KR940005528B1 - Rejection method and circuit of prank call in telephone - Google Patents
Rejection method and circuit of prank call in telephone Download PDFInfo
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- KR940005528B1 KR940005528B1 KR1019910018820A KR910018820A KR940005528B1 KR 940005528 B1 KR940005528 B1 KR 940005528B1 KR 1019910018820 A KR1019910018820 A KR 1019910018820A KR 910018820 A KR910018820 A KR 910018820A KR 940005528 B1 KR940005528 B1 KR 940005528B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
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Abstract
Description
제1도는 본 발명에 따른 시스템도.1 is a system diagram according to the present invention.
제2도는 본 발명에 따른 흐름도.2 is a flow chart in accordance with the present invention.
본 발명은 자동응답 전화기에 있어서 장난전화 격퇴 및 회로에 관한 것으로, 특히 Ring(호출음) 감지 회로와 괴음을 발생시킬 수 있는 회로로 구성하여 장난 전화를 격퇴할 수 있도록 괴음을 발생하여 상기 괴음 발생 후에 본 기능에 대해 이해하고 있는 사용자가 비밀번호에 해당하는 DTMF 신호를 보냈을 때 그 때부터 호출음(Ring)을 울려주어 특정인과의 통화만을 허용토록 하는 방법 및 회로에 관한 것이다.The present invention relates to a prank call repelling and circuit in an answering machine, and in particular, a ring (calling sound) detection circuit and a circuit capable of generating a buzz to generate a beep so as to repel a prank after the occurrence of the beep. When a user who understands this function sends a DTMF signal corresponding to a password, the method and circuit are to allow a call with a specific person by ringing a ringing ring from that time.
종래의 장난전화의 격퇴 방법은 장난전화로 인정되는 전화가 있을시 전화기에서 상대방이 듣기 싫을 정도의 가청음을 발생토록 하거나 상대방이 한 말을 역 송출하여 더 이상의 장난전화를 걸지 못하도록 되어 있었다.The conventional method of repulsing a prank call is to make an audible sound that the other party does not want to hear when the phone is recognized as a prank phone or to send back a word of the counterpart to make no prank call.
그러나 상대방을 계속 전화를 걸어 호출할 수 있으므로 링이울려 전화를 받는자의 신경을 거슬리게 하는 문제점을 있었다.However, since the other party can continue to make calls and ring, there was a problem that the ringer was annoying to the caller.
따라서 본 발명의 목적은 장난을 격퇴시킴과 동시에 장난 전화가 걸려올 가능성이 있거나, 특정인(예, 상호 아는사람)과의 통화만을 허용하고자 할 때 본 기능을 셋팅(설정)하므로서 괴전화로부터의 공포를 없애기 위한 방법 및 회로를 제공함에 있다.Therefore, the object of the present invention is to fear the fear of the ghost by setting (setting) the function when there is a possibility that a prank call may be received at the same time, or only a call with a specific person (for example, a mutual acquaintance) is repelled. To provide a method and circuit for eliminating.
