【図面の簡単な説明】[Brief explanation of the drawing]
第１図は在来の交換方式、第２図は在来交換方
式の接続時間のグラフ、第３−１図は本願発明の
原理図、３−２図は本願発明の原理の複局地々域
に実施する思想過程を示す説明図、第３−３図は
本願発明の一実施例。第４図は本願発明における
入線、出線のリンク処理の説明図、第５−１図乃
至第５−５図は、本願発明における接續時間の説
明図。
Fig. 1 is a graph of the conventional switching system, Fig. 2 is a graph of connection time of the conventional switching system, Fig. 3-1 is a diagram of the principle of the present invention, and Fig. 3-2 is a diagram of the principle of the present invention. FIG. 3-3 is an explanatory diagram showing the thought process implemented in the area, and is an embodiment of the present invention. FIG. 4 is an explanatory diagram of incoming line and outgoing line link processing in the present invention, and FIGS. 5-1 to 5-5 are explanatory diagrams of connection time in the present invention.
【発明の詳細な説明】[Detailed description of the invention]
在来の交換方式は第１図に示すごとく、呼加人
者Ｕが送受話器をとりあげると、Ｕ所属の交換局
Ａの制御回路ACが動作して呼線を見つけ、Ｕが
被呼加入者Ｚの番号をダイヤルすると、交換局Ａ
の制御回路AC内のレヂスタに蓄積される。交換
局Ａにあつては、使用中の通話線を、何らかの手
段で記号づけ、或は記憶しておき、呼が入ると、
ACは中継線群を走査して、上記記号づけされた
中継線以外の中継線に遭遇すれば、これを「空」
と判断して使用線として確保し、被呼者番号等の
接続用情報信号を運んだ入中継線とスイツチを介
して結び合はせる。当該信号はACのセンダより
選択された出線を通じて下位局Ｂ局にむけて送ら
れ、Ｂ局ではBCがこの入線（Ａ局の出線）をみ
つけて、仝様に下位局Ｃ局むけの出線を確保して
これと入線とを結び合せ、Ｂ局のセンダより接続
信号をＣ局むけ送信する。順次斯様に行つてつい
に被呼者Ｚに接続される。
この時間のグラフは第２図に示されるごとく、
信号入力時間Ｓgについで、出線探索時間Ftがあ
り、ついでリレー等が動作して入線と出線とを接
続する時間Ｃtが必要である。
これが第一交換局、第２交換局………と縦續に
繰り返され、交換局数をＮとして、Ｎ倍される。
本願発明は、出線の撰択決定、入線の接続を並
行して行ひ、略同時に接続を行つて通話系の接続
時間を、一局分と略等しくすることを目的とす
る。
更に本願発明の他の目的は、上記効果を用ゐ
て、被呼者と呼者が通話の内容について若干の思
考および行動をなして、再び被呼者と通話をなさ
んとする場合、思考中、臨時的解放信号によつて
通話系を解放して他者の通話の用に供し、通話者
が再通話を欲する時、その旨の信号を押しボタン
等で発するだけで、相手と瞬時に再接続しうるこ
とにある。
本願発明の装置構成
第３−１図は本願発明の基本的原理を示すもの
である。交換局はＡ、Ｂ、Ｃ、局とし呼者Ｕが被
呼者Ｚを呼ぶものとする。
Ａ局のAXは接続用機構を示し、ACはAPと共
に制御用機能を果す。一括して第１図ACに当る
ものだが、特に説明を補けるために、AX動作動
作用のACと、信号情報を処理するAPとに分解し
て示す。
Ｉは臨時的解放信号等の識別器である。
第３−１図において、CSに専用の信号伝送手
段たる共通信号線に接続されて、当該信号を分岐
受信するレヂスタ回路DRと、当該局で決定した
通話出線の番号情報を上記専用信号線に送出する
ための切替回路Ｓを具へる。
DRは接続用信号を蓄積しかつ信号中の制御用
シンボルを検出する機能をもつ。
Ｓは呼者の発する接続用信号が当該交換局を通
過した後に、専用共通信号線を当該局装置AP，
BPに接続する。
次に第３−３図は、RS等共通専用信号線の経
済的利用のための手段をそなへる。第３−１図の
装置は、ルートが特定され、一ルートに一システ
ムを必要とする。このRSによつて行先別に切替
へて一システムを複数ルートに用うるごとくなし
たものである。
RSはDRの蓄積情報によつて行先端子をかへる
選択スイツチで、説明の便宜上模擬的に機械的回
転スイツチで図示する。
Ｄは遅延回路であり、RSが所定の行先端子を
把捉し終るまで情報が遅延され、これを欠く時は
RSに入力した信号は、その動作完了まで消去す
る。
以上は説明の便宜上すべて電子的回路とする。
系の動作の説明
第３−１図について
今呼者ＵがＡ局所属の加入者とし、通話せんと
して受話器をとりあげると、Ａ局装置は呼線をさ
がして信号の受入準備をする。
Ｒは局内のレヂスタで、上記の準備動作で、Ｕ
の加入者線に接続される。
加入者Ｕがダイヤル等の信号で被呼者番号を送
出するとＲに蓄積されること、在来技術の通りで
ある。Ｒは発呼者Ｕの加入者線に引續き接続され
最終まで動作する（当図点線はクリヤ等の制御を
表す）。本願発明の一実施例として、Ｒの内容は
コーダCDを通じて適当な信号形態（例へばデイ
ジタル信号）に変換され、呼者Ｕの信号送出のの
指令によつて、自局の専用信号線装置に送出され
る。
この信号は、例へば図中下側にXBC・Ｚ＊と
表示する様に、制御用シンボル＊を持ち、コーダ
CDを通じて、呼者Ｕよりの情報に附加される。
情報中のＸは例へば市外局番とかタンデム局番
とかを括めて表示したもので、Ｂ、Ｃは自局以遠
に接續を延長してゆくために、下位局Ｂ局、Ｃ局
にて行先を判断するために用うる情報を意味す
