JPH02231858A - Voice picture communication system - Google Patents
Voice picture communication systemInfo
- Publication number
- JPH02231858A JPH02231858A JP1052364A JP5236489A JPH02231858A JP H02231858 A JPH02231858 A JP H02231858A JP 1052364 A JP1052364 A JP 1052364A JP 5236489 A JP5236489 A JP 5236489A JP H02231858 A JPH02231858 A JP H02231858A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- facsimile terminal
- switching signal
- image
- transmission reception
- 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 claims abstract description 22
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Facsimiles In General (AREA)
- 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、音声送受信機能と画像送受信機能を有するフ
ァクシミリ端末機の間で、電話回線を使用して音声と画
像の通信が行なわれる音声・画像通信システムに関する
。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a voice and image communication system in which voice and image communication is performed using a telephone line between facsimile terminals having a voice transmission/reception function and an image transmission/reception function. Regarding image communication systems.
従来、電話回線を使用した音声・画像通信システムにお
いて、音声送受信機能と画像送受信機能を有するファク
シミリ端末機の前記両機能の切換えは前記端末機に設備
されているスイッチの手動により可能となっていた。Conventionally, in voice/image communication systems using telephone lines, it has been possible to switch between the two functions of a facsimile terminal, which has a voice transmission/reception function and an image transmission/reception function, by manually operating a switch installed in the terminal. .
上述した従来の音声・画像通信システムは、着信側のフ
ァクシミリ端末機のスイッチが音声送受信機能側に切換
えられていた場合発信側のファクシミリ端末機からは画
像送受信が不可能であり、また、その逆に前記スイッチ
が画像送受信機能側に切換えられていた場合、発信側の
ファクシミリ端末機からは音声送受信が不可能となり、
発信側の目的を達成することができないという欠点があ
る。In the conventional voice/image communication system described above, if the facsimile terminal on the receiving side is switched to the voice sending/receiving function side, it is impossible to send or receive images from the facsimile terminal on the calling side, and vice versa. If the switch is set to the image sending/receiving function side, voice sending/receiving will not be possible from the facsimile terminal on the calling side.
The disadvantage is that the purpose of the sender cannot be achieved.
本発明の音声・画像通信システムは、
発信側のファクシミリ端末機は、着信側のファクシミリ
端末機に音声送受信機能あるいは画像送受信機能のうち
どちらの機能を使用するかを指示する切換信号を送出す
る切換信号送出回路を有し、
着信側のファクシミリ端末機は、前記切換信号を受信す
る切換信号受信回路と、該切換信号受信回路からの出力
により前記音声送受信機能あるいは画像送受信機能の切
換えを行なうための切換回路とを有している。In the voice/image communication system of the present invention, a facsimile terminal on the calling side sends a switching signal instructing the facsimile terminal on the receiving side to use either the voice transmission/reception function or the image transmission/reception function. The facsimile terminal on the receiving side includes a switching signal receiving circuit for receiving the switching signal, and a switching signal receiving circuit for switching the audio transmission/reception function or the image transmission/reception function based on the output from the switching signal receiving circuit. It has a switching circuit.
本発明は、発信側のファクシミリ端末機からの指示によ
り、着信側のファクシミリ端末機における音声送受信機
能と画像送受信機能の切換えを可能にしたものである。The present invention makes it possible to switch between the voice transmission/reception function and the image transmission/reception function in the receiving side facsimile terminal in response to an instruction from the calling side facsimile terminal.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の音声・画像通信システムの実施例のブ
ロック図である。FIG. 1 is a block diagram of an embodiment of the audio/image communication system of the present invention.
ファクシミリ端末機１と２は電話回線３で接続されてい
る。ファクシミリ端末機１（２）は、音声送受信回路１
１（１２）と、画像送受信回路＋２（２２）と、主制御
回路１３（２３）と、音声送受信回路１ １ （１２）
または画像送受信回路１２（２２）に主制御回路１３（
２３）の接続を切換える切換回路１４（２４）と、音声
送受信機能と画像送受信機能を切換える切換信号を、発
信側の場合には切換回路１４（２４）および受信側に送
信し、受信側の場合には発信側から受信して切換回路１
４ （２４）に出力する切換信号送受信回路＋５（２５
）を有している。Facsimile terminals 1 and 2 are connected through a telephone line 3. The facsimile terminal 1 (2) has an audio transmitting/receiving circuit 1
1 (12), image transmitting/receiving circuit +2 (22), main control circuit 13 (23), and audio transmitting/receiving circuit 1 1 (12)
Or the main control circuit 13 (
23), and a switching signal for switching between the audio transmission/reception function and the image transmission/reception function is transmitted to the switching circuit 14 (24) and the receiving side in the case of the transmitting side, and receives it from the transmitting side and switches the switching circuit 1.
