KR940008109B1 - Telephone ringing control circuit - Google Patents

Telephone ringing control circuit Download PDF

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Publication number
KR940008109B1
KR940008109B1 KR1019890017313A KR890017313A KR940008109B1 KR 940008109 B1 KR940008109 B1 KR 940008109B1 KR 1019890017313 A KR1019890017313 A KR 1019890017313A KR 890017313 A KR890017313 A KR 890017313A KR 940008109 B1 KR940008109 B1 KR 940008109B1
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KR
South Korea
Prior art keywords
optical sensor
resistor
speaker
ring signal
transistor
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KR1019890017313A
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Korean (ko)
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KR910010952A (en
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이돈섭
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대우전자 주식회사
김용원
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Priority to KR1019890017313A priority Critical patent/KR940008109B1/en
Publication of KR910010952A publication Critical patent/KR910010952A/en
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Publication of KR940008109B1 publication Critical patent/KR940008109B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers

Abstract

The volumn adjusting circuit includes an optical sensor for sensing the illuminance of a light, a transistor having a base connected to the optical sensor, having a collector connected to a ring signal generator and having an emitter connected to one terminal of a speaker, a first resistor serially connected to the optical sensor, and a second resitor having one terminal connected to the ring generator and the other terminal of the speaker and having the other terminal connected to the first resistor and the optical sensor, thereby automatically adjusting the volumn of the ring signal according to the indoor luminance.

Description

전화기 링 신호의 음량 조절 회로.Volume control circuit for telephone ring signal.

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 링 신호발생기 2 : 광센서(cds)1: Ring Signal Generator 2: Optical Sensor (cds)

3 : 스피커 Q : 트랜지스터3: speaker Q: transistor

R1-R2: 저항R 1 -R 2 : resistance

본 발명은 전화기에서 발생되는 링 신호를 광센서에 의해 실내 조도에 따라 자동으로 음량을 조절할 수 있도록 한 것에 관한 것이다.The present invention relates to a ring signal generated from the telephone to automatically adjust the volume according to the room illumination by the optical sensor.

일반적으로 사용되는 전화기의 음량조절은 링 신호 발생기에서 스피커로 직접 연결되어 스위치 조작에 의해 음량을 조절하도록 되어 있다.In general, the volume control of a telephone is directly connected to a speaker from a ring signal generator to adjust the volume by a switch operation.

따라서 이러한 종래의 음량조절 장치는 음량이 한정되어 있을 뿐만 아니라 상황에 따라 스위치를 조작해야 하는 번거로움과 특히 야간에 링 신호음으로 인해 수면중 방해를 받거나 놀라는 등 많은 문제점이 발생되었던 것이다.Therefore, such a conventional volume control device is not only limited in volume, but has been troublesome to be disturbed or surprised during sleep due to the hassle of operating a switch according to the situation and especially a ring signal at night.

그러므로 본 발명은 상기와 같은 문제점을 해결하고자 안출된 것으로서 광센서를 이용하여 실내 조도가 밝으면 자동으로 신호음이 발생하게 하고, 어두우면 소리가 작게 출력되도록 하는 전화기 링 신호의 음량 조절 회로를 제공함으로서 전화기의 신뢰성 향상에 기여하고자 하는데 본 발명의 목적이 있는 것이다.Therefore, the present invention has been made to solve the above problems by providing a volume control circuit of the telephone ring signal to automatically generate a beeping sound when the room illumination is bright by using an optical sensor, and to output a small sound when it is dark. It is an object of the present invention to contribute to improving the reliability of the telephone.

이하 첨부된 도면에 의해 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.

제1도에서와 같이 링 신호 발생기(1)에서 스피커(3)가 연결된 통상의 음량조절 장치에 있어서, 트랜지스터(Q) 빛의 조도를 감지하는 광센서(2)와 전압을 증가 또는 감소시키는 저항(R1)을 직렬 접속하되 링 신호발생기(1)의 출력신호를 트랜지스터(Q) 콜랙터측과 저항(R1)을 통하여 광센서(2) 및 저항(R2) 사이에 각각 인가하는 한편 트랜지스터(Q) 출력단인 에미터에는 스피커(3) 일측단을 접속하고, 상기 스피커(3)의 타측단자를 저항(R2)과 링 신호 발생기(1)에 연결하여서된 전화기 링 신호의 음량 조절 회로도인 것이다.In the conventional volume control device to which the speaker 3 is connected in the ring signal generator 1 as shown in FIG. 1, the light sensor 2 for detecting the illuminance of the light of the transistor Q and a resistor for increasing or decreasing the voltage (R 1 ) are connected in series, and the output signal of the ring signal generator 1 is applied between the optical sensor 2 and the resistor R 2 through the transistor Q collector side and the resistor R 1 , respectively. (Q) Volume control circuit diagram of the telephone ring signal connected by connecting one end of the speaker 3 to the emitter, which is an output terminal, and connecting the other terminal of the speaker 3 to the resistor R 2 and the ring signal generator 1. It is

상기와 같은 구성으로 이루어진 본 발명의 작용 및 효과를 설명하면 다음과 같다.Referring to the operation and effects of the present invention made of the above configuration is as follows.

먼저 상대방에서 전화가 걸려오면 링 신호 발생기(1)에서 링 신호를 출력하게 되는데 이때 링 신호가 저항(R1)을 거쳐 광센서(2)의 내부저항과 저항(R1)에 의해 분활된후 트랜지스터(Q) 베이스에 바이어스 전압으로 사용됨에 따라 상기 트랜지스터(Q)는 턴온되어 링 신호가 트랜지스터(Q) 콜렉터에서 에미터로 흘러 스피커(3)에 전달되어 링 신호음을 발생하게 된다.After the first, when a call comes from the other side there is to output a ring signal from the ring signal generator (1), wherein the ring signal is divided down through a resistor (R 1) by the internal resistance and the resistance (R 1) of the optical sensor (2) As used as a bias voltage at the base of transistor Q, the transistor Q is turned on so that a ring signal flows from the transistor Q collector to the emitter and is transmitted to the speaker 3 to generate a ring tone.

이때 실내 조도가 어두울 경우에는 광센서(2)의 내부 저항값이 적게되어 트랜지스터(Q)의 콜렉터와 에미터로 흐르는 전류가 증가하여 저항(R1)의 전압강하가 증가하므로 저항(R2)에 흐르는 전류보다 트랜지스터(Q) 베이스에 인가되는 전류가 많아 스피커(3)에 가해지는 전압이 감소하여 링 신호음이 작아지게 된다.At this time, when the room illuminance is dark, the internal resistance of the light sensor 2 decreases, and the current flowing to the collector and emitter of the transistor Q increases, so that the voltage drop of the resistor R 1 increases, thereby increasing the resistance R 2 . Since the current applied to the base of the transistor Q is larger than the current flowing through the transistor, the voltage applied to the speaker 3 decreases, so that the ring signal sound becomes smaller.

그러나 실내 조도가 밝을 경우에는 광센서(2)의 내부 저항값이 커지게 되어 트랜지스터(Q)의 콜렉터와 에미터로 흐르는 전류가 감소하여 저항(R1)의 전압강하가 감소하므로 전류가 저항(R2)으로 많이 흘러 트랜지스터(Q)에는 높은 바이어스 전압을 인가하지 못하여 결과적으로 스피커(3)의 출력전압이 커져 링 신호음이 커지게 되는 것이다.However, when the indoor illuminance is bright, the internal resistance value of the optical sensor 2 increases, and the current flowing to the collector and emitter of the transistor Q decreases, thereby reducing the voltage drop of the resistor R 1 . R 2 ) flows a lot, and a high bias voltage is not applied to the transistor Q. As a result, the output voltage of the speaker 3 increases, resulting in an increase in the ring tone.

즉 광센서(2)가 실내 조도를 감지한후 조도에 따라 스피커(3)에 전압을 상이하게 인가하므로 적정한 링 신호음을 자동으로 조절하도록 한 것이다.That is, since the light sensor 2 detects room illumination and applies voltage differently to the speaker 3 according to the illumination, the appropriate ring signal sound is automatically adjusted.

이상에서 상술한 바와 같이 작용하는 본 발명의 광센서(2)와 트랜지스터(Q) 및 저항(R1)(R2)으로 간단히 링 신호의 음량 조절 회로를 구성하여 실내의 조도에 따라 링 신호의 음량을 자동으로 적정하게 조절되도록 함으로서 종래의 스위치 조작으로 인한 사용자의 번거로움과 수면중 방해됨을 해소하여 전화기의 신뢰성 향상에 기여할 수 있는 유용한 발명인 것이다.A ring signal in response to the optical sensor (2) and the transistor (Q) and a resistor (R 1) (R 2) briefly in the room by configuring the volume control circuit of the ring signal intensity in the present invention that acts as described above described above By adjusting the volume automatically and appropriately, it is a useful invention that can contribute to improving the reliability of the phone by eliminating user's inconvenience and disturbance during sleep due to the conventional switch operation.