이하 본 발명은 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 발명에 따른 시스템도로서, 통화선로(T,R)로부터 제2브리지 정류회로(110,190)가 연결되고, 상기 제2브리지 정류회로(130)로부터 제1링발생기(110) 및 링가지 회로(120)가 연결되며, 상기 링감지 회로(120)로 도래되는 링신호를 감지하여 중앙처리장치(100)에 입력되며, 상기 제1브리지 정류회로(140)에 제1스위칭부 (150) 및 DTMF 톤디코더(210)가 연결되며, 상기 중앙처리장치(100)의 출력신호에 따라 스위치(SW1)를 온/오프하고, 상기 제1스위칭부(150)를 제어하여 상대방의 음성 신호가 증폭기(230,240)를 통해 역송출되도록 제어하고, 제2스위칭부(180), 응답 메시지부(190)의 발생 신호가 선택되어 상기 제1스위칭부(180)에 입력되도록 연결하여, 상기 제1브리지 정류회로(140)의 출력 DTMF 신호가 DTMF톤 디코더(210)에서 디코딩하여 상기 중앙처리장치(100)에 입력되도록 연결하고, 상기 중앙처리장치 (100)가 장난 전화 격퇴 모드로 되어 있을시 제어코드에 대해 호출음을 발생하는 제2링 발생기(220)를 상기 중앙처리장치(100)에 연결토록 한다.1 is a system diagram according to the present invention, wherein the second bridge rectifier circuits 110 and 190 are connected from the communication lines T and R, and the first ring generator 110 and the ring are connected from the second bridge rectifier circuit 130. The branch circuit 120 is connected, detects a ring signal arriving at the ring sensing circuit 120, is input to the CPU 100, and a first switching unit 150 is connected to the first bridge rectifier circuit 140. ) And a DTMF tone decoder 210 are connected, and the switch SW1 is turned on / off according to the output signal of the central processing unit 100, and the first switching unit 150 is controlled to generate a voice signal of the other party. The controller 230 is controlled to transmit back through the amplifiers 230 and 240, and a signal generated by the second switching unit 180 and the response message unit 190 is selected and connected to the first switching unit 180, thereby connecting the first bridge. The output DTMF signal of the rectifier circuit 140 is decoded by the DTMF tone decoder 210 and input to the CPU 100. The ever result, and connecting the second ring generator 220 to the central processing unit 100 generates a ring-back tone for the control code when there is a mischievous call repelling mode to the central processor 100. The
제2도는 본 발명에 다른 흐름도로서 중앙처리장치(100)에서 처리 제어되는 것으로 장난 격퇴 모드로 되어 있는 상태에서 링감지 회로(120)의 감지에 따라 링신호가 소정횟수 도래했을시 중앙처리장치(100)의 제어에 의해 제1,2스위칭부(150,160)를 제어하여 통화로를 형성하고, 괴음 발생기(170)를 제어하여 괴음을 발생시켜 제1,2스위칭부(150,160)을 통해 상대방으로부터 이를 검출하거나 제1스위칭부(150)를 제어하여 상대방의 입력 음성 신호가 역송출되도록 되어있다.2 is a flow chart according to another embodiment of the present invention, which is controlled by the central processing unit 100. When the ring signal arrives a predetermined number of times according to the detection of the ring sensing circuit 120 in the play repulsing mode, the central processing unit ( The first and second switching units 150 and 160 are controlled by the control of 100 to form a call path, and the control of the noise generator 170 to generate a tone is made from the counterpart through the first and second switching units 150 and 160. By detecting or controlling the first switching unit 150, the input voice signal of the other party is reversely transmitted.
그러나 전화가 소유자나 상기 장난전화 격퇴모드에서 전화할 수 있도록 설정된 비밀번호가 입력될시 중앙처리장치(100)가 체킹하여 맞은면 제2링발생기(220)를 제어한다. 이에따라 상기 제1링발생기(110)의 발생신호와 다른 링신호가 발생되어 수신자를 장난 전화가 아닌 것으로 알고 후크오프하여 통화를 이루도록 되어있다.However, when the phone is set to the owner or the password set to call in the prank call retraction mode is input, the central processing unit 100 checks and controls the second ring generator 220. Accordingly, a ring signal different from the signal generated by the first ring generator 110 is generated, so that the receiver is known to be not a mischievous phone and is hooked off to make a call.
