DE669549C - Horchgeraet mit paraboloidisch ausgebildetem Schallsammlungssystem - Google Patents

Horchgeraet mit paraboloidisch ausgebildetem Schallsammlungssystem

Info

Publication number
DE669549C
DE669549C DEA72035D DEA0072035D DE669549C DE 669549 C DE669549 C DE 669549C DE A72035 D DEA72035 D DE A72035D DE A0072035 D DEA0072035 D DE A0072035D DE 669549 C DE669549 C DE 669549C
Authority
DE
Germany
Prior art keywords
sound
paraboloid
focal point
listening device
passage opening
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
DEA72035D
Other languages
German (de)
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.)
AEG AG
Original Assignee
AEG AG
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
Priority to NL40514D priority Critical patent/NL40514C/xx
Application filed by AEG AG filed Critical AEG AG
Priority to DEA72035D priority patent/DE669549C/de
Application granted granted Critical
Publication of DE669549C publication Critical patent/DE669549C/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
    • 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)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
DEA72035D 1933-12-13 1933-12-13 Horchgeraet mit paraboloidisch ausgebildetem Schallsammlungssystem Expired DE669549C (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL40514D NL40514C (enrdf_load_stackoverflow) 1933-12-13
DEA72035D DE669549C (de) 1933-12-13 1933-12-13 Horchgeraet mit paraboloidisch ausgebildetem Schallsammlungssystem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA72035D DE669549C (de) 1933-12-13 1933-12-13 Horchgeraet mit paraboloidisch ausgebildetem Schallsammlungssystem

Publications (1)

Publication Number Publication Date
DE669549C true DE669549C (de) 1938-12-29

Family

ID=6945445

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA72035D Expired DE669549C (de) 1933-12-13 1933-12-13 Horchgeraet mit paraboloidisch ausgebildetem Schallsammlungssystem

Country Status (2)

Country Link
DE (1) DE669549C (enrdf_load_stackoverflow)
NL (1) NL40514C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977511C (de) * 1954-12-25 1966-11-03 Telefunken Patent Richtantenne fuer sehr kurze elektromagnetische Wellen
DE3341284A1 (de) * 1982-11-17 1984-05-17 Mitsubishi Denki K.K., Tokio/Tokyo Antennenanlage mit zwei reflektoren

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977511C (de) * 1954-12-25 1966-11-03 Telefunken Patent Richtantenne fuer sehr kurze elektromagnetische Wellen
DE3341284A1 (de) * 1982-11-17 1984-05-17 Mitsubishi Denki K.K., Tokio/Tokyo Antennenanlage mit zwei reflektoren

Also Published As

Publication number Publication date
NL40514C (enrdf_load_stackoverflow)

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