JPH01175039U - - Google Patents
Info
- Publication number
- JPH01175039U JPH01175039U JP7190088U JP7190088U JPH01175039U JP H01175039 U JPH01175039 U JP H01175039U JP 7190088 U JP7190088 U JP 7190088U JP 7190088 U JP7190088 U JP 7190088U JP H01175039 U JPH01175039 U JP H01175039U
- Authority
- JP
- Japan
- Prior art keywords
- way communication
- cable
- connects
- communication device
- microphone
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Description
第１図は本考案の第１の実施例のブロツク図、
第２図は本考案の第２の実施例に使用する三者通
話用ケーブルの片側のブロツク図、第３図はこの
三者通話用ケーブルの使用方法の説明図である。
１，１２，１４……マイクロホン、２，１３，
１５……スピーカ、３，１０，１１，１６……増
幅器、４，１７……三者通話用ケーブル、５，６
……電話機、７，８……送受話器、９……三者通
話用送受話器回路。
FIG. 1 is a block diagram of the first embodiment of the present invention;
FIG. 2 is a block diagram of one side of a three-way communication cable used in a second embodiment of the present invention, and FIG. 3 is an explanatory diagram of how to use this three-way communication cable. 1, 12, 14...Microphone, 2, 13,
15... Speaker, 3, 10, 11, 16... Amplifier, 4, 17... Three-way communication cable, 5, 6
...Telephone, 7, 8...Handset, 9...Handset circuit for three-way communication.
Claims (1)
において、ケーブルの一端にマイクロホンを接続
し増幅器を介して他端にスピーカを接続しこれを
２本合せて一対とした三者通話用ケーブルと、２
台の電話機とを含むことを特徴とする三者通話装
置。 A cable for three-way communication that connects a microphone to one end of the cable and connects a speaker to the other end via an amplifier, making a pair of two cables in a three-way communication device that performs calls between three telephone subscribers. and 2
A three-way communication device, characterized in that it includes a telephone set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7190088U JPH01175039U (en) | 1988-05-30 | 1988-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7190088U JPH01175039U (en) | 1988-05-30 | 1988-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01175039U true JPH01175039U (en) | 1989-12-13 |
Family
ID=31297087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7190088U Pending JPH01175039U (en) | 1988-05-30 | 1988-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01175039U (en) |
-
1988
- 1988-05-30 JP JP7190088U patent/JPH01175039U/ja active Pending