KR970009096A - Phone voice level control device - Google Patents
Phone voice level control device Download PDFInfo
- Publication number
- KR970009096A KR970009096A KR1019950023774A KR19950023774A KR970009096A KR 970009096 A KR970009096 A KR 970009096A KR 1019950023774 A KR1019950023774 A KR 1019950023774A KR 19950023774 A KR19950023774 A KR 19950023774A KR 970009096 A KR970009096 A KR 970009096A
- Authority
- KR
- South Korea
- Prior art keywords
- telephone
- signal
- circuit
- voltage
- voice signal
- Prior art date
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- Telephonic Communication Services (AREA)
Abstract
본 발명은 전화 라인을 통해 들어오는 전화 음성레벨을 제어하는 장치에 관한 것이다.The present invention relates to an apparatus for controlling a telephone voice level coming in through a telephone line.
본 발명은 사용자 이용프로그램이 내장되어 있는 중앙마이크로프로세서(100), 전화기의 링 및 팁라인을 통해 들어오는 교류 전원을 직류 전원으로 변환시키는 브리지 회로(101), 교류 호출신호를 받아 이를 적당한 주파수의 링신호로 변경하여 송출하는 링거(102), 외부로부터 사용자의 전화기에 호출이 오고있다는 것을 사용자에게 알리기 위하여 상기 링거(102)의 호출신호를 받아 벨을 울리거나 수화기가 전화기에 올려져 있는 오프후크 상태에서 음성신호를 출력하는 스피커(105), 음성신호를 증폭시키는 증폭기(104), 트랜스미터 및 리시버를 가지고 있어 상대방과 음성신호를 송수신하는 수화기(106), 전화라인을 통하여 수신된 교류성분의 음성신호를 직류성분으로 변환시키는 적분회로(107), 상기 적분회로와 연결되어 적분회로로부터의 전압을 분배하는 전압 분배회로(108). 상기 전압분배회로로부터의 전압이 (-)단자에 연결되며 기준전압(REF)이 (+)단자에 연결되어 두전압을 비교하는 비교기(109), 음성신호가 클 경우 이를 완충시키는 버퍼회로(110), 및 상기 비교기의 출력에 따라 온 또는 오프되어 음성신호를 증폭하는 이득조정회로(111)로 구성된다.The present invention is a central microprocessor (100) having a built-in user use program, bridge circuit 101 for converting the AC power supplied through the ring and the tip line of the telephone to the DC power, ring of the appropriate frequency to receive the AC call signal Ringer 102 that changes to a signal and transmits the call to the user's telephone from the outside, the ringer 102 receives a call signal to ring the ringer or the hand hook is on the telephone state Has a speaker 105 for outputting a voice signal, an amplifier 104 for amplifying the voice signal, a transmitter and a receiver, a handset 106 for transmitting and receiving a voice signal with the other party, and a voice signal of an AC component received through a telephone line An integrating circuit 107 for converting a to a DC component, and connected to the integrating circuit to distribute a voltage from the integrating circuit Voltage distribution circuit 108. The comparator 109 compares the two voltages by connecting the voltage from the voltage distribution circuit to the (-) terminal and the reference voltage REF to the (+) terminal. And a gain adjusting circuit 111 that is turned on or off in accordance with the output of the comparator to amplify the voice signal.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제2도는 본 발명에 따른 전화 음성레벨 제어 장치의 회로 블록도, 제3도는 제2도의 본 발명에 따른 전화 음성레벨 제어 장치의 회로 블록도의 동작을 설명하는 흐름도.FIG. 2 is a circuit block diagram of the telephone voice level control device according to the present invention, and FIG. 3 is a flowchart illustrating the operation of the circuit block diagram of the telephone voice level control device according to the present invention.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950023774A KR970009096A (en) | 1995-07-29 | 1995-07-29 | Phone voice level control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950023774A KR970009096A (en) | 1995-07-29 | 1995-07-29 | Phone voice level control device |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970009096A true KR970009096A (en) | 1997-02-24 |
Family
ID=66541803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950023774A KR970009096A (en) | 1995-07-29 | 1995-07-29 | Phone voice level control device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970009096A (en) |
-
1995
- 1995-07-29 KR KR1019950023774A patent/KR970009096A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Withdrawal due to no request for examination |