JPH01228352A - Data transmission equipment - Google Patents
Data transmission equipmentInfo
- Publication number
- JPH01228352A JPH01228352A JP63053785A JP5378588A JPH01228352A JP H01228352 A JPH01228352 A JP H01228352A JP 63053785 A JP63053785 A JP 63053785A JP 5378588 A JP5378588 A JP 5378588A JP H01228352 A JPH01228352 A JP H01228352A
- Authority
- JP
- Japan
- Prior art keywords
- data transmission
- data
- transmission
- transmission speed
- transmission rate
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 175
- 238000004891 communication Methods 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Communication Control (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はデータ伝送装置に係り１．特に複数個のデータ
伝送速度の設定が可能なデータ伝送装置において、デー
タ送信元とデータ送信先のデータ伝送速度を合致させる
に好適なデータ伝送装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data transmission device.1. In particular, the present invention relates to a data transmission device that is capable of setting a plurality of data transmission speeds and is suitable for matching the data transmission speeds of a data transmission source and a data transmission destination.
この種の装置としては、例えば特開昭６１−１８９０５
０号公報に記載されたものがある。As this type of device, for example, Japanese Patent Application Laid-Open No. 61-18905
There is one described in Publication No. 0.
この従来の技術は、異なる複数の転送速度のうちの一つ
の転送速度で二つの装置間のデータ転送を行なうに当り
、上記装置のうちデータ送信゛を行なう装置は、データ
転送に先行してデータ転送先装置に送信要求信号を送出
する第１の信号送出手段と、この送出要求信号の送出時
刻から上記データ転送装置からの送信可能信号を受信す
るまでの経過時間を計時する第１の計時手段と、この計
時手段で計時された時間値に基づいて自装置の転送速度
の一つを選択する手段とを備え、上記装置のうちデータ
受信を行なう装置は、データ転送元からの送信信号の受
信時刻からの経過時間が自装置の転送速度に対応する時
間に達した時に出力を逆出する第２の計時手段と、この
計時手段の出力に基づいて送信可能信号を上記データ転
送元に送出する第２の信号送出手段とを備えたものであ
る。In this conventional technology, when data is transferred between two devices at one of a plurality of different transfer speeds, the device that performs data transmission among the devices transfers the data prior to the data transfer. a first signal sending means for sending a transmission request signal to the transfer destination device; and a first clocking means for measuring the elapsed time from the sending time of the sending request signal until receiving the transmission enable signal from the data transfer device. and means for selecting one of the transfer speeds of the own device based on the time value measured by the clocking means, and among the above devices, the device that receives data receives the transmission signal from the data transfer source. a second timer for outputting an output in reverse when the elapsed time reaches a time corresponding to the transfer speed of the own device; and a second timer for outputting an output in reverse when the elapsed time reaches a time corresponding to the transfer speed of the device itself, and a transmitting enable signal is sent to the data transfer source based on the output of the timer. and second signal sending means.
上記従来技術は通信制御装置をデータ伝送装置間のデー
タ伝送速度を一致させるためのものであり、電話回線を
通したデータ送信先装置のデータ伝送速度を一致させる
点については何ら配慮がされておらず、従ってデータ送
信元と送信先のデータ伝送速度を手動で設定する必要が
あり、データ伝送速度の設定が効率的に行えない問題が
あった。The above conventional technology is for matching the data transmission speed between the communication control device and the data transmission device, and no consideration is given to matching the data transmission speed of the data transmission destination device through the telephone line. Therefore, it is necessary to manually set the data transmission speed of the data transmission source and the data transmission destination, and there is a problem that the data transmission speed cannot be set efficiently.
