NL49642C - - Google Patents
Info
- Publication number
- NL49642C NL49642C NL49642DA NL49642C NL 49642 C NL49642 C NL 49642C NL 49642D A NL49642D A NL 49642DA NL 49642 C NL49642 C NL 49642C
- Authority
- NL
- Netherlands
Links
Classifications
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
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- 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)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE809012X | 1935-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL49642C true NL49642C (no) |
Family
ID=6723218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL49642D NL49642C (no) | 1935-08-07 |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR809012A (no) |
NL (1) | NL49642C (no) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2444388A (en) * | 1938-03-18 | 1948-06-29 | Hartford Nat Bank & Trust Co | Device for indicating direction and distance |
US2451141A (en) * | 1938-10-29 | 1948-10-12 | Rca Corp | Object detecting device |
DE748624C (de) * | 1939-08-02 | 1944-11-06 | Einrichtung zur Ermittlung von Leitungslaengen bzw. zur Fehlerortbestimmung bei Hochspannungsfreileitungen |
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0
- NL NL49642D patent/NL49642C/xx active
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1936
- 1936-08-05 FR FR809012D patent/FR809012A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR809012A (fr) | 1937-02-22 |