る。（ＢによつてＢ局行と判断するといふ意味で
はない）。Ｚは被呼者の所属局内における番号を
意味する。
DRは当該信号を専用信号線より分岐受信して
蓄積する。この情報はAPに送られ、方面別の信
号に変換され該当方面の中継線群の中の空線を撰
び出す。
又信号末尾の制御用シンボルによつて、DRは
番号情報が終了したことを知り、スイツチ回路Ｓ
を共通専用信号線側より自局のAP側に切りかへ
る。（後述のタイミング表を参照）。
第３−２図について
第３−１図の専用信号線のシステムを一ルート
として各交換ルートごとに設ける状況は、第３−
２図に示される。仝図−１は、３−１図システム
の略図であり、２は、これをABC、ABW、ABX
局の三ルートに設置したもので、複局地でかかる
複合システムが必要になるのは当然である。茲に
２の〇印Ｓは、１の切替スイツチＳの位地を示
す。
しかし乍ら、２によればＡ−Ｂ局間が重複して
布設され、施設を複雑化し且不経済であることは
一見して明らかであり、Ａ−Ｂ局間を單一化しＢ
局の出側に切替スイツチRSを設けて、行先別に
RSを撰択接續することを考へるのは、極めて当
然である。この機能を第３−１図の基本的発明に
附加すれば、第３−３図に示す様になる。
第３−３図について
各局CS内のDRに蓄積された交換接続用情報の
中、行先局を意味する局番情報によつて、RSを
撰択接續し該当端子に上位局よりの専用信号線を
接ぐ。始端局CDより接續用情報信号はRSの動作
に不拘一定のペースで送信され、RSの動作が完
了せぬ間は、RSの前で消費され、動作完了後は
上位局をも含めて同時に（或は殆ど同時に）送達
される。
一方DR内情報は制御回路（AP，BP、等）に
送られ、通話方向を判断し、該方面向け空通話線
を探索するために用ゐられることは、在来技術の
通りである。但し各局は方面別にレヂスタを具
へ、空出線番号を予め記録しDR内情報に基いて
該当方面の空線レヂスタにのみ、讀み出し信号を
與へて空線撰択をなすごとくすれば、探索の時間
を省略して、通話系の完成を瞬時に行ふ本願発明
の目的に寄與させ得る。
Ａ局CS内ORによつて空通話線が撰ばれる状況
は、第４図に示す。
Ａ局の通話出線の方面グループが、図示の様に
第１グループより第ｌグループまであると仮定し
これをＧ1a、Ｇ2a、………Ｇlaと表すと、Ｂ局む
けグループがＧlaであれば、空線レヂスタには、
その中の第ｍ番の情報、つまり空線番号Ｇla-nが
蓄積され、Ｂ局むけの信号によつて、讀み出され
AXに指示される。
一方入線側端子は、すでに加入者線が既知であ
るから入トランクと加入者線と接がれ、通話線出
トランクはAXの出側端子に接がれ、入側端子と
出側端子がリンクされることは在来公知の技術で
ある。
出線番号情報は下位局Ｂ局にとつては、入線の
番号情報である。すなわちＡ局APよりＳを通つ
Ｇla-nの情報は下位局Ｂ局のCSに送られる。
Ｂ局ではCS内スイツチＳがBP側に切替つてお
り、更に下位局にＧla-nの上位よりの情報が伝達
されることはない。單にＢ局DRに蓄積される。
Ｂ局ではDRにXBC・Ｚ＊とＧla-nが蓄積され、
＊印とＧla-nとは時間的にはなれて差支へない。
又〔XBC〕の〔Ｂ〕によつてＣ局むけRSの接続
と通話用出線の撰択がなし得るので〔Ｘ〕は不要
であり省略できる。
Ｂ局の出線の方向が１番よりｐ番までありＣ局
むけがｐ番目グループの通話線群であるとする
と、この中ｎ番号の中継線が選ばれると、その番
号情報Ｇpb-oが空線メモリに候補として記憶され
（或は出線マツプに記録され）これがメモリより
突き出され、BCにより通話出線トランクを起動
して、BX端子と出線トランクを結び、他方出線
の番号情報Ｇpb-oはＢ局CS内Ｓをとおつて、下
位局Ｃ局に送り出される。
タイミングの説明
第３−１図の系
第３−３図のRS従つて亦Ｄを閑却したものが
即ち第３−１図である。第３−３図のRSの端子
を特定の下位局むけに固定しておけば全く第３−
１図と同様である。
第３−１図の系で始端局CDより局番情報
〔XBC〕は終端局まで一気に貫通し、途中局のCS
のDRは、これを同時に分岐受信し以下の情報
〔・Ｚ＊〕も仝様で、＊印の識別に基いて各CS内
Ｓが切替る。第５−１図において、情報伝達時間
をＳgで示し、局番情報の分をＳg1、加入者番号
Ｚの分をＳg2とし＊印等はＳg2に含めて示す。局
番が仮りに三桁ならば、Ｓg1は、s1、s2、s3を以
て分割して示す。
通話線の方向別、番号決定は〔XBC・Ｚ＊〕
の〔・〕を俟つても、各桁s1等の時点でも開始さ
れ充分な動作速度の部品素子を用ゐれば、又その
間、a2、b1、c1の時点で決定できる。
第５−２図はＡ列が交換接続用情報の情報レー
トを示しＢ列は装置の制御パルスを示す。例へば
Ｂ列をＡ列の二倍の周波数にとればＢ列の第一パ
ルスＦでＡ列のパルスが識別され第二パルスＳで
各素子の応答がなされ、Ａ列のパルス状態の時間
ｔnとスペースｔsとの間に於て装置の応答がなさ
れる。斯様に応答速度に注意して器機の素子を選
べば情報信号のｔs内は勿論、制御パルスの速度
を更に早くすれば、マークｔn内に器機を作動さ
せ得ることは明らかである。
第５−１図のＳg間に各局の接続機構AX等は各
個に作動し、Ｓgの終了する＊印の識別で各局CS
内でＳは同時に切替り下位局に自局の通話出線情
報を送出する。各局は上位局の出線情報をDRで
受けつつ、下位局に自局めそれを送ることにな
り、その時間はＳg後更にＯtだけ経過したa3、
b3、c3で送出し終る。各局とも同時点である。Ｏ
t後各局の接続機構AX等により入線と出線とリン
クする時間Ｃta、Ｃtb、等をへて通話路が出来
る。この時点a4、b4、c4とすると各局同時で通話
路が貫通する。
第３−３図の系について
しかるに実用上RSの設置によつてその動作時
間を考へねばならない。
第５−３図において局番信号の最初の桁の時間
s1内でRSの接續端子を判断し切替を終り得る。
茲で第一アプローチとして遅延を閑却し、遅延回
路Ｄを閑却すると、情報の最初の一桁が始端局
CDより発してＡ局DRに入ると、情報（Ｘ）で行
先をＢ局と判断してRSをＢ向け端子に廻転す
る。このRSの撰択接続が完了するまで信号電流
はRSの前でむだに消耗する。第５−２図のごと
く信号パルスで起動し信号のスペース内ｔsの終
