JPH0119794B2 - - Google Patents
Info
- Publication number
- JPH0119794B2 JPH0119794B2 JP57172398A JP17239882A JPH0119794B2 JP H0119794 B2 JPH0119794 B2 JP H0119794B2 JP 57172398 A JP57172398 A JP 57172398A JP 17239882 A JP17239882 A JP 17239882A JP H0119794 B2 JPH0119794 B2 JP H0119794B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- black level
- control circuit
- output
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Television Receiver Circuits (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57172398A JPS5961378A (ja) | 1982-09-30 | 1982-09-30 | 黒レベル補正回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57172398A JPS5961378A (ja) | 1982-09-30 | 1982-09-30 | 黒レベル補正回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5961378A JPS5961378A (ja) | 1984-04-07 |
| JPH0119794B2 true JPH0119794B2 (cs) | 1989-04-13 |
Family
ID=15941196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57172398A Granted JPS5961378A (ja) | 1982-09-30 | 1982-09-30 | 黒レベル補正回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5961378A (cs) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5339114A (en) * | 1992-07-29 | 1994-08-16 | Thomson Consumer Electronics, Inc. | Television receiver with luminance signal clamped offset and re-clamped prior to contrast control for preventing black level changes with contrast control changes when displaying luminance signals having elevated black level |
| US5453798A (en) * | 1993-02-05 | 1995-09-26 | Thomson Consumer Electronics, Inc. | Black compensation circuit for a video display system |
-
1982
- 1982-09-30 JP JP57172398A patent/JPS5961378A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5961378A (ja) | 1984-04-07 |
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