BE437358A - - Google Patents
Info
- Publication number
- BE437358A BE437358A BE437358DA BE437358A BE 437358 A BE437358 A BE 437358A BE 437358D A BE437358D A BE 437358DA BE 437358 A BE437358 A BE 437358A
- Authority
- BE
- Belgium
Links
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
- H04N5/165—Circuitry for reinsertion of DC and slowly varying components of signal; Circuitry for preservation of black or white level to maintain the black level constant
-
- 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
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/202—Gamma control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Processing Of Color Television Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US250914A US2255691A (en) | 1939-01-14 | 1939-01-14 | Television signal-translating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE437358A true BE437358A (en:Method) |
Family
ID=22949682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE437358D BE437358A (en:Method) | 1939-01-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2255691A (en:Method) |
| BE (1) | BE437358A (en:Method) |
| FR (1) | FR862876A (en:Method) |
| GB (1) | GB538947A (en:Method) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2594870A (en) * | 1945-11-29 | 1952-04-29 | Us Navy | Indicator |
| US2548436A (en) * | 1946-01-25 | 1951-04-10 | Hazeltine Corp | Television receiver background control circuit |
| US2519238A (en) * | 1947-04-05 | 1950-08-15 | Rca Corp | Biased diode wave shaping circuit |
| US2552588A (en) * | 1947-04-26 | 1951-05-15 | Columbia Broadeasting System I | Gamma control circuit |
| US2692299A (en) * | 1948-12-11 | 1954-10-19 | Westinghouse Electric Corp | Image contrast intensifier |
| US2569297A (en) * | 1948-12-16 | 1951-09-25 | Rca Corp | Direct-current restoring apparatus |
| US2740071A (en) * | 1950-05-11 | 1956-03-27 | Columbia Broadcasting Syst Inc | Television |
| US2760008A (en) * | 1950-08-30 | 1956-08-21 | Rca Corp | Amplifier having controllable signal expansion and compression characteristics |
| NL82594C (en:Method) * | 1952-05-07 | |||
| FR2117909B1 (en:Method) * | 1970-12-16 | 1976-12-03 | Fernseh Gmbh | |
| JPS56107674A (en) * | 1980-01-31 | 1981-08-26 | Sony Corp | Gradation correcting device of video signal |
| JPS627290A (ja) * | 1985-07-04 | 1987-01-14 | Fuji Photo Film Co Ltd | カラ−ネガフイルム撮像における階調補正方法および装置 |
| GB8521019D0 (en) * | 1985-08-22 | 1986-10-01 | Rank Pullin Controls Ltd | Imaging apparatus |
-
0
- BE BE437358D patent/BE437358A/xx unknown
-
1939
- 1939-01-14 US US250914A patent/US2255691A/en not_active Expired - Lifetime
- 1939-12-18 GB GB32445/39A patent/GB538947A/en not_active Expired
-
1940
- 1940-01-13 FR FR862876D patent/FR862876A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2255691A (en) | 1941-09-09 |
| GB538947A (en) | 1941-08-22 |
| FR862876A (fr) | 1941-03-18 |