形波形を示す
。
１はコンパクトディスクＨＦ信号再生部、２はコンパレ
ータ、３は“１”レベル時間カウンタ、４は０“レベル
時間カウンタ、５及び６は最小値保持回路、７及び８は
基準クロック発生器、９は大小判定回路、１０はカウン
タ、１１はＤ／Ａコンバータ、１２はロースフィルタ。FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 shows an HF signal reproduced from a disk and its shaped waveform. 1 is a compact disc HF signal reproducing unit, 2 is a comparator, 3 is a "1" level time counter, 4 is a 0" level time counter, 5 and 6 are minimum value holding circuits, 7 and 8 are reference clock generators, and 9 is a 10 is a counter, 11 is a D/A converter, and 12 is a low filter.
Claims (1)
スライスしてディジタル信号を得るディジタルディスク
再生装置において、上記方形波の各波形の高レベル期間
及び低レベル期間の同時間データをくり返し得る手段と
、所定時間内に発生する上記同時間データの最小値をそ
れぞれ保持する手段と、上記両最小値を比較して誤差信
号を得る手段と、該誤差信号に応じて上記所定値を定め
る手段とを有するディジタルディスク再生装置。In a digital disk reproducing apparatus which obtains a digital signal by slicing a reproduced signal reproduced from a digital disk at a predetermined value, means capable of repeating the same time data of a high level period and a low level period of each waveform of the square wave; A digital device having means for holding respective minimum values of the same-time data occurring within a time, means for comparing both of the minimum values to obtain an error signal, and means for determining the predetermined value according to the error signal. Disc playback device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1509784U JPS60127668U (en) | 1984-02-06 | 1984-02-06 | Digital disc playback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1509784U JPS60127668U (en) | 1984-02-06 | 1984-02-06 | Digital disc playback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60127668U true JPS60127668U (en) | 1985-08-27 |
Family
ID=30500625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1509784U Pending JPS60127668U (en) | 1984-02-06 | 1984-02-06 | Digital disc playback device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60127668U (en) |
-
1984
- 1984-02-06 JP JP1509784U patent/JPS60127668U/en active Pending
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