JPS62242460A - Communication control equipment - Google Patents

Communication control equipment

Info

Publication number
JPS62242460A
JPS62242460A JP8627586A JP8627586A JPS62242460A JP S62242460 A JPS62242460 A JP S62242460A JP 8627586 A JP8627586 A JP 8627586A JP 8627586 A JP8627586 A JP 8627586A JP S62242460 A JPS62242460 A JP S62242460A
Authority
JP
Japan
Prior art keywords
busy
calling
busy tone
time
detected
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
Application number
JP8627586A
Other languages
Japanese (ja)
Inventor
Takashi Kotani
小谷　隆志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP8627586A priority Critical patent/JPS62242460A/en
Publication of JPS62242460A publication Critical patent/JPS62242460A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To shorten the time to be required up to the stop of calling operation at the time of automatic calling by detecting a terminating side busy tone indicating the busy state of the terminating side by a terminating side busy tone detecting means. CONSTITUTION:When a calling instruction is generated from a personal computer, a selecting signal is sent to a communication line 10 and a timer is started <= for 50 sec. If polarity inversion is not detected, the detection of a busy tone by a busy tone detecting circuit 8 is waited, and when the busy tone is detected, the calling operation is stopped. Consequently, the time required up to the stop of the calling operation can be shortened at the time of automatic calling.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、パーソナルコンピュータと通信回線との間に
設けられる通信１ｊＩ御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication 1jI control device provided between a personal computer and a communication line.

［従来の技術１ 従来のパーソナルコンピュータ（以下、「パソコン」と
いう）通信制御装置は、自動発呼時に。[Prior Art 1] A conventional personal computer (hereinafter referred to as a "PC") communication control device automatically makes a call.

５０秒以下のタイマ時間内で、極性反転を監視している
。これは、そのタイマ時間内に、極性反転があれば、着
呼受は付けとみなし、逆に、タイムアウトの場合、接続
不可と判断するためである。Polarity reversal is monitored within a timer period of 50 seconds or less. This is because if there is a polarity reversal within the timer time, it is assumed that the incoming call has been accepted, and conversely, if the timer times out, it is determined that the connection is not possible.

したがって、相手がビジーである場合、タイムアウトし
、これによって、接続不可であると判断する。しかし、
その接続不可を判断するまでには、５０秒程度の長い時
間を必要とし、そのタイマ時間が無駄に消費されるとい
う問題がある。Therefore, if the other party is busy, a timeout occurs and it is determined that connection is not possible. but,
There is a problem in that it takes a long time of about 50 seconds to determine whether the connection is impossible, and the timer time is wasted.

［発明の［目的１ 本発明は、と記従来例の問題点に着目してなされたもの
で、自動発呼したときに、相手がビジーであれば１発呼
動作を停市するまでの時間を短縮することができる通信
制御装置を提供することを目的とするものである。[Objective 1 of the Invention] The present invention has been made by focusing on the problems of the prior art as described below. An object of the present invention is to provide a communication control device that can shorten the time required.

【発明の実施例］ 第１図は１本発明の一実施例を示すブロック図である。[Embodiments of the invention] FIG. 1 is a block diagram showing an embodiment of the present invention.

パソコン通信制御装置１は、Ｒ３２３２Ｃインタフ工−
ス部２を介してパソコン９に接続され、またＮＣＵ　（
網制御ユニット）８を介して１通信回線ｉｏに接続され
ている。The PC communication control device 1 has an R3232C interface.
It is connected to the personal computer 9 via the bus section 2, and is also connected to the NCU (
It is connected to one communication line io via a network control unit) 8.

ＣＰＵ４は、ＲＯＭ３に格納されているファームウェア
によって、パソコン９と通信回線１０との間の通信制御
を行ない、パソコン９からの指令によって、変復調部６
、ＮＣＵ７を経由し１発呼シーケンスを開始する。The CPU 4 controls communication between the personal computer 9 and the communication line 10 using firmware stored in the ROM 3, and controls the modem unit 6 based on instructions from the personal computer 9.
, one call sequence is started via the NCU7.

