KR970017428A - Analog-to-digital converter for video - Google Patents
Analog-to-digital converter for video Download PDFInfo
- Publication number
- KR970017428A KR970017428A KR1019950030038A KR19950030038A KR970017428A KR 970017428 A KR970017428 A KR 970017428A KR 1019950030038 A KR1019950030038 A KR 1019950030038A KR 19950030038 A KR19950030038 A KR 19950030038A KR 970017428 A KR970017428 A KR 970017428A
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- analog conversion
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Abstract
본 발명은 비디오 테이프 레코더에 관한 것으로, 특히 아날로그 비디오 신호를 디지탈 변환하는 장치에 제공한다. 그 장치는 비디오 테이프 레코더에서 아날로그 비디오 신호를 디지탈 신호로 변환하는 장치에 있어서, 상기 아날로그 비디오 신호와 소정 비트의 디지탈 신호에 따라 디지탈-아날로그 변환을 수행하는 제1적분형 디지탈-아날로그 변환수단과, 상기 제1적분형 디지탈-아날로그 변환수단의 출력신호와 상기 소정 비트의 디지탈 신호에 따라 디지탈-아날로그 변환을 수행하는 제2적분형 디지탈-아날로그 변환수단과, 상기 제2적분형 디지탈-아날로그 변환수단의 출력신호를 디지탈 신호로 변환하는 아날로그-디지탈 변환수단을 구비한 것을 특징으로 한다. 본 발명에 의하면, 비교적 간단한 회로로서 9∼10비트의 디지탈-아날로그 변환의 정확성을 달성함으로써, 화질을 개선할 수 있다는 잇점이 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to video tape recorders, and more particularly, to an apparatus for digitally converting analog video signals. An apparatus for converting an analog video signal into a digital signal in a video tape recorder, the apparatus comprising: first integral digital to analog conversion means for performing digital to analog conversion in accordance with the analog video signal and a predetermined bit of digital signal; Second integrating digital-to-analog conversion means for performing digital-to-analog conversion in accordance with the output signal of the first integrating digital-to-analog conversion means and the digital signal of the predetermined bit, and the second integrating digital-to-analog conversion means And analog-to-digital conversion means for converting the output signal of the digital signal to a digital signal. According to the present invention, the image quality can be improved by achieving the accuracy of the digital to analog conversion of 9 to 10 bits as a relatively simple circuit.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제2도는 본 발명에 따른 비디오용 아날로그-디지탈 변환기를 설명하기 위한 블록도이다.2 is a block diagram illustrating an analog-to-digital converter for video according to the present invention.
제3도는 본 발명에 따른 비디오용 아날로그-디지탈 변환장치의 다른 실시예를 설명하기 위한 블록도이다.3 is a block diagram for explaining another embodiment of the analog-to-digital converter for video according to the present invention.
제4도는 제3도에 도시된 적분형 아날로그-디지탈 변환기를 상세히 설명하기 위한 회로도이다.FIG. 4 is a circuit diagram for explaining in detail the integrated analog-digital converter shown in FIG.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950030038A KR970017428A (en) | 1995-09-14 | 1995-09-14 | Analog-to-digital converter for video |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950030038A KR970017428A (en) | 1995-09-14 | 1995-09-14 | Analog-to-digital converter for video |
Publications (1)
Publication Number | Publication Date |
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KR970017428A true KR970017428A (en) | 1997-04-30 |
Family
ID=66615680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019950030038A KR970017428A (en) | 1995-09-14 | 1995-09-14 | Analog-to-digital converter for video |
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KR (1) | KR970017428A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100810068B1 (en) * | 2005-11-11 | 2008-03-05 | 엠텍비젼 주식회사 | Method and Apparatus for digital conversion of analog A/V signal |
-
1995
- 1995-09-14 KR KR1019950030038A patent/KR970017428A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100810068B1 (en) * | 2005-11-11 | 2008-03-05 | 엠텍비젼 주식회사 | Method and Apparatus for digital conversion of analog A/V signal |
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