JPS59216361A - Conference communication trunk - Google Patents
Conference communication trunkInfo
- Publication number
- JPS59216361A JPS59216361A JP9170783A JP9170783A JPS59216361A JP S59216361 A JPS59216361 A JP S59216361A JP 9170783 A JP9170783 A JP 9170783A JP 9170783 A JP9170783 A JP 9170783A JP S59216361 A JPS59216361 A JP S59216361A
- Authority
- JP
- Japan
- Prior art keywords
- conference
- wire
- promoter
- amplifiers
- attendants
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
- H04M3/569—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants using the instant speaker's algorithm
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は電話交換機において、会議通話を実現するた
めの会議通話トランクに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conference call trunk for realizing conference calls in a telephone exchange.
一般に会議通話トランクは、第１図に示す様に、交換機
のスイッチネットワークに収容され、従来の会議通話ト
ランクの一構成例としては第２図に示すものがあった。Generally, a conference call trunk is accommodated in a switch network of an exchange, as shown in FIG. 1, and an example of the configuration of a conventional conference call trunk is shown in FIG. 2.
第１図において、１は交換機、２は交換機１に収容され
る端末−トランク間の接続を行なうスイッチネットワー
ク、３は会議通話トランク、４は加入者電話機である。In FIG. 1, 1 is an exchange, 2 is a switch network for connecting terminals accommodated in the exchange 1 and trunks, 3 is a conference call trunk, and 4 is a subscriber telephone.
第２図において、５８〜５ｚは２線−４線変換回路、６
ａ〜６ｚは一定の増幅率を持ち、２線−４線牢換回路５
ａ〜５ｚの出力を増幅する増幅器、７は増幅器６ａ〜６
ｚの出力を加算しその出カフａ〜７ｚに出力する加算回
路である。In Fig. 2, 58 to 5z are 2-wire to 4-wire conversion circuits, 6
a to 6z have a constant amplification factor, and the 2-wire to 4-wire switching circuit 5
An amplifier that amplifies the output of a to 5z, 7 is an amplifier 6a to 6
This is an addition circuit that adds the outputs of z and outputs it to output cuffs a to 7z.
次に動作について説明゛する。加入者電話機４ａ〜４ｚ
からスイッチネットワーク２を通って、会議通話トラン
ク３に加えられた音声信号は、２線＝４線変換回路５ａ
〜５ｚを経て一定の増Ｉ陥率を持つ増幅器６ａ〜６ｚに
て増幅される。この出方が加算回路７にて加算され、そ
の加算出方７ａ〜７ｚは再び２線−４線変換回路５ａ〜
５ｚに加えられて、スイッチネットワーク２を通り、電
話機４ａ〜４ｚに戻される。加算回路７はその出カフａ
〜７ｚに対応するもの以外の増幅器出力の加算を行なう
様に構成されており、その結果各電話機４ａ〜４ｚには
自分自身を除く全会議参加者の音声が均等に聞えること
になる。Next, the operation will be explained. Subscriber telephones 4a to 4z
The audio signal applied to the conference call trunk 3 through the switch network 2 is transferred to the 2-wire=4-wire conversion circuit 5a.
~5z, and is amplified by amplifiers 6a~6z having a constant I increase rate. These outputs are added in the adding circuit 7, and the added outputs 7a to 7z are again added to the 2-wire to 4-wire conversion circuits 5a to 7z.
5z, passes through the switch network 2, and is returned to the telephones 4a-4z. The adder circuit 7 outputs its output a
The telephones 4a to 4z are configured to add the outputs of amplifiers other than those corresponding to the telephones 4a to 7z, and as a result, each telephone 4a to 4z can equally hear the voices of all conference participants except for the telephone 4a to 4z.
従来の会議通話トランクは以上のように構成されている
ので、各会議参加者（電話機）の発言権、即ち送話権は
平等であり、同時に多数が発言すると、その単純加算結
果が各参加者に問えることになる。このため、会議参加
者が多数の場合、同時に多数が発言すると個々の発言内
容が理解できないばかりか、会議の進行が妨書されると
いう欠点があった。Conventional conference call trunks are configured as described above, so each conference participant (telephone) has the same right to speak, that is, the right to speak, and when many people speak at the same time, the result of simple addition is the same for each participant. You can ask. For this reason, when there are a large number of participants in a conference, if many people speak at the same time, there is a drawback that not only can the contents of each person's comments not be understood, but the progress of the conference can be interrupted.
