JPH0227845A - Storage type communication processing unit - Google Patents

Storage type communication processing unit

Info

Publication number
JPH0227845A
JPH0227845A JP63176999A JP17699988A JPH0227845A JP H0227845 A JPH0227845 A JP H0227845A JP 63176999 A JP63176999 A JP 63176999A JP 17699988 A JP17699988 A JP 17699988A JP H0227845 A JPH0227845 A JP H0227845A
Authority
JP
Japan
Prior art keywords
call
transmission
communication
result
information
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
JP63176999A
Other languages
Japanese (ja)
Inventor
Tomoyoshi Haneda
羽田 知良
Hisato Miyaji
寿人 宮地
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP63176999A priority Critical patent/JPH0227845A/en
Publication of JPH0227845A publication Critical patent/JPH0227845A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To inform the process of transmission trials so far with respect to a destination terminal equipment to a caller by providing a communication history storage device storing the result of trial for each transmission trial and a communication result notice equipment. CONSTITUTION:The communication history storage device 9 receives information such as a time of call transmission trial, its result and its cause in the case of disabled transmission from a call transmission controller 6, stores them and gives the information relating to the history of the transmission trials so far as to the designated call by a request from a storage type communication processing unit 5 to the storage type communication processing unit 5. Then a communication result notifying equipment 8 receives the history of the transmission trial from the communication history storage device 9 and informs the result to a caller information input and output terminal equipment 1. Thus, the caller information input and output terminal equipment attains flexible coping in response to the urgency of the call or the state of the incoming terminal equipment while confirming the history of the communication at any time as required.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、例えば通信情報の蓄積機能を有する蓄積形
通信網において、情報の受信、蓄積、送信を行う蓄積形
通信処理装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a storage-type communication processing device that receives, stores, and transmits information in, for example, a storage-type communication network having a communication information storage function.

〔従来の技術〕[Conventional technology]

第5図は蓄積形通信処理サービスを提供する蓄積形情報
通信網の構成を示す図であり、1.2は情報入出力端末
、3.4は交換機、5は蓄積形通信処理装置、6は呼送
信制御装置、7は不達監視装置、8は通信結果通知装置
である。
FIG. 5 is a diagram showing the configuration of a storage type information communication network that provides a storage type communication processing service, in which 1.2 is an information input/output terminal, 3.4 is a switch, 5 is a storage type communication processing device, and 6 is a diagram showing the configuration of a storage type information communication network that provides storage type communication processing services. 7 is a call transmission control device, 7 is a non-delivery monitoring device, and 8 is a communication result notification device.

第6図のフローチャートを参照して第5図の蓄積形情報
通信綱の作用を説明する。なお、 (1)〜(9)は各
ステップを示す。
The operation of the storage type information communication line shown in FIG. 5 will be explained with reference to the flowchart shown in FIG. Note that (1) to (9) indicate each step.

情報入出力端末1より発信された呼の情報は、交換機3
を経由して蓄積形通信処理装置5に蓄積される(1) 
、 (2)。呼送信制御装置6において・、交換機4を
経由して着信端末となる情報入出力端末2の状態(呼受
信可能、使用中、電源断、故障中など)を確認し、呼を
送信することが可能であるかどうかを判定する (3)
0判定の結果、呼の送信が可能であれば交換機4を経由
して蓄積した呼を情報入出力端末2に送信する (4)
。呼が情報入出力端末2に正常に送達されたとき、通信
結果通知装置8により呼が送達したことを発信側の情報
入出力端末1に通知する (5)。
The information on the call originating from the information input/output terminal 1 is sent to the exchange 3.
is stored in the storage type communication processing device 5 via (1)
, (2). The call transmission control device 6 checks the status of the information input/output terminal 2 which is the receiving terminal via the exchange 4 (call reception possible, in use, power off, out of order, etc.) and transmits the call. Determine whether it is possible (3)
As a result of the 0 judgment, if the call can be sent, the accumulated call is sent to the information input/output terminal 2 via the exchange 4 (4)
. When the call is successfully delivered to the information input/output terminal 2, the communication result notification device 8 notifies the information input/output terminal 1 on the calling side that the call has been delivered (5).

