KR970076698A - Voice level variable control circuit on audio output line of VCR - Google Patents

Voice level variable control circuit on audio output line of VCR Download PDF

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Publication number
KR970076698A
KR970076698A KR1019960018936A KR19960018936A KR970076698A KR 970076698 A KR970076698 A KR 970076698A KR 1019960018936 A KR1019960018936 A KR 1019960018936A KR 19960018936 A KR19960018936 A KR 19960018936A KR 970076698 A KR970076698 A KR 970076698A
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KR
South Korea
Prior art keywords
line
signal
attenuation
vcr
high frequency
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KR1019960018936A
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Korean (ko)
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KR100231442B1 (en
Inventor
김창진
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배순훈
대우전자 주식회사
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Priority to KR1019960018936A priority Critical patent/KR100231442B1/en
Publication of KR970076698A publication Critical patent/KR970076698A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • 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
    • G11B20/02—Analogue recording or reproducing
    • G11B20/04—Direct recording or reproducing

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

본 발명은 음성 출력라인의 감쇠량을 사용자의 의도에 따라 가변하여 VCR을 거쳐 TV로 들어오는 음성신호의 출력레벨을 조정할 수 있는 VCR의 음성레벨 가변 제어회로에 관한 것으로서, 모노 방식 VCR을 스테레오방식 TV에 연결하여 사용하는 경우 VCR을 통해 라인입력 또는 고주파(RF) 입력신호를 수신하거나 테이프를 재생하여 TV로 출력할 때 하나의 VCR 볼륨이 두개의 TV 볼륨으로 나뉘어 출력되는 이류로 TV와 VCR의 볼륨레벨이 동일하게 설정되어 있는 상태에서 실제 음성신호의 크기가 작아지는 것을 보상하기 위한 것이다.The present invention relates to a voice level variable control circuit of a VCR capable of adjusting the output level of a voice signal coming into a TV via a VCR by varying an attenuation amount of a voice output line according to a user's intention. When connected and used, a VCR volume is divided into two TV volumes and the volume level of the TV and VCR is output when receiving line input or high frequency (RF) input signals through a VCR or playing a tape to a TV. This is to compensate for the fact that the size of the actual audio signal is reduced in the same set state.

이를 위하여 본 발명은 음성 헤드에서 픽업된 후 고역 보상되고 증폭 및 VHS 규격에 맞도록 주파수 특성이 조정된 재생 음성신호를 주파수에 무관하게 레벨조정하여 출력을 감쇠시키는 재생신호 감쇠부와, 라인 혹은 고주파 입력단자를 통해 들어온 라인/고주파 입력신호를 주파수에 무관하게 레벨조정하여 출력을 감쇠시키는 라인/고주파 신호 감쇠부를 구비하고, 상기 재생신호 감쇠부 및 라인/고주파 신호 감쇠부의 두 출력중의 하나를 VCR의 동작 모등에 따라 선태가여 음성 출력라인으로 전송하는 재생/라인 절환부를 구비하여 상기 재생/라인 절환부에서 선택되는 음성 출력을 2차 증폭 및 저역 필터링하여 단일 음성신호를 력하는 VCR의 음성 출력회로에 있어서, 상기 재생신호 감쇠부 및 라인/고주파 신호 감쇠부의 음성 감쇠량을 각각 가변하기 위한 음성감쇠량 가변수단; 상기 음성감쇠량 가변수단을 사용자의 의도에 따라 스위칭 제어하는 스위칭 제어수단을 포함하여 구성함을 특징으로 한다.To this end, the present invention provides a reproduction signal attenuation unit which attenuates the output by a level adjustment of a resonant voice signal, which is high-frequency compensated after being picked up from the voice head and whose frequency characteristics are adjusted to conform to the amplification and VHS standards, regardless of the frequency, and a line or high frequency A line / high frequency signal attenuator for attenuating the output by level-adjusting the line / high frequency input signal input through the input terminal irrespective of the frequency, and one of the two outputs of the reproduction signal attenuation section and the line / The audio output circuit of the VCR which has a reproduction / line switching unit which transmits to the audio output line according to the operation mode of the audio signal and outputs a single audio signal by performing secondary amplification and low pass filtering on the audio output selected by the reproduction / line switching unit. To vary the amount of speech attenuation of the reproduction signal attenuation section and the line / high frequency signal attenuation section, respectively, Sound attenuation varying means; It characterized in that it comprises a switching control means for switching the voice attenuation variable means switching control in accordance with the user's intention.

