JPH07264375A - Facsimile communication method - Google Patents
Facsimile communication methodInfo
- Publication number
- JPH07264375A JPH07264375A JP7067751A JP6775195A JPH07264375A JP H07264375 A JPH07264375 A JP H07264375A JP 7067751 A JP7067751 A JP 7067751A JP 6775195 A JP6775195 A JP 6775195A JP H07264375 A JPH07264375 A JP H07264375A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- communication
- echo suppressor
- line
- facsimile
- 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
Landscapes
- Facsimile Transmission Control (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、全二重通信方式で送信
側が受信側にコマンド信号を送信しながら受信側からの
レスポンス信号を受信するファクシミリ通信方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile communication method in which a transmitting side transmits a command signal to a receiving side while receiving a response signal from the receiving side in a full-duplex communication system.
【０００２】[0002]
【従来の技術】従来この種のファクシミリ装置は、エコ
ーサプレッサが設定されていない全二重通信の可能な回
線でのみ用いられている。その信号シーケンスを図２を
参照して説明する。2. Description of the Related Art Conventionally, this type of facsimile apparatus is used only in a line capable of full-duplex communication in which an echo suppressor is not set. The signal sequence will be described with reference to FIG.
【０００３】まず、受信側が着信を検出すると回線に接
続され、送信側に対し被呼局識別信号１を送出する。こ
れに対し、送信側は送信ボタンが押されると回線に接続
され、受信側に位相信号２を送出する。この場合には回
線は全二重通信可能であるために、受信側は位相信号２
を受信しながら位相ＯＫ信号３を送信側に送出する。First, when the receiving side detects an incoming call, it is connected to the line and sends the called station identification signal 1 to the transmitting side. On the other hand, when the transmission button is pressed, the transmission side is connected to the line and sends the phase signal 2 to the reception side. In this case, since the line is capable of full-duplex communication, the receiving side receives the phase signal 2
The phase OK signal 3 is sent to the transmitting side while receiving the signal.
【０００４】以後、送信側が受信側に画信号４を送出し
た後ページ終了信号５を送出すると、送信側は受信側に
受信確認信号６を送出する。After that, when the transmitting side transmits the image signal 4 to the receiving side and then transmits the page end signal 5, the transmitting side transmits the reception confirmation signal 6 to the receiving side.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、かかる
通信方法にあっては、衛星通信回線のようにエコーサプ
レッサが設置された回線で用いられた場合には、送信側
が位相信号を送信すると交換機のエコーサプレッサが回
線上の信号を検出して反対方向の信号の流れを止める働
きをするために、送信側は受信側からの位相ＯＫ信号３
を検出できず、したがって、以後の画信号４、ページ終
了信号５及び受信確認信号６の通信を行うことができな
いという問題点がある。However, in such a communication method, when it is used in a line in which an echo suppressor is installed, such as a satellite communication line, when the transmitting side transmits a phase signal, the echo of the exchange is transmitted. In order for the suppressor to detect the signal on the line and stop the flow of the signal in the opposite direction, the transmitting side has the phase OK signal 3 from the receiving side.
Therefore, there is a problem that the subsequent image signal 4, page end signal 5 and reception confirmation signal 6 cannot be communicated.
【０００６】本発明は、上述の問題点に鑑みて為された
もので、エコーサプレッサが設置された衛星通信回線に
おいてもファクシミリ通信を行うことができる方法を提
供することを目的とする。The present invention has been made in view of the above problems, and an object thereof is to provide a method capable of performing facsimile communication even in a satellite communication line in which an echo suppressor is installed.
【０００７】[0007]
【課題を解決するための手段】本発明は上述の問題点を
解決するために、エコーサプレッサが設定れた通信回線
を用いてファクシミリ通信を行うファクシミリ通信方法
において、送信側ファクシミリ装置からエコーサプレッ
サディセーブル信号を送出することにより、前記通信回
線を全二重通信モードとして通信手段を実行し、送信側
ファクシミリ装置からエコーサプレッサイネーブル信号
を送出することにより、前記通信回線を半二重通信モー
ドとして画信号を送出するようにしたことを特徴とす
る。SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a facsimile communication method for performing facsimile communication using a communication line in which an echo suppressor is set. By transmitting the disable signal, the communication means is set to the full-duplex communication mode to execute the communication means, and by transmitting the echo suppressor enable signal from the transmitting facsimile machine, the communication line is set to the half-duplex communication mode. It is characterized in that a signal is transmitted.
