JPH048546U - - Google Patents
Info
- Publication number
- JPH048546U JPH048546U JP4904590U JP4904590U JPH048546U JP H048546 U JPH048546 U JP H048546U JP 4904590 U JP4904590 U JP 4904590U JP 4904590 U JP4904590 U JP 4904590U JP H048546 U JPH048546 U JP H048546U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- data
- clock signal
- comparison means
- phase
- 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
- 230000010363 phase shift Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
Landscapes
- Synchronisation In Digital Transmission Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Dc Digital Transmission (AREA)
Description
第１図は、本考案の一実施例を示す回路図、第
２図および第３図は、それぞれ同実施例に用いら
れる移相器の具体例を示す回路図、第４図乃至第
６図は、それぞれ同実施例に用いられる位相比較
器の具体例を示す回路図、第７図は、同実施例に
用いられる積分器の動作を説明するための図、第
８図は、従来のデータ識別再生装置の一例を示す
回路図である。
１１……等化増幅器、１２……識別再生回路、
１３……タイミング抽出回路、１４……移相器、
１５……位相比較器、１６，１７……積分器、１
８……比較器。
FIG. 1 is a circuit diagram showing one embodiment of the present invention, FIGS. 2 and 3 are circuit diagrams showing specific examples of a phase shifter used in the same embodiment, and FIGS. 4 to 6 7 is a circuit diagram showing a specific example of the phase comparator used in the same embodiment, FIG. 7 is a diagram for explaining the operation of the integrator used in the same embodiment, and FIG. 8 is a diagram showing conventional data. FIG. 2 is a circuit diagram showing an example of an identification and reproducing device. 11... Equalization amplifier, 12... Discrimination regeneration circuit,
13...timing extraction circuit, 14...phase shifter,
15... Phase comparator, 16, 17... Integrator, 1
8... Comparator.
Claims (1)
ツク信号により正規のデータ信号の認識再生を行
うデータ識別再生装置において、上記データ信号
とクロツク信号の位相差を比較する位相比較手段
と、この位相比較手段の位相差信号と参照信号を
比較しその誤差信号を出力する比較手段と、この
比較手段より出力される誤差信号に基づいて上記
クロツク信号の移相を可変制御する移相手段とを
具備したことを特徴とするデータ識別再生装置。 A data identification and reproducing device for recognizing and reproducing a regular data signal using a data signal and a clock signal extracted from the data signal, further comprising a phase comparison means for comparing the phase difference between the data signal and the clock signal; The clock signal includes a comparison means for comparing the phase difference signal and a reference signal and outputting an error signal thereof, and a phase shift means for variably controlling the phase shift of the clock signal based on the error signal output from the comparison means. Characteristic data identification and reproduction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4904590U JPH048546U (en) | 1990-05-11 | 1990-05-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4904590U JPH048546U (en) | 1990-05-11 | 1990-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH048546U true JPH048546U (en) | 1992-01-27 |
Family
ID=31566399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4904590U Pending JPH048546U (en) | 1990-05-11 | 1990-05-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09181711A (en) * | 1995-12-26 | 1997-07-11 | Nec Corp | Clock pulse phase control circuit |
-
1990
- 1990-05-11 JP JP4904590U patent/JPH048546U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09181711A (en) * | 1995-12-26 | 1997-07-11 | Nec Corp | Clock pulse phase control circuit |
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