DE1030876B - Glockenfoermiger, aus Metallguss bestehender Lautsprecher-Schalltrichter - Google Patents

Glockenfoermiger, aus Metallguss bestehender Lautsprecher-Schalltrichter

Info

Publication number
DE1030876B
DE1030876B DEA17924A DEA0017924A DE1030876B DE 1030876 B DE1030876 B DE 1030876B DE A17924 A DEA17924 A DE A17924A DE A0017924 A DEA0017924 A DE A0017924A DE 1030876 B DE1030876 B DE 1030876B
Authority
DE
Germany
Prior art keywords
funnel
loudspeaker
bell
cast metal
exponential
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.)
Pending
Application number
DEA17924A
Other languages
German (de)
English (en)
Inventor
Dr Walter Grandjot
Erich Osterloh
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.)
Atlas Werke AG
Original Assignee
Atlas Werke 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
Application filed by Atlas Werke AG filed Critical Atlas Werke AG
Priority to DEA17924A priority Critical patent/DE1030876B/de
Publication of DE1030876B publication Critical patent/DE1030876B/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/762—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with special measures concerning the radiation pattern, e.g. S.L.S.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
DEA17924A 1952-05-09 1953-04-30 Glockenfoermiger, aus Metallguss bestehender Lautsprecher-Schalltrichter Pending DE1030876B (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA17924A DE1030876B (de) 1952-05-09 1953-04-30 Glockenfoermiger, aus Metallguss bestehender Lautsprecher-Schalltrichter

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB11779/52A GB734588A (en) 1952-05-09 1952-05-09 Improvements in or relating to secondary radar systems
GB1178052 1952-05-09
DEA17924A DE1030876B (de) 1952-05-09 1953-04-30 Glockenfoermiger, aus Metallguss bestehender Lautsprecher-Schalltrichter

Publications (1)

Publication Number Publication Date
DE1030876B true DE1030876B (de) 1958-05-29

Family

ID=26248514

Family Applications (2)

Application Number Title Priority Date Filing Date
DEA17924A Pending DE1030876B (de) 1952-05-09 1953-04-30 Glockenfoermiger, aus Metallguss bestehender Lautsprecher-Schalltrichter
DEC7554A Pending DE1030896B (de) 1952-05-09 1953-05-09 Antwortgebende Relaisstation fuer Radaranlagen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DEC7554A Pending DE1030896B (de) 1952-05-09 1953-05-09 Antwortgebende Relaisstation fuer Radaranlagen

Country Status (5)

Country Link
US (1) US2824301A (enExample)
DE (2) DE1030876B (enExample)
FR (1) FR1080045A (enExample)
GB (1) GB734588A (enExample)
NL (1) NL6710682A (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL113618C (enExample) * 1956-05-25
NL130962C (enExample) * 1957-11-12
DE1153427B (de) 1958-06-25 1963-08-29 Cossor Ltd A C Radarsystem mit antwortgebender Relaisstation
NL253570A (enExample) * 1959-07-10
NL256422A (enExample) * 1959-10-01
US3122737A (en) * 1960-05-17 1964-02-25 Setrin Morton Apparatus for suppressing side-lobe interrogations in transponder beacon systems
BE622184A (enExample) * 1961-09-06
DE1237188B (de) * 1964-08-12 1967-03-23 Siemens Ag Mit veraenderbarer Reichweite arbeitendes Sekundaer-Radarsystem
US3341846A (en) * 1964-11-12 1967-09-12 Bendix Corp Transponder system
US4037227A (en) * 1966-04-11 1977-07-19 The United States Of America As Represented By The Secretary Of The Air Force Controlled deception jamming device
GB1239866A (en) * 1969-03-04 1971-07-21 Cossor Ltd A C Secondary radar system
US4137531A (en) * 1976-05-13 1979-01-30 Plessey Handel Und Investments Ag Radar selective interrogation system
SE419002B (sv) * 1979-12-11 1981-07-06 Ericsson Telefon Ab L M Forfarande for att i en radarfyr forhindra att fyren svarar pa mottagna radarpulser fran en sendarantens sidolober samt anordning for utforande av forfarandet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2194070A (en) * 1936-09-02 1940-03-19 Associated Electric Lab Inc Sound translating device
GB566398A (en) * 1943-06-21 1944-12-28 Guy R Fountain Ltd Improvements in or relating to loud speakers and loud speaker horns
DE873925C (de) * 1950-05-20 1953-04-20 Philips Nv Verstellbare Befestigung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444426A (en) * 1943-10-26 1948-07-06 Standard Telephones Cables Ltd Repeater control system
US2624873A (en) * 1945-04-18 1953-01-06 Bess Leon Object locating identification system
US2606282A (en) * 1945-07-09 1952-08-05 Harry J Lipkin Pulse transponder
GB616364A (en) * 1947-06-20 1949-01-20 Robert Hanbury Brown Improvements in radio beacon and like equipment
US2594916A (en) * 1947-11-26 1952-04-29 Rca Corp Automatic gain control circuits

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2194070A (en) * 1936-09-02 1940-03-19 Associated Electric Lab Inc Sound translating device
GB566398A (en) * 1943-06-21 1944-12-28 Guy R Fountain Ltd Improvements in or relating to loud speakers and loud speaker horns
DE873925C (de) * 1950-05-20 1953-04-20 Philips Nv Verstellbare Befestigung

Also Published As

Publication number Publication date
US2824301A (en) 1958-02-18
FR1080045A (fr) 1954-12-06
GB734588A (en) 1955-08-03
NL6710682A (enExample) 1967-10-25
DE1030896B (de) 1958-05-29

Similar Documents

Publication Publication Date Title
DE1030876B (de) Glockenfoermiger, aus Metallguss bestehender Lautsprecher-Schalltrichter
DE3046416A1 (de) Fernkonferenz-mikrophonanordnungen
DE2343818C3 (de) Kopfhörer
DE2614729B2 (de) Kopfhörermuschel
DE624049C (de) In ein Gehaeuse eingebauter Flaechenlautsprecher
DE2332722A1 (de) Membran fuer elektroakustische wandler und verfahren sowie vorrichtung zu deren herstellung
DE2929802A1 (de) Exponentialtrichter fuer trichterlautsprecher
DE863085C (de) Mit einem Lautsprecher ausgeruestete Tonfuehrung
DE533263C (de) Trichterloser Lautsprecher
DE844169C (de) Lautsprecheranordnung mit Richtwirkung
DE538935C (de) Hoervorrichtung
AT108554B (de) Radio-Lautsprecher.
DE437216C (de) Schallverstaerker, Schalltrichter fuer Sprechmaschinen, Telephonlautsprecher o. dgl.
DE924807C (de) Einrichtung zur Sprachuebertragung aus geraeuscherfuellten Raeumen
DE2827390C2 (de) Lautsprechertrichter
Diestel Zur Bestimmung der Druckempfindlichkeit von Mikrophonen
AT121194B (de) Mikrotelephonsprechmuschel.
DE648825C (de) Signalgeraet mit Membran
DE19526810A1 (de) Anordnung für Höreinrichtungen in Kommunikations-Endgeräten
DE575982C (de) Schalltrichter
DE2110466C (de) Hochtonlautsprecher
DE641678C (de) Vorrichtung zum Schutz der Membran von akustischen Geraeten
CH653198A5 (de) Dosenfoermige hoererkapsel fuer fernsprech-handapparate, mit einem elektrodynamischen wandler.
DE573874C (de) Anordnung fuer Mikrophone
DE686314C (de) Kohlekoernermikrophon