【０００８】[0008]
【作用】本発明は、上記構成により、通信手順信号の送
出以前に回線のエコーサプレッサがディセーブルされる
ために回線は全二重通信モードとなり、送信側は通信手
順信号の送出中または送出直後に受信側からのレスポン
ス信号を受信することができ、また、画信号の送出以前
に回線のエコーサプレッサがイネーブルされるために回
線の全二重通信状態は解除され、回線を半二重通信モー
ドとすることができ、エコーによる歪を防止することが
できる。According to the present invention, with the above configuration, the echo suppressor of the line is disabled before the transmission of the communication procedure signal, so that the line is in the full-duplex communication mode, and the transmitting side is transmitting or immediately after transmitting the communication procedure signal. Can receive the response signal from the receiving side, and because the echo suppressor of the line is enabled before sending the image signal, the full-duplex communication state of the line is released and the line is set to half-duplex communication mode. Therefore, distortion due to echo can be prevented.
【０００９】[0009]
【実施例】以下、図面を参照して本発明の実施例を説明
する。図１は本発明に係るファクシミリ通信方法の一実
施例を示す信号シーケンス図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a signal sequence diagram showing an embodiment of a facsimile communication method according to the present invention.
【００１０】まず、受信側が着信を検出すると回線に接
続され、送信側に対し被呼局識別信号１１を送出する。
これに対し、送信側は送信ボタンが押されると回線に接
続され、受信側にエコーサプレッサディセーブルトーン
信号１２を送出した後位相信号１３を送出する。First, when the receiving side detects an incoming call, the receiving side is connected to the line and sends the called station identification signal 11 to the transmitting side.
On the other hand, when the transmission button is pressed, the transmission side is connected to the line and transmits the echo suppressor disable tone signal 12 and then the phase signal 13 to the reception side.
【００１１】ここで、回線が衛星通信回線のようにエコ
ーサプレッサが設定されている場合にもエコーサプレッ
サはディセーブルトーン信号１２によりディセーブルさ
れるために回線は全二重通信可能となり、受信側が位相
信号１３を受信しながら位相ＯＫ信号１４を送信側に送
出しても送信側はこの位相ＯＫ信号１４を受信すること
ができる。Here, even when the echo suppressor is set as in the case of the satellite communication line, the echo suppressor is disabled by the disable tone signal 12, so that the line becomes capable of full-duplex communication and the receiving side Even if the phase OK signal 14 is sent to the transmitting side while receiving the phase signal 13, the transmitting side can receive the phase OK signal 14.
【００１２】送信側は位相ＯＫ信号１４を受信すると、
エコーサプレッサイネーブル信号（無信号）１５を送出
し、上記のエコーサプレッサディセーブルを解除する。
したがって、回線はこの無信号１５により半二重通信状
態となり、送信側が次に画信号１６を送出しても、エコ
ーによる波形歪を防止することができる。When the transmitting side receives the phase OK signal 14,
An echo suppressor enable signal (no signal) 15 is sent to release the echo suppressor disable.
Therefore, the line becomes a half-duplex communication state due to this no signal 15, and even if the transmitting side next sends the image signal 16, the waveform distortion due to the echo can be prevented.
【００１３】次いで、送信側は受信側に画信号１６を送
出した後ページ終了信号１７を送出し、受信側からの受
信確認信号１８を待つ。ここで、回線はページ終了信号
１７の後が無信号であるために、受信側から受信確認信
号１８が送出されると信号が受信側から送信側に流れる
ようにエコーサプレッサが働き、通信が正常に終了す
る。Next, the transmitting side transmits the image signal 16 to the receiving side, then transmits the page end signal 17, and waits for the reception confirmation signal 18 from the receiving side. Here, since the line has no signal after the page end signal 17, when the reception confirmation signal 18 is sent from the reception side, the echo suppressor works so that the signal flows from the reception side to the transmission side, and communication is normal. To end.
【００１４】尚、エコーサプレッサイネーブル信号１５
送出後の画信号１６の送出について説明すると、画信号
１６がエコーサプレッサディセーブルトーン信号１２と
同様に動作する場合がある。この場合にはエコーサプレ
ッサイネーブル信号１５を省略して送信しないか、或い
は画信号１６をエコーサプレッサディセーブルトーン信
号１２と異なる周波数で送信すればよい。The echo suppressor enable signal 15
The transmission of the image signal 16 after the transmission will be described. The image signal 16 may operate similarly to the echo suppressor disable tone signal 12. In this case, the echo suppressor enable signal 15 may be omitted and not transmitted, or the image signal 16 may be transmitted at a frequency different from that of the echo suppressor disable tone signal 12.
