KR980004347A - Digital V-Cal Video Switching Device - Google Patents

Digital V-Cal Video Switching Device Download PDF

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Publication number
KR980004347A
KR980004347A KR1019960022683A KR19960022683A KR980004347A KR 980004347 A KR980004347 A KR 980004347A KR 1019960022683 A KR1019960022683 A KR 1019960022683A KR 19960022683 A KR19960022683 A KR 19960022683A KR 980004347 A KR980004347 A KR 980004347A
Authority
KR
South Korea
Prior art keywords
vhs
mode
digital
playback
switching device
Prior art date
Application number
KR1019960022683A
Other languages
Korean (ko)
Other versions
KR100220830B1 (en
Inventor
김재진
Original Assignee
배순훈
대우전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019960022683A priority Critical patent/KR100220830B1/en
Publication of KR980004347A publication Critical patent/KR980004347A/en
Application granted granted Critical
Publication of KR100220830B1 publication Critical patent/KR100220830B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer

Abstract

본 발명은 디지탈 브이씨알의 비디오방식 자동전환 장치에 관한 것으로서, 이는 디지탈 비디오방식(D-VHS)과 일반 비디오방식(VHS)의 구분을, 데크에 로딩되는 기록매체의 종류에 따라 기구적으로 결정하지 않고 기록되어 있는 신호를 검출하여 자동으로 전환하도록 한 것이다.The present invention relates to an automatic video switching device of digital VLC, which distinguishes between the digital video system (D-VHS) and the general video system (VHS) according to the type of recording medium loaded on the deck. Instead, it detects the recorded signal and switches over automatically.

이와 같은 본 발명은 재생모드시 헤드로부터 스캔되어 정류수단 및 피크/홀드수단을 통해 입력되는 재생신호의 존재 유무를 판단하는 단계와; 상기 판단한 결과 재생신호가 존재하면 기 설정된 VHS방식의 기준값과를 비교하는 단계와; 상기 비교한 결과 재생신호가 기준값보다 크면 현재 데크에 로딩된 테이프가 D-VHS방식으로 기록되어 있는 테이프라 판단하여 D-VSH모드로 재생하고 기준값보다 작으면 VHS방식으로 기록되어 있는 테이프로 판단하여 VHS모드로 재생하는 단계로 이루짐으로서, 달성된다.As described above, the present invention includes the steps of determining whether there is a playback signal scanned from the head in the playback mode and input through the rectifying means and the peak / hold means; Comparing the reference value of the preset VHS method with a playback signal as a result of the determination; As a result of the comparison, if the playback signal is larger than the reference value, it is judged that the tape loaded in the deck is recorded in D-VHS mode. This is achieved by making the playback in the VHS mode.

Description

디지탈 브이씨알 비디오방식 자동전환 장치Digital V-Video Automatic Switching Device

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

제1도는 종래 디지탈 브이씨알의 비디오방식 전환장치를 도시한 블록도.1 is a block diagram showing a conventional digital video conversion device of digital VR.

제2도는 본 발명 디지탈 브이씨알의 비디오방식 자동 전환장치를 보인 일실시예 블록도.FIG. 2 is a block diagram showing an embodiment of a video automatic switching device of a digital VR of the present invention.

Claims (2)

재생모드시 헤드로부터 스캔되어 헤전트랜스를 통한 재생신호를 검출하여 증폭출력하는 기록신호 검출수단과; 상기 검출된 재생신호를 저역필터링하여 고주파성분을 제거하는 저역필터수단과; 상기 저역필터수단에서 얻어진 재생신호를 정류하여 출력하는 정류수단과; 상기 정류수단에서 얻어진 직류전압으로부터 최고치를 검출 유지하여 출력하는 피크 및 홀드수단과; 상기 피크 및 홀드수단에서 얻어진 전압 레벨과 기 설정된 기준전압과를 비교하여 그 비교 결과전압에 따라 현재 데크에 로딩된 테이프의 종류를 판단하여 D-VHS모드 또는 VHS모드를 제어하는 마이크로 프로세서와; 를 포함하여 이루어진 것을 특징으로 한 디지탈 브이씨알의 비디오방식 자동전환 장치.Recording signal detection means which scans from the head in reproduction mode and detects and amplifies and reproduces the reproduction signal through the head transformer; Low-pass filter means for low-pass filtering the detected reproduction signal to remove high frequency components; Rectifying means for rectifying and outputting a reproduction signal obtained by said low pass filter means; Peak and hold means for detecting and holding the highest value from the DC voltage obtained by the rectifying means; A microprocessor which controls the D-VHS mode or the VHS mode by comparing the voltage level obtained by the peak and hold means with a preset reference voltage and determining the type of tape currently loaded in the deck according to the comparison result voltage; Digital V-CD automatic switching device, characterized in that made, including. 제1항에 있어서, 상기 설정된 기준전압은 VHS의 엔벨로프값인 것을 특징으로 한 디지탈 브이씨알의 비디오방식 자동전환 장치.The apparatus of claim 1, wherein the set reference voltage is an envelope value of VHS. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960022683A 1996-06-20 1996-06-20 Dvcr KR100220830B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960022683A KR100220830B1 (en) 1996-06-20 1996-06-20 Dvcr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960022683A KR100220830B1 (en) 1996-06-20 1996-06-20 Dvcr

Publications (2)

Publication Number Publication Date
KR980004347A true KR980004347A (en) 1998-03-30
KR100220830B1 KR100220830B1 (en) 1999-10-01

Family

ID=19462735

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960022683A KR100220830B1 (en) 1996-06-20 1996-06-20 Dvcr

Country Status (1)

Country Link
KR (1) KR100220830B1 (en)

Also Published As

Publication number Publication date
KR100220830B1 (en) 1999-10-01

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