本発明は上記問題点を除去するためにデータ伝送装置間
のデータ伝送速度をデータ送信元装置から伝送速度符号
をデータ送信先装置に送出し、データ送信先装置のデー
タ伝送速度を設定させ折り返しそのデータ伝送速度に基
づいた伝送速度符号を受信照合することにより、データ
送信先装置のデータ伝送速度を一致させるとともに設定
完了をＬ２識できるようにしたことを目的とするもので
ある。In order to eliminate the above-mentioned problems, the present invention determines the data transmission speed between data transmission devices by sending a transmission speed code from the data transmission source device to the data transmission destination device, setting the data transmission speed of the data transmission destination device, and returning the data transmission rate. The purpose of this method is to match the data transmission speeds of the data transmission destination devices and to identify the completion of setting at L2 by receiving and verifying the transmission speed code based on the data transmission speed.
上記本発明の目的はデータ送信を行なう装置はデータ送
信に先行して送信先装置に自装置に前もって設定されて
いるデータ伝送速度に基づいた伝送速度符号を送出する
手段と、上記送信先装置から受信した伝送速度符号に基
づいたデータ伝送速度と自装置に設定されている該デー
タ伝送速度を照合する手段とを備え、上記装置のうちデ
ータ受信を行なう装置はデータ送信元からの伝送速度符
号を受信する手段と、この受信手段により得られた伝送
速度符号に基づいたデータ伝送速度を自装置のデータ伝
送速度の一つから選択し設定する手段と、この手段によ
り選択されたデータ伝送速度に基づいた伝送速度符号を
データ送信元へ折り返し送出する手段とを備えたことに
より達成される。The object of the present invention is to provide a device for transmitting data that includes means for transmitting a transmission rate code based on a data transmission rate previously set in the destination device to the destination device prior to data transmission; A device that receives data among the devices described above is equipped with means for comparing the data transmission rate based on the received transmission rate code with the data transmission rate set in the own device, and the device that receives data among the devices described above is configured to check the data transmission rate based on the data transmission rate code from the data source. means for receiving, means for selecting and setting a data transmission rate based on the transmission rate code obtained by the receiving means from one of the data transmission rates of the own device, and a means for selecting and setting a data transmission rate based on the data transmission rate selected by the means. This is achieved by providing means for returning the transmitted transmission rate code to the data transmission source.
本発明のデータ伝送装置はデータ伝送に先立ってデータ
送信元のデータ伝送装置は、データ送信先のデータ伝送
装置に対し自装置のデータ伝送速度に基づき伝送速度符
号を生成し送出する。データ送信先のデータ伝送装置は
該伝送速度符号を受信しその結果に基づき自装置のデー
タ伝送速度の一つを選択すると共に１選択されたデータ
伝送速度に対応した伝送速度符号を生成しデータ送信先
のデータ伝送装置に折り返し送出する。それによってデ
ータ送信元のデータ伝送装置はデータ送信先のデータ伝
送装置より折り返されて来た伝送速度符号に基づいたデ
ータ伝送速度と自装置のデータ伝送速度を照合し判定す
る事により、データ送信先のデータ伝送装置に正しいデ
ータ伝送速度が設定されたことが認識できるようになる
ので誤動作することがない。In the data transmission device of the present invention, prior to data transmission, the data transmission device that is the data transmission source generates and sends a transmission rate code to the data transmission device that is the data destination based on its own data transmission rate. The data transmission device at the data destination receives the transmission speed code, selects one of its own data transmission speeds based on the result, generates a transmission speed code corresponding to the selected data transmission speed, and transmits the data. It is sent back to the destination data transmission device. As a result, the data transmission device of the data transmission source compares and determines the data transmission speed based on the transmission speed code returned from the data transmission device of the data transmission destination with the data transmission speed of the data transmission device itself. Since it can be recognized that the correct data transmission speed has been set for the data transmission device, malfunctions will not occur.
実施例について図面を参照して説明する。 Examples will be described with reference to the drawings.
本実施例は、第１図に示すように通信制御装置１Ａおよ
びＩＢとデータ伝送装置２Ａおよび２Ｂと、その四つの
装置を接続する送信要求信号線１０１、送信可信号線１
０２．送信データ線１０３．送信回線１０４．受信回線
１０５．受信データ線１０６．キャリア検出信号線１０
７とを備える。In this embodiment, as shown in FIG.
02. Transmission data line 103. Transmission line 104. Receiving line 105. Receive data line 106. Carrier detection signal line 10
7.
データ伝送装置２Ａには通信制御装置ＩＡよりデータ伝
送に先立ち送信要求信号が送信要求信号線１０１に送ら
れて来ることにより、自装置に前もって設定されている
データ伝送速度に基づいた伝送速度符号をトレーニング
信号に付与し送信回線１０４に送出する手段と、データ
伝送装置２Ｂには、この伝送速度符号を付与されたトレ
ーニング信号を受信し伝送速度符号に基づいたデータ伝
送速度に自装置を設定し、そのデータ伝送速度に基づい
た伝送速度符号をトレーニング信号に付与し受信口、＠
１０５に折り返し送出し、キャリア検出信号をキャリア
検出信号線１０７に送出する手段と、データ伝送装置２
Ａには、この折り返されて来た伝送速度符号を付与され
たトレーニング信号を受信し、その伝送速度符号に基づ
いたデータ伝送速度と自装置に前もって設定されている
該データ伝送速度とを照合し、送信可信号を送信可信号
線１０２に送出する手段とを備え、また通信制御装置Ｉ
Ａとデータ伝送袋ｗ２Ａおよび通信制御装置ＩＢとデー
タ伝送装置２Ｂには、この設定されたデータ伝送速度で
送信データ線１０３及び受信データ線１０６を介してデ
ータの送受を行なう手段を備える。Prior to data transmission, a transmission request signal is sent to the data transmission device 2A from the communication control device IA to the transmission request signal line 101, so that the data transmission device 2A receives a transmission rate code based on the data transmission rate preset in the device itself. The means for adding the training signal to the transmission line 104 and the data transmission device 2B receive the training signal to which the transmission speed code is added and set the own device to a data transmission speed based on the transmission speed code, A transmission rate code based on the data transmission rate is attached to the training signal, and the @
105 and transmits the carrier detection signal to the carrier detection signal line 107; and a data transmission device 2.
A receives the returned training signal with the transmission rate code, and compares the data transmission rate based on the transmission rate code with the data transmission rate preset in its own device. , means for sending a transmittable signal to the transmittable signal line 102, and a communication control device I
A, the data transmission bag w2A, the communication control device IB, and the data transmission device 2B are provided with means for transmitting and receiving data via the transmission data line 103 and the reception data line 106 at the set data transmission rate.
次に、本実施例の動作の説明を行なう。Next, the operation of this embodiment will be explained.
データ伝送袋［２Ａは第２図に示すように通信制御装置
ＩＡよりデータ伝送に先立ち送出されて来る送信要求信
号を送信要求信号線１０１を介して受信すると、前もっ
て自装置に設定されているデータ伝送速度に基づいた伝
送速度符号Ｓをトレーニング信号ＴＲに付与し、送信回
線１０４を介してデータ伝送袋ｆｆ１２Ｂへ送出する。As shown in FIG. 2, when the data transmission bag [2A receives the transmission request signal sent from the communication control device IA via the transmission request signal line 101 prior to data transmission, the data transmission bag 2A receives the data set in advance in its own device. A transmission rate code S based on the transmission rate is given to the training signal TR, and the training signal TR is sent to the data transmission bag ff12B via the transmission line 104.
データ伝送袋Ｗ１２はこの伝送速度符号Ｓを付与された
トレーニング信号ＴＲを受信すると、伝送速度符号Ｓに
基づいたデータ伝送速度に自装置を設定すると共に等化
特性の調整を行なう、さらに設定されたデータ伝送速度
に基づいた伝送速度符号Ｓをトレーニング信号ＴＲに付
与し、受信回線１０５を介してデータ伝送装置２へ折り
返し送出し、キャリア検出信号をキャリア検出信号線１
０７を介して通信制御装置ＩＡに送出する。When the data transmission bag W12 receives the training signal TR given the transmission rate code S, it sets its own device to the data transmission rate based on the transmission rate code S, and also adjusts the equalization characteristics. A transmission rate code S based on the data transmission rate is given to the training signal TR, and the training signal TR is sent back to the data transmission device 2 via the reception line 105, and the carrier detection signal is transmitted to the carrier detection signal line 1.
