NL77693C - - Google Patents
Info
- Publication number
- NL77693C NL77693C NL77693DA NL77693C NL 77693 C NL77693 C NL 77693C NL 77693D A NL77693D A NL 77693DA NL 77693 C NL77693 C NL 77693C
- 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
- H04N5/57—Control of contrast or brightness
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28377A US2522967A (en) | 1948-05-21 | 1948-05-21 | Video amplifier feeding constant black level output to cathoderay tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL77693C true NL77693C (sv) |
Family
ID=21843115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL77693D NL77693C (sv) | 1948-05-21 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2522967A (sv) |
| FR (1) | FR985890A (sv) |
| GB (1) | GB665872A (sv) |
| NL (1) | NL77693C (sv) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2800528A (en) * | 1949-06-23 | 1957-07-23 | Du Mont Allen B Lab Inc | Video amplifier bridge circuit for minimizing supply voltage variations |
| US2718551A (en) * | 1950-03-28 | 1955-09-20 | Zenith Radio Corp | Frequency-compensated video amplifier output circuit with constant synchronizing signal output |
| US2688712A (en) * | 1950-10-28 | 1954-09-07 | Samuel A Procter | Television receiver |
| US2745037A (en) * | 1951-12-18 | 1956-05-08 | Rca Corp | Keying arrangement for single beam color tube |
| NL80731C (sv) * | 1952-02-21 | |||
| NL183119B (nl) * | 1952-11-26 | Norda Inc | Werkwijze voor de bereiding van vrijstromende deeltjesvormige, aromastoffen houdende mengsels. | |
| US2804571A (en) * | 1953-04-20 | 1957-08-27 | Tektronix Inc | Unblanking circuit for cathode ray tubes |
| US2752431A (en) * | 1953-10-22 | 1956-06-26 | Rca Corp | Amplifier gain control |
| US2802069A (en) * | 1954-09-07 | 1957-08-06 | Bell Telephone Labor Inc | Amplifier with high frequency compensation |
| US3320361A (en) * | 1961-11-27 | 1967-05-16 | Zenith Radio Corp | Television receiver including a crispener network comprising a series connected inductor and variable resistor |
| US3240875A (en) * | 1963-05-06 | 1966-03-15 | Rca Corp | Unitary control providing complementary contrast and brightness changes |
| DE1219515B (de) * | 1965-02-04 | 1966-06-23 | Telefunken Patent | Schaltungsanordnung zur Kontrastregelung in Fernsehempfaengern |
| DE1221665B (de) * | 1965-02-04 | 1966-07-28 | Telefunken Patent | Schaltungsanordnung zur Kontrastregelung in Fernsehempfaengern |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB496872A (en) * | 1937-03-06 | 1938-12-06 | Eric Lawrence Casling White | Improvements in or relating to thermionic valve amplifiers |
| US2226259A (en) * | 1937-08-25 | 1940-12-24 | Rca Corp | Amplifier |
| GB507239A (en) * | 1937-11-06 | 1939-06-06 | Alan Dower Blumlein | Improvements in or relating to the transmission or reception of electrical signals |
| GB505899A (en) * | 1937-11-13 | 1939-05-15 | Charles Leslie Faudell | Improvements in or relating to coupling means for thermionic valve circuits |
| GB510715A (en) * | 1938-02-04 | 1939-08-04 | Kolster Brandes Ltd | Improvements in television receivers |
| CH213810A (de) * | 1939-06-26 | 1941-03-15 | Lorenz C Ag | Anordnung zur Erzeugung der Anodenspannung von Braunschen Röhren, insbesondere für Fernsehgeräte. |
| US2358428A (en) * | 1940-09-07 | 1944-09-19 | Emi Ltd | Thermionic valve amplifier circuit arrangement |
| US2443864A (en) * | 1944-06-17 | 1948-06-22 | Du Mont Allen B Lab Inc | Voltage gain control device |
| US2430699A (en) * | 1944-12-28 | 1947-11-11 | Gen Electric | Amplifier gain control |
-
0
- NL NL77693D patent/NL77693C/xx active
-
1948
- 1948-05-21 US US28377A patent/US2522967A/en not_active Expired - Lifetime
-
1949
- 1949-04-25 GB GB10929/49A patent/GB665872A/en not_active Expired
- 1949-05-11 FR FR985890D patent/FR985890A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR985890A (fr) | 1951-07-24 |
| GB665872A (en) | 1952-01-30 |
| US2522967A (en) | 1950-09-19 |