NL27771C - - Google Patents
Info
- Publication number
- NL27771C NL27771C NL27771DA NL27771C NL 27771 C NL27771 C NL 27771C NL 27771D A NL27771D A NL 27771DA NL 27771 C NL27771 C NL 27771C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
- H03D3/12—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of discharge tubes having more than two electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Transmitters (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US216873A US1794932A (en) | 1927-09-01 | 1927-09-01 | Frequency modulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL27771C true NL27771C (en) |
Family
ID=22808816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL27771D NL27771C (en) | 1927-09-01 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1794932A (en) |
| DE (1) | DE515621C (en) |
| GB (1) | GB296678A (en) |
| NL (1) | NL27771C (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB497111A (en) * | 1936-11-27 | 1938-12-13 | Marconi Wireless Telegraph Co | Improvements in or relating to frequency modulated carrier wave systems |
| DE758225C (en) * | 1937-04-13 | 1953-04-16 | Rca Corp | Circuit for stabilizing the mean carrier frequency of a frequency or phase modulated high frequency transmitter |
| DE753551C (en) * | 1939-04-15 | 1953-03-09 | Fernseh Gmbh | Method and device for receiving a signal sequence transmitted by means of frequency-modulated waves |
| US2417191A (en) * | 1942-01-13 | 1947-03-11 | Southwest Airmotive Company | Airplane antenna automatic tuning system |
| US2494677A (en) * | 1942-11-13 | 1950-01-17 | Hartford Nat Bank & Trust Co | Radio receiver with condenser tuning |
| US2415469A (en) * | 1943-02-25 | 1947-02-11 | Purdue Research Foundation | Electrical control apparatus |
| US2428264A (en) * | 1943-04-27 | 1947-09-30 | Rca Corp | Frequency discriminator circuits |
| US2519668A (en) * | 1944-09-04 | 1950-08-22 | Sidney S Konigsberg | Indicating system |
| US2498340A (en) * | 1945-01-22 | 1950-02-21 | Rca Corp | Antenna tuning control system |
| US2425923A (en) * | 1945-03-07 | 1947-08-19 | Rca Corp | Frequency divider and discriminator circuit |
| US2545297A (en) * | 1946-03-13 | 1951-03-13 | Mittelmann Eugene | Oscillation frequency control |
| US2747146A (en) * | 1952-02-12 | 1956-05-22 | Cook Electric Co | Frequency enseitive control apparatus |
| US2820109A (en) * | 1952-03-22 | 1958-01-14 | Cgs Lab Inc | Magnetic amplifier |
| US2812510A (en) * | 1952-06-25 | 1957-11-05 | Elmer H Schulz | Frequency modulation system |
| US2830241A (en) * | 1954-07-21 | 1958-04-08 | Turck Jean | Telecontrol device |
| US2929876A (en) * | 1955-06-10 | 1960-03-22 | Metallotecnica Soc | Automatic frequency control device of very high stability and highly sensitive for radio receivers |
| US2915741A (en) * | 1955-11-16 | 1959-12-01 | Tele Dynamics Inc | Automatic compensation in a telemetric system |
| US2901614A (en) * | 1957-03-14 | 1959-08-25 | Collins Radio Co | Coarse frequency discriminator |
| US3074021A (en) * | 1958-04-03 | 1963-01-15 | Gen Electronic Lab Inc | Crystal discriminator |
| US2996681A (en) * | 1960-01-07 | 1961-08-15 | Admiral Corp | Transistorized peak detector |
| US3241077A (en) * | 1961-07-06 | 1966-03-15 | North American Aviation Inc | Self-adaptive control system eliminating variable unwanted component |
| US3365147A (en) * | 1965-04-12 | 1968-01-23 | Honeywell Inc | Control apparatus for steerable craft |
-
0
- NL NL27771D patent/NL27771C/xx active
-
1927
- 1927-09-01 US US216873A patent/US1794932A/en not_active Expired - Lifetime
-
1928
- 1928-08-05 DE DER75333D patent/DE515621C/en not_active Expired
- 1928-09-03 GB GB25277/28A patent/GB296678A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB296678A (en) | 1929-02-07 |
| DE515621C (en) | 1931-01-09 |
| US1794932A (en) | 1931-03-03 |