KR940022372A - Audio signal level automatic adjustment - Google Patents
Audio signal level automatic adjustment Download PDFInfo
- Publication number
- KR940022372A KR940022372A KR1019930003317A KR930003317A KR940022372A KR 940022372 A KR940022372 A KR 940022372A KR 1019930003317 A KR1019930003317 A KR 1019930003317A KR 930003317 A KR930003317 A KR 930003317A KR 940022372 A KR940022372 A KR 940022372A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- channel
- audio
- level
- reproduced
- Prior art date
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/004—Recording on, or reproducing or erasing from, magnetic drums
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
본 발명은 캠코더 등의 영상 신호 처리기기에서 FM 변조 기록되어 있는 오디오 신호를 재생하여 각 채널의 오디오 알.에프(RF)신호 레벨을 서로 비교하고, 그 비교결과 각 채널의 RF신호 레벨에 차이가 있는 경우 이를 동일한 레벨이 되도록 자동적으로 보정해 줄 수 있도록 한 재생 오디오 알.애프(RF)신호 레벨자동 조절 장치에 관한 것이다.The present invention reproduces an audio signal recorded by FM modulation in a video signal processing device such as a camcorder, and compares the audio signal levels of each channel with each other. The present invention relates to a reproducing audio R. signal (RF) signal automatic control device that automatically compensates for the same level, if any.
종래의 재생 오디오 알.에프(RF)신호 레벨 자동 조절 장치는 입력된 신호를 단순히 잡음 제거하여 복조하기 대문에 각 채널에서 재생되는 RF신호의 레벨에 차이가 발생된 경우나 또는 헤드의 기구적 단차로 인하여 이 헤드에서 재생되는 각 체널의 RF신호 레벨에 차이가 발생되는 현상을 극복할 수 없으며, 따라서 채널별 신호 레벨의 상이함으로 인한 오디오 노이즈(AUDIO BUZZ NOISE)발생의 문제점과, 과다한 드롭아웃(DROP OUT)발생의 문제점이 있다.Conventional regenerative audio R.F.level automatic adjustment device simply removes the input signal and demodulates it, so that there is a difference in the level of the RF signal reproduced in each channel or the mechanical step of the head. Due to this, it is not possible to overcome the phenomenon of difference in the RF signal level of each channel reproduced by this head. DROP OUT) occurs.
본 발명은 각 채널에서 재생되는 RF신호의 레벨을 서로 비교하고 이 비교 결과 재생 신호의 레벨에 차이가 발생되면 그 차이값 만큼 마이컴에서 해당 채널의 레벨을 보정하여 두 채널의 재생 오디오 RF신호 레벨을 일치시켜 주고, 이에 따른 고 음질 신호 재생을 확보 할 수 있도록 한 것으로 캠코더와 같은 영상신호 처리 기기에서 기록 오디오 RF신호를 재생하는 장치에 적용한다.The present invention compares the levels of the RF signals reproduced in each channel with each other, and if a difference occurs in the level of the reproduced signal as a result of the comparison, the microcomputer corrects the levels of the corresponding channels by the difference value, thereby adjusting the reproduction audio RF signal levels of the two channels. In order to ensure high quality signal reproduction, the present invention is applied to a device for reproducing a recording audio RF signal in a video signal processing device such as a camcorder.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제2도는 본 발명의 재생 오디오 알.에프(RF)신호 레벨 자동 조절 장치 회로,2 is a circuit for automatically adjusting a reproduction audio RF signal level of the present invention;
제3도는 본 발명의 장치의 각 부분에서의 신호 파형도.3 is a signal waveform diagram at each part of the apparatus of the present invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930003317A KR950008743B1 (en) | 1993-03-05 | 1993-03-05 | Rf signal level regulating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930003317A KR950008743B1 (en) | 1993-03-05 | 1993-03-05 | Rf signal level regulating device |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940022372A true KR940022372A (en) | 1994-10-20 |
KR950008743B1 KR950008743B1 (en) | 1995-08-04 |
Family
ID=19351710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930003317A KR950008743B1 (en) | 1993-03-05 | 1993-03-05 | Rf signal level regulating device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950008743B1 (en) |
-
1993
- 1993-03-05 KR KR1019930003317A patent/KR950008743B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR950008743B1 (en) | 1995-08-04 |
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