KR970050449A

KR970050449A - Function control device according to sound section detection of video tape

Info

Publication number: KR970050449A
Application number: KR1019950050273A
Authority: KR
Inventors: 김성준
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-12-15
Filing date: 1995-12-15
Publication date: 1997-07-29

Abstract

본 발명은 비디오 테이프 레코더에서 비디오테이프의 재생시에 무음성 구간의 검출에 의해 무음구간에 대한 빠른 재생이 이루어지도록 함가 더불어, 고음성구간의 검출에 의해 고음구간이 뮤팅될 수 있도록 하는 비디오테이프의 음성구간 검출에 따른 기능제어장치를 제공한다.According to the present invention, a video tape recorder enables fast playback of a silent section by detecting an unvoiced section at the time of playing a video tape, and also allows a high-pitched section to be muted by detecting a high voice section. Provided is a function control apparatus according to section detection.

그에 따라 본 발명은 비디오테이프(10)에 기록된 영상신호를 영상기록/독취부(8)에서 독취하여 영상처리부(6)를 통해 재생가능하게 영상처리함과 더불어, 그 음성신호를 음성기록/독취부(20)에서 독취하여 음성중폭부(22)를 통해 증폭하고 음성신호 처리부(24)를 통해 음성재생가능하게 신호처리할 수 있도록 된 비디오 테이프 레코더에 있어서; 재생기능에 의해 무음성구간과 고음성구간을 검출하는데 따른 빠른 재생기능과 고음 통과 기능의 수행을 위한 실행모드를 키설정하는 기능설정수단(2)과, 상기 비디오테이프(10)의 무음성구간 검출에 따른 빠른 재생을 위해 서보제어동작하는 서보수단(12), 상기 서보수단(12)의 서보제어하에 무음성구간에 대한 빠른 재생이 가능하도록 구동되는 모터구동수단(14,16,18), 상기 음성기록 /독취부(20)를 통해 독취되는 비디오테이프(10)로 부터의 음성신호에서 무음성구간과 고음성구간을 각각 검출하는 재생음성레벨검출수단(26) 및, 상기 기능설정부(2)에 의한 빠른 재생모드의 설정에 따라 상기 재생음성레벨검출수단(26)을 통해 검출되는 무음성구간에 대해 빠른 재생이 이루어지도록 제어함과 더불어, 그 기능설정부(2)에 의한 고음통과모드에 따라 상기 재생음성레벨검출수단(26)으로부터 검출되는 고음성구간에 대해 음성뮤팅되도록 제어하는 제어수단(28)을 구비하여 구성된 것을 특징으로 한다.Accordingly, according to the present invention, the video signal recorded on the video tape 10 is read by the video recording / reading unit 8, and the video signal is reproduced by the video processing unit 6, and the audio signal is recorded. A video tape recorder which is read by a reading unit 20 and amplified by a voice width unit 22, and which can be processed by a voice signal processing unit 24 so as to reproduce a voice. A function setting means (2) for key setting an execution mode for performing a fast playback function and a high-pass passage function for detecting an unvoiced section and a high-voice section by a playback function, and a silent section of the video tape 10; Servo means 12 for servo control operation for fast regeneration according to detection, motor drive means 14, 16, 18 driven to enable fast regeneration for the silent section under servo control of the servo means 12, Playback audio level detection means 26 for detecting an unvoiced section and a high voice section in the audio signal from the video tape 10 read out through the audio recording / reading section 20, and the function setting section (26). According to the setting of the fast reproducing mode by 2), the reproducing sound level detecting means 26 controls to perform a fast reproducing for the unvoiced section, and the high sound passing by the function setting section 2 is performed. Play above depending on the mode And a control means 28 for controlling to mute the voice for the high voice interval detected by the voice level detecting means 26.

Description

Function control device according to sound section detection of video tape

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

제1도는 본 발명에 따른 비디오테이프의 음성구간 검출에 따른 기능제어장치를 나타낸 블럭구성도.1 is a block diagram showing a function control apparatus for detecting a sound section of a video tape according to the present invention.

Claims

The image signal recorded on the video tape 10 is read by the image recording / reading unit 8 and image-reproduced by the image processing unit 6, and the audio signal is recorded by the audio recording / reading unit 20. In a video tape recorder capable of reading a signal from the voice amplitude section 22 and amplifying it through the voice width processing section 22 and processing the signal through a voice signal processing section 24 so as to reproduce the voice, a sound section and a high sound section are detected by a playback function. Function setting means (2) for key setting an execution mode for performing a fast reproducing function and a high pass function, and a servo means for performing servo control for fast reproducing according to detection of a silent section of the video tape (10). (12), which is read out by the motor driving means (14, 16, 18) and the audio recording / reading unit (20) which are driven to enable fast reproduction of the silent section under the servo control of the servo means (12). We attach to video tape (10) The reproducing sound level detecting means 26 for detecting an unvoiced section and a high sounding section, respectively, in accordance with the voice signal of the reproducing sound level detecting means 26 in accordance with the setting of the fast reproducing mode by the function setting section 2; With respect to the high sound interval detected by the reproduction sound level detecting means 26 in accordance with the high sound passage mode by the function setting unit 2, the control is performed so as to quickly reproduce the uninterrupted sound interval detected through the And a control means (28) for controlling to mute the voice.

The switching sound source according to claim 1, wherein the reproducing sound level detecting means (26) is selectively switched in accordance with the fast regeneration mode and the high sound passage mode under the control of the control means (28), and the switching switch unit. A first bandpass filter 32 for filtering the voice signal of the video tape 10 through the signal 30 through the signal band of the unvoiced signal, and comparing the filtered voice signal with the reference signal Vref1. A second band pass filter 36 for filtering the audio signal of the video tape 10 through the first comparator 34 and the switching switching unit 30 to generate a voice detection signal by passing a signal band of a high audio signal. And a second comparator (38) for generating a high voice detection signal by comparing the filtered voice signal with a reference signal (Vref1).

※ Note: The disclosure is based on the initial application.