る迄に接續完了すれば一桁目Ｘの信号電流はRS
の入力端で消失する。
次のエポツクに始端局のCDが情報〔XBC〕の
中の(B)を発信するときは、情報(B)はＡ局DRとＢ
局DRに蓄積される。Ｂ局CS内DRは、情報(B)に
よつてＢ局RSを動作させＣ局行きと判断して下
位局Ｃむけ端子に接續する。前のＡ局と同様に
RSが信号のｔsで動作を完了すれば、情報(B)の信
号電流は、Ｂ局RS前で消失し、Ｃ局には到達し
ない。
始端局CDが交換接續用情報の中の(C)を発生す
ると、信号ＣはＡ局DR、Ｂ局DR及Ｃ局DRに蓄
積される。Ｃ局DRは情報(C)によつて自局の何番
目のユニツト（一ユニツトは１万端子、0000番〜
9999番分の加入者群）かを判断できる。（XBC・
Ｚ）の（・）印によつて局番情報は了り、該当ユ
ニツト内の被呼者は情報（Ｚ）によつて制御回路
CPが判断する。
各局DRに記録される情報は、第５−３図に示
すごとく、Ａ局はXBC・Ｚ＊であり、Ｂ局は
BC・Ｚ＊であり、Ｃ局はＣ・Ｚ＊であるが、最
終の＊の記録される時点は同一である。
しかし、速素子を選べば第５−２図ｔn内に
RSの撰択接續の動作を完了せしめ得るものであ
る。よつて各局RSの前で消滅する信号電流はパ
ルス全部でなくその前部分となる。第５−４図に
よつて、一部分削られる場合のタイミングを示
す。
信号電流の一部が削られても動作する敏感な
DRであれば、例へばＢ局CSでは、Ａ局CDの発
する信号ＸがＡ局RSの動作完了までに削られ残
りのエネルギーを受けてこれを蓄積することがで
きる。第５−４図の（Ａ局RSの前）とはＡ局DR
に記憶される情報で〔XBC・Ｚ＊〕となり（Ｂ
局RSの前）とはＢ局DRに蓄積した情報で
〔XBC・Ｚ＊〕である。信号電流（Ｘ）の削られ
た部分は斜線で示され、残りの巾が狭い電流で
DRが動作しなければ〔BC・Ｚ＊〕である。
情報(B)の信号電流の間にＢ局RSは下位局むけ
端子に接続され、接続用情報は電流(B)の一部が削
られて送られる。Ｂ局RSの後とはＣ局DRの前
で、まづ削られた(B)の信号電流が到達し情報
（Ｘ）の電流は到達しない。ついで情報(C)が到達
しＣ局DRには情報（BC・Ｚ＊）が記録される。
Ａ局DRには情報（XBC・Ｚ＊）、Ｂ局DRは
（XBC・Ｚ＊）又は〔BC・Ｚ＊〕、Ｃ局DRは
（BC・Ｚ＊）又は（Ｃ・Ｚ＊）である。
この削られる部分、RSの動作が完了するに必
要な時間、だけ情報を遅らせれば信号電流は完成
した形でDRに到達し得る。普通の対応網の場合
は下位局では情報の上位桁は必要でなく、Ｂ局
DRで情報(B)があれば充分である。非対応網、迂
回中継の場合は各下位局で全情報を必要とする場
合がある。
最終信号＊印によつてCS内スイツチが切り替
り、すでに確定した通話用中継線の番号情報を送
るがこの時間は５−３図のＯta，Ｏtb，………で
ある。下位局の入線情報の受信する時間Ｉtb、Ｉt
ｃはこれ等と重なる。入線情報によつて各局制御
回路AC，BC、等は既定の出線と入線とのリンク
を夫夫の接續機構AX，BX，CX等に指令し、接
続時間Ｃta、Ｃtb、Ｃtcを経て、入出線が結合され
る。第５−５図をも参照。
交換接続用情報が最初から省略されてゆくとし
ても受信する下位局では受信情報の最初桁が原情
報の何桁目かわからぬ懼れはない。信号線の実際
上の布設では、上位局が総括局か中心局か集中局
かという区分が入信号線について存在するので、
入力情報の第一位が原順位の第何桁かは自明なの
である。
第５−５図は通話出線把捉の時間Ｆt等を入れ
て考へたタイミング表である。
Ａ局では一桁目で出線が決定される時点は図示
のとおりで、入線は発呼加入者で既に最初に判明
してゐるから接続用情報が下位局に流れてゐる中
に入線と出線はリンクされる。下位局に対しては
出線情報はＳg2の終る時点より時間Ｏtaまでに送
出される。Ｂ局では二数字目で通話出線を見出す
からその時点は図中Ｆtbである。Ｃ局では加入者
Ｚを識別するのはＳg2の直後からである。しかる
にこれ等の時間帯に重つて、出線情報が下位局に
送られ、入出中継線のリンクが準備され、受信時
間帯Ｉtが各局とも同時であり、従つてリンクす
る時間Ｃtも亦同時帯である。
各局の出線発見の動作はＳg1後の、情報
〔XBC・Ｚ＊〕の中〔・〕印の識別を俟つて始め
ても可能なことは論を俟たない。
以上を綜合すれば第５−５図によつて明かな様
に、系全体の接続時間Ｔは、
Ｔ＝Ｓg＋Ｉt（＝Ｏt）＋Ｃt
であり、RSの動作完了のための待合せ用遅延回
路Ｄによる「おくれ」ｄを考へれば局数Ｎとし
て、（Ｎ−１）ｄだけＴに追加される。但しｄは
小いので、この影響は閑却される。
一方在来技術においてはステツプ・バイ・ステ
ツプ或はリンク・バイ・リンク方式であるから、
一局より下位局への接続情報の送達は出線が決定
した後行はれる。更に出線が入線とリンクした後
行はれるから接続時間はリンクする時間Ｃtも寄
與し
T′＝Ｎ（Ｓg＋Ｆt＋Ｃt＋Ｉt）
となる。
すなはちＴ１／ＮT′である。
通話路開通試験とCSの開放
終端局では被呼者Ｚと入線をリンクしたことで
通話系の接続を完了した。終端局加入者線装置は
接続完了信号Ｃgを中継線（必ずしも通話線とは
限らぬ）を経て前位局むけに送出する。
信号Ｃgは始端局まで貫通し各局のＩはこれを
うけて自局CSを解放して他の呼の用に供せしめ
る。始端局でＣgを通話の始めにうけて課金装置
の起動その他の用をなすことは任意である。
通話路の臨時解放と臨時再接続
呼者Ｕが被呼者Ｚに事業上の問合せをなし、Ｚ
がその記録フアイルの所在を教へ、Ｕが戸棚を探
す間に無益に通話路は保留されてゐる。本願発明
は通話中の無益の保留を随時に解放し、又随時に
再接續をなすことを又一つの目的とする。
本願発明の一実施例によれば第３−１図、又は
第３−３図において加入者Ｚの指示により、随時
解放信号Ｒsgを送出し、各局のＩはＣgのみなら
ずＲsgを検出し、制御回路を経て通話路を解放す
る。Ｒsgは、通話路の解放以前に端局まで貫通す
る。
先述のケースでは、Ｕが書類を発見し再び通話
をなさうとすれば、その指示をＡ局のレヂスタＲ
に送る。Ｒは被呼者撰択の信号を再出しCDを経
て再び上述来の経緯で極小時間の中に通話路系が
再開される。
以上の機能によつて長時間にわたる通話の間無
通話の時間を除去して通話路を解放して他の通話
の用に供せしめ、而も再使用するに際し通話者に
何ら違和感、不便感を感じさせない方法をうるこ
とができる。
信号Ｒsgは呼者Ｕより送出することが可能であ
る。
In the conventional switching system, as shown in Figure 1, when the calling party U picks up the handset, the control circuit AC of the switching station A belonging to U operates to locate the call line, and U receives the called party. If you dial the number Z, you will be directed to exchange A.
is stored in a register in the control circuit AC. In exchange A, the telephone lines in use are marked or memorized by some means, and when a call is received,
AC scans the relay line group, and if it encounters a trunk line other than the one marked with the symbol above, it marks it as "empty".
This line is determined to be suitable for use, and is connected via a switch to an incoming trunk line that carries connection information signals such as the called party's number. The signal is sent to lower station B through the outgoing line selected by the AC sender, and at station B, BC finds this incoming line (outgoing line of A station) and sends the signal to lower station C. The outgoing line is secured and the incoming line is connected, and a connection signal is transmitted from the sender of the B station to the C station. This process is performed one after another until the called party Z is finally connected. The graph of this time is shown in Figure 2,
Following the signal input time Sg , there is an outgoing line search time Ft, and then a time Ct is required for relays to operate and connect the incoming line and the outgoing line. This is repeated in tandem with the first exchange, the second exchange, etc., and the number of exchanges is multiplied by N, where N is the number of exchanges. An object of the present invention is to select and determine an outgoing line and connect an incoming line in parallel, thereby making the connection time for the telephone line approximately equal to that for one station by performing the connection at substantially the same time. Furthermore, another object of the present invention is to use the above-mentioned effects to prevent the called party from thinking and acting when the called party and the calling party make some thoughts and actions regarding the content of the call and then try to talk to the called party again. During the middle of the day, the telephone system is released by a temporary release signal and used for another person's call, and when the caller wishes to resume the call, he/she can instantly communicate with the other party by simply issuing a signal to that effect with a push button, etc. It's about being able to reconnect. Device configuration of the present invention Figure 3-1 shows the basic principle of the present invention. Assume