JPH0392870U - - Google Patents
Info
- Publication number
- JPH0392870U JPH0392870U JP1990110465U JP11046590U JPH0392870U JP H0392870 U JPH0392870 U JP H0392870U JP 1990110465 U JP1990110465 U JP 1990110465U JP 11046590 U JP11046590 U JP 11046590U JP H0392870 U JPH0392870 U JP H0392870U
- Authority
- JP
- Japan
- Prior art keywords
- circuits
- circuit
- period
- video signal
- reference level
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
- H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
- H04N5/185—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP89120008.1 | 1989-10-27 | ||
| EP89120008 | 1989-10-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0392870U true JPH0392870U (US20070167544A1-20070719-C00007.png) | 1991-09-20 |
| JP2537491Y2 JP2537491Y2 (ja) | 1997-06-04 |
Family
ID=8202068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990110465U Expired - Lifetime JP2537491Y2 (ja) | 1989-10-27 | 1990-10-22 | ビデオ信号を基準レベルに切換可能な回路装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5128764A (US20070167544A1-20070719-C00007.png) |
| JP (1) | JP2537491Y2 (US20070167544A1-20070719-C00007.png) |
| DE (1) | DE4032724A1 (US20070167544A1-20070719-C00007.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006237921A (ja) * | 2005-02-24 | 2006-09-07 | Audio Technica Corp | コンデンサマイクロホン |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4215444C2 (de) * | 1992-05-11 | 1994-02-24 | Telefunken Microelectron | Integrierte Schaltungsanordnung |
| JPH07131677A (ja) * | 1993-11-02 | 1995-05-19 | Nec Corp | ビデオ信号のサグ補正回路 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS545324A (en) * | 1977-06-14 | 1979-01-16 | Nec Corp | Clamp circuit |
| JPS6257470U (US20070167544A1-20070719-C00007.png) * | 1985-09-26 | 1987-04-09 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57131175A (en) * | 1981-02-06 | 1982-08-13 | Nec Corp | Video signal clamping circuit |
| US4516042A (en) * | 1982-06-30 | 1985-05-07 | Tektronix, Inc. | Clamp circuits |
| JPS61148973A (ja) * | 1984-12-24 | 1986-07-07 | Toshiba Corp | 撮像装置のクランプ回路 |
| JPH0666902B2 (ja) * | 1985-03-15 | 1994-08-24 | ソニー株式会社 | クランプ回路 |
| DE3673255D1 (de) * | 1985-05-21 | 1990-09-13 | Citizen Watch Co Ltd | Automatische austastpegel-klemmschaltung. |
| GB8524200D0 (en) * | 1985-10-01 | 1985-11-06 | Rca Corp | Combined clamping & blanking circuit |
| DE3535570A1 (de) * | 1985-10-04 | 1987-04-09 | Siemens Ag | Schaltung zur automatischen einstellung der schwarzwertspannung |
| US4707741A (en) * | 1986-04-11 | 1987-11-17 | Harris Corporation | Video signal clamping with clamp pulse width variation with noise |
| DE3620990C2 (de) * | 1986-06-23 | 1995-04-13 | Broadcast Television Syst | Verfahren und Schaltungsanordnung zur nichtlinearen Übertragung eines Videosignals |
| NL8700294A (nl) * | 1987-02-09 | 1988-09-01 | At & T & Philips Telecomm | Klemcircuit voor een televisietransmissiesysteem. |
| JP2517279B2 (ja) * | 1987-05-20 | 1996-07-24 | 三洋電機株式会社 | シンクチツプクランプ回路 |
| JPH029275A (ja) * | 1988-06-28 | 1990-01-12 | Mitsubishi Electric Corp | ビデオ信号黒レベルクランプ回路 |
-
1990
- 1990-09-24 US US07/586,873 patent/US5128764A/en not_active Expired - Fee Related
- 1990-10-15 DE DE4032724A patent/DE4032724A1/de not_active Withdrawn
- 1990-10-22 JP JP1990110465U patent/JP2537491Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS545324A (en) * | 1977-06-14 | 1979-01-16 | Nec Corp | Clamp circuit |
| JPS6257470U (US20070167544A1-20070719-C00007.png) * | 1985-09-26 | 1987-04-09 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006237921A (ja) * | 2005-02-24 | 2006-09-07 | Audio Technica Corp | コンデンサマイクロホン |
| JP4560424B2 (ja) * | 2005-02-24 | 2010-10-13 | 株式会社オーディオテクニカ | コンデンサマイクロホン |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4032724A1 (de) | 1991-05-02 |
| JP2537491Y2 (ja) | 1997-06-04 |
| US5128764A (en) | 1992-07-07 |
