JPS63165942U - - Google Patents
Info
- Publication number
- JPS63165942U JPS63165942U JP5897687U JP5897687U JPS63165942U JP S63165942 U JPS63165942 U JP S63165942U JP 5897687 U JP5897687 U JP 5897687U JP 5897687 U JP5897687 U JP 5897687U JP S63165942 U JPS63165942 U JP S63165942U
- Authority
- JP
- Japan
- Prior art keywords
- transmission line
- transmission
- mask
- terminal connected
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 33
- 230000004913 activation Effects 0.000 claims 4
- 230000000873 masking effect Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Dc Digital Transmission (AREA)
- Small-Scale Networks (AREA)
Description
第１図は本考案の一実施例のデータ伝送システ
ムの要部構成ブロツク図、第２図は起動信号検出
回路の一例の回路図、第３図は第２図に示す回路
の各部の信号のタイムチヤート、第４図は第１図
に示すシステムの作動を説明するタイムチヤート
である。
（符号の説明）、１……第１伝送ライン、２…
…第２伝送ライン、３……基準ライン、１０，１
０′……ＥＣＵ、１１……第１の伝送端子、１２
……第２の伝送端子、１３……基準端子、１４…
…平衡伝送レシーバ、１５……平衡伝送トランス
ミツタ、１６，１７……ラインスイツチ、１８…
…起動信号検出回路、２０……ＲＳ、２１……受
信端子、２２……送信端子、２３……基準端子、
２４……ラインレシーバ、２５……ラインドライ
バ、２６……ラインスイツチ、２７……起動信号
検出回路、３０……ＭＳ、３１……第１の接続端
子、３２……第２の接続端子、３３……基準端子
、３４……平衡伝送トランスミツタ、３５……平
衡伝送レシーバ、３６……ラインドライバ、３７
……ラインレシーバ、４１……起動信号送出用ラ
インドライバ、３８，３９，４０，４２……ライ
ンスイツチ。５５，５６……フリツプフロツプ、
５９……アツプダウンカウンタ。
FIG. 1 is a block diagram of the main part of a data transmission system according to an embodiment of the present invention, FIG. 2 is a circuit diagram of an example of a starting signal detection circuit, and FIG. 3 is a diagram of signals in each part of the circuit shown in FIG. Time Chart FIG. 4 is a time chart explaining the operation of the system shown in FIG. 1. (Explanation of symbols), 1...first transmission line, 2...
...Second transmission line, 3...Reference line, 10,1
0'...ECU, 11...First transmission terminal, 12
...Second transmission terminal, 13...Reference terminal, 14...
...Balanced transmission receiver, 15...Balanced transmission transmitter, 16, 17... Line switch, 18...
...Start signal detection circuit, 20...RS, 21...Reception terminal, 22...Transmission terminal, 23...Reference terminal,
24... Line receiver, 25... Line driver, 26... Line switch, 27... Starting signal detection circuit, 30... MS, 31... First connection terminal, 32... Second connection terminal, 33 ... Reference terminal, 34 ... Balanced transmission transmitter, 35 ... Balanced transmission receiver, 36 ... Line driver, 37
... Line receiver, 41 ... Line driver for sending start signal, 38, 39, 40, 42 ... Line switch. 55, 56...flip flop,
59...Up-down counter.
Claims (1)
準ラインとを有する伝送ライン、 (b) 前記第１伝送ラインに接続される第１の伝
送端子と、前記第２伝送ラインに接続される第２
の伝送端子と、前記第１及び／又は第２伝送ライ
ンに乗せられる起動信号を検出しその起動信号か
らマスク時間を抽出しそのマスク時間の間は通信
機能をマスクする通信マスク手段と、前記基準ラ
インに接続される基準端子とを有する平衡伝送局
、 (c) 前記第１伝送ラインに接続される受信端子
と、前記第２伝送ラインに接続される送信端子と
、前記第１及び／又は第２伝送ラインに乗せられ
る起動信号を検出しその起動信号からマスク解除
時間を抽出しそのマスク解除時間の間以外は通信
機能をマスクする通信マスク手段と、前記基準ラ
インに接続される基準端子とを有する不平衡伝送
リモート局、 および、 (d) 前記第１伝送ラインに接続される第１の接
続端子と、前記第２伝送ラインに接続される第２
の接続端子と、前記マスク時間およびマスク解除
時間の情報を含んだ起動信号を前記第１及び／又
は第２伝送ラインに送出する起動信号送出手段と
、その起動信号送出後の所定期間に前記不平衡伝
送リモート局と不平衡伝送による通信を行う不平
衡伝送通信手段と、前記基準ラインに接続される
基準端子とを有する不平衡伝送マスタ局。 を具備してなることを特徴とするデータ伝送シス
テム。[Claims for Utility Model Registration] (a) a transmission line having a first transmission line, a second transmission line, and a reference line; (b) a first transmission terminal connected to the first transmission line; a second transmission line connected to the second transmission line;
a transmission terminal, a communication mask means for detecting an activation signal carried on the first and/or second transmission line, extracting a mask time from the activation signal, and masking the communication function during the mask time, and the reference (c) a receiving terminal connected to said first transmission line, a transmitting terminal connected to said second transmission line, and a balanced transmission station having a reference terminal connected to said first transmission line; 2. A communication mask means for detecting an activation signal carried on a transmission line, extracting a mask release time from the activation signal, and masking a communication function except during the mask release time, and a reference terminal connected to the reference line. and (d) a first connection terminal connected to the first transmission line and a second connection terminal connected to the second transmission line.
a connection terminal, a start signal sending means for sending out a start signal including information on the mask time and mask release time to the first and/or second transmission line, and a start signal sending means for sending out a start signal including information on the mask time and mask release time to the first and/or second transmission line; An unbalanced transmission master station comprising: unbalanced transmission communication means for communicating with a balanced transmission remote station by unbalanced transmission; and a reference terminal connected to the reference line. A data transmission system comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5897687U JPH0537565Y2 (en) | 1987-04-17 | 1987-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5897687U JPH0537565Y2 (en) | 1987-04-17 | 1987-04-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63165942U true JPS63165942U (en) | 1988-10-28 |
| JPH0537565Y2 JPH0537565Y2 (en) | 1993-09-22 |
Family
ID=30890040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5897687U Expired - Lifetime JPH0537565Y2 (en) | 1987-04-17 | 1987-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0537565Y2 (en) |
-
1987
- 1987-04-17 JP JP5897687U patent/JPH0537565Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0537565Y2 (en) | 1993-09-22 |
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