that the switching centers are A, B, and C, and that calling party U calls called party Z. The AX of the A station represents a connection mechanism, and the AC performs a control function together with the AP. Although they collectively correspond to the AC in FIG. 1, in order to supplement the explanation, they are shown broken down into AC for AX operation and AP for processing signal information. I is an identifier for a temporary release signal, etc. In Figure 3-1, a register circuit DR is connected to a common signal line, which is a signal transmission means dedicated to the CS, and branches and receives the signal; A switching circuit S is provided for sending the signal to DR has the function of accumulating connection signals and detecting control symbols in the signals. After the connection signal issued by the caller passes through the exchange, S connects the dedicated common signal line to the station equipment AP,
Connect to BP. Next, FIG. 3-3 provides means for economical use of common dedicated signal lines such as RS. In the apparatus of FIG. 3-1, a route is specified and one system is required for one route. This RS allows one system to be used for multiple routes by switching for each destination. RS is a selection switch that changes the row tip according to the information stored in the DR, and for convenience of explanation, it is illustrated as a mechanical rotary switch. D is a delay circuit, in which information is delayed until RS has grasped a predetermined line tip, and when it is missing,
The signal input to RS is erased until the operation is completed. For convenience of explanation, all the circuits described above are electronic circuits. Explanation of System Operation Regarding Figure 3-1 Now, when a caller U is a subscriber belonging to station A and picks up the receiver to make a call, the equipment of station A searches for a call line and prepares to accept a signal. R is a register in the station, and in the above preparation operation, U
connected to the subscriber line. When the subscriber U sends out the called party number by dialing or other signals, it is stored in R, as in the conventional technology. R is continuously connected to the subscriber line of calling party U and operates until the end (the dotted line in the figure represents clear control, etc.). As an embodiment of the present invention, the contents of R are converted into an appropriate signal form (for example, a digital signal) through a coder CD, and sent to the dedicated signal line equipment of the own station according to the signal sending command of the caller U. be done. This signal has a control symbol*, for example XBC・Z* displayed at the bottom of the figure, and a coder.
