JPS61149452U - - Google Patents
Info
- Publication number
- JPS61149452U JPS61149452U JP3219985U JP3219985U JPS61149452U JP S61149452 U JPS61149452 U JP S61149452U JP 3219985 U JP3219985 U JP 3219985U JP 3219985 U JP3219985 U JP 3219985U JP S61149452 U JPS61149452 U JP S61149452U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- detection
- signals
- transmitting
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Telephone Set Structure (AREA)
Description
第２図は従来の構成図、第１図は本考案の一実
施例である。
１：減衰器、２：レベル検出比較器、３：受信
端子、４：受話端子、５：受信信号検出器、６：
送話端子、７：送信信号端子、８：送話信号検出
点、９：遅延回路、１０：減衰器ドライブ信号。
FIG. 2 is a conventional configuration diagram, and FIG. 1 is an embodiment of the present invention. 1: Attenuator, 2: Level detection comparator, 3: Receiving terminal, 4: Receiving terminal, 5: Received signal detector, 6:
Transmission terminal, 7: Transmission signal terminal, 8: Transmission signal detection point, 9: Delay circuit, 10: Attenuator drive signal.
Claims (1)
よび信号を伝送又は遮断できる減衰器を有し、又
送受信信号レベル差を検出し信号レベルの大きな
信号を伝送し異なつた信号路の信号を遮断する信
号検出回路と減衰器ドライブ回路を有し、且つそ
の検出回路と減衰器ドライブ回路の検出時定数を
遅延回路の遅延時間に等しくすることを特徴とし
たハンズ・フリー端末器。 Signal detection has signal delay circuits and attenuators that can transmit or block signals on the transmitting and receiving sides, and also detects the difference in transmitting and receiving signal levels, transmits signals with large signal levels, and blocks signals on different signal paths. 1. A hands-free terminal device comprising a circuit and an attenuator drive circuit, and the detection time constant of the detection circuit and the attenuator drive circuit is made equal to the delay time of the delay circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3219985U JPS61149452U (en) | 1985-03-08 | 1985-03-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3219985U JPS61149452U (en) | 1985-03-08 | 1985-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61149452U true JPS61149452U (en) | 1986-09-16 |
Family
ID=30533495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3219985U Pending JPS61149452U (en) | 1985-03-08 | 1985-03-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61149452U (en) |
-
1985
- 1985-03-08 JP JP3219985U patent/JPS61149452U/ja active Pending
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