また、ステップ (3)において、情報入出力端末2が
他の呼により使用中であったり、電源断や故障のため呼
を送信することが不能な場合には、装置内に呼を待機さ
せる。ここで、不達監視装置7において、呼の送信が不
能となフた原因(情報入出力端末2の状態)を判定して
、送信再試行までのタイミングと最大試行回数を規定す
るとともに、該呼のそれまでの送信試行回数を計測する
(6)。送信試行回数が最大試行回数に達していない場
合、規定されたタイミングが経過した後、呼送信制御装
置6において情報入出力端末2への送信を再試行する。
Further, in step (3), if the information input/output terminal 2 is in use for another call or is unable to transmit the call due to power outage or failure, the call is placed on standby within the device. Here, the non-delivery monitoring device 7 determines the cause of the inability to send the call (the status of the information input/output terminal 2), stipulates the timing and maximum number of attempts until the transmission is retried, and The number of previous transmission attempts of the call is counted (6). If the number of transmission attempts has not reached the maximum number of attempts, the call transmission control device 6 retries transmission to the information input/output terminal 2 after a specified timing has elapsed.

(7) 、 (8)。再試行時もなお送信不能であれば
再度呼を待機させる。再試行により呼が送達できた場合
、通信結果通知装置8により呼が送達されたことを発信
側の情報入出力端末1に通知する。送信試行回数が最大
試行回数に達してなお送信不能な場合には、不達監視装
置7において該通信の結果を不達と判定し、通信結果通
知装置8により呼が不達となりたことを発信側の情報入
出力端末1に通知する(9)。
(7), (8). If it is still not possible to send the call even after retrying, the call is placed on standby again. If the call is successfully delivered after a retry, the communication result notification device 8 notifies the information input/output terminal 1 on the calling side that the call has been delivered. If the number of transmission attempts reaches the maximum number of attempts and transmission is still not possible, the non-delivery monitoring device 7 determines the result of the communication as non-delivery, and the communication result notification device 8 sends a notification that the call was non-delivery. The information input/output terminal 1 on the side is notified (9).

(発明が解決しようとする課題〕 上記のように構成される蓄積形通信処理装置では、呼を
正常に送達するか、または不達と判定したとき、初めて
該呼の発信者に通信結果(送達または不達)を通知する
。しかし、呼を送信再試行などのため装置内に待機させ
ている間は、発信者に通信の状況を知らしめる手段がな
かった。そのため、着信側の端末の事情から装置内にて
送信再試行が繰返され呼の待機時間が長びいても発信者
には何の情報も与えられず、その時々の状況に応じた柔
軟な対処(例えば緊急を要する通信では代替の通信手段
を考慮するなど)ができないという問題点があった。ま
た、蓄積形通信処理装置にて呼が不達と判定されたとき
、発信者は呼が不達となったことは通知されるが、それ
までの送信試行の経過に関する情報が与えられないこと
から、次善の手段としてどうすべきかを判断することが
困難でありた。
(Problems to be Solved by the Invention) In the storage-type communication processing device configured as described above, only when the call is successfully delivered or is determined to be non-delivery, the communication result (delivery) is sent to the originator of the call. However, there was no way to inform the caller of the communication status while the call was on standby in the device for retrying. Even if the call wait time is extended due to repeated transmission retries within the device, the caller is not given any information, and the caller can take flexible measures depending on the situation at the time (for example, in case of urgent communication, alternative In addition, when the storage type communication processing device determines that a call has not been delivered, the caller is not notified that the call has not been delivered. However, since no information was provided regarding the progress of previous transmission attempts, it was difficult to determine the next best option.

この発明は、上記にかんがみてなされたもので、その目
的とするところは、呼の発信者に対し着信端末へのそれ
までの送信試行の経過を通知することのできる蓄積形通
信処理装置を提供することにある。
The present invention has been made in view of the above, and its purpose is to provide a storage type communication processing device that can notify a call originator of the progress of previous transmission attempts to a receiving terminal. It's about doing.

