KR930015512A

KR930015512A - Automatic voice level control

Info

Publication number: KR930015512A
Application number: KR1019910025518A
Authority: KR
Inventors: 조재룡
Original assignee: 이헌조; 주식회사 금성사
Priority date: 1991-12-30
Filing date: 1991-12-30
Publication date: 1993-07-24

Abstract

본 발명은 수신음의 레벨이 낮을때 통화자의 목소리가 높아지는 원리를 이용하여 송신음을 메모리에 입력하고 이를 위하여 CPU를 사용하여 자동적으로 수신음의 레벨을 조절할 수 있게 하는 자동 음성레벨 조절장치에 관한 것으로, 특히 공공장소나 공중전화등과 같이 주위의 잡음이 클때 또한 수신음이 귀가 아플정도로 너무 높을 때 수신음이 자동조절되도록 한 것으로 일반전화기나 무선전화기등에 적용이 가능하다.The present invention relates to an automatic voice level control apparatus for inputting a transmission sound into a memory by using a principle that a voice of a caller is raised when the level of a reception sound is low, and for this purpose, automatically adjusting the level of the reception sound using a CPU. In particular, when the surrounding noise is high, such as in public places or public telephones, and when the incoming sound is too high to hurt the ear, the incoming sound is automatically adjusted and can be applied to a general telephone or a wireless telephone.

Description

Automatic voice level control

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 전화기의 구성도, 제3도는 본 발명에 따른 차동증폭기의 입력전압.2 is a configuration diagram of a telephone according to the present invention, and FIG. 3 is an input voltage of a differential amplifier according to the present invention.

Claims

A conversion unit 23 controlled by the CPU 20 and converting and outputting the transmission sound from the talker 14 to the memory unit 21 and the amplification unit 22, and controlled and converted by the CPU 20. A memory unit 21 storing the transmission sound and outputting the transmission sound to the conversion unit 23 and amplified and rectified by receiving the output of the conversion unit 23 to amplify the difference between the reference voltage V The amplification section 22 outputted to the electronic volume section 25, and the initial voltage section 24 controlling the memory section 21, the conversion section 23, and the initial voltage section 24. CPU 20 for applying a value, an initial voltage section 24 for applying the initial voltage controlled from the CPU 20 to the electronic volume section 25, and a signal output from the amplifying section 22 Automatic audio level control device, characterized in that consisting of the electronic volume unit 25 for adjusting the gain of the received sound received.

2. The amplifier of claim 1, wherein the amplifier 22 comprises: an amplifier A ₁ for amplifying the transmission sound output from the converter 23, a diode D ₁ and a capacitor C ₁ for rectifying the amplified output; And a differential amplifier (A ₂ ) configured to amplify the difference between the rectified voltage and the reference voltage (V).

2. The converting section (23) according to claim 1, wherein the converting section (23) converts and outputs a transmission sound, which is an analog signal, as a digital signal to the memory section (21), and the digital section of the memory section (21). Automatic sound level control device, characterized in that consisting of a D / A converter (27) for converting and outputting an analog signal to the amplifier 22.

※ Note: The disclosure is based on the initial application.