따라서 본 발명의 구체적 일실시예를 제1도, 제2도를 참조하여 상세히 설명하면, (2a)과정에서 시스템에 인가되는 링(호출음)의 수를 카운트하게 된다. 즉, Tip(팁), Ring(링) 양단에 인가되는 호출음은 제2브리지 정류회로(130)를 거쳐 링 감지회로(120)과 링 발생기(110)에 연결된다. 이때, 링 발생기(110)은 본 기능 수행을 위해 중앙처리장치(100)에서 제어하거나 기계적 스위치로 조작하여 링 발생이 안되도록 하는 것이 좋을 것이다. 한편, 링 감지회로(120)에 들어온 신호는 중앙처리장치 (100)가 처리하기 쉽도록 신호를 변형하여 중앙처리장치(100)에 인가되도록 한다. 중앙처리장치(100)에서는 이 호출음에 대한 수를 카운트하여 해당 수에 도달되면 (2b)과정에서 제1,2스위칭(150,160)를 제어하여 통화로를 형성하게 되는데, 이것은 제1도의 제어선 2를 통하여 중앙처리장치(100)에서 스위치(SW1)을 작동시켜 통화로를 형성시킨다.Therefore, a specific embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2, and in step 2a, the number of rings (calling sounds) applied to the system is counted. That is, the tip and the ringing sound applied to both ends of the ring are connected to the ring sensing circuit 120 and the ring generator 110 through the second bridge rectifier circuit 130. In this case, the ring generator 110 may be controlled by the central processing unit 100 to perform the present function or by operating with a mechanical switch so as not to generate a ring. On the other hand, the signal entered into the ring detection circuit 120 is modified by the signal to be easily processed by the central processing unit 100 to be applied to the central processing unit (100). In the central processing unit 100, the number of the ringing tones is counted and when the number is reached, the first and second switching units 150 and 160 are controlled in the process (2b) to form a call path, which is the control line 2 of FIG. Through the switch (SW1) in the central processing unit 100 to form a communication path through.
통화로 형성후 제2도의 (2c)과정에서 보듯이 중앙처리장치(100)가 괴음 발생기(170)를 제어하여 수호가 괴음을 발생하여 통화로로 송출하게 된다. 이 과정을 제1도에서 보면 중앙처리장치(100)에서 신호를 만들수도 있고 괴음 발생 부분을 별도로 구성할 수도 있는데, 이 신호는 제1,제2스위칭(150,160)을 거쳐 통화로를 지나 상대편에 전달되게 된다.As shown in the process (2c) of FIG. 2 after the formation of the call path, the central processing unit 100 controls the tone generator 170 to generate a guard tone and transmit it to the call path. In the process shown in FIG. 1, the central processing unit 100 may generate a signal or separately configure a part of generating a beep, and the signal passes through the first and second switching channels 150 and 160 to the other side. Will be delivered.
이 신호는 수초간 발생 및 전달되며, 대부분 이 신호 송출후 통화가 종료되게 된다. 그러나 본 시스템에 대해 잘 알고 있는 경우, 꼭 통화로를 하고자 하는 자는 괴음 발생이 끝난후 소정의 시간내에 호출음 발생을 요구하는 특정 코드를 입력할 수 있다. 즉, (2d)과정에서 제1도를 보면, 제1브리지 정류회로(140)을 거쳐 스위치(SW1)와 연결되고, DTMF 톤 디코더(210)를 거쳐 기능 수행 코드에 대한 적·부 판정을 받게되며, 다른 기능 수행을 위한 코드일때는 다른 기능의 수행을 하게 된다.This signal is generated and transmitted for a few seconds, and in most cases, the call is terminated after the signal is sent. However, if you are familiar with the present system, a person who wants to make a call can input a specific code for requesting a ringing tone within a predetermined time after the tone is generated. That is, referring to FIG. 1 in the process (2d), the first bridge rectifier circuit 140 is connected to the switch SW1 and the DTMF tone decoder 210 receives the right or wrong decision on the function execution code. In case of code for other function, other function is executed.
