DE228775C - - Google Patents

Info

Publication number
DE228775C
DE228775C DENDAT228775D DE228775DA DE228775C DE 228775 C DE228775 C DE 228775C DE NDAT228775 D DENDAT228775 D DE NDAT228775D DE 228775D A DE228775D A DE 228775DA DE 228775 C DE228775 C DE 228775C
Authority
DE
Germany
Prior art keywords
membrane
wall
receiver
transmission
ship
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DENDAT228775D
Other languages
German (de)
English (en)
Publication of DE228775C publication Critical patent/DE228775C/de
Active legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S1/00Beacons 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
    • G01S1/72Beacons 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 ultrasonic, sonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
DENDAT228775D Active DE228775C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE278052T

Publications (1)

Publication Number Publication Date
DE228775C true DE228775C (enrdf_load_stackoverflow)

Family

ID=6028457

Family Applications (2)

Application Number Title Priority Date Filing Date
DENDAT228775D Active DE228775C (enrdf_load_stackoverflow)
DENDAT278052D Active DE278052C (enrdf_load_stackoverflow)

Family Applications After (1)

Application Number Title Priority Date Filing Date
DENDAT278052D Active DE278052C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (2) DE278052C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE278052C (enrdf_load_stackoverflow)

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