KR950022575A - Transceiver audio signal level adjustment circuit - Google Patents
Transceiver audio signal level adjustment circuit Download PDFInfo
- Publication number
- KR950022575A KR950022575A KR1019930030351A KR930030351A KR950022575A KR 950022575 A KR950022575 A KR 950022575A KR 1019930030351 A KR1019930030351 A KR 1019930030351A KR 930030351 A KR930030351 A KR 930030351A KR 950022575 A KR950022575 A KR 950022575A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- transmission
- reception
- level adjusting
- decoder
- Prior art date
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- Interface Circuits In Exchanges (AREA)
Abstract
본 발명은 가입자 선로측은 양방향성 2선 루프가 형성되고 통화로측은 송수신 신호가 분리된 단방향성의 4선으로 접속되어 송수신 신호를 분리하는 송수신 통화로 분리수단(10)과, 송수신 신호의 레벨을 제어함과 동시에 송수신 신호와 관계없이 측음을 억제하는 송수신 신호 레벨 조정 수단(20)과, 상기 송수신 통화로 분리수단(10)에서 출력된 아날로그 신호를 디지탈 신호로 변환하여 전송하고 전송된 디지탈 신호를 아날로그 신호로 변환하여 송수신 신호 레벨 조정수단(20)에 입력하는 디코더(30)로 송수신 신호의 레벨을 독립적으로 제어함과 동시에 측음 억제시 송수신 신호와 관계없이 제어할 수 있는 송수신 음성 신호 레벨 조정회로.According to the present invention, the subscriber line side is formed with a bidirectional two-wire loop, and the call path side is connected to four-way unidirectional lines in which transmission and reception signals are separated. And transmit / receive signal level adjusting means 20 for suppressing sidetones irrespective of the transmitted / receive signal, and converts the analog signal outputted from the transmit / receive call separation means 10 into a digital signal and transmits the digital signal. Transmitting and receiving voice signal level adjusting circuit capable of controlling the level of the transmitting and receiving signal independently by the decoder 30 to convert the signal into the input and receive signal level adjusting means 20, and at the same time, irrespective of the transmitted and received signal when suppressing sidetones.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
도면은 본 발명에 따른 송수신 음성 신호 레벨 조정회로의 실시예시도.Figure is an embodiment of a transmission and reception voice signal level adjustment circuit according to the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930030351A KR950022575A (en) | 1993-12-28 | 1993-12-28 | Transceiver audio signal level adjustment circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930030351A KR950022575A (en) | 1993-12-28 | 1993-12-28 | Transceiver audio signal level adjustment circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
KR950022575A true KR950022575A (en) | 1995-07-28 |
Family
ID=66853527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930030351A KR950022575A (en) | 1993-12-28 | 1993-12-28 | Transceiver audio signal level adjustment circuit |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950022575A (en) |
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1993
- 1993-12-28 KR KR1019930030351A patent/KR950022575A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |