JPS6428055U - - Google Patents
Info
- Publication number
- JPS6428055U JPS6428055U JP12140387U JP12140387U JPS6428055U JP S6428055 U JPS6428055 U JP S6428055U JP 12140387 U JP12140387 U JP 12140387U JP 12140387 U JP12140387 U JP 12140387U JP S6428055 U JPS6428055 U JP S6428055U
- Authority
- JP
- Japan
- Prior art keywords
- hands
- transmitting
- receiving
- free terminal
- signal
- 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
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Description
第３図は従来の音声スイツチ方式ハンズ・フリ
ー端末機のブロツク図、第１図、第２図は本考案
の一実施例を示す。
１：受信端子、２，７：可変減衰器、３：送信
器、４，９：信号検出回路、５：比較回路、６：
送話端子、８：送信端子、１０：振幅変調器、１
１：発振器、１２：低域通過フイルタ、１３：受
信器、１４：復調器、１５：アンプ、１６：イヤ
ホン。
FIG. 3 is a block diagram of a conventional voice switch type hands-free terminal, and FIGS. 1 and 2 show an embodiment of the present invention. 1: Receiving terminal, 2, 7: Variable attenuator, 3: Transmitter, 4, 9: Signal detection circuit, 5: Comparison circuit, 6:
Transmission terminal, 8: Transmission terminal, 10: Amplitude modulator, 1
1: Oscillator, 12: Low pass filter, 13: Receiver, 14: Demodulator, 15: Amplifier, 16: Earphone.
Claims (1)
その信号を送信する送信器と送信信号路に生じる
、音声帯域外信号を除去するための低域通過フイ
ルタを有するハンズ・フリー端末機本体と、本体
から送信された信号を受信し復調するための補聴
形受信器を有するハンズ・フリー端末機。 a hands-free terminal body having an amplitude modulator for modulating a received signal in a receiving signal path, a transmitter for transmitting the signal, and a low-pass filter for removing signals outside the audio band occurring in the transmitting signal path; A hands-free terminal that has a hearing aid type receiver for receiving and demodulating signals transmitted from the main unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12140387U JPS6428055U (en) | 1987-08-10 | 1987-08-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12140387U JPS6428055U (en) | 1987-08-10 | 1987-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6428055U true JPS6428055U (en) | 1989-02-17 |
Family
ID=31368374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12140387U Pending JPS6428055U (en) | 1987-08-10 | 1987-08-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6428055U (en) |
-
1987
- 1987-08-10 JP JP12140387U patent/JPS6428055U/ja active Pending
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