(課題を解決するための手段) この発明の蓄積形通信処理装置は、着信端末である情報
入出力端末へ情報の送信を行うとともに、この送信が不
能であるとき、送信を再試行する呼送信制御装置と、送
信試行ごとに試行結果を記憶する通信経過記憶装置と、
送信試行回数を計測し通信結果を不達と判定する不達監
視装置と、少なくとも1回以上着信側の情報入出力端子
に対する情報の到達が不能であったとき発信側の情報入
出力端末にそれまでに行った送信試行の経過を通知する
通信結果通知装置からなるものである。
(Means for Solving the Problems) A storage type communication processing device of the present invention transmits information to an information input/output terminal that is a receiving terminal, and also transmits a call to retry the transmission when this transmission is impossible. a control device; a communication progress storage device that stores trial results for each transmission attempt;
A non-delivery monitoring device that measures the number of transmission attempts and determines the communication result as non-delivery; and a non-delivery monitoring device that measures the number of transmission attempts and determines the communication result as non-delivery; It consists of a communication result notification device that notifies you of the progress of transmission attempts made so far.

(作用) この発明の蓄積形通信処理装置では、呼が正常に着信側
の情報入出力端末に到達されていないと判定されたとき
、少なくとも発信側の情報入出力端末に送信試行の経過
を通知する。
(Operation) In the storage type communication processing device of the present invention, when it is determined that the call has not successfully reached the information input/output terminal on the called side, at least the information input/output terminal on the calling side is notified of the progress of the transmission attempt. do.

〔実施例〕〔Example〕

以下、図面を参照してこの発明の一実施例を説明する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

第1図はこの発明の一実施例を示す構成図である。同図
の実施例は、第5図に示す従来例の蓄積形通信処理装置
5において呼送信制御装置6に通信経過記憶装置9を接
続したものであり、その他の1〜8の符号は第5図と同
じものを示す。
FIG. 1 is a block diagram showing an embodiment of the present invention. In the embodiment shown in the figure, a communication progress storage device 9 is connected to a call transmission control device 6 in the conventional storage type communication processing device 5 shown in FIG. Shows the same thing as the figure.

通信経過記憶装置9は、呼送信制御装置6より呼の送信
試行の時刻とその結果、および送信不能の場合はその原
因などの情報を提供されてこれらを記憶し、蓄積形通信
処理装置5からの要求により、指定された呼のそれまで
の送信試行の経過に関する前記の情報を蓄積形通信処理
装置5に供給するものである。呼送信制御装置6は呼の
送信試行ごとに、時刻とその結果、および送信不能の場
合の原因などの情報を通信経過記憶装置9に送信する機
能と、通信結果通知装置8には送信試行の経過を通信経
過記憶装置9により受信して発信側の情報入出力端末1
に通知する機能を有する。
The communication progress storage device 9 is provided with information such as the time and result of the call transmission attempt from the call transmission control device 6, and the cause if transmission is not possible, and stores this information. In response to the request, the above-mentioned information regarding the progress of previous transmission attempts of the designated call is supplied to the storage type communication processing device 5. The call transmission control device 6 has a function of transmitting information such as the time and result, and the cause in case transmission is not possible, to the communication progress storage device 9 for each call transmission attempt, and the communication result notification device 8 has a function of transmitting information such as the time and result, and the cause of the transmission attempt. The information input/output terminal 1 on the sending side receives the progress through the communication progress storage device 9.
It has a function to notify.

次に、第2図のフローチャートを参照して第1図の実施
例の作用を説明する。なお(11)〜(25)は各ステ
ップを示す。
Next, the operation of the embodiment shown in FIG. 1 will be explained with reference to the flowchart shown in FIG. Note that (11) to (25) indicate each step.

発信端末である情報入出力端末1より発信された呼の情
報は、交換機3を経由して蓄積形通信処理装置5に蓄積
される(11) 、 (12) 、蓄積形通信処理装置
5は、呼送信制御装置6において交換機4を経由して着
信端末となる情報入出力端末2の状態を確認し、呼を送
信することが可能であるかどうかを判定する(13)。
The information on the call originated from the information input/output terminal 1, which is the originating terminal, is stored in the storage type communication processing device 5 via the exchange 3 (11), (12), and the storage type communication processing device 5 The call transmission control device 6 checks the status of the information input/output terminal 2, which is the receiving terminal, via the exchange 4, and determines whether it is possible to transmit the call (13).

