BE486285A - - Google Patents
Info
- Publication number
- BE486285A BE486285A BE486285DA BE486285A BE 486285 A BE486285 A BE 486285A BE 486285D A BE486285D A BE 486285DA BE 486285 A BE486285 A BE 486285A
- Authority
- BE
- Belgium
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
- H04N5/53—Keyed 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
- H04N5/18—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)
- Television Receiver Circuits (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US791475A US2618703A (en) | 1947-12-13 | 1947-12-13 | Keyed direct current reinsertion circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE486285A true BE486285A (fi) |
Family
ID=25153850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE486285D BE486285A (fi) | 1947-12-13 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2618703A (fi) |
| BE (1) | BE486285A (fi) |
| CH (1) | CH270415A (fi) |
| FR (1) | FR976427A (fi) |
| GB (1) | GB653788A (fi) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2744155A (en) * | 1950-05-01 | 1956-05-01 | Rca Corp | Color or monochrome television receiving system |
| GB715331A (en) * | 1951-08-07 | 1954-09-15 | Marconi Wireless Telegraph Co | Improvements in or relating to television receivers |
| DE960825C (de) * | 1952-03-29 | 1957-03-28 | Interessengemeinschaft Fuer Ru | Zweidiodenschaltung zur Gewinnung eines negativ gerichteten Videogemisches und zur Schwarzsteuerung in Fernsehgeraeten fuer Negativmodulation |
| DE1029429B (de) * | 1953-03-13 | 1958-05-08 | L Outil R B V Et De La Radio I | Schaltungsanordnung zur Erzeugung einer von fern einstellbaren Gittergleichspannung fuer das Strahlerzeugersystem einer ueber Kabel gespeisten Bildaufnahmeroehre |
| DE1016749B (de) * | 1953-09-15 | 1957-10-03 | Interessengemeinschaft Fuer Ru | Schaltung zur Erzeugung einer getasteten Schwundregelspannung in Fernsehempfaengern |
| DE1013315B (de) * | 1953-09-25 | 1957-08-08 | Telefunken Gmbh | Schaltung zur Schwundregelung bei Fernsehempfaengern |
| DE956588C (de) * | 1953-10-16 | 1957-01-24 | Telefunken Gmbh | Schaltung zur Konstanthaltung des Schwarzwertes bei Fernsehempfaengern |
| NL191748A (fi) * | 1953-10-27 | |||
| NL193857A (fi) * | 1954-01-08 | |||
| BE556420A (fi) * | 1956-04-06 | |||
| US3927255A (en) * | 1974-05-01 | 1975-12-16 | Rca Corp | Black level clamping circuit for a television signal processor |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2241553A (en) * | 1941-05-13 | Television system | ||
| US2252746A (en) * | 1933-04-13 | 1941-08-19 | Emi Ltd | Television device |
| BE412678A (fi) * | 1934-12-10 | |||
| DE878512C (de) * | 1935-03-20 | 1953-04-16 | Emi Ltd | Verfahren zur Fadingregelung oder zur Wiedereinfuehrung der Gleich-stromkomponente in elektrische Signale, insbesondere beim Fernsehen |
| GB489275A (en) * | 1935-11-02 | 1938-07-22 | Telefunken Gmbh | Improvements in or relating to circuits for television receivers |
| GB507239A (en) * | 1937-11-06 | 1939-06-06 | Alan Dower Blumlein | Improvements in or relating to the transmission or reception of electrical signals |
| FR845897A (fr) * | 1937-11-11 | 1939-09-04 | Fernseh Ag | Réglage automatique de l'amplitude |
| GB512109A (en) * | 1937-12-24 | 1939-08-29 | Alan Dower Blumlein | Improvements in or relating to television or other signal transmission systems |
| GB510715A (en) * | 1938-02-04 | 1939-08-04 | Kolster Brandes Ltd | Improvements in television receivers |
| US2240534A (en) * | 1938-10-13 | 1941-05-06 | Hazeltine Corp | Television receiving system |
| US2259538A (en) * | 1938-12-06 | 1941-10-21 | Hazeltine Corp | Television receiver with automatic shade-level control |
| US2296393A (en) * | 1940-03-16 | 1942-09-22 | Rca Corp | Noise limiter |
| FR959967A (fi) * | 1940-10-26 | 1950-04-07 | ||
| US2543037A (en) * | 1946-01-07 | 1951-02-27 | Farnsworth Res Corp | Television receiver |
| US2525106A (en) * | 1946-11-21 | 1950-10-10 | Rca Corp | Electronic keyer for direct current restoration |
-
0
- BE BE486285D patent/BE486285A/xx unknown
-
1947
- 1947-12-13 US US791475A patent/US2618703A/en not_active Expired - Lifetime
-
1948
- 1948-10-25 GB GB27712/48A patent/GB653788A/en not_active Expired
- 1948-12-06 CH CH270415D patent/CH270415A/de unknown
- 1948-12-11 FR FR976427D patent/FR976427A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR976427A (fr) | 1951-03-19 |
| US2618703A (en) | 1952-11-18 |
| CH270415A (de) | 1950-08-31 |
| GB653788A (en) | 1951-05-23 |