【００１５】[0015]
【発明の効果】以上説明したように本発明は、通信手順
信号の送出以前に回線のエコーサプレッサがディセーブ
ルされるために回線は全二重通信モードとなり、送信側
は通信手順信号の送出中または送出直後に受信側からの
レスポンス信号を受信することができ、また、画信号の
送出以前に回線のエコーサプレッサがイネーブルされる
ために回線の全二重通信状態は解除され、回線を半二重
通信モードとすることができ、エコーによる歪を防止す
ることができる。従って、エコーサプレッサが設定され
た通信回線を用いてファクシミリ通信を行う場合にも、
その通信手順と画信号の送信とを確実に行うことができ
るという優れた効果を有するものである。As described above, according to the present invention, since the echo suppressor of the line is disabled before the transmission of the communication procedure signal, the line is in the full-duplex communication mode and the transmitting side is transmitting the communication procedure signal. Alternatively, the response signal from the receiving side can be received immediately after transmission, and the full-duplex communication state of the line is canceled because the echo suppressor of the line is enabled before the transmission of the image signal, and the line is halved. The duplex communication mode can be set and distortion due to echo can be prevented. Therefore, even when performing facsimile communication using the communication line for which the echo suppressor is set,
This has an excellent effect that the communication procedure and the transmission of the image signal can be surely performed.
【図１】本発明に係るファクシミリ通信方法の一実施例
を示す信号シーケンス図FIG. 1 is a signal sequence diagram showing an embodiment of a facsimile communication method according to the present invention.
【図２】従来例を示す信号シーケンス図FIG. 2 is a signal sequence diagram showing a conventional example.
１２ エコーサプレッサディセーブルトーン信号 １３ 位相信号 １４ 位相ＯＫ信号 １５ エコーサプレッサイネーブル信号（無信号） 12 Echo suppressor disable tone signal 13 Phase signal 14 Phase OK signal 15 Echo suppressor enable signal (no signal)
Claims (1)
を用いてファクシミリ通信を行うファクシミリ通信方法
であって、送信側ファクシミリ装置からエコーサプレッ
サディセーブル信号を送出することにより、前記通信回
線を全二重通信モードとして通信手順を実行し、送信側
ファクシミリ装置からエコーサプレッサイネーブル信号
を送出することにより、前記通信回線を半二重通信モー
ドとして画信号を送出することを特徴とするファクシミ
リ通信方法。1. A facsimile communication method for performing facsimile communication by using a communication circuit in which an echo suppressor is set, wherein the communication line is full-duplex by transmitting an echo suppressor disable signal from a transmitting side facsimile device. A facsimile communication method, wherein a communication procedure is executed in a communication mode, and an echo suppressor enable signal is transmitted from a transmitting side facsimile apparatus to transmit an image signal in a half-duplex communication mode on the communication line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7067751A JP2760480B2 (en) | 1995-03-27 | 1995-03-27 | Image communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7067751A JP2760480B2 (en) | 1995-03-27 | 1995-03-27 | Image communication device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61207253A Division JPH0620229B2 (en) | 1986-09-03 | 1986-09-03 | Communication method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07264375A true JPH07264375A (en) | 1995-10-13 |
| JP2760480B2 JP2760480B2 (en) | 1998-05-28 |
Family
ID=13353966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7067751A Expired - Fee Related JP2760480B2 (en) | 1995-03-27 | 1995-03-27 | Image communication device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2760480B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008022595A1 (en) * | 2006-08-18 | 2008-02-28 | Huawei Technologies Co., Ltd. | Control method, device, and system of echo canceller during faxing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3956589A (en) * | 1973-11-26 | 1976-05-11 | Paradyne Corporation | Data telecommunication system |
| JPS6087534A (en) * | 1983-10-19 | 1985-05-17 | Nec Corp | Echo suppressor control system |
| JPS6199425A (en) * | 1984-10-19 | 1986-05-17 | Nippon Telegr & Teleph Corp <Ntt> | Echo suppressing circuit |
-
1995
- 1995-03-27 JP JP7067751A patent/JP2760480B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3956589A (en) * | 1973-11-26 | 1976-05-11 | Paradyne Corporation | Data telecommunication system |
| JPS6087534A (en) * | 1983-10-19 | 1985-05-17 | Nec Corp | Echo suppressor control system |
| JPS6199425A (en) * | 1984-10-19 | 1986-05-17 | Nippon Telegr & Teleph Corp <Ntt> | Echo suppressing circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008022595A1 (en) * | 2006-08-18 | 2008-02-28 | Huawei Technologies Co., Ltd. | Control method, device, and system of echo canceller during faxing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2760480B2 (en) | 1998-05-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |