JPH021943U - - Google Patents
Info
- Publication number
- JPH021943U JPH021943U JP8008788U JP8008788U JPH021943U JP H021943 U JPH021943 U JP H021943U JP 8008788 U JP8008788 U JP 8008788U JP 8008788 U JP8008788 U JP 8008788U JP H021943 U JPH021943 U JP H021943U
- Authority
- JP
- Japan
- Prior art keywords
- shift clock
- signal
- clock
- converter
- generates
- 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 description 5
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Dc Digital Transmission (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Description
第１図はこの考案の実施例が適用される調歩同
期方式の受信機および送信機の構成を示すブロツ
ク図、第２図はクロツクずれ検知装置９の内部構
成を示す回路図、第３図はシフトクロツク発生装
置１２の内部構成を示す回路図、第４〜６図はク
ロツクずれ検知装置９内で発生する各信号を示す
信号波形図、第７図はシフトクロツク発生装置１
２内で発生する各信号を示す信号波形図である。
１……送信機、２……発振器、３……シフトク
ロツク発生装置、４……並直変換装置、５……入
力端子、６……伝送ライン、７……受信機、８…
…スタートビツト検出回路、９……クロツクずれ
検知装置、１０……アンド回路、１１……発振器
、１２……シフトクロツク発生装置、１３……直
並変換装置、１４……出力端子。
FIG. 1 is a block diagram showing the configuration of an asynchronous receiver and transmitter to which an embodiment of this invention is applied, FIG. 2 is a circuit diagram showing the internal configuration of the clock deviation detection device 9, and FIG. A circuit diagram showing the internal configuration of the shift clock generator 12, FIGS. 4 to 6 are signal waveform diagrams showing each signal generated in the clock shift detection device 9, and FIG.
2 is a signal waveform diagram showing each signal generated within 2. FIG. DESCRIPTION OF SYMBOLS 1... Transmitter, 2... Oscillator, 3... Shift clock generator, 4... Parallel to serial converter, 5... Input terminal, 6... Transmission line, 7... Receiver, 8...
. . . Start bit detection circuit, 9 . . . Clock shift detection device, 10 . . . AND circuit, 11 .
Claims (1)
られてくるシリアルデータ中に付加されているス
タートエレメントまたは／およびストツプエレメ
ントを判読する判読手段と、 この判読手段の出力に基づいて受信データを直
並列変換する変換器と、 発振器から得られるクロツクパルスから上記変
換器の動作信号を発生するシフトクロツク発生手
段と、 を備えた調歩同期方式用受信機において、 送信されてきたシリアルデータの単位語長を基
準にして、発振器から得られるクロツクパルスの
同期を判別し、周期の過大または過小信号を発生
するクロツクずれ検知回路と、 このクロツクずれ検知回路より得られる過大・
過小信号に基づいて、上記シフトクロツク発生手
段から発生するシフトクロツクパルスの周期を補
正するシフトクロツク補正回路と、 を備えた調歩同期方式用受信機。[Claims for Utility Model Registration] A reading means for reading a start element and/or a stop element added to serial data sent from a transmitter at regular intervals using the start-stop synchronization method; An asynchronous receiver comprising: a converter that converts received data into serial/parallel data based on the output; and shift clock generation means that generates an operating signal for the converter from a clock pulse obtained from an oscillator. A clock deviation detection circuit that determines the synchronization of clock pulses obtained from an oscillator based on the unit word length of serial data and generates a signal with an excessive or insufficient period;
A shift clock correction circuit that corrects the period of the shift clock pulse generated from the shift clock generation means based on the under-scalation signal, and an asynchronous receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8008788U JPH021943U (en) | 1988-06-16 | 1988-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8008788U JPH021943U (en) | 1988-06-16 | 1988-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH021943U true JPH021943U (en) | 1990-01-09 |
Family
ID=31304933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8008788U Pending JPH021943U (en) | 1988-06-16 | 1988-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH021943U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH066341A (en) * | 1992-06-17 | 1994-01-14 | Sharp Corp | Reception circuit for start-stop system communication |
| JP2005070847A (en) * | 2003-08-26 | 2005-03-17 | Sunx Ltd | Sensor system and sensor unit thereof |
| JP2014124245A (en) * | 2012-12-25 | 2014-07-07 | Hoya Corp | Endoscope |
-
1988
- 1988-06-16 JP JP8008788U patent/JPH021943U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH066341A (en) * | 1992-06-17 | 1994-01-14 | Sharp Corp | Reception circuit for start-stop system communication |
| JP2005070847A (en) * | 2003-08-26 | 2005-03-17 | Sunx Ltd | Sensor system and sensor unit thereof |
| JP4536340B2 (en) * | 2003-08-26 | 2010-09-01 | サンクス株式会社 | Sensor system and sensor unit thereof |
| JP2014124245A (en) * | 2012-12-25 | 2014-07-07 | Hoya Corp | Endoscope |
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