判定の結果、呼の送信が可能であれば交換機4を経由し
て蓄積した呼を情報入出力端末2に送信する(14)。
As a result of the determination, if the call can be transmitted, the accumulated call is transmitted to the information input/output terminal 2 via the exchange 4 (14).

呼が情報入出力端末2に正常に送達されたとき、通信経
過記憶装置9にそれまでの通信経通を間合せ(15)、
通信結果通知装置8により呼が送達したことを発信側の
情報入出力端末1に通知する(1B)。
When the call is successfully delivered to the information input/output terminal 2, the communication history up to that point is stored in the communication history storage device 9 (15);
The communication result notification device 8 notifies the information input/output terminal 1 on the calling side that the call has been delivered (1B).

また、ステップ(13)において、情報入出力端末2が
他の呼により使用中であったり、電源断や故障のため呼
を送信することが不能な場合には、装置内に呼を待機さ
せるとともに、呼送信制御装置6より通信経過記憶装置
9に送信試行の時刻とその結果、および送信不能となっ
た原因などの情報を送信する(17)、不達監視装置7
においては、呼の送信が不能となった原因を判定し、送
信の再試行までのタイミングと最大試行回数を規定する
とともに、該呼のそれまでの送信試行回数を計測する(
ta)、送信試行回数が′最大試行回数に達していない
場合(19)、規定されたタイミングが経由した後、呼
送信制御装置6において情報出力端末2への送信を再試
行する(20)、再試行時もなお送信不能であれば、再
度、呼送信制御装置6より通信経過記憶装置9に送信試
行の時刻とその結果、および送信不能となった原因など
の情報を送信するとともに、呼を待機させる。再試行に
より呼が送達できた場合、通信経過記憶装置9にそれま
での送信試行の経過に関する情報を問い合せ(21) 
、 (22)、通信結果通知装置8により呼が送達され
たこととともに、それまでの送信試行の結果を発信側の
情報入出力端末1に通知する(23)。ステップ(19
)で、送信試行回数が最大試行回数に達してなお送信不
能な場合には、不達監視装置7において該通信の結果を
不達と判定し、通信経過記憶装置9にそれまでの送信試
行の経過に関する情報を問い合せ(24)、通信結果通
知装置8により呼が不達となったこととともに、それま
での送信試行の経過を発信側の情報入出力端末1に通知
する(25)。
In addition, in step (13), if the information input/output terminal 2 is in use for another call or is unable to transmit the call due to a power outage or malfunction, the call is placed on standby within the device and , the call transmission control device 6 transmits information such as the time and result of the transmission attempt, and the cause of the transmission failure to the communication progress storage device 9 (17), the non-delivery monitoring device 7
The method determines the cause of the inability to send a call, specifies the timing and maximum number of attempts before retrying the call, and measures the number of attempts to send the call up to that point (
ta) If the number of transmission attempts has not reached the maximum number of attempts (19), the call transmission control device 6 retries transmission to the information output terminal 2 after the specified timing has passed (20); If transmission is still not possible after retrying, the call transmission control device 6 sends information such as the time and result of the transmission attempt and the cause of the transmission failure again to the communication progress storage device 9, and the call is terminated. Make it standby. If the call is successfully delivered after the retry, the communication history storage device 9 is queried for information regarding the progress of the previous transmission attempts (21).
(22) The communication result notification device 8 notifies the information input/output terminal 1 on the calling side that the call has been delivered and the results of the previous transmission attempts (23). Step (19
), if the number of transmission attempts reaches the maximum number of attempts and the transmission is still not possible, the non-delivery monitoring device 7 determines the result of the communication as non-delivery, and the communication progress storage device 9 stores the previous transmission attempts. Information regarding the progress is inquired (24), and the communication result notifying device 8 notifies the information input/output terminal 1 on the calling side that the call has failed and the progress of the previous transmission attempts (25).

第3図(a)、(b)は書面による送達通知。Figures 3 (a) and (b) are written notices of service.

