KR970072927A - Receiving circuit of the facsimile apparatus - Google Patents

Receiving circuit of the facsimile apparatus Download PDF

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Publication number
KR970072927A
KR970072927A KR1019960011476A KR19960011476A KR970072927A KR 970072927 A KR970072927 A KR 970072927A KR 1019960011476 A KR1019960011476 A KR 1019960011476A KR 19960011476 A KR19960011476 A KR 19960011476A KR 970072927 A KR970072927 A KR 970072927A
Authority
KR
South Korea
Prior art keywords
resistor
operational amplifier
voice guidance
guidance message
transmission signal
Prior art date
Application number
KR1019960011476A
Other languages
Korean (ko)
Other versions
KR0177100B1 (en
Inventor
박주승
Original Assignee
김광호
삼성전자 주식회사
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960011476A priority Critical patent/KR0177100B1/en
Priority to GB9707710A priority patent/GB2312354B/en
Priority to CN97110557A priority patent/CN1096786C/en
Publication of KR970072927A publication Critical patent/KR970072927A/en
Application granted granted Critical
Publication of KR0177100B1 publication Critical patent/KR0177100B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/327—Initiating, continuing or ending a single-mode communication; Handshaking therefor
    • H04N1/32704—Establishing a communication with one of a facsimile and another telecommunication apparatus sharing a single line
    • H04N1/32706—Type of the other apparatus
    • H04N1/3271—Telephone answering machine
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/327—Initiating, continuing or ending a single-mode communication; Handshaking therefor
    • H04N1/32704—Establishing a communication with one of a facsimile and another telecommunication apparatus sharing a single line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/327—Initiating, continuing or ending a single-mode communication; Handshaking therefor
    • H04N1/32704—Establishing a communication with one of a facsimile and another telecommunication apparatus sharing a single line
    • H04N1/32715—Detecting
    • H04N1/32719—Detecting a facsimile calling signal, e.g. CNG

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimiles In General (AREA)
  • Telephonic Communication Services (AREA)
  • Facsimile Transmission Control (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. Technical field to which the invention described in the claims belongs

본 발명은 팩시밀리의 수신회로에 관한 기술분야이다.The present invention relates to a receiving circuit of a facsimile.

2. 발명이 해결하려고 하는 기술적 과제2. Technical Challenges to be Solved by the Invention

본 발명은 음성안내 메시지와 공중전화망에서 들어오는 CNG 톤 신호가 동시에 존재한 경우 음성안내 메시지 즉 송신부(TX)의 송신신호가 수신부(Rx)로 들어오지 못하게 하고, 단지 공중전화망에서 들어오는 CNG 톤 신호만 수신부로 입력될 수 있도록 함으로서 톤 신호의 검출력을 향상시키는 팩시밀리의 수신회로를 제공한다.In the present invention, when a voice guidance message and a CNG tone signal incoming from a public telephone network exist simultaneously, a voice guidance message, i.e., a transmission signal of a TX is prevented from entering the reception unit Rx, and only a CNG tone signal, So as to improve the detection power of the tone signal.

3. 발명의 해결방법의 요지3. The point of the solution of the invention

본 발명은 자동응답기를 내장하여 음성안내 메시지 송출부를 통하여 음성안내 메시지를 송출하며, 수신부에 공중전화망의 콜링 톤을 출력하여 수신하는 팩시밀리의 수신회로에 있어서, 상기 공중전화망의 출력신호 및 링신호를 변환하여 상기 수신부로 출력하기 위한 트랜스포머와, 상기 트랜스포머의 출력단에 입력단이 접속되어 로드상의 전압을 조절하는 로드 저항과, 상기 음성안내 메시지 송출부로부터 입력되는 송신 신호를 직렬연결된 제1저항, 제2저항을 통과시키며 이에 일입력단이 선택적으로 접속되며 다른 입력단이 접지단에 접속되어 상기 송신 신호를 증폭하여 상기 로드 저항으로 출력하기 위한 제1연산증폭기와, 상기 트랜스포머에 일입력단이 제3저항을 통하여 접속되면서 제4저항과 병렬로 접속되며, 다른 입력단이 제6저항을 통하여 접지단에 접속됨과 동시에 상기 제1연산증폭기의 출력단 및 상기 제6저항사이의 제5저항이 접속되어 상기 수신부로 증폭된 콜링 톤을 출력하는 제2연산증폭기를 특징으로 한다.The present invention provides a receiving circuit of a facsimile including a built-in answering machine for transmitting a voice guidance message through a voice guidance message transmitting unit and for outputting a calling tone of a public telephone network to a receiving unit, A load resistor connected to an output terminal of the transformer and adapted to adjust a voltage on the load; a first resistor connected in series with the transmission signal input from the voice guidance message transmitter; A first operational amplifier through which a resistor is passed and one input terminal thereof is selectively connected and another input terminal is connected to the ground terminal to amplify the transmission signal and output the amplified transmission signal to the load resistor; Connected in parallel with the fourth resistor while the other input is connected through the sixth resistor It is the resistance between the fifth output terminal and said sixth resistor of the first operational amplifier connected at the same time as connection to the ground terminal characterized by a second operational amplifier to output the calling tone is amplified by the reception unit.

