KR970049206A - DC level shift circuit - Google Patents
DC level shift circuit Download PDFInfo
- Publication number
- KR970049206A KR970049206A KR1019960065877A KR19960065877A KR970049206A KR 970049206 A KR970049206 A KR 970049206A KR 1019960065877 A KR1019960065877 A KR 1019960065877A KR 19960065877 A KR19960065877 A KR 19960065877A KR 970049206 A KR970049206 A KR 970049206A
- Authority
- KR
- South Korea
- Prior art keywords
- circuit
- level shift
- constant current
- transistor
- resistor
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/72—Circuits for processing colour signals for reinsertion of DC and slowly varying components of colour signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
- H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
Abstract
본 발명은, Y/C 신호 처리회로(4)에서의 휘도 신호의 직류 전위를 시프트하는 것을 목적으로 한다.An object of the present invention is to shift the DC potential of the luminance signal in the Y / C signal processing circuit 4.
문자 신호 삽입회로(5)의 직류 전위에 따라, Y/C 신호 처리회로(4)에서의 휘도 신호의 직류 전위를 시프트시키는 정전류 회로(6), 또는 커런트 미러 회로와, 정전류회로(6)의 출력을 일단 버퍼하고, 다음 단의 문자 신호 삽입회로(5)에 발생하는 불필요한 전기적 영향을 방지하는 버퍼회로(7)로 구성된다.According to the direct current potential of the character signal insertion circuit 5, the constant current circuit 6 or the current mirror circuit and the constant current circuit 6 for shifting the direct current potential of the luminance signal in the Y / C signal processing circuit 4 It consists of a buffer circuit 7 which buffers the output once and prevents unnecessary electrical influence occurring in the character signal insertion circuit 5 of the next stage.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
도 2 는 본 발명에 기초한 DC 레벨 시프트회로의 제 1 실시 형태를 도시한 회로도.2 is a circuit diagram showing a first embodiment of a DC level shift circuit according to the present invention;
도 3 은 본 발명에 기초한 DC 레벨 시프트회로의 제 2 실시 형태를 도시한 회로도.3 is a circuit diagram showing a second embodiment of a DC level shift circuit based on the present invention;
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34160595A JP3759646B2 (en) | 1995-12-27 | 1995-12-27 | DC level shift circuit |
JP341605/1995 | 1995-12-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970049206A true KR970049206A (en) | 1997-07-29 |
KR100214628B1 KR100214628B1 (en) | 1999-08-02 |
Family
ID=18347376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960065877A KR100214628B1 (en) | 1995-12-27 | 1996-12-14 | Dc level shift circuit |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP3759646B2 (en) |
KR (1) | KR100214628B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200111412A (en) | 2019-03-19 | 2020-09-29 | 배성주 | Moisture supply device of an electric rice cooker for preventing rice from drying and discoloring by supplying proper moisture |
KR20200127147A (en) | 2019-03-19 | 2020-11-10 | 배성주 | Moisture supply device of an electric rice cooker for preventing rice from drying and discoloring by supplying proper moisture |
-
1995
- 1995-12-27 JP JP34160595A patent/JP3759646B2/en not_active Expired - Fee Related
-
1996
- 1996-12-14 KR KR1019960065877A patent/KR100214628B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200111412A (en) | 2019-03-19 | 2020-09-29 | 배성주 | Moisture supply device of an electric rice cooker for preventing rice from drying and discoloring by supplying proper moisture |
KR20200127147A (en) | 2019-03-19 | 2020-11-10 | 배성주 | Moisture supply device of an electric rice cooker for preventing rice from drying and discoloring by supplying proper moisture |
Also Published As
Publication number | Publication date |
---|---|
JPH09187029A (en) | 1997-07-15 |
KR100214628B1 (en) | 1999-08-02 |
JP3759646B2 (en) | 2006-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20070418 Year of fee payment: 9 |
|
LAPS | Lapse due to unpaid annual fee |