不達通知の例であり、送信試行の経過と最終的な通信結
果を示している。
This is an example of a non-delivery notification, showing the progress of transmission attempts and the final communication result.

上記において、呼を待機させている間に発信者に通信経
過を通知するとき、通信経過記憶装置9に呼の識別番号
を与え、該呼のそれまでの送信試行の経過に関する情報
を問い合せる0通信結果通知装置8では通信経過記憶装
置9よりこれらの情報を受信し、該呼の送信試行の経過
を発信側の情報入出力端末1に通知する。
In the above, when notifying the caller of the communication progress while the call is on standby, the call identification number is given to the communication progress storage device 9, and information regarding the progress of previous transmission attempts for the call is inquired. The result notification device 8 receives this information from the communication progress storage device 9 and notifies the information input/output terminal 1 on the calling side of the progress of the call transmission attempt.

さらに、呼を待機させている間に、発信者に通信経過お
よびそれ以後の送信試行の経過を通知するとき、通信経
過記憶装置9に呼の識別番号を与え、該呼のそれまでの
送信試行の経過に関する情報を問い合せる。同時に呼送
信制御装置6にも呼の識別番号を与え、該呼のそれ以後
の送信試行の予定に関する情報を問い合せる0通信結果
通知装置8では、通信経過記憶装置9より送信試行の経
過に関する情報を、ざらに呼送信制御装置6より以後の
送信試行の予定時刻や最大試行回数に達するまでの残試
行回数などを受信し、送信試行の経過と合わせて発信側
の端末装置に通知する。
Furthermore, when notifying the caller of the communication progress and the progress of subsequent transmission attempts while the call is on standby, the call identification number is given to the communication progress storage device 9, and the call identification number is given to the communication progress storage device 9, Inquire about information regarding the progress of At the same time, the call identification number is also given to the call transmission control device 6, and the communication result notification device 8 receives information regarding the progress of the transmission attempt from the communication progress storage device 9. , roughly receives from the call transmission control device 6 the scheduled time of subsequent transmission attempts, the number of remaining attempts until reaching the maximum number of attempts, etc., and notifies the calling side terminal device along with the progress of the transmission attempt.

第4図は書面によるこのような通信経過通知の例であり
、その時点までの送信試行の経過と以後の試行予定を示
している。
FIG. 4 is an example of such a communication progress notification in writing, showing the progress of transmission attempts up to that point and the schedule for future attempts.

(発明の効果) 以上説明したようにこの発明は、着信端末である情報入
出力端末へ情報の送信を行うとともに、この送信が不能
であるとき、送信を再試行する呼送信制御装置と、送信
試行ごとに試行結果を記憶する通信経過記憶装置と、送
信試行回数を計測し通信結果を不達と判定する不達監視
装置と、少なくとも1回以上着信側の情報入出力端子に
対する情報の到達が不能であったとき発信側の情報入出
力端末にそれまでに行フた送信試行の経過を通知する通
信結果通知装置とを有するので、発信された呼が正常に
着信側の情報入出力端末に到達されていないと判定され
たとき、少なくとも該呼のそれまでの送信試行の経過を
発信側の情報入出力端末に通知できるので、発信側の情
報入出力端末は必要に応じて随時、通信の経過を確認し
ながら呼の緊急性や着信端末の状態に応じた柔軟な対処
を行うことができる利点がある。
(Effects of the Invention) As explained above, the present invention provides a call transmission control device that transmits information to an information input/output terminal that is a called terminal, and retries the transmission when this transmission is impossible; A communication progress storage device that stores the result of each attempt, a non-delivery monitoring device that measures the number of transmission attempts and determines that the communication result is non-delivery, and a non-delivery monitoring device that stores the result of each transmission attempt, and a non-delivery monitor that measures the number of transmission attempts and determines that the communication result is non-delivery. The communication result notification device notifies the information input/output terminal on the calling side of the progress of the previous transmission attempts if the call is unsuccessful, so that the outgoing call can be successfully sent to the information input/output terminal on the called side. When it is determined that the call has not been reached, at least the progress of previous transmission attempts for the call can be notified to the information input/output terminal on the calling side, so the information input/output terminal on the calling side can update the communication at any time as necessary. This has the advantage of being able to take flexible measures depending on the urgency of the call and the state of the receiving terminal while checking the progress.

