BE523337A - - Google Patents
Info
- Publication number
- BE523337A BE523337A BE523337DA BE523337A BE 523337 A BE523337 A BE 523337A BE 523337D A BE523337D A BE 523337DA BE 523337 A BE523337 A BE 523337A
- Authority
- BE
- Belgium
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
- H03D3/18—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements
- H03D3/20—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements producing pulses whose amplitude or duration depends on phase difference
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measuring Phase Differences (AREA)
- Amplitude Modulation (AREA)
- Particle Accelerators (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL1441A DE860505C (de) | 1950-03-19 | 1950-03-19 | Schaltungsanordnung zur Demodulation frequenzmodulierter Schwingungen |
| US313635A US2774038A (en) | 1952-10-08 | 1952-10-08 | Phase discriminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE523337A true BE523337A (it) |
Family
ID=27207273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE523337D BE523337A (it) | 1950-03-19 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2683215A (it) |
| BE (1) | BE523337A (it) |
| CH (1) | CH341868A (it) |
| DE (2) | DE860505C (it) |
| FR (3) | FR1034074A (it) |
| GB (2) | GB689355A (it) |
| NL (2) | NL159884B (it) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2225348A (en) * | 1937-06-12 | 1940-12-17 | Gen Electric | Phase measuring instrument |
| US2282101A (en) * | 1939-12-22 | 1942-05-05 | Rca Corp | Detection of frequency modulated waves |
| US2441957A (en) * | 1942-11-13 | 1948-05-25 | Standard Telephones Cables Ltd | Demodulator for frequency modulated waves |
| US2448526A (en) * | 1946-04-10 | 1948-09-07 | Raytheon Mfg Co | Frequency discriminating circuits |
| US2484556A (en) * | 1946-11-12 | 1949-10-11 | Gen Electric | Demodulator for frequency modulated signals |
| NL150323B (nl) * | 1948-04-15 | Ideal Kk | Zelfopenende en -sluitende paraplu. | |
| NL278541A (it) * | 1961-05-19 |
-
0
- NL NL7001253.A patent/NL159883B/xx unknown
- BE BE523337D patent/BE523337A/xx unknown
- NL NL6610501.A patent/NL159884B/xx unknown
-
1950
- 1950-03-19 DE DEL1441A patent/DE860505C/de not_active Expired
-
1951
- 1951-03-16 FR FR1034074D patent/FR1034074A/fr not_active Expired
- 1951-03-16 FR FR1034075D patent/FR1034075A/fr not_active Expired
- 1951-03-16 GB GB6369/51A patent/GB689355A/en not_active Expired
- 1951-03-17 US US216119A patent/US2683215A/en not_active Expired - Lifetime
-
1953
- 1953-09-04 GB GB24538/53A patent/GB760015A/en not_active Expired
- 1953-10-07 DE DEI7777A patent/DE1019002B/de active Pending
- 1953-10-07 FR FR65437D patent/FR65437E/fr not_active Expired
- 1953-10-08 CH CH341868D patent/CH341868A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB760015A (en) | 1956-10-31 |
| NL159884B (nl) | |
| NL159883B (nl) | |
| DE1019002B (de) | 1957-11-07 |
| FR65437E (fr) | 1956-02-20 |
| GB689355A (en) | 1953-03-25 |
| CH341868A (fr) | 1959-10-31 |
| DE860505C (de) | 1952-12-22 |
| FR1034075A (fr) | 1953-07-17 |
| FR1034074A (fr) | 1953-07-17 |
| US2683215A (en) | 1954-07-06 |