GB144673A - Improvements in sound producers and receivers - Google Patents

Improvements in sound producers and receivers

Info

Publication number
GB144673A
GB144673A GB15601/20A GB1560120A GB144673A GB 144673 A GB144673 A GB 144673A GB 15601/20 A GB15601/20 A GB 15601/20A GB 1560120 A GB1560120 A GB 1560120A GB 144673 A GB144673 A GB 144673A
Authority
GB
United Kingdom
Prior art keywords
points
vibrations
diaphragm
respect
oscillating
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.)
Expired
Application number
GB15601/20A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Signal GmbH
Original Assignee
Signal GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Signal GmbH filed Critical Signal GmbH
Publication of GB144673A publication Critical patent/GB144673A/en
Expired legal-status Critical Current

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
    • G01S1/72—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 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 Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
GB15601/20A 1916-03-09 1920-06-09 Improvements in sound producers and receivers Expired GB144673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE144673X 1916-03-09

Publications (1)

Publication Number Publication Date
GB144673A true GB144673A (en) 1921-09-09

Family

ID=5670330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15601/20A Expired GB144673A (en) 1916-03-09 1920-06-09 Improvements in sound producers and receivers

Country Status (2)

Country Link
DE (1) DE299130C (enExample)
GB (1) GB144673A (enExample)

Also Published As

Publication number Publication date
DE299130C (enExample)

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