また、ビジー音検出回路８は、相手がビジーであること
を示す相手ビジー音を検出し、このときに、Ｉ１０イン
タフェース部５を介して、ＣＰＵ４へ通知するものであ
る。Further, the busy sound detection circuit 8 detects the other party's busy sound indicating that the other party is busy, and notifies the CPU 4 via the I10 interface section 5 at this time.

ＣＰＵ４とＲＯＭ３とＮＣＵ７とは、９．呼中止ｆ段の
一例であり、この発呼中止手段は、自動発呼時に、上記
相手ビジーａを検出したときに、発呼動作を中止する手
段である。CPU4, ROM3, and NCU7 are 9. This is an example of the call canceling stage f, and this calling canceling means is a means for canceling the calling operation when the above-mentioned busy party a is detected during automatic calling.

次に、上記実施例の動作について説明する。Next, the operation of the above embodiment will be explained.

第２図は、上記実施例の動作を示すフローチャートであ
る。FIG. 2 is a flowchart showing the operation of the above embodiment.

まず、パソコン９から発呼命令があったとぎに、通信回
線ｌＯに対して選択信号を送出する（Ｓｌ）、そして、
５０秒以下のタイマをスタートさせる（Ｓ２）。First, upon receiving a call command from the personal computer 9, a selection signal is sent to the communication line IO (Sl), and
A timer of 50 seconds or less is started (S2).

そして、そのタイマ時間内に、極性反転を検出したなら
ば、モデムト順に移る（Ｓ３）、もし、極性反転を検出
しなかったならば、ビジー音検出回路８がビジー音を検
出するのを待ち、そのビジー陛を検出したとさに１発呼
動作を中止する。If a polarity reversal is detected within the timer time, the process proceeds to the modem order (S3); if a polarity reversal is not detected, the busy sound detection circuit 8 waits for a busy sound to be detected; As soon as the busy state is detected, the calling operation is stopped.

一方、ビジー音を検出しない場合には、Ｓ３に戻り、極
性が反転せずまたビジー音を検出しないままタイムアウ
トになったならば（５５）、発呼動作を中１する。On the other hand, if the busy tone is not detected, the process returns to S3, and if the polarity is not reversed and a timeout occurs without detecting the busy tone (55), the calling operation is stopped.

［発明の効果］ 本発明によれば、自動発呼したときに、相手がビジーで
あれば１発呼動作を停止Ｅするまでの時間を短縮するこ
とができるという効果を有する。[Effects of the Invention] According to the present invention, when an automatic call is made, if the other party is busy, it is possible to shorten the time required to stop the calling operation.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本発明の一実施例を示すブロック図である。 第２図は、上記実施例の動作を示すフローチャートであ
る。 ｌ・・・パソコン通信制ｍ装置、 ３・・・ＲＯＭ。 ４・・・ＣＰＵ、 ８・・・ビジー音検出回路。FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a flowchart showing the operation of the above embodiment. l...PC communication system m device, 3...ROM. 4...CPU, 8...Busy sound detection circuit.

Claims (1)

【特許請求の範囲】 パーソナルコンピュータと通信回線との間に設けられる
通信制御装置において、 相手がビジーであることを示す相手ビジー音を検出する
相手ビジー音検出手段と； 自動発呼時に、前記相手ビジー音を検出したときに、発
呼動作を中止する発呼中止手段と；を有することを特徴
とする通信制御装置。[Scope of Claims] A communication control device provided between a personal computer and a communication line, comprising: a destination busy sound detection means for detecting a destination busy tone indicating that the destination is busy; 1. A communication control device comprising: a call canceling means for canceling a call operation when a busy tone is detected.
JP8627586A 1986-04-15 1986-04-15 Communication control equipment Pending JPS62242460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8627586A JPS62242460A (en) 1986-04-15 1986-04-15 Communication control equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8627586A JPS62242460A (en) 1986-04-15 1986-04-15 Communication control equipment

Publications (1)

Publication Number Publication Date
JPS62242460A true JPS62242460A (en) 1987-10-23

Family

ID=13882273

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8627586A Pending JPS62242460A (en) 1986-04-15 1986-04-15 Communication control equipment

Country Status (1)

Country Link
JP (1) JPS62242460A (en)

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