JPS62265860A - Transmission control system - Google Patents
Transmission control systemInfo
- Publication number
- JPS62265860A JPS62265860A JP61108404A JP10840486A JPS62265860A JP S62265860 A JPS62265860 A JP S62265860A JP 61108404 A JP61108404 A JP 61108404A JP 10840486 A JP10840486 A JP 10840486A JP S62265860 A JPS62265860 A JP S62265860A
- Authority
- JP
- Japan
- Prior art keywords
- training
- signal
- time
- circuit
- bps
- 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 23
- 238000000034 method Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Facsimile Transmission Control (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は伝送制御方式に係り、特にファクシミリ装置の
利用に轟り長距離回線を使用して情報の伝送を行なうの
に好適な伝送制御方式に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a transmission control system, and is particularly suitable for use in facsimile machines and suitable for transmitting information using long-distance lines. It is related to.
ファクシミリの伝送制御手順には、Ｇ３モード用バイナ
リ手順、ミニファックスモード用トーナル手順、６分モ
ード用トーナル手順等があシ、現在一般に使用されてい
る０３タイプのファクシミリはＨＤＬＣ（Ｈｌｇｈ Ｌ
ｅｖｅｌ Ｄａｔａ Ｌｉｎｋ Ｃｏｎｔｒｏｌ ）フ
レーム構成を用いておシ、ＣＣＩＴＴ勧告１”１Ｆａｓ
ｃｉｏｌｅ■、 ２−Ｒｅｃ、 Ｔ ３０ Ｊの第２７
７頁のバイナリ手順のフローダイアグラムにもあるよう
に、モード設定後７エーズＢにおいて送信局は、トレー
ニングチェック信号（ＴＣＰ）を送出したあと、トレー
ニング失敗信号（ＦＴＴ）を受信した場合には、送信モ
ードを再セットしてトレーニングチェック信号（ＴＣＰ
）を再送するように逢っている。The facsimile transmission control procedure includes a binary procedure for G3 mode, a tonal procedure for mini fax mode, a tonal procedure for 6-minute mode, etc. The 03 type facsimile currently in general use uses HDLC (Hlgh L
CCITT Recommendation 1”1Fas
ciole■, 2-Rec, 27th of T 30 J
As shown in the flow diagram of the binary procedure on page 7, after setting the mode, the transmitting station transmits the training check signal (TCP) and then, if it receives the training failure signal (FTT), transmits the Reset the mode and use the training check signal (TCP)
) is being met to resend.
前述したようにＣＣＩＴＴ勧告１”Ｔ３０Ｊに基づくバ
イナリ手順に従えば、まずモード設定し、ディジタル命
令信号（ＤＯ３）を送出後、トレーニングチェック信号
（ＴＣＰ）を送出し、受信機側より受信準備確認信号（
ＣＦＲ）がないと再びモード設定し別のモードで再トラ
イし、同様に受信機側よシ受信準備確認信号（ＣＦＲ）
がないと同じことを５回まで試行したら回線切断命令信
号（ＤＣＮ）を出して回線を切断と云う手順をふむため
、最適モードが決定されるまでに伝送制御時間が長くな
ると云う欠点がある。As mentioned above, if you follow the binary procedure based on CCITT Recommendation 1"T30J, you first set the mode, send a digital command signal (DO3), then send a training check signal (TCP), and then receive a reception readiness confirmation signal from the receiver side. (
If there is no CFR), set the mode again and try again in a different mode, and in the same way, the receiver sends a reception readiness confirmation signal (CFR).
If there is no one, a procedure is required to issue a line disconnection command signal (DCN) and disconnect the line after trying the same thing up to five times, which has the disadvantage that it takes a long time to control the transmission until the optimum mode is determined.
本発明は国際電話回線などの長距離通信において特に発
生しやすい制御時間の短縮を図ることを目的とするもの
である。An object of the present invention is to reduce control time, which is particularly likely to occur in long-distance communications such as international telephone lines.
