NL80441C - - Google Patents
Info
- Publication number
- NL80441C NL80441C NL80441DA NL80441C NL 80441 C NL80441 C NL 80441C NL 80441D A NL80441D A NL 80441DA NL 80441 C NL80441 C NL 80441C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- G01S1/08—Systems for determining direction or position line
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
-
- 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
- G01S1/68—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information
- G01S1/685—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information using pulse modulation, e.g. pulse frequency modulation
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
- H03K5/02—Shaping pulses by amplifying
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Nonlinear Science (AREA)
- Radar Systems Or Details Thereof (AREA)
- Amplitude Modulation (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US682538A US2658993A (en) | 1946-07-10 | 1946-07-10 | Loran transmitter |
Publications (1)
Publication Number | Publication Date |
---|---|
NL80441C true NL80441C (de) |
Family
ID=24740130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL80441D NL80441C (de) | 1946-07-10 |
Country Status (5)
Country | Link |
---|---|
US (1) | US2658993A (de) |
BE (1) | BE474332A (de) |
ES (1) | ES178543A1 (de) |
FR (1) | FR947820A (de) |
NL (1) | NL80441C (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2920323A (en) * | 1953-09-16 | 1960-01-05 | Philip M Dunson | Broad-band impedance matching |
US2928001A (en) * | 1955-12-15 | 1960-03-08 | Joseph F Mcclean | Null circuits |
US3774112A (en) * | 1970-04-21 | 1973-11-20 | Health Systems Inc | Megatrol-high energy transmitter switch |
US3928805A (en) * | 1973-09-20 | 1975-12-23 | Marconi Co Canada | Detectability of emergency beacon |
US3889263A (en) * | 1973-11-15 | 1975-06-10 | Megapulse Inc | Radio-frequency pulse generation system and method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2207796A (en) * | 1937-04-24 | 1940-07-16 | Rca Corp | Band pass amplifier |
NL88393C (de) * | 1937-06-18 | |||
US2401807A (en) * | 1939-06-16 | 1946-06-11 | Rca Corp | Apparatus for and method of pulse keying |
US2280707A (en) * | 1940-05-31 | 1942-04-21 | Rca Corp | Apparatus for and method of frequency modulating |
US2487768A (en) * | 1941-08-22 | 1949-11-08 | Gen Electric | High-intensity pulsing circuits |
US2321291A (en) * | 1941-10-31 | 1943-06-08 | Rca Corp | Band pass amplifier |
BE478855A (de) * | 1942-12-09 | |||
US2459809A (en) * | 1943-01-14 | 1949-01-25 | John E Gorham | High-power pulse generator |
US2467308A (en) * | 1945-03-17 | 1949-04-12 | Rca Corp | Interference reducing radio pulse receiver |
-
0
- BE BE474332D patent/BE474332A/xx unknown
- NL NL80441D patent/NL80441C/xx active
-
1946
- 1946-07-10 US US682538A patent/US2658993A/en not_active Expired - Lifetime
-
1947
- 1947-06-11 FR FR947820D patent/FR947820A/fr not_active Expired
- 1947-06-19 ES ES0178543A patent/ES178543A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2658993A (en) | 1953-11-10 |
BE474332A (de) | |
ES178543A1 (es) | 1947-08-16 |
FR947820A (fr) | 1949-07-13 |