KR910010962A - Prank call prevention control circuit - Google Patents

Prank call prevention control circuit Download PDF

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Publication number
KR910010962A
KR910010962A KR1019890017248A KR890017248A KR910010962A KR 910010962 A KR910010962 A KR 910010962A KR 1019890017248 A KR1019890017248 A KR 1019890017248A KR 890017248 A KR890017248 A KR 890017248A KR 910010962 A KR910010962 A KR 910010962A
Authority
KR
South Korea
Prior art keywords
voice
terminal
unit
control circuit
prevention control
Prior art date
Application number
KR1019890017248A
Other languages
Korean (ko)
Other versions
KR930004914B1 (en
Inventor
조택모
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019890017248A priority Critical patent/KR930004914B1/en
Publication of KR910010962A publication Critical patent/KR910010962A/en
Application granted granted Critical
Publication of KR930004914B1 publication Critical patent/KR930004914B1/en

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Classifications

    • 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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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephone Function (AREA)

Abstract

내용 없음No content

Description

장난전화 방지제어회로Prank call prevention control circuit

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

제2도는 본 발명 장난전화 방지제어회로도.2 is a circuit diagram for preventing mischief of the present invention.

제3도는 제2도에 따른 전화수신시의 신호흐름도.3 is a signal flow diagram at the time of telephone reception according to FIG.

제4도는 제2도에 따른 전화번호기억시의 신호흐름도.4 is a signal flow diagram when storing phone numbers according to FIG. 2;

Claims (1)

전화기의 내,외부선단자(IT1-IT2), (OT1-OT2)가 공통저속되어 발신음 및 음성신호검출부(6)를 통해 마이컴(4)에 연결됨과 아울러 콘덴서(C1-C2)와 트랜스(T1)로 구성된 신호전달부(1)의 복합주파수신호증폭부(2) 및 복합주파수신호송수신부(3)를 통해 마이컴(4)에 연결 구성한 장난전화 방지제어회로에 있어서, 상기 마이컴(4)의 포트단자(P7)는 저항(R7)을 통해 전원단(B')에 연결된 고정단자(b)와 접지단자(c)에 선택접속되게 구성된 전화번호기억스위치(8)의 가동단자(a)에 연결하고, 그 마이컴(4)의 포트단자(P4)는 음성데이타가 저장된 음성데이타롬(12)과 음성신호를 발생시키는 음성합성부(11) 및 저항(R8)과 콘덴서(C9-C10), 연산증폭기(OP2)로 구성되어 음성신호를 증폭시키는 음성신호증폭부(10)를 통해 신호전달부(6)로 연결하여 음성메세지를 전달시키는 것을 특징으로 한 장난전화 방지제어회로.The internal and external terminals (IT1-IT2) and (OT1-OT2) of the telephone are commonly slowed down and connected to the microcomputer 4 through the dial tone and voice signal detection unit 6, and the capacitors C1-C2 and T1. In the miscellaneous telephone prevention control circuit configured to connect to the microcomputer 4 through the composite frequency signal amplifying unit 2 and the composite frequency signal transmitting / receiving unit 3 of the signal transmission unit 1 composed of The port terminal P7 is connected to the movable terminal a of the telephone number memory switch 8 configured to be selectively connected to the fixed terminal b connected to the power supply terminal B 'and the ground terminal c through the resistor R7. The port terminal P4 of the microcomputer 4 has a voice data storage unit 12 for storing voice data, a voice synthesizer 11 for generating a voice signal, a resistor R8, a capacitor C9-C10, It is composed of an operational amplifier (OP2) is characterized in that the voice signal amplification unit 10 for amplifying the voice signal connected to the signal transmission unit 6 to deliver a voice message One prank call prevention control circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890017248A 1989-11-27 1989-11-27 Unauthorized call prevention circuit KR930004914B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890017248A KR930004914B1 (en) 1989-11-27 1989-11-27 Unauthorized call prevention circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890017248A KR930004914B1 (en) 1989-11-27 1989-11-27 Unauthorized call prevention circuit

Publications (2)

Publication Number Publication Date
KR910010962A true KR910010962A (en) 1991-06-29
KR930004914B1 KR930004914B1 (en) 1993-06-10

Family

ID=19292112

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890017248A KR930004914B1 (en) 1989-11-27 1989-11-27 Unauthorized call prevention circuit

Country Status (1)

Country Link
KR (1) KR930004914B1 (en)

Also Published As

Publication number Publication date
KR930004914B1 (en) 1993-06-10

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