It is added to the information from caller U through the CD. The X in the information indicates, for example, the area code or tandem area code, and B and C indicate the destination at lower stations B and C in order to extend the connection beyond the own station. Refers to information that can be used to make decisions. (This does not mean that B determines that the bank is B-based.) Z means the number within the station to which the called party belongs. The DR branches and receives the signal from the dedicated signal line and stores it. This information is sent to the AP, where it is converted into signals for each direction and selects the empty wires in the group of trunk lines in that direction. Also, from the control symbol at the end of the signal, the DR knows that the number information has ended, and the switch circuit S
from the common dedicated signal line side to the own AP side. (See timing table below). About Figure 3-2 The situation in which the dedicated signal line system in Figure 3-1 is set up as one route for each switching route is as follows.
This is shown in Figure 2. Figure 1 is a schematic diagram of the Figure 3-1 system, and Figure 2 shows this as ABC, ABW, ABX.
It was installed on the three routes of the station, so it is natural that such a complex system would be required at multiple stations. The 2nd circle mark S indicates the position of the 1st changeover switch S. However, according to 2, it is obvious at first glance that stations A and B are laid redundantly, which complicates the facilities and is uneconomical.
A changeover switch RS is installed on the output side of the station, and
It is quite natural to consider selective continuation of RS. If this function is added to the basic invention shown in Fig. 3-1, it will become as shown in Fig. 3-3. Regarding Figure 3-3, among the exchange connection information stored in the DR in each station CS, the RS is selected and connected based on the station number information indicating the destination station, and the dedicated signal line from the upper station is connected to the corresponding terminal. Connect. The connection information signal is transmitted from the start station CD at a constant pace regardless of the operation of the RS, and while the operation of the RS is not completed, it is consumed in front of the RS, and after the operation is completed, it is transmitted simultaneously to the upper station ( or almost simultaneously). On the other hand, the DR information is sent to a control circuit (AP, BP, etc.) and is used to determine the call direction and search for a free call line for that direction, as is the case with conventional technology. However, if each station records the unused line number in the register for each area in advance, and selects the unused line by giving a read signal only to the unused line register of the corresponding area based on the information in the DR, This contributes to the object of the present invention, which is to omit the search time and complete the communication system instantly. Figure 4 shows the situation in which empty lines are selected by the OR in the A station CS. Assuming that the direction groups of the calling lines of station A are from the first group to the first group as shown in the figure, and these are expressed as G 1a , G 2a , ...G la , the group for B station is G. If it is la , the blank line register has
The m-th information, that is, the air line number G la-n , is stored and read out by the signal directed to station B.
Directed by AX. On the other hand, since the subscriber line is already known, the incoming terminal is connected to the incoming trunk and the subscriber line, and the outgoing call line trunk is connected to the AX outgoing terminal, and the incoming and outgoing terminals are linked. What is done is a conventionally known technique. For lower station B, the outgoing line number information is incoming line number information. That is, G la-n information passing through S from A station AP is sent to the CS of lower station B station. In station B, the internal CS switch S has been switched to the BP side, and information from the upper G la-n is not transmitted to lower stations. It is quickly accumulated in the B station DR.
At station B, XBC・Z* and G la-n are accumulated in the DR,
There is no difference in time between the * mark and G la-n .
Also, [X] is unnecessary and can be omitted since [B] of [XBC] allows the connection of the RS for station C and the selection of the outgoing line for communication. Assuming that the direction of the outgoing line from station B is from number 1 to number p, and the communication line group destined for station C is the p-th group, when the trunk line with number n is selected among them, its number information G pb-o is stored as a candidate in the blank line memory (or recorded in the outgoing line map), and this is ejected from the memory, and the BC activates the call outgoing trunk, connects the BX terminal and the outgoing trunk, and determines the number of the other outgoing line. The information G pb-o is sent to the subordinate station C through the S in the B station CS. Explanation of Timing System of Figure 3-1 Figure 3-1 shows the system in which RS and D in Figure 3-3 are omitted. If the RS terminal in Figure 3-3 is fixed for a specific lower station, the 3-3
It is the same as Figure 1. In the system shown in Figure 3-1, the station number information [XBC] passes from the starting station CD to the terminating station all at once, and the CS of the intermediate station
The DR receives this simultaneously, and the following information [・Z*] is also the same, and the S in each CS is switched based on the identification marked with *. In FIG. 5-1, the information transmission time is indicated by S g , the area number information is S g1 , the subscriber number Z is S g2 , and the * mark etc. are included in S g2 . If the station number is three digits, S g1 is divided into s 1 , s 2 , and s 3 . Number determination by direction of call line [XBC/Z*]
Even if [...] is exceeded, it can be determined at the points a 2 , b 1 , and c 1 between each digit, if components with sufficient operation speed are used and start even at the point of each digit s 1 . In FIG. 5-2, column A shows the information rate of exchange connection information, and column B shows the control pulses of the device. For example, if the frequency of the B train is set to twice that of the A train, the first pulse F of the B train will identify the pulse of the A train, the second pulse S will cause each element to respond, and the pulse state time of the A train will be t n The response of the device is made between and the space ts . It is clear that if the elements of the device are selected with due consideration to the response speed, it is possible to operate the device not only within the t s of the information signal, but also within the mark t n by increasing the speed of the control pulse. The connection mechanism AX, etc. of each station operates individually between S g in Figure 5-1, and each station CS is identified by the * mark at the end of S g .