この発明は上記のような従来のものの欠点を除去するた
めになされたもので、会議主催者に優先権を持たせ、多
人数が同時に発言した場合にも、会議主催者の音声を優
先させ、会議主催者の音声の明瞭度が極端に低下するこ
とのない会議通話トランクを提供することを目的として
いる。This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and it gives priority to the conference organizer, and even when many people speak at the same time, the conference organizer's voice takes priority. The purpose of the present invention is to provide a conference call trunk in which the intelligibility of a conference organizer's voice is not extremely degraded.
以下、この発明の一実施例を図について説明する。第３
図において、５ ａｌ は会議主催者用の２線−４線変
換回路で、構成は第２図の５ａと同じである。８ｂ〜８
ｚは会議主催者以外の参加者用の増幅率可変増幅器、９
は増幅器６ａの出力レベルを測定しこれに応じて増幅率
可変増幅器８ｂ〜８ｚの増幅度を制御するレベル検出器
である。An embodiment of the present invention will be described below with reference to the drawings. Third
In the figure, 5al is a 2-wire to 4-wire conversion circuit for the conference organizer, and its configuration is the same as 5a in FIG. 8b~8
z is a variable gain amplifier for participants other than the conference organizer; 9
is a level detector that measures the output level of the amplifier 6a and controls the amplification of the variable amplification factor amplifiers 8b to 8z accordingly.
次に動作について説明する。Next, the operation will be explained.
会ｉ！ｌｌ１ｉ！ｉ話開始時にスイッチネットワーク２
により会議参加電話機を会議トランク３に接続するが、
この際、会議主催者の電話機は必ず会議主催者用の２線
−４線変換回路５ ａｌ に接続する。会議主催者以外
が発言した場合の動作は従来方式と同様である。一方、
会議主催者が発言した場合、レベル検出器９の出力が他
の会議参加者用の増幅率可変増幅器８ｂ〜８ｚに加えら
れ、その増幅率を下げる様に制御する。Meeting i! ll1i! switch network 2 at the start of i-episode
connects the conference participant phone to conference trunk 3 by
At this time, the conference organizer's telephone is always connected to the 2-wire to 4-wire conversion circuit 5 al for the conference organizer. The operation when someone other than the conference organizer speaks is the same as the conventional method. on the other hand,
When the conference organizer speaks, the output of the level detector 9 is applied to variable amplification factor amplifiers 8b to 8z for other conference participants, and the amplification factors are controlled to be lowered.
なお、上記実施例では２線式の場合を示したが、電話機
端末またはスイッチネットワークが４線式の場合には会
議トランクの中に２線−４線変換回路５は不要である。In the above embodiment, a two-wire system is shown, but if the telephone terminal or switch network is a four-wire system, the 2-wire to 4-wire conversion circuit 5 is not required in the conference trunk.
以上のように、この発明によれば、会議主催者が発言し
た場合、そのレベルを検出し、他の参加者の増幅器の増
幅率を下げる様にしたので、会議主催者の発言が優先さ
れ、会議主催者を含む多人数が同時に発言した場合にも
、会議主催者の音声の明瞭度は極端に低下することがな
いという効果があり、またこれにより会議の進行が容易
になるという効果がある。As described above, according to the present invention, when the conference organizer speaks, the level is detected and the amplification factor of the amplifiers of other participants is lowered, so that the conference organizer's remarks are given priority. Even when many people including the conference organizer speak at the same time, the intelligibility of the conference organizer's voice does not deteriorate significantly, and this also has the effect of facilitating the progress of the conference. .
