KR930015692A - Audio Dubbing Circuit of the Camcorder - Google Patents

Audio Dubbing Circuit of the Camcorder Download PDF

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Publication number
KR930015692A
KR930015692A KR1019910023691A KR910023691A KR930015692A KR 930015692 A KR930015692 A KR 930015692A KR 1019910023691 A KR1019910023691 A KR 1019910023691A KR 910023691 A KR910023691 A KR 910023691A KR 930015692 A KR930015692 A KR 930015692A
Authority
KR
South Korea
Prior art keywords
audio signal
audio
dubbing
output
processing unit
Prior art date
Application number
KR1019910023691A
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Korean (ko)
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KR950013446B1 (en
Inventor
권오상
Original Assignee
이헌조
주식회사 금성사
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Application filed by 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019910023691A priority Critical patent/KR950013446B1/en
Publication of KR930015692A publication Critical patent/KR930015692A/en
Application granted granted Critical
Publication of KR950013446B1 publication Critical patent/KR950013446B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/046—Camera

Abstract

본 발명은 8MM 캠코더의 더빙 및 재생 제어회로에 관한 것으로, 현재까지 일반 가정용 캠코더로는 한번도 오디오 더빙 기능이 적용되지 않고 출시되던 것에 대한 오디오 더빙 기능을 해결하기 위하여 8MM 규격상 사용가능한 FM 오디오 방식과 성형 오디오 방식을 적당히 조합하여 기본 FM 오디오 신호로 기록된 것을 소거시키지 않고 언제든지 재생이 가능하도록 하고, 선형 오디오 방식으로써 오디오 더빙 기록 및 재생이 가능하도록 하였다.The present invention relates to a dubbing and playback control circuit of an 8MM camcorder, and to solve the audio dubbing function of the conventional home camcorder, which has not been applied to the audio dubbing function at all until now. Proper combination of the molded audio system enables playback at any time without erasing what is recorded as the basic FM audio signal, and audio dubbing recording and playback is possible with the linear audio system.

Description

캠코더의 오디오 더빙회로Audio Dubbing Circuit of the Camcorder

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

제1도는 일반적인 8MM 캠코더의 기록/재생 블록도, 제2도는 8MM 캠코더의 트랙에 대한 개략 구성도, 제3도는 본 발명 캠코더의 오디오 더빙회로에 대한 블럭도, 제4도는 제3도에 대한 상세 회로도, 제5도는 제4도 각부의 파형도, 제6도는 본 발명에 적용되는 어셈블리 헤드의 구성도.1 is a block diagram of a recording / playback of a typical 8MM camcorder, FIG. 2 is a schematic block diagram of a track of an 8MM camcorder, FIG. 3 is a block diagram of an audio dubbing circuit of the camcorder of the present invention, and FIG. 4 is a detail of FIG. Fig. 5 is a waveform diagram of each part of Fig. 4, and Fig. 6 is a block diagram of an assembly head to which the present invention is applied.

Claims (1)