Description

VCR의 음성 출력라인상의 음성레벨 가변 제어회로Voice level variable control circuit on audio output line of VCR

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

제2도는 제1도의 상세회로도, 제3도는 본 발명의일 실시예에 따른 VCR의 음성 출력라인상의 음성레벨 가변 제어회로도.2 is a detailed circuit diagram of FIG. 1, and FIG. 3 is a voice level variable control circuit diagram on a voice output line of a VCR according to an embodiment of the present invention.

Claims (3)

음성 헤드에서 픽업된 후 고역 보상되고 증폭 및 VHS 규격에 맞도록 주파수 특성이 조정된 재생 음성신호를 주파수에 무관하게 레벨조정하여 출력을 감쇠시키는 재생신호 감쇠부와, 라인 혹은 고주파 입력단자를 통해 들어온 라인/고주파 입력신호를 주파수에 무관하게 레벨조정하여 출력을 감쇠시키는 라인/고주파 신호 감쇠부를 구비하고, 상기 재생신호 감쇠부 및 라인/고주파 신호 감쇠부를 구비하고, 상기 재생신호 감쇠부 및 라인/고주파 신호 감쇠부의 두 출력중의 하나를 VCR의 동작 모드에 따라 선택하여 음성 출력라인으로 전송하는 재생/라인 절환부를 구비하여 상기 재생/라인 절환부에서 선택되는 음성 출력을 2차 증폭 및 저역 필터링하여 단일 음성신호를 출력하는 VCR의 음성 출력회로에 있어서, 상기 재생신호 감쇠부 및 라인/고주파 신호 감쇠부의 음성 감쇠량을 각각 가변하기 위한 음성감쇠량 가변수단; 상기 음성감쇠량 가변수단을 사용자의 의도에 따라 스위칭 제어하는 스위칭 제어수단을 포함하여 구성함을 특징으로 하는 VCR의 음성 출력라인상의 음성레벨 가변 제어회로.A playback signal attenuation unit that picks up from the voice head and then attenuates the output by adjusting the frequency response to a high frequency compensated, amplified and VHS standard attenuated regardless of frequency. A line / high frequency signal attenuator for attenuating the output by leveling the line / high frequency input signal irrespective of the frequency, and having the reproduced signal attenuator and a line / high frequency signal attenuator; One of the two outputs of the signal attenuation unit is selected according to the operation mode of the VCR, and has a playback / line switching unit for transmitting to the audio output line. In an audio output circuit of a VCR for outputting an audio signal, the reproduction signal attenuation unit and the line / high frequency signal Sound attenuation amount varying means for varying the sound attenuation hinge portion, respectively; And a switching control means for switching the voice attenuation variable varying means according to a user's intention. 제1항에 있어서, 상기 음성 감쇠량 가변수단은 재생신호 감쇠부 및 라인/고주파 신호 감쇠부에 각각 연결되는 병렬저항(R10)(R11); 베이스에 인가되는 전압에 따라 상기 두 병렬저항의 접속을 개폐하는 스위칭 트랜지스터(Q1)(Q2)로 구성함을 특징으로 하는 VCR의 음성 출력라인상의 음성레벨 가변 제어회로.2. The apparatus according to claim 1, wherein said voice attenuation variable varying means comprises: parallel resistors (R10) (R11) connected to a reproduction signal attenuation section and a line / high frequency signal attenuation section, respectively; And a switching transistor (Q1) (Q2) for opening and closing the connection of the two parallel resistors in accordance with a voltage applied to a base. 제1항에 있어서, 상기의 스위칭 제어수단을 외부 사용자가 음성 레벨의 감쇠량을 증감하여 설정할 수 있도록 제어용 버튼을 구비한 리모트 콘트롤러(12B); 상기 리모트 콘트롤러의 제어용 버튼신호를 받아들여 분석하고 그 결과에 따라 출력논리를 다르게 변화시키는 마이크로 프로세서(12A)로 구성함을 특징으로 하는 VCR의 음성 출력라인상의 음성레벨 가변 제어회로.2. The remote control apparatus according to claim 1, further comprising: a remote controller (12B) having a control button so that an external user can increase or decrease the amount of attenuation of a voice level; And a microprocessor (12A) for receiving and analyzing the control button signal of the remote controller and for varying the output logic according to the result. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960018936A 1996-05-31 1996-05-31 Voice level variable control circuit in voice output line of vcr KR100231442B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960018936A KR100231442B1 (en) 1996-05-31 1996-05-31 Voice level variable control circuit in voice output line of vcr

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KR1019960018936A KR100231442B1 (en) 1996-05-31 1996-05-31 Voice level variable control circuit in voice output line of vcr

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KR970076698A true KR970076698A (en) 1997-12-12
KR100231442B1 KR100231442B1 (en) 1999-11-15

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