BE474951A - - Google Patents
Info
- Publication number
- BE474951A BE474951A BE474951DA BE474951A BE 474951 A BE474951 A BE 474951A BE 474951D A BE474951D A BE 474951DA BE 474951 A BE474951 A BE 474951A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US506412A US2440264A (en) | 1943-10-15 | 1943-10-15 | Modulator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474951A true BE474951A (fr) |
Family
ID=24014470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474951D BE474951A (fr) | 1943-10-15 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2440264A (fr) |
| BE (1) | BE474951A (fr) |
| ES (1) | ES181843A1 (fr) |
| GB (1) | GB600253A (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2613347A (en) * | 1945-09-12 | 1952-10-07 | Todd William | Modulator, for radiosonde apparatus |
| US2633494A (en) * | 1946-03-23 | 1953-03-31 | Maynard D Mcfarlane | Facsimile transmitting system |
| US2689344A (en) * | 1951-05-15 | 1954-09-14 | Stanley R Rich | Pulse modulated speech transmission system |
| US2807781A (en) * | 1953-01-08 | 1957-09-24 | Servo Corp Of America | Direct-reading frequency meter |
| US2964240A (en) * | 1953-08-28 | 1960-12-13 | Electro Mechanical Res Inc | Plotter |
| US2765211A (en) * | 1953-12-09 | 1956-10-02 | Applied Science Corp Of Prince | Grid printer |
| US2985845A (en) * | 1957-04-05 | 1961-05-23 | Westinghouse Canada Ltd | Crystal oscillator keying circuit |
| US4597068A (en) * | 1983-04-21 | 1986-06-24 | At&T Bell Laboratories | Acoustic ranging system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1566245A (en) * | 1921-09-02 | 1925-12-15 | Westinghouse Electric & Mfg Co | Radiotelephone system |
| GB187457A (en) * | 1921-10-28 | 1922-10-26 | Benjamin Henry Noel Hans Hamil | Improvements in or relating to thermionic valve transmitters for wireless signalling |
| US1695042A (en) * | 1923-08-15 | 1928-12-11 | Western Electric Co | High-efficiency discharge-device system |
| DE462849C (de) * | 1925-12-14 | 1928-07-18 | Lorenz Akt Ges C | Einrichtung zur Steuerung von fremderregten Roehrensendern |
| NL42088C (fr) * | 1934-12-17 | |||
| US2255727A (en) * | 1939-02-23 | 1941-09-09 | W E Lehnert | Signal generator output equalizer |
-
0
- BE BE474951D patent/BE474951A/xx unknown
-
1943
- 1943-10-15 US US506412A patent/US2440264A/en not_active Expired - Lifetime
-
1944
- 1944-10-13 GB GB19853/44A patent/GB600253A/en not_active Expired
-
1948
- 1948-01-24 ES ES0181843A patent/ES181843A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB600253A (en) | 1948-04-05 |
| US2440264A (en) | 1948-04-27 |
| ES181843A1 (es) | 1948-03-01 |