本発明は、上記目的を達成するために、ファクシミリ装
置に、例えば国際ダイアル番号［０，ＯＪを識別する手
段と局番識別手当とを設け、長距離通信であることを確
認したら、伝送速度を高速モードに切替えることによシ
通信回線毎に伝送制御方式を最適化させるものである。In order to achieve the above object, the present invention provides a facsimile device with a means for identifying, for example, an international dial number [0, OJ] and an area number identification allowance, and when long distance communication is confirmed, the transmission speed is increased. By switching to this mode, the transmission control method is optimized for each communication line.
本発明における伝送制御方式では、第２図に示すＣＣＩ
ＴＴ勧告Ｔ３勧告単３０たＧ３ファクシミリの伝送手順
に示すように５発呼局の送信機よｐダイアル発信後、発
呼トーン信号（ＣＮＧ）を相手被呼ファクシミリ受信機
へ送出と、被呼ファクシーディジタル識別信号（ＤＩＳ
）を７アクシミリ送信機に対して応答し、ファクシミリ
送信機は、モード設定後ファクシミリ受信機に対しディ
ジタル命令信号（ＤＯ８）とトレーニングチェック信号
（ＴＣＰ）を送出し、ファクシミリ受信機はトレーニン
グ結果が良好であれば、受信準備確認信釈ＣＦＲ）を発
呼ファクシミリ送信機に対し応答し、不良であればトレ
ーニング失敗信号（ＦＴＴ）を同様送信機に対し応答す
るが、例えば伝送速度が９６００ＢＰＳからスタートし
て７２００８ＰＳを経て４８ｏＯＢＰｓまで再トレーニ
ングを繰シ返した場合、２回分のトレーニングチェック
時間が余計にかかるため、長距離回線のように、あらか
じめ良好な回線状態が期待できない場合には、例えば伝
送速度を４８００ＢＰＳとしてトレーニングチェックを
スタートすることで、２回のトレーニングチェック時間
を必要とせずに伝送を開始し得るので回線使用時間を節
約できる。In the transmission control method according to the present invention, the CCI shown in FIG.
As shown in the G3 facsimile transmission procedure based on the TT Recommendation T3 Recommendation A30, the transmitter of the calling station sends a p-dial, sends a calling tone signal (CNG) to the called facsimile receiver, and then sends the called tone signal (CNG) to the called facsimile receiver. Sea Digital Identification Signal (DIS)
) to the 7-axis transmitter, the facsimile transmitter sends a digital command signal (DO8) and a training check signal (TCP) to the facsimile receiver after setting the mode, and the facsimile receiver indicates that the training result is good. If so, a reception readiness confirmation signal (CFR) will be responded to the calling facsimile transmitter, and if it is defective, a training failure signal (FTT) will be responded to the transmitter as well. For example, if the transmission speed starts from 9600 BPS If you repeat retraining to 48oOBPs via 72008PS, it will take two additional training check times. By starting the training check at 4800 BPS, transmission can be started without the need for two training checks, so line usage time can be saved.
第１図に前記した目的ならびに作用を実行するファクシ
ミリ装置のプコック図を示す。自動発信機能付の７アク
シミ＋７装置は、信号送出器２、信号受信器５、ダイア
ル番号メモリ３およびこれらを制御する通信制御手段１
によシ構成されている。FIG. 1 shows a diagram of a facsimile machine which performs the purposes and functions described above. The 7Axismi+7 device with an automatic call function includes a signal transmitter 2, a signal receiver 5, a dial number memory 3, and a communication control means 1 for controlling these.
