KR970017310A - Standard recording method and long time recording method discrimination circuit - Google Patents

Standard recording method and long time recording method discrimination circuit Download PDF

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Publication number
KR970017310A
KR970017310A KR1019950033020A KR19950033020A KR970017310A KR 970017310 A KR970017310 A KR 970017310A KR 1019950033020 A KR1019950033020 A KR 1019950033020A KR 19950033020 A KR19950033020 A KR 19950033020A KR 970017310 A KR970017310 A KR 970017310A
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KR
South Korea
Prior art keywords
comparator
recording method
input terminal
inverting input
long time
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Application number
KR1019950033020A
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Korean (ko)
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KR0150120B1 (en
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최일운
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김광호
삼성전자 주식회사
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950033020A priority Critical patent/KR0150120B1/en
Publication of KR970017310A publication Critical patent/KR970017310A/en
Application granted granted Critical
Publication of KR0150120B1 publication Critical patent/KR0150120B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

이 발명은 표준 녹화 방식 및 장시간 녹화 방식 판별회로에 관한 것으로서, 입력 신호를 받아들여 증폭한 후 출력하는 이득 제어 증폭기와, 상기 이득 제어 증폭기에서 출력된 신호를 입력받아 포락선을 검출하여 출력하는 포락선 검출기와, 상기 포락선 검출기의 출력 신호를 반전 입력단자로 기준 전압을 비반전 입력단자로 입력받아 비교하여 비교 결과를 논리 신호로 출력하는 제1비교기와, 상기 포락선 검출기의 출력단자와 제1비교기의 반전 입력단자를 연결하는 저항과, 상기 저항과 병렬로 연결되는 커패시터와, 상기 제1비교기의 반전입력단자와 전원을 연결하는 다이오드와, 상기 제1비교기의 출력 신호를 반전 입력단자로, 기준 전압을 비반전입력단자로 입력받아 비교하여 출력하는 제2비교기와, 상기 제1비교기의 출력단자와 상기 제2비교기의 반전입력단자를 연결하는 저항과, 상기 저항과 접지를 연결하는 커패시터로 구성되어, 캠코더에서 후진 탐색을 할 때나 전진 탐색을 할 때 테이프에 녹화된 방식이 표준 녹화 방식인지 장시간 녹화 방식인지를 판별하는 표준 녹화 방식 및 장시간 녹화 방식 판별 회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a standard recording method and a long time recording method discriminating circuit, comprising: a gain control amplifier that receives an input signal, amplifies it, and then outputs a signal; And a first comparator for comparing the output signal of the envelope detector with an inverting input terminal and comparing a reference voltage with a non-inverting input terminal, and outputting a comparison result as a logic signal, and inverting the output terminal and the first comparator of the envelope detector. A resistor connecting an input terminal, a capacitor connected in parallel with the resistor, a diode connecting the inverting input terminal of the first comparator and a power source, and an output signal of the first comparator as an inverting input terminal, A second comparator that is inputted to the non-inverting input terminal for comparison and output; a second comparator and an output terminal of the first comparator It consists of a resistor that connects the inverting input terminal and a capacitor that connects the resistor and the ground to determine whether the recording method on the tape is a standard recording method or a long time recording method when the camcorder searches backward or forward. A standard recording method and a long time recording method discrimination circuit.

Description

표준 녹화 방식 및 장시간 녹화 방식 판별 회로Standard recording method and long time recording method discrimination circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 이 발명의 실시예에 따른 표준 녹화 방식 및 장시간 녹화 방식 판별회로의 회로도이고,4 is a circuit diagram of a standard recording method and a long time recording method discriminating circuit according to an embodiment of the present invention;

제5도는 이 발명의 실시예에 따른 표준 녹화 방식 및 장시간 녹화 방식 판별회로의 파형도이고,5 is a waveform diagram of a standard recording method and a long time recording method discriminating circuit according to an embodiment of the present invention;

제6도는 이 발명의 실시예에 따른 표준 녹화 방식 및 장시간 녹화 방식 판별회로에서 클램프 동작시의 파형도이다.6 is a waveform diagram during clamp operation in the standard recording method and the long time recording method discriminating circuit according to the embodiment of the present invention.

Claims (2)

입력 신호를 받아들여 증폭한 후 출력하는 이득 제어 증폭기와, 상기 이득 제어 증폭기에서 출력된 신호를 입력받아 포락선을 검출하여 출력하는 포락선 검출기와, 상기 포락선 검출기의 출력 신호를 반전 입력단자로, 기준 전압을 비반전 입력단자로 입력받아 비교하여 비교 결과를 논리 신호로 출력하는 제1비교기와, 상기 포락선 검출기의 출력단자와 제1비교기의 반전 입력단자를 연결하는 저항과, 상기 저항과 병렬로 연결되는 커패시터와, 상기 제1비교기의 반전 입력단자와 전원을 연결하는 다이오드와, 상기 제1비교기의 출력 신호를 반전 입력단자로, 기준 전압을 비반전 입력단자로 입력받아 비교하여 출력하는 제2비교기와, 상기 제1비교기의 출력단자와 상기 제2비교기의 반전 입력단자를 연결하는 저항과, 상기 저항과 접지를 연결하는 커패시터를 포함하여 이루어지는 것을 특징으로 하는 표준 녹화 방식 및 장시간 녹화 방식 판별회로.A gain control amplifier that receives and amplifies an input signal and outputs the output signal, an envelope detector that receives the signal output from the gain control amplifier, detects and outputs an envelope, and outputs an output signal of the envelope detector as a reference voltage. And a first comparator for inputting a non-inverting input terminal to compare and output a comparison result as a logic signal; A capacitor, a diode connecting the power supply to the inverting input terminal of the first comparator, and a second comparator for comparing the output signal of the first comparator with an inverting input terminal and receiving a reference voltage as a non-inverting input terminal for comparison. And a resistor connecting the output terminal of the first comparator and the inverting input terminal of the second comparator, and the resistor and ground connected to each other. Emitter standard recording mode and a long time recording mode discriminating circuit which comprises including. 제1항에 있어서, 상기한 다이오드는 클램프 동작을 하여 헤드간의 크기의 차이에 의한 오동작을 방지하는 것을 특징으로 하는 표준 녹화 방식 및 장시간 녹화 방식 판별회로.2. The standard recording method and the long time recording method discrimination circuit according to claim 1, wherein the diode is clamped to prevent malfunction due to a difference in size between the heads. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950033020A 1995-09-29 1995-09-29 Recording type detecting circuit KR0150120B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950033020A KR0150120B1 (en) 1995-09-29 1995-09-29 Recording type detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950033020A KR0150120B1 (en) 1995-09-29 1995-09-29 Recording type detecting circuit

Publications (2)

Publication Number Publication Date
KR970017310A true KR970017310A (en) 1997-04-30
KR0150120B1 KR0150120B1 (en) 1998-10-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950033020A KR0150120B1 (en) 1995-09-29 1995-09-29 Recording type detecting circuit

Country Status (1)

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KR0150120B1 (en) 1998-10-15

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