07 to the communication control device IA.
データ伝送装置２は、この返送された伝送速度符号Ｓを
付与されたトレーニング信号ＴＲを受信すると、その伝
送速度符号Ｓに基づいたデータ伝送速度と自装置に前も
って設定されている該データ伝送速度とを照合すると共
に等化特性の調整を行なう、なお、照合した結果が一致
している場合には送信可信号を送信可信号線１０２を介
して通信制御装置ＩＡへ送出する。データ伝送装置２は
通信制御装置！ＩＡから送信データ線１０３を介して送
信データを受信し変調し、送信可ｖＡ１０４を介してデ
ータ伝送装置２Ｂへ送出される。照合した結果が不一致
の場合には、自装置に前もって設定されているデータ伝
送速度に基づき伝送速度符号Ｓをトレーニング信号ＴＲ
に付与し、送信回線１０４を介してデータ伝送装置２Ｂ
へ再送する。When the data transmission device 2 receives the training signal TR given the returned transmission rate code S, the data transmission device 2 sets the data transmission rate based on the transmission rate code S and the data transmission rate preset in the own device. If the comparison results match, a transmittable signal is sent to the communication control device IA via the transmittable signal line 102. Data transmission device 2 is a communication control device! Transmission data is received from the IA via the transmission data line 103, modulated, and sent to the data transmission device 2B via the transmission enabled vA 104. If the comparison results do not match, the transmission rate code S is sent to the training signal TR based on the data transmission rate set in advance in the own device.
and the data transmission device 2B via the transmission line 104.
Resend to.
本発明は以上説明したように構成されているので、デー
タ伝送においてデータ送信元のデータ伝送装置のデータ
伝送速度に基づいた伝送速度符号をトレーニング信号に
付与し、データ送信先のデータ伝送装置にデータ伝送速
度を通知し、設定かれた結果をデータ送信元に返送させ
ることにより情報を授受する装置間のデータ伝送速度を
確実に一致させることができるので、データ伝送におけ
る信頼性を向上させる効果がある。Since the present invention is configured as described above, in data transmission, a transmission speed code based on the data transmission speed of the data transmission device that is the data transmission source is given to the training signal, and the data is transmitted to the data transmission device that is the data transmission destination. By notifying the transmission speed and sending the set result back to the data source, it is possible to reliably match the data transmission speed between the devices exchanging information, which has the effect of improving reliability in data transmission. .
第１図および第２図はいずれも本発明の一実施例を示す
もので第１図は装置構成を示すブロック図、第２図は動
作説明用の波形図である。
ＬＡ、ＩＢ・・・通信制御装置、２Ａ、２Ｂ・・・デー
タ伝送装置、１０１・・・送信要求信号線、１０２・・
・送信可信号線、１０３・・・送信データ線、１０４・
・・送信回線。
１０５・・・受信回線、１０６・・・受信データ線、１
０７・・・キャリア検出信号線。
特許出願人 日立湘南電子株式会社
代理人弁理士 秋 本 正 実（外１名）第 ２７
１０’７ ２］ヨ。Both FIG. 1 and FIG. 2 show an embodiment of the present invention, with FIG. 1 being a block diagram showing the configuration of the device, and FIG. 2 being a waveform diagram for explaining the operation. LA, IB... Communication control device, 2A, 2B... Data transmission device, 101... Transmission request signal line, 102...
・Send enable signal line, 103...Send data line, 104・
...Transmission line. 105...Reception line, 106...Reception data line, 1
07...Carrier detection signal line. Patent Applicant Hitachi Shonan Electronics Co., Ltd. Representative Patent Attorney Masami Akimoto (1 other person) No. 27 10'7 2] Yo.