4. 발명의 중요한 용도4. Important Uses of the Invention

본 발명은 팩시밀리에 적합하게 사용된다.The present invention is suitably used for facsimile.

Description

팩시밀리 장치의 수신회로Receiving circuit of the facsimile apparatus

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제2도는 본 발명에 따른 팩시밀리의 수신회로의 상세회로도.FIG. 2 is a detailed circuit diagram of a receiving circuit of a facsimile according to the present invention; FIG.

Claims (3)

자동응답기를 내장하여 음성안내 메시지 송출부를 통하여 음성안내 메시지를 송출하며, 수신부에 공중전화망의 콜링 톤을 검출하여 수신하는 팩시밀리의 수신회로에 있어서, 상기 공중전화망의 출력신호를 변환하여 상기 수신부로 출력하기 위한 트랜스포머와, 상기 트랜스포머의 출력단에 입력단이 접속되어 로드상의 전압을 조절하는 로드 저항과, 상기 음성안내 메시지 송출부로부터 입력되는 송신 신호를 직렬연결된 제1저항, 제2저항을 통과시키며 이에 일입력단이 선택적으로 접속되며 다른 입력단이 접지단에 접속되어 상기 송신 신호를 증폭하여 상기 로드 저항으로 출력하기 위한 제1연산증폭기와, 상기 트랜스포머에 일입력단이 제3저항을 통하여 접속되면서 제4저항과 병렬로 접속되며, 다른 입력단이 제6저항을 통하여 접지단에 접속됨과 동시에 상기 제1연산증폭기의 출력단 및 상기 제6저항사이의 제5저항이 접속되어 상기 수신부로 증폭된 콜링 톤을 출력하는 제2연산증폭기를 구비함을 특징으로 하는 팩시밀리의 수신회로.A receiving circuit of a facsimile receiving an automatic answering machine and transmitting a voice guidance message through a voice guidance message transmitting unit and detecting a calling tone of a public telephone network at a receiving unit and converting the output signal of the facsimile telephone network into an output signal A load resistance connected to an output terminal of the transformer to adjust a voltage on the load and a transmission signal input from the voice guidance message transmission unit are passed through a first resistor and a second resistor connected in series, A first operational amplifier for selectively connecting an input terminal to the ground terminal and another input terminal connected to the ground terminal to amplify the transmission signal and output the amplified transmission signal to the load resistor; Connected in parallel, the other input is connected to the ground through the sixth resistor And a second operational amplifier connected to a fifth resistor between the output terminal of the first operational amplifier and the sixth resistor for outputting a calling tone amplified by the receiving section. 제1항에 있어서, 상기 제1연산증폭기가 상기 제5저항 및 제6저항에 의해 출력신호가 상기 제2연산증폭기로 되돌아가지 않음을 특징으로 하는 팩시밀리의 수신회로.The receiving circuit of claim 1, wherein the first operational amplifier does not return the output signal to the second operational amplifier by the fifth resistor and the sixth resistor. 제1항 또는 제2항에 있어서, 상기 제5저항 및 제6저항이 상기 제2연산증폭기를 차동증폭기로 동작하게 함을 특징으로 하는 팩시밀리의 수신회로.3. A receiving circuit as claimed in claim 1 or 2, wherein the fifth resistor and the sixth resistor cause the second operational amplifier to operate as a differential amplifier. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960011476A 1996-04-16 1996-04-16 Receiving circuit for facsimile KR0177100B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019960011476A KR0177100B1 (en) 1996-04-16 1996-04-16 Receiving circuit for facsimile
GB9707710A GB2312354B (en) 1996-04-16 1997-04-16 Facsimile receiving circuit
CN97110557A CN1096786C (en) 1996-04-16 1997-04-16 Facsimile receiving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960011476A KR0177100B1 (en) 1996-04-16 1996-04-16 Receiving circuit for facsimile

Publications (2)

Publication Number Publication Date
KR970072927A true KR970072927A (en) 1997-11-07
KR0177100B1 KR0177100B1 (en) 1999-05-01

Family

ID=19455842

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960011476A KR0177100B1 (en) 1996-04-16 1996-04-16 Receiving circuit for facsimile

Country Status (3)

Country Link
KR (1) KR0177100B1 (en)
CN (1) CN1096786C (en)
GB (1) GB2312354B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119968A (en) * 1982-12-27 1984-07-11 Hitachi Ltd Facsimile device
KR920001184B1 (en) * 1989-05-31 1992-02-06 삼성전자 주식회사 Fax system
ES2127211T3 (en) * 1991-09-04 1999-04-16 Canon Kk FACSIMIL DEVICE WITH AUTOMATIC TELEPHONE ANSWERING FUNCTION AND COMMUNICATION METHOD IN SUCH DEVICE.
US5490210A (en) * 1993-12-07 1996-02-06 Sasso; Bill J. Programmable telephone interface device
US5479499A (en) * 1993-12-15 1995-12-26 Murata Manufacturing Co., Ltd. Sensor circuit for voice/fax switch with cascaded amplifier circuit

Also Published As

Publication number Publication date
GB2312354B (en) 1998-06-17
CN1169634A (en) 1998-01-07
GB2312354A (en) 1997-10-22
KR0177100B1 (en) 1999-05-01
CN1096786C (en) 2002-12-18
GB9707710D0 (en) 1997-06-04

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