외부마이크로(MIC1)의 신호나 라인 음성신호를 FM 변조처리함과 아울러, 재생신호를 처리하는 FM 오디오신호 처리부(11)와, 상기 FM오디오신호 처리부(11)에서 로터리 헤드(RH)로, 또는 반대경로로 출력되는 오디오신호를 소정레벨로 증폭하는 기록/재생 증폭부(12)와, 더빙절환 스위치(SW13)에 선택되는 신호에 따라 상기 FM오디오신호 처리부(11)에 구동제어신호를 출력하는 FM 오디오 신호 제어부(13)와, 상기 더빙 절환스위치(SW13)가 오디오 더빙, 기록재생 단자(AD.REC/PB)에 단락될때 상기 FM 오디오 신호 처리부(11)의 출력신호를 뮤팅시키는 뮤팅부(14)와, 상기 더빙 절환스위치(SW13)가 FM오디오, 기록/재생 단자(FMAVD.REC/PB)에 단락될 때 상기 FM 오디오신호 처리부(11)에서 모니터로 출력되는 오디오신호를 뮤팅시키는 뮤팅부(15)와, 시스템 각부를 총괄 제어하는 시스템 제어용 마이콤(16)과, 입력절환제어부(17)의 출력신호에 의하여 입력절환스위치(SW14)에서 선택되는 외부 마이크신호(MIC2)나 라인 입력단자(Lin2)에서 선택된 오디오신호를 처리하는 선형 오디오신호처리부(18)와, 상기 더빙 절환 스위(SW13)에 출력되는 전원에 따라 상기 선형 오디오신호 처리부(18)의 구동을 제어하는 더빙 절환부(19)와, 상기 선형 오디오신호 처리부(18)출력신호를 적정 수준으로 증폭하는 기록증폭부(20)와, 상기 기록증폭부(20)의 출력신호와 발진부(22)에 출력되는 발진신호를 혼합하여 이를/재생절환 스위치(SW15)를 통해 기록/재생헤드(R/P.H)에 출력하는 혼합부(21)로 구성한 것을 특징으로 하는 캠코더의 오디오 더빙회로.FM audio signal processing unit 11 and FM audio signal processing unit and the line audio signal of the external micro (MIC1), the FM audio signal processing unit 11 for processing the playback signal, the FM audio signal processing unit 11 to the rotary head (RH), or A recording / reproducing amplifier 12 for amplifying the audio signal output in the opposite path to a predetermined level, and outputting a drive control signal to the FM audio signal processor 11 according to a signal selected by the dubbing switch SW13. A muting unit for muting the output signal of the FM audio signal processing unit 11 when the FM audio signal control unit 13 and the dubbing switching switch SW13 are shorted to the audio dubbing and recording / reproducing terminal AD.REC / PB. 14) and a muting unit for muting the audio signal output from the FM audio signal processing unit 11 to the monitor when the dubbing switching switch SW13 is shorted to the FM audio and recording / reproducing terminal FMAVD.REC / PB. (15) and the system for overall control of the system parts Linear audio processing the external microphone signal MIC2 selected by the input switching switch SW14 or the audio signal selected by the line input terminal L in2 by the control microcomputer 16 and the output signal of the input switching control unit 17. A dubbing switching unit 19 for controlling the driving of the linear audio signal processing unit 18 according to a signal processor 18, a power output to the dubbing switching switch SW13, and an output of the linear audio signal processing unit 18. The recording amplifier 20 amplifies the signal to an appropriate level, and the output signal of the recording amplifier 20 and the oscillation signal output to the oscillator 22 are mixed and recorded / reproduced by the regeneration switch SW15. An audio dubbing circuit for a camcorder, comprising: a mixing section 21 output to a playhead R / PH. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910023691A 1991-12-20 1991-12-20 Audio recording/playing apparatus in a camcorder KR950013446B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910023691A KR950013446B1 (en) 1991-12-20 1991-12-20 Audio recording/playing apparatus in a camcorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910023691A KR950013446B1 (en) 1991-12-20 1991-12-20 Audio recording/playing apparatus in a camcorder

Publications (2)

Publication Number Publication Date
KR930015692A true KR930015692A (en) 1993-07-24
KR950013446B1 KR950013446B1 (en) 1995-11-08

Family

ID=19325387

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910023691A KR950013446B1 (en) 1991-12-20 1991-12-20 Audio recording/playing apparatus in a camcorder

Country Status (1)

Country Link
KR (1) KR950013446B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100223179B1 (en) * 1996-11-15 1999-10-15 윤종용 Audio dubbing apparatus of 8mm vcr

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100223179B1 (en) * 1996-11-15 1999-10-15 윤종용 Audio dubbing apparatus of 8mm vcr

Also Published As

Publication number Publication date
KR950013446B1 (en) 1995-11-08

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