KR950022575A - Transceiver audio signal level adjustment circuit - Google Patents

Transceiver audio signal level adjustment circuit Download PDF

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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
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KR
South Korea
Prior art keywords
signal
transmission
reception
level adjusting
decoder
Prior art date
Application number
KR1019930030351A
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Korean (ko)
Inventor
김남수
Original Assignee
박성규
대우통신 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 박성규, 대우통신 주식회사 filed Critical 박성규
Priority to KR1019930030351A priority Critical patent/KR950022575A/en
Publication of KR950022575A publication Critical patent/KR950022575A/en

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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

송수신 음성 신호 레벨 조정회로.Transmission and reception audio signal level adjustment circuit.

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)

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 신호레벨 조정수단(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 구성된 것을 특징으로 하는 송수신 음성 신호 레벨 조정회로.A subscriber line side is formed with a bidirectional two-wire loop, and the call path side is connected to four unidirectional lines in which transmission and reception signals are separated, and the transmission and reception call separation means for separating transmission and reception signals 10; Transmission and reception signal level adjusting means for controlling the level of the transmission and reception signal and simultaneously suppressing side tones regardless of the transmission and reception signal; And a decoder 30 which converts the analog signal output from the separating means 10 into a digital signal and transmits the digital signal, and converts the transmitted digital signal into an analog signal and inputs the signal to the transmit / receive signal level adjusting means 20. Transmitting and receiving audio signal level adjusting circuit. 제1항에 있어서, 상기 송수신 신호레벨 조정수단(20)은 전송된 디지탈 신호를 아날로그 신호로 변환하고 반대로 전송되는 아날로그 신호 디지탈 신호는 변환하여 출력하는 디코더(30)와 접속되어 상기 디코더(30)에서 출력된 아날로그 신호를 증폭하여 상기 송수신 통화로 분리수단(10)에 공급하는 연산증폭기(OP3)와; 상기 디코더(30)에서 출력된 아날로그 신호와 연산증폭기(OP3)에서 출력된 신호들을 입력으로 하여 차동증폭한 후 상기 디코더(30)에 공급하는 연산증폭기(OP4)와; 상기 송수신 통화로 분리수단(10)에서 출력된 두 신호들을 입력으로 하여 비교 증폭한 수 디코더(30)에 공급하는 연산증폭기(OP5)로 구성된 것을 특징으로 하는 송수신 음성 신호 레벨 조정회로.The apparatus of claim 1, wherein the transmission and reception signal level adjusting means (20) is connected to a decoder (30) which converts the transmitted digital signal into an analog signal and vice versa. An operational amplifier (OP3) for amplifying the analog signal output from the amplification unit and supplying it to the transmission / reception means (10); An operational amplifier (OP4) for differentially inputting the analog signal output from the decoder (30) and the signals output from the operational amplifier (OP3) and supplying the differential amplifier to the decoder (30); Transmitting and receiving voice signal level adjusting circuit, characterized in that it consists of an operational amplifier (OP5) for supplying the two signals outputted from the transmitting and receiving call separation means (10) to the comparison and amplified decoder 30. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930030351A 1993-12-28 1993-12-28 Transceiver audio signal level adjustment circuit KR950022575A (en)

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

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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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