NL81368C - - Google Patents
Info
- Publication number
- NL81368C NL81368C NL137633A NL137633A NL81368C NL 81368 C NL81368 C NL 81368C NL 137633 A NL137633 A NL 137633A NL 137633 A NL137633 A NL 137633A NL 81368 C NL81368 C NL 81368C
- Authority
- NL
- Netherlands
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
- H04N5/52—Automatic gain control
-
- 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
- H04N5/16—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)
- Control Of Amplification And Gain Control (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB30210/38A GB521744A (en) | 1938-10-19 | 1938-10-19 | Improvements in or relating to electric signal transmission systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL81368C true NL81368C (xx) | 1956-05-15 |
Family
ID=10304024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL137633A NL81368C (xx) | 1938-10-19 | 1947-12-29 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2284085A (xx) |
| DE (1) | DE836045C (xx) |
| FR (1) | FR862398A (xx) |
| GB (1) | GB521744A (xx) |
| NL (1) | NL81368C (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT454467A (xx) * | 1944-12-26 | |||
| US2550178A (en) * | 1946-11-21 | 1951-04-24 | Rca Corp | Direct current reinsertion circuit for television systems |
| NL82308C (xx) * | 1949-06-04 | |||
| US2829197A (en) * | 1951-02-16 | 1958-04-01 | Avco Mfg Corp | Noise limiter for television receiver |
| US2907822A (en) * | 1952-04-17 | 1959-10-06 | Marconi Wireless Telegraph Co | Interference reduction in television and other communication systems |
-
1938
- 1938-10-19 GB GB30210/38A patent/GB521744A/en not_active Expired
-
1939
- 1939-10-26 US US301324A patent/US2284085A/en not_active Expired - Lifetime
- 1939-12-18 FR FR862398D patent/FR862398A/fr not_active Expired
-
1947
- 1947-12-29 NL NL137633A patent/NL81368C/xx active
-
1950
- 1950-09-21 DE DEE2160A patent/DE836045C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2284085A (en) | 1942-05-26 |
| DE836045C (de) | 1952-04-07 |
| GB521744A (en) | 1940-05-30 |
| FR862398A (fr) | 1941-03-12 |