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

第1図はこの発明の一実施例を示す構成図、第2図は、
第1図の実施例の作用を示すフローチャート、第3図(
a)、  (t))は書面による送達通知および不達通
知の例を示す図、第4図は書面による通信経過通知の例
を示す図、第5図は従来の情報通信網の一例を示す構成
図、第6図は、第5図の従来例の作用を示すフローチャ
ートである。 図中、1.2は情報入出力端末、3.4は交換機、5は
蓄積形通信処理装置、6は呼送信制御装置、7は不達監
視装置、8は通信結果通知装置、9は通信経過記憶装置
である。 第1図 (b) 第 図 第 図
FIG. 1 is a configuration diagram showing an embodiment of the present invention, and FIG. 2 is a configuration diagram showing an embodiment of the invention.
A flowchart showing the operation of the embodiment shown in FIG. 1, and FIG.
a), (t)) are diagrams showing examples of written delivery notices and non-delivery notices, Figure 4 is a diagram showing an example of written communication progress notices, and Figure 5 is an example of a conventional information communication network. The configuration diagram, FIG. 6, is a flowchart showing the operation of the conventional example shown in FIG. In the figure, 1.2 is an information input/output terminal, 3.4 is a switch, 5 is a storage type communication processing device, 6 is a call transmission control device, 7 is a non-delivery monitoring device, 8 is a communication result notification device, and 9 is a communication device. It is a progress storage device. Figure 1 (b) Figure 1

Claims (1)

【特許請求の範囲】[Claims] 情報通信網の情報入出力端末より発信された呼の情報を
蓄積した後、この情報通信網に接続された他の情報入出
力端末に上記情報を送信する蓄積形通信処理装置におい
て、着信端末である情報入出力端末へ情報の送信を行う
とともに、この送信が不能であるとき、送信を再試行す
る呼送信制御装置と、送信試行ごとに試行結果を記憶す
る通信経過記憶装置と、送信試行回数を計測し通信結果
を不達と判定する不達監視装置と、少なくとも1回以上
着信側の情報入出力端末に対する情報の到達が不能であ
ったとき発信側の情報入出力端末にそれまでに行った送
信試行の経過を通知する通信結果通知装置とを有するこ
とを特徴とする蓄積形通信処理装置。
In a storage-type communication processing device that stores call information originating from an information input/output terminal of an information communication network and then transmits the information to other information input/output terminals connected to this information communication network, A call transmission control device that transmits information to a certain information input/output terminal and retries the transmission if the transmission is impossible, a communication progress storage device that stores the result of each transmission attempt, and the number of transmission attempts. A non-delivery monitoring device that measures the communication result and determines that the communication result is non-delivery; A storage type communication processing device comprising: a communication result notification device that notifies the progress of a transmission attempt.
JP63176999A 1988-07-18 1988-07-18 Storage type communication processing unit Pending JPH0227845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63176999A JPH0227845A (en) 1988-07-18 1988-07-18 Storage type communication processing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63176999A JPH0227845A (en) 1988-07-18 1988-07-18 Storage type communication processing unit

Publications (1)

Publication Number Publication Date
JPH0227845A true JPH0227845A (en) 1990-01-30

Family

ID=16023408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63176999A Pending JPH0227845A (en) 1988-07-18 1988-07-18 Storage type communication processing unit

Country Status (1)

Country Link
JP (1) JPH0227845A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6167314A (en) * 1984-09-11 1986-04-07 Elmec Corp Electromagnetic delay line
JP2004241973A (en) * 2003-02-05 2004-08-26 Nippon Telegr & Teleph Corp <Ntt> Message distribution method, system device, processing program, and recording medium recording the program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6167314A (en) * 1984-09-11 1986-04-07 Elmec Corp Electromagnetic delay line
JP2004241973A (en) * 2003-02-05 2004-08-26 Nippon Telegr & Teleph Corp <Ntt> Message distribution method, system device, processing program, and recording medium recording the program

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