第１図は交換機と会議通話トランク、電話機端末の位置
関係を示す図、第２図は従来の会議通話トランクの構成
図、第３図は本発明の一実施例による会議通話トランク
の構成図である。
１・・・交換機、２・・・スイッチネットワーク、３・
・・会議通話トランク、４・・・電話機陪未、６ａ・・
・増幅器、８箋〜８ｚ・・・増幅率可変増幅器、９・・
・レベル検出器。
なお図中、同一符号は同−又は相当部分を示す。
代理人 大 岩 増 雄
第１図
第２図
第３図FIG. 1 is a diagram showing the positional relationship between an exchange, a conference call trunk, and a telephone terminal, FIG. 2 is a configuration diagram of a conventional conference call trunk, and FIG. 3 is a configuration diagram of a conference call trunk according to an embodiment of the present invention. be. 1... Exchange, 2... Switch network, 3.
...Conference call trunk, 4...Telephone connection, 6a...
・Amplifier, 8 to 8z... Variable amplification factor amplifier, 9...
・Level detector. In the drawings, the same reference numerals indicate the same or equivalent parts. Agent Masuo Oiwa Figure 1 Figure 2 Figure 3
Claims (1)
して接続され複数の加入者の電話会議を可能とする会議
通話トランクであって、会議主催者の音声増幅用に設け
られた増幅器と、他の会議参加者の音声増幅用に設けら
れた増幅率可変増幅器の増幅率を低下させるレベル検出
器とを備えたことを特徴とする会議通話トランク。(11) A conference call trunk that is connected to a plurality of subscriber telephones via a switch network to enable a multi-subscriber conference call, and includes an amplifier provided for audio amplification of the conference organizer and a A conference call trunk characterized by comprising a level detector that lowers the amplification factor of a variable amplification factor amplifier provided for amplifying the voices of participants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9170783A JPS59216361A (en) | 1983-05-23 | 1983-05-23 | Conference communication trunk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9170783A JPS59216361A (en) | 1983-05-23 | 1983-05-23 | Conference communication trunk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59216361A true JPS59216361A (en) | 1984-12-06 |
Family
ID=14033982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9170783A Pending JPS59216361A (en) | 1983-05-23 | 1983-05-23 | Conference communication trunk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59216361A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0380164A1 (en) * | 1989-01-24 | 1990-08-01 | Philips Patentverwaltung GmbH | Circuit arrangement for establishing conference connections on a loop |
| JPH06303324A (en) * | 1993-04-14 | 1994-10-28 | Mitsubishi Electric Corp | Telephone conference speaking method, exchange and telephone set for the same |
| EP1545111A1 (en) * | 2002-09-27 | 2005-06-22 | Ginganet Corporation | Telephone interpretation aid device and telephone interpretation system using the same |
| EP1545109A1 (en) * | 2002-09-27 | 2005-06-22 | Ginganet Corporation | Video telephone interpretation system and video telephone interpretation method |
| EP1545110A1 (en) * | 2002-09-27 | 2005-06-22 | Ginganet Corporation | Telephone interpretation system |
-
1983
- 1983-05-23 JP JP9170783A patent/JPS59216361A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0380164A1 (en) * | 1989-01-24 | 1990-08-01 | Philips Patentverwaltung GmbH | Circuit arrangement for establishing conference connections on a loop |
| JPH06303324A (en) * | 1993-04-14 | 1994-10-28 | Mitsubishi Electric Corp | Telephone conference speaking method, exchange and telephone set for the same |
| EP1545111A1 (en) * | 2002-09-27 | 2005-06-22 | Ginganet Corporation | Telephone interpretation aid device and telephone interpretation system using the same |
| EP1545109A1 (en) * | 2002-09-27 | 2005-06-22 | Ginganet Corporation | Video telephone interpretation system and video telephone interpretation method |
| EP1545110A1 (en) * | 2002-09-27 | 2005-06-22 | Ginganet Corporation | Telephone interpretation system |
| EP1545111A4 (en) * | 2002-09-27 | 2006-05-03 | Ginganet Corp | Telephone interpretation aid device and telephone interpretation system using the same |
| EP1545109A4 (en) * | 2002-09-27 | 2006-05-03 | Ginganet Corp | Video telephone interpretation system and video telephone interpretation method |
| EP1545110A4 (en) * | 2002-09-27 | 2006-05-03 | Ginganet Corp | Telephone interpretation system |
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