제2도의 (2e)과정에서는 상기 (2d)과정에서 호출음 발생에 해당하는 코드가 입력된후 호출음 발생을 시작하는데, 이 신호는 중앙처리장치(100)에서 만들어져 제2링 발생기(220)로 발생될 수도 있고, 중앙처리장치(100)에서 제어하고 제2링 발생기(220)의 자체에서 신호를 발생할 수도 있다. 제2도의 (2f)과정도 제2링 발생기(220)로부터 발생되는 링신호로서 제1링 발생기(110)에서 발생되는 소리와는 구별이 가능하므로, 이 과정에서 통화를 원하면 오프-훅을 하면 된다. 이러한 방법을 이용한 실제 사용예를 들어본다.In the process of (2e) of FIG. 2, after the code corresponding to the call sound generation is input in the process (2d), the call sound is started. This signal is generated by the central processing unit 100 and generated by the second ring generator 220. It may be controlled by the central processing unit 100 and may generate a signal in the second ring generator 220 itself. (2f) of FIG. 2 is also a ring signal generated from the second ring generator 220, so it can be distinguished from the sound generated by the first ring generator 110. do. Here is an example of the actual use of this method.
원하지 않는 전화가 자꾸 오는 경우 키 입력부(200)를 통하여 격퇴 모드로 셋팅하게 되면 위에 오는 모든 전화에 대하여 상기 기능을 수행하게 된다. 이 기능을 적절히 사용하려면 링 발생기1(110)을 작동되지 않도록 하여 놓고 링이 오는 것에 대해서는 시스템만이 알도록 하며 해당 링 수에서 시스템이 자동응답 한후 괴음을 통화로로 송출하여 대부분의 경우 상대방이 먼저 전화를 끊도록 유도한다. 그러나 가족들 간에는 이러한 기능을 알고 있으므로 통화를 하기 위하여 특정 코드에 해당하는 원격지 전화기의 DTMF 신호나, 기타 특정 신호를 인가하여 시스템에 알리면 그 신호를 받아 링 발생기2(220)를 통하여 가족의 호출을 알리게 된다. 여기서 중요한 것은 집에서 이 기능을 세팅한 사람은 실제로 자신에게 꼭 필요한 전화에 대해서만(즉, 호출번호를 알고 있는 사람으로 부터만) 호출음을 받게되므로 괴전화, 장난전화, 불필요한 전화로부터 해방될 수 있다.If the unwanted phone keeps coming back to the repel mode through the key input unit 200 to perform the above function for all the above phone. To use this feature properly, turn off ring generator 1 (110) so that only the system knows about the incoming ring, and the system automatically answers the number of rings and sends out the beep to the call in most cases. Encourage them to hang up first. However, family members are aware of this function, so if they want to make a call, the system will send DTMF signal of the remote phone corresponding to a specific code or other specific signal to inform the system and receive the signal to make a family call through ring generator 2 (220). You will be notified. What's important here is that a person who sets this feature at home can only get a ringtone for the phone he really needs (i.e. only from someone who knows the caller's number) so he can be freed from fraudulent calls, mischief calls, and unnecessary calls. .
상술한 바와 같이 기존의 상대방의 음성을 역송출하는 방법보다, 가격면에서 저렴하고(녹음하는 수단이 필요없다), 자동응답 장치에서 이 기능의 구현은 하드웨어의 추가없이 순전히 소프트웨어적으로 구현가능하며, 일반 전화기에 링 감지 회로만의 추가로서 본 기능을 수행 가능하나(단, user program 가능한 CPU를 사용해야 함), 기존의 자동응답 장치의 경우처럼 OGM(Outgoing Message) 즉 송출 메시지를 송출하지 않고 괴음만을 발생하므로서 격퇴 전화기라는 인식보다는 잘못 전화한 것같은 느낌을 주어 더 뛰어난 격퇴 효과를 발휘할 수 있다.As described above, it is cheaper in price (no need for recording means) than the conventional method of transmitting back the other party's voice, and the implementation of this function in the answering machine can be implemented in pure software without additional hardware. This function can be performed by adding only ring detection circuit to general telephone (but use user programmable CPU), but without sending outgoing message (EGM), or outgoing message, as in the case of the existing answering machine. It can only give you a better repelling effect by making you feel like you're making a wrong call rather than a repelling phone.
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KR1019910018820A KR940005528B1 (en) | 1991-10-25 | 1991-10-25 | Rejection method and circuit of prank call in telephone |
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