It is composed of
発呼時、ダイアル番号は、ダイアル番号メモリから読み
出され、前記通信制御手段１により信号送出器２から通
信回線６へ送出され図示してない交換機を介して被呼フ
ァクシミリ受信機呼出信号として送出される。その時フ
ァクシミリ装置に内蔵した局番識別器４は、長距離通信
か否かを判別し、通信制御手段１はその結果をもって伝
送速度を４８００ＢＰＳ、７２００ＢＰＳ、９６００Ｂ
ＰＳより選択し、伝送制御方式の切替えを予じめ回線の
質を予測して回線に応じた伝送速度に切替でトレーニン
グチェック信号を伝送し、初回でのトレーニング結果で
のトレーニング失敗率を低下させるようにする。When a call is made, the dialed number is read from the dialed number memory, and is sent by the communication control means 1 from the signal transmitter 2 to the communication line 6, and sent as a paging signal to the called facsimile receiver via an exchange (not shown). be done. At that time, the station number discriminator 4 built into the facsimile machine determines whether or not it is a long distance communication, and the communication control means 1 uses the result to set the transmission speed to 4800 BPS, 7200 BPS, 9600 BPS.
Select from PS, predict the quality of the line in advance, and transmit the training check signal by switching the transmission control method to the transmission speed according to the line, reducing the training failure rate in the first training result. Do it like this.
本発明の方式実施に当ってはダイアル送信機能に局番識
別器を設けるだけで容易に実現できる。The system of the present invention can be easily implemented by simply providing a station number identifier in the dial transmission function.
本発明によれば、通信回線に応じて最適通信モードを自
動的に切替えられるので、回線の使用時間が短縮され、
利用者に対するサービス性と操作性が向上する。According to the present invention, since the optimum communication mode can be automatically switched depending on the communication line, the line usage time is shortened,
Improved serviceability and operability for users.
第１図は本発明の伝送制御方式を実施するためのファク
シミリ装置の要部の構成図、第２図はＧ３ファクシミリ
伝送手顆の説明図である。
１・・・通信制御手段
２・・・信号送出器
３・・・ダイアル番号メモリ
４・・・局番識別器
５・・・信号受信器
６・・・通信回線。FIG. 1 is a block diagram of the main parts of a facsimile machine for implementing the transmission control method of the present invention, and FIG. 2 is an explanatory diagram of a G3 facsimile transmission hand. 1...Communication control means 2...Signal transmitter 3...Dial number memory 4...Station number identifier 5...Signal receiver 6...Communication line.
Claims (1)
ダイアル番号記憶手段と発呼局番識別手段とを備え、特
定地域へのダイアル発信時に、バイナリ手順の実行に当
り伝送速度を予じめ回線回質に応じた伝送速度に切替え
てからトレーニングを行なうようにしたことを特徴とす
る伝送制御方式。1. In a facsimile machine equipped with an automatic dialing function,
It is equipped with a dial number storage means and a calling station number identification means, and when dialing to a specific area, the transmission speed is switched in advance to a transmission speed according to the line quality before executing the binary procedure, and then training is performed. A transmission control method characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61108404A JPS62265860A (en) | 1986-05-14 | 1986-05-14 | Transmission control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61108404A JPS62265860A (en) | 1986-05-14 | 1986-05-14 | Transmission control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62265860A true JPS62265860A (en) | 1987-11-18 |
Family
ID=14483894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61108404A Pending JPS62265860A (en) | 1986-05-14 | 1986-05-14 | Transmission control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62265860A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5101428A (en) * | 1990-03-14 | 1992-03-31 | Fuji Xerox Co. Ltd. | Line control system adapted for a facsimile machine for detecting a busy telephone signal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59131264A (en) * | 1983-01-17 | 1984-07-28 | Nec Corp | Facsimile controller |
| JPS62131665A (en) * | 1985-12-03 | 1987-06-13 | Ricoh Co Ltd | Facsimile communication control system |
-
1986
- 1986-05-14 JP JP61108404A patent/JPS62265860A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59131264A (en) * | 1983-01-17 | 1984-07-28 | Nec Corp | Facsimile controller |
| JPS62131665A (en) * | 1985-12-03 | 1987-06-13 | Ricoh Co Ltd | Facsimile communication control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5101428A (en) * | 1990-03-14 | 1992-03-31 | Fuji Xerox Co. Ltd. | Line control system adapted for a facsimile machine for detecting a busy telephone signal |
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