At the same time, S switches and sends out call line information of its own station to the lower station. Each station receives the outgoing information from the higher - level station via DR and sends it to the lower-level station .
Sending ends at b 3 and c 3 . All stations are at the same time. O
After t , a communication path is established through the time C ta , C tb , etc., in which the incoming and outgoing lines are linked by the connection mechanism AX of each station. At this time point a 4 , b 4 , and c 4 , the communication path passes through each station simultaneously. Regarding the system shown in Figure 3-3, however, in practice, the operating time must be considered depending on the RS installation. In Figure 5-3, the time of the first digit of the station number signal
The connection terminal of RS can be determined within s 1 and switching can be completed.
If the first approach is to ignore the delay and ignore the delay circuit D, the first digit of the information will be the starting station.
When the signal is emitted from CD and enters the A station DR, the destination is determined to be B station based on the information (X) and the RS is rotated to the B terminal. Until this selective connection of RS is completed, the signal current is wasted in front of RS. As shown in Figure 5-2, if it is activated by a signal pulse and the connection is completed by the end of ts within the signal space, the signal current of the first digit X will be RS.
disappears at the input end. When the CD of the starting station transmits (B) in the information [XBC] at the next epoch, the information (B) is transmitted between the A station DR and the B station.
Accumulated in station DR. The DR in the B station CS operates the B station RS based on information (B), determines that it is going to the C station, and connects to the terminal for the lower station C. Same as the previous station A
If the RS completes its operation at the signal ts , the signal current of information (B) disappears before the B station RS and does not reach the C station. When the starting station CD generates (C) in the exchange connection information, the signal C is accumulated in the A station DR, B station DR, and C station DR. The C station DR determines the number of the unit in its own station (one unit is 10,000 terminals, numbers 0000 to 0000) according to information (C).
9999 subscriber group)). (XBC・
The area number information is indicated by the symbol (・) in
CP decides. As shown in Figure 5-3, the information recorded in the DR of each station is XBC/Z* for station A and XBC/Z* for station B.
BC.Z*, and the C station is C.Z*, but the time point at which the final * is recorded is the same. However, if you choose a fast element, the result will be within t n in Figure 5-2.
This allows the selective continuation of the RS to be completed. Therefore, the signal current that disappears before each station RS is not the entire pulse, but the preceding portion. FIG. 5-4 shows the timing when a portion is removed. Sensitive device that operates even if part of the signal current is cut off
In the case of DR, for example, in the B station CS, the signal X emitted by the A station CD is reduced until the operation of the A station RS is completed, and the remaining energy can be received and stored. In Figure 5-4, (in front of A station RS) means A station DR.
The information stored in is [XBC・Z*] (B
(before station RS) is the information accumulated in station B DR [XBC・Z*]. The shaved part of the signal current (X) is indicated by diagonal lines, and the remaining width is a narrow current.
If DR does not operate, it is [BC・Z*]. During the signal current of information (B), the B station RS is connected to the terminal for the lower station, and the connection information is sent with a part of the current (B) cut off. After the B station RS is before the C station DR, the signal current of (B) that has been cut first arrives, and the current of information (X) does not arrive. Then, information (C) arrives and information (BC・Z*) is recorded in the C station DR.
A station DR has information (XBC・Z*), B station DR has (XBC・Z*) or [BC・Z*], and C station DR has (BC・Z*) or (C・Z*). . By delaying the information by the time required to complete this removed portion, the RS operation, the signal current can reach the DR in its completed form. In the case of a normal compatible network, the upper digits of the information are not required at the lower station, and the B station
Information (B) in DR is sufficient. In the case of unsupported networks or detour relays, all information may be required at each lower station. The switch in the CS is switched by the final signal marked *, and the number information of the telephone trunk line which has already been decided is sent, and this time is O ta , O tb , . . . in Fig. 5-3. Time to receive incoming information of lower station I tb , I t
c overlaps with these. Based on the incoming line information, each station control circuit AC, BC, etc. instructs the husband's connection mechanism AX, BX, CX, etc. to link the default outgoing line and incoming line, and sets the connection times C ta , C tb , C tc After that, the input and output lines are connected. See also Figure 5-5. Even if the switching connection information is omitted from the beginning, there is no fear that the receiving lower station will not know which digit of the original information the first digit of the received information is. In the actual installation of signal lines, there is a distinction for incoming signal lines as to whether the upper station is a general station, a central station, or a central station.