4 (24) switching signal transmission/reception circuit +5 (25
)have.
次に、本実施例の動作を、ファクシミリ端末機１を発信
側、ファクシミリ端末機２を受信側とし、画像通信を行
なう場合について説明する、まず、ファクシミリ端末機
１では切換信号送受信回路１５からの切換信号により切
換回路ｌ４が画像送受信回路１２側に切換えられるとと
もに、同じ切換信号が主制御回路】３を経て、電話回線
３によりファクシミリ端末機２に送信され、ファクシミ
リ端末機２では主制御回路２３を経て切換信号送受信回
路２５で受信されて切換回路２４が画像送受信回路２２
側に切換えられる。この後、画像信号が画像送受信回路
ｌ２からファクシミリ端末機２に送出され、画像送受信
回路２２で受信される。Next, the operation of this embodiment will be explained in the case where image communication is performed with facsimile terminal 1 as the transmitting side and facsimile terminal 2 as the receiving side. The switching signal causes the switching circuit 14 to switch to the image transmitting/receiving circuit 12 side, and the same switching signal is transmitted to the facsimile terminal 2 via the main control circuit 3 via the telephone line 3, and in the facsimile terminal 2, the main control circuit 23 is received by the switching signal transmitting/receiving circuit 25, and the switching circuit 24 transmits the image to the image transmitting/receiving circuit 22.
can be switched to the side. Thereafter, the image signal is sent from the image transmitting/receiving circuit 12 to the facsimile terminal 2, and is received by the image transmitting/receiving circuit 22.
以上説明したように本発明は、発信側から電話回線を介
して受信側の音声送受信機能と画像送受信機能の切換を
行なうことができるようにしたことにより、システムの
運用性が向上するという効果がある。As explained above, the present invention has the effect of improving the operability of the system by enabling the calling side to switch between the voice sending and receiving function and the image sending and receiving function of the receiving side via the telephone line. be.
第１図は本発明の音声・画像通信システムの実施例を示
すブロック図である。
１，２・・・ファクシミリ端末機、
３・・・・・・・・・電話回線、
１１． ２１・・・音声送受信回路、
１２． ２２・・・画像送受信回路、
２３・・・主制御回路、
２４・・・切換回路、
２５・・・切換信号送受信回路。FIG. 1 is a block diagram showing an embodiment of the audio/image communication system of the present invention. 1, 2...Facsimile terminal, 3...Telephone line, 11. 21...Audio transmission/reception circuit, 12. 22... Image transmitting/receiving circuit, 23... Main control circuit, 24... Switching circuit, 25... Switching signal transmitting/receiving circuit.
Claims (1)
端末機の間で、電話回線を使用して音声と画像の通信が
行なわれる音声・画像通信システムにおいて、 発信側のファクシミリ端末機は、着信側のファクシミリ
端末機に音声送受信機能あるいは画像送受信機能のうち
どちらの機能を使用するかを指示する切換信号を送出す
る切換信号送出回路を有し、 着信側のファクシミリ端末機は、前記切換信号を受信す
る切換信号受信回路と、該切換信号受信回路からの出力
により前記音声送受信機能あるいは画像送受信機能の切
換えを行なうための切換回路とを有することを特徴とす
る音声・画像通信システム。[Claims] In a voice/image communication system in which voice and image communication is performed using a telephone line between facsimile terminals having voice transmission/reception functions and image transmission/reception functions, the facsimile terminal on the calling side is , the facsimile terminal on the called side has a switching signal sending circuit that sends out a switching signal instructing the facsimile terminal on the called side to use either the voice transmission/reception function or the image sending/reception function; An audio/image communication system comprising: a switching signal receiving circuit for receiving a signal; and a switching circuit for switching the audio transmitting/receiving function or the image transmitting/receiving function based on the output from the switching signal receiving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1052364A JPH02231858A (en) | 1989-03-03 | 1989-03-03 | Voice picture communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1052364A JPH02231858A (en) | 1989-03-03 | 1989-03-03 | Voice picture communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02231858A true JPH02231858A (en) | 1990-09-13 |
Family
ID=12912752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1052364A Pending JPH02231858A (en) | 1989-03-03 | 1989-03-03 | Voice picture communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02231858A (en) |
-
1989
- 1989-03-03 JP JP1052364A patent/JPH02231858A/en active Pending
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