KR890007523A - Tone detector with one-shot multivibrator - Google Patents

Tone detector with one-shot multivibrator Download PDF

Info

Publication number
KR890007523A
KR890007523A KR870011220A KR870011220A KR890007523A KR 890007523 A KR890007523 A KR 890007523A KR 870011220 A KR870011220 A KR 870011220A KR 870011220 A KR870011220 A KR 870011220A KR 890007523 A KR890007523 A KR 890007523A
Authority
KR
South Korea
Prior art keywords
resistor
multivibrator
comparator
output
single yarn
Prior art date
Application number
KR870011220A
Other languages
Korean (ko)
Inventor
김진국
심운섭
박상규
최연석
Original Assignee
권혁조
동양정밀공업 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 권혁조, 동양정밀공업 주식회사 filed Critical 권혁조
Priority to KR870011220A priority Critical patent/KR890007523A/en
Publication of KR890007523A publication Critical patent/KR890007523A/en

Links

Landscapes

  • Sewing Machines And Sewing (AREA)

Abstract

내용 없음No content

Description

단사(one-shot) 멀티바이브레이터를 이용한 음조(Tone) 검출기Tone detector with one-shot multivibrator

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

제1도는 본 발명의 실시 회로도.1 is an implementation circuit diagram of the present invention.

제2도는 본 발명의 블록 다이어그램.2 is a block diagram of the present invention.

Claims (1)

공지의 증폭부와 영교차회로부를 연결한 것에 있어서 공지의 영교차회로부(2)의 출력을 분로시켜 한쪽은 단사 멀티바이브레이터(3)의 입력과 연결되고 다른 한쪽 역시 단사멀티바이브레이터(3)의 입력과 연결되며, 그 출력(Q)(Q')은 적분기(4)(4')의 저항(R3)(R3')와 연결되고 상기의 적분기(4)(4')의 출력은 비교기(5)(5')의 비반전 입력단자(+)와 연결하며, 반전 입력단자(-)는 콘덴서(C4)(C4')와 병렬로 연결되어 접지된 저항(R5)(R5')과 연결되고, 또한 비교기(5)(5')를 구동기 위한 전압(Vcc)은 바이패스 콘덴서(C5)(C5')와 연결된 저항(R4)(R4')을 통해 비교기(5)(5')의 반전 입력단자(-)와 연결되어 있으며, 출력은 검파다이오우드(D)(D')와 직렬로 연결된 피드백 저항(R6)(R6')을 통해 반전 입력단자(-)에 연결되며, 상기의 비교기(5)(5')의 출력은앤드게이트(AND-GATE)(6)와 연결되어 주파수 음조(Tone)을 검출할 수 있는 단사멀티바이브레이터를 이용한 음조(Tone) 검출기.In the connection of the well-known amplification section and the zero-crossing circuit section, the output of the well-known zero-crossing circuit section 2 is shunted so that one side is connected to the input of the single yarn multivibrator 3 and the other side also the input of the single yarn multivibrator 3. Is connected to a resistor R 3 (R 3 ′) of the integrator 4, 4 ′ and the output of the integrator 4, 4 ′ is a comparator. (5) (5 ') is connected to the non-inverting input terminal (+), and the inverting input terminal (-) is connected in parallel with the capacitor (C 4 ) (C 4 ') and grounded resistor (R 5 ) (R The voltage Vcc connected to 5 ') and also for driving the comparator 5, 5 ' is connected via a resistor R 4 (R 4 ') connected to the bypass capacitor C 5 (C 5 '). It is connected to the inverting input terminal (-) of the comparator (5) (5 '), and the output is inverted input through a feedback resistor (R 6 ) (R 6 ') connected in series with the detection diode (D) (D '). Is connected to a terminal (-), and the outputs of the comparators 5 and 5 'are AND-GATE ( Tone detector using single yarn multivibrator which is connected to 6) and can detect frequency tone. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR870011220A 1987-10-06 1987-10-06 Tone detector with one-shot multivibrator KR890007523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR870011220A KR890007523A (en) 1987-10-06 1987-10-06 Tone detector with one-shot multivibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR870011220A KR890007523A (en) 1987-10-06 1987-10-06 Tone detector with one-shot multivibrator

Publications (1)

Publication Number Publication Date
KR890007523A true KR890007523A (en) 1989-06-20

Family

ID=68343953

Family Applications (1)

Application Number Title Priority Date Filing Date
KR870011220A KR890007523A (en) 1987-10-06 1987-10-06 Tone detector with one-shot multivibrator

Country Status (1)

Country Link
KR (1) KR890007523A (en)

Similar Documents

Publication Publication Date Title
KR890016758A (en) Schmitt trigger circuit
KR880006828A (en) Teaching converter
KR880012079A (en) Sync signal processing and polarity detection circuit
DE68923154T2 (en) Circuit for electromagnetic rotation sensor.
KR870008239A (en) Automatic power control
KR920003690A (en) Optical receiver circuit
KR900702653A (en) Conversion circuit
KR840001743A (en) Information signal presence discrimination circuit device
DE59203699D1 (en) CIRCUIT ARRANGEMENT FOR DETECTING A VOLTAGE.
KR890007523A (en) Tone detector with one-shot multivibrator
KR910010831A (en) Circuitry for detecting output distortion of the last stage of an audio device
KR880008489A (en) Battery protection circuit
KR910005053A (en) High Frequency Amplitude Modulated Signal Comparison Circuit
KR880011567A (en) Air intake measuring device
KR930017292A (en) Signal processing circuit
KR880000939A (en) Rotation control device
KR880008679A (en) Ring Zero Cross Detection Circuit
SU782087A1 (en) Ac-to-dc voltage converter
KR880012992A (en) Water level detection circuit of electrode
ATE85476T1 (en) ZENER DIOD DETECTOR CIRCUIT.
KR910012727A (en) Programming Method for Shortening the Center Frequency Measurement Period
SU723757A1 (en) Dc amplifier
KR910008986A (en) Tuning Detection Circuit
KR920003730A (en) Beep interruption period detection circuit
KR970048496A (en) DC current sensing circuit using current transformer

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application