Claims (1)

전화기의 링 신호(1)에 스피커(3)가 연결된 통상의 음량 조절장치에 있어서, 트랜지스터(Q) 베이스 단에 빛의 조도를 감지하는 광센서(2)와 전압을 증가 또는 감소시키는 저항(R1)을 직렬 접속하되 상기 신호발생기(1)의 출력신호를 트랜지스터(Q) 콜렉터측과 저항(R1)을 통하여 광센서(2) 및 저항(R2) 사이에 각각 인가하는 한편 트랜지스터(Q)를 콜랙터단인 에미터를 스피커(3) 일측단을 접속하고, 상기 스피커(3)의 타측단자를 저항(R2)과 링 신호 발생기(1)에 연결하여서 된 것을 특징으로 하는 전화기 링 신호의 음량조절회로.In a conventional volume control device in which a speaker (3) is connected to a ring signal (1) of a telephone, an optical sensor (2) for detecting illuminance of light at a base end of a transistor (Q) and a resistor (R) for increasing or decreasing a voltage (R). 1 ) are connected in series, and the output signal of the signal generator 1 is applied between the optical sensor 2 and the resistor R 2 through the collector of the transistor Q and the resistor R 1 , respectively. A ringer signal connected to one end of the speaker 3 and connecting the other end of the speaker 3 to the resistor R 2 and the ring signal generator 1. Volume control circuit.
KR1019890017313A 1989-11-28 1989-11-28 Telephone ringing control circuit KR940008109B1 (en)

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Application Number Priority Date Filing Date Title
KR1019890017313A KR940008109B1 (en) 1989-11-28 1989-11-28 Telephone ringing control circuit

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Application Number Priority Date Filing Date Title
KR1019890017313A KR940008109B1 (en) 1989-11-28 1989-11-28 Telephone ringing control circuit

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KR940008109B1 true KR940008109B1 (en) 1994-09-02

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011127276A2 (en) * 2010-04-07 2011-10-13 Emory University Systems for monitoring hand sanitization
US10223895B2 (en) 2010-04-07 2019-03-05 Clean Hands Safe Hands Llc Systems for monitoring hand sanitization
US10282969B2 (en) 2013-06-19 2019-05-07 Clean Hands Safe Hands System and methods for wireless hand hygiene monitoring
US10467884B2 (en) 2010-04-07 2019-11-05 Clean Hands Safe Hands Llc Systems for monitoring hand sanitization
US10540881B2 (en) 2010-04-07 2020-01-21 Clean Hands Safe Hands Llc Systems and methods for pattern recognition and individual detection

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011127276A2 (en) * 2010-04-07 2011-10-13 Emory University Systems for monitoring hand sanitization
WO2011127276A3 (en) * 2010-04-07 2012-04-19 Emory University Systems for monitoring hand sanitization
US9123233B2 (en) 2010-04-07 2015-09-01 Clean Hands Safe Hands Systems for monitoring hand sanitization
US9564039B2 (en) 2010-04-07 2017-02-07 Clean Hands Safe Hands Systems for monitoring hand sanitization
US10032359B2 (en) 2010-04-07 2018-07-24 Clean Hands Safe Hands, Llc Systems for monitoring hand sanitization
US10223895B2 (en) 2010-04-07 2019-03-05 Clean Hands Safe Hands Llc Systems for monitoring hand sanitization
US10467884B2 (en) 2010-04-07 2019-11-05 Clean Hands Safe Hands Llc Systems for monitoring hand sanitization
US10540881B2 (en) 2010-04-07 2020-01-21 Clean Hands Safe Hands Llc Systems and methods for pattern recognition and individual detection
US10777071B2 (en) 2010-04-07 2020-09-15 Clean Hands Safe Hands Llc Systems and methods for pattern recognition and individual detection
US10282969B2 (en) 2013-06-19 2019-05-07 Clean Hands Safe Hands System and methods for wireless hand hygiene monitoring

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