Claims (1)
伝送速度の設定が可能な二つのデータ伝送装置間で、一
つのデータ伝送速度で行なうデータ伝送装置において、
データ送信を行なう装置はデータ送信に先行して送信先
装置に自装置に前もって設定されているデータ伝送速度
に基づいた伝送速度符号を送出する手段と、上記送信先
装置から受信した伝送速度符号に基づいたデータ伝送速
度と自装置に設定されている該データ伝送速度を照合す
る手段とを備え、上記装置のうちデータ受信を行なう装
置はデータ送信先からの伝送速度符号を受信する手段と
、この受信手段により得られた伝送速度符号に基づいた
データ伝送速度を自装置のデータ伝送速度の一つから選
択し設定する手段と、この手段により選択されたデータ
伝送速度に基づいた伝送速度符号をデータ送信元へ折り
返し送出する手段とを備えたことを特徴とするデータ伝
送装置。1. In a data transmission device that transmits data at a single data transmission speed between two data transmission devices that can set multiple data transmission speeds through a telephone line,
A device that transmits data includes means for transmitting a transmission rate code based on a data transmission rate preset in the device to the destination device prior to data transmission, and a means for transmitting a transmission rate code based on the data transmission rate preset in the device itself, and Among the above-mentioned devices, the device that receives data includes a means for receiving a transmission speed code from a data transmission destination, and means for selecting and setting a data transmission rate based on the transmission rate code obtained by the receiving means from one of the data transmission rates of the own device; What is claimed is: 1. A data transmission device characterized by comprising means for returning transmission to a transmission source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63053785A JPH01228352A (en) | 1988-03-09 | 1988-03-09 | Data transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63053785A JPH01228352A (en) | 1988-03-09 | 1988-03-09 | Data transmission equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01228352A true JPH01228352A (en) | 1989-09-12 |
Family
ID=12952473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63053785A Pending JPH01228352A (en) | 1988-03-09 | 1988-03-09 | Data transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01228352A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299409A (en) * | 2014-11-07 | 2015-01-21 | 四川慧盈科技有限责任公司 | Automatic management device for residential electricity consumption data |
-
1988
- 1988-03-09 JP JP63053785A patent/JPH01228352A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299409A (en) * | 2014-11-07 | 2015-01-21 | 四川慧盈科技有限责任公司 | Automatic management device for residential electricity consumption data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4110558A (en) | Data transmission system | |
| HK1024362A1 (en) | Method and apparatus for determining the rate of received data in a variable rate communication system | |
| CA2210360A1 (en) | Method and apparatus for collapsing tcp acks on asymmetrical connections | |
| WO2002082282A1 (en) | Transmission method and transmitter | |
| JPH01228352A (en) | Data transmission equipment | |
| JPS627239A (en) | Setting system for data transmission rate | |
| JPH11177538A (en) | Data transmission system | |
| US5003582A (en) | Method of adjusting the end of transmission in a modem | |
| JP2552646B2 (en) | Data transmission method | |
| JPS62299148A (en) | Matching system for transmission speed | |
| EP1115210A4 (en) | Packet communication device and transmission power control method | |
| JPH06205009A (en) | Data communication network and its method | |
| JPS59127450A (en) | Transmission control system | |
| JPH01208928A (en) | Communication system | |
| JPS61240735A (en) | Line control diagnostic system | |
| JPH04307838A (en) | Data transmission/reception method | |
| JPS61189052A (en) | Data transferring system | |
| JP2000068987A (en) | Data transmitter-receiver | |
| JPH07271530A (en) | Data transmission/reception system | |
| JPS60117846A (en) | Data transmission system | |
| JPH0355954A (en) | Data modulator-demodulator | |
| JPH01228042A (en) | Information transmitting procedure converter | |
| JPH0449431A (en) | Interface circuit with testing function | |
| JPS63133727A (en) | Data retransmission system | |
| JPS63257358A (en) | Test control circuit |