JPH0270539U - - Google Patents
Info
- Publication number
- JPH0270539U JPH0270539U JP14979188U JP14979188U JPH0270539U JP H0270539 U JPH0270539 U JP H0270539U JP 14979188 U JP14979188 U JP 14979188U JP 14979188 U JP14979188 U JP 14979188U JP H0270539 U JPH0270539 U JP H0270539U
- Authority
- JP
- Japan
- Prior art keywords
- bandpass filter
- clock
- output signal
- amplifier
- delay line
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 230000008929 regeneration Effects 0.000 claims 1
- 238000011069 regeneration method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Synchronisation In Digital Transmission Systems (AREA)
Description
第１図はこの考案の一実施例によるクロツク再
生装置を示す図、第２図は第１図の各部の波形を
示す図、第３図は従来のクロツク再生装置を示す
図である。
３は第１のバンドパスフイルタ、４は第２のバ
ンドパスフイルタ、５は第一の増幅器、６は第２
の増幅器、７は第１のピーク検出器、８は第２の
ピーク検出器、９は第１の遅延線、１０は第２の
遅延線、１１は第１の識別器、１２は第２の識別
器、１３は選択器である。なお、図中同一あるい
は相当部分には同一符号を付して示してある。
FIG. 1 is a diagram showing a clock reproducing device according to an embodiment of the invention, FIG. 2 is a diagram showing waveforms of various parts in FIG. 1, and FIG. 3 is a diagram showing a conventional clock reproducing device. 3 is a first bandpass filter, 4 is a second bandpass filter, 5 is a first amplifier, and 6 is a second bandpass filter.
7 is a first peak detector, 8 is a second peak detector, 9 is a first delay line, 10 is a second delay line, 11 is a first discriminator, 12 is a second The discriminator 13 is a selector. It should be noted that the same or corresponding parts in the figures are indicated by the same reference numerals.
Claims (1)
ロツク再生装置において、入力信号データのクロ
ツク周波数成分のみ通過させある周波数選択度の
第１のバンドパスフイルタと、上記入力信号デー
タのクロツク周波数成分のみ通過させ、上記第１
のバンドパスフイルタと異なる周波数選択度を持
つ第２のバンドパスフイルタと、第１のバンドパ
スフイルタ出力信号を増幅する第１の増幅器と、
第２のバンドパスフイルタ出力信号を増幅する第
２の増幅器と、第１のバンドパスフイルタ出力信
号のピーク値を検出する第１のピーク検出器と、
第２のバンドパスフイルタ出力信号のピーク値を
検出する第２のピーク検出器と、第１の増幅器の
出力信号を遅延させる第１の遅延線と、第２の増
幅器の出力信号を遅延させる第２の遅延線と、第
１のピーク検出器の検出レベルを識別する第１の
識別器と、第２のピーク検出器の検出レベルを識
別する第２の識別器と、上記第１の遅延線出力ク
ロツク信号と、第２の遅延線出力クロツク信号を
切り換える選択器とを有することを特徴とするク
ロツク再生装置。 A clock reproducing device that reproduces a clock based on input signal data includes a first bandpass filter having a certain frequency selectivity that allows only the clock frequency component of the input signal data to pass, and a first bandpass filter that allows only the clock frequency component of the input signal data to pass, and 1st
a second bandpass filter having a frequency selectivity different from that of the bandpass filter; and a first amplifier that amplifies the first bandpass filter output signal.
a second amplifier that amplifies the second bandpass filter output signal; a first peak detector that detects the peak value of the first bandpass filter output signal;
a second peak detector for detecting the peak value of the second bandpass filter output signal; a first delay line for delaying the output signal of the first amplifier; and a first delay line for delaying the output signal of the second amplifier. a first discriminator that identifies the detection level of the first peak detector; a second discriminator that identifies the detection level of the second peak detector; and the first delay line. 1. A clock regeneration device comprising a selector for switching between an output clock signal and a second delay line output clock signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14979188U JPH0270539U (en) | 1988-11-17 | 1988-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14979188U JPH0270539U (en) | 1988-11-17 | 1988-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0270539U true JPH0270539U (en) | 1990-05-29 |
Family
ID=31422344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14979188U Pending JPH0270539U (en) | 1988-11-17 | 1988-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0270539U (en) |
-
1988
- 1988-11-17 JP JP14979188U patent/JPH0270539U/ja active Pending
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