It is obvious which digit in the original order the first place in the input information is. FIG. 5-5 is a timing table that takes into consideration the time F t for acquiring the call outgoing line, etc. At station A, the point in time when the outgoing line is determined at the first digit is as shown in the figure, and since the incoming line is already known first by the calling subscriber, the incoming and outgoing lines are determined while the connection information is flowing to the lower station. Lines are linked. Outgoing line information is sent to lower stations from the end of S g2 to time O ta . At station B, the call outgoing line is found at the second digit, so the point in time is F tb in the diagram. At station C, subscriber Z is identified immediately after S g2 . However, during these time periods, outgoing line information is sent to the lower stations, and links between incoming and outgoing trunk lines are prepared, and the receiving time I t is the same for each station, so the linking time C t is also It is the same time period. It goes without saying that the operation of detecting the outgoing line of each station can be started after S g1 by identifying the mark [.] in the information [XBC・Z*]. If we put the above together, as is clear from Figure 5-5, the connection time T for the entire system is T = S g + I t (= O t ) + C t , and the waiting time for the completion of the RS operation is Considering the delay d caused by the delay circuit D, (N-1)d is added to T, assuming the number of stations is N. However, since d is small, this influence is ignored. On the other hand, since conventional technology uses a step-by-step or link-by-link method,
Delivery of connection information from one station to lower-level stations is carried out after the outgoing line is determined. Furthermore, since the outgoing line is linked with the incoming line, the line is disconnected, so the connection time also depends on the linking time C t and becomes T'=N(S g +F t +C t +I t ). That is, T1/NT'. Communication path opening test and CS release At the terminating station, the callee Z and the incoming line were linked, completing the connection of the communication system. The terminating station subscriber line device sends a connection completion signal C g to the preceding station via a trunk line (not necessarily a communication line). The signal C g passes through to the originating station, and in response to this, each station I releases its own station CS and uses it for another call. It is optional for the originating station to receive C g at the beginning of a call to activate the billing device or perform other purposes. Temporary release and temporary reconnection of call path Calling party U makes a business inquiry to called party Z,
U tells him the location of the record file, and the line is put on hold while U searches the cupboard. Another object of the present invention is to release the useless hold during a call at any time and to re-continue the call at any time. According to an embodiment of the present invention, in FIG. 3-1 or 3-3, a release signal R sg is sent out at any time according to instructions from subscriber Z, and each station I sends not only C g but also R sg . It is detected and the communication path is released via the control circuit. R sg penetrates to the terminal station before the communication path is released. In the case mentioned above, if U finds the document and wants to make the call again, he will send the instructions to A's register R.
send to R re-issues the signal for selecting the called party, and after passing through CD, the communication path is resumed within a very short period of time as described above. The above functions eliminate the idle time during long calls, free up the communication path for other calls, and do not cause any discomfort or inconvenience to the callers when reusing it. You can find a way to not feel it. The signal R sg can be sent by the calling party U.
【特許請求の範囲】[Claims]
１ 縦属する交換局を包含する通信系において、
交換接続用情報信号を専用に伝送する線路的手段
と、該手段に接続されて情報信号を並列に受信し
て記録する手段と、この分岐入力した情報信号を
識別して次位局むけの信号伝送路を撰択開通する
手段とを具備することを特徴とする交換方式。
２ 特許請求範囲１の記載の交換方式において通
話路完通の信号を発生する手段と、各交換局にお
いて該信号を識別して専用信号線に係る手段を解
放する手段とを具備する交換方式。
３ 特許請求範囲１の記載の交換方式において更
に臨時的解放信号を発生する手段と、各交換局に
於てこれを識別して通話路を臨時的解放する手段
と、更に被呼者呼出し信号を再接続用に発する手
段とを具備する交換方式。
1. In a communication system that includes vertical exchanges,
A line-like means for exclusively transmitting the information signal for exchange connection, a means connected to the means for receiving and recording information signals in parallel, and a means for identifying the branched input information signal and transmitting it as a signal for the next station. An exchange method characterized by comprising means for selectively opening a transmission path. 2. A switching system according to claim 1, which comprises means for generating a signal indicating that the communication path is complete, and means for identifying the signal at each switching center and releasing means for the dedicated signal line. 3. In the switching system described in claim 1, there is further provided means for generating a temporary release signal, means for identifying this at each switching center and temporarily releasing the communication path, and further providing a called party paging signal. and a means for issuing a reconnection.