NL109829C - - Google Patents

Info

Publication number
NL109829C
NL109829C NL109829DA NL109829C NL 109829 C NL109829 C NL 109829C NL 109829D A NL109829D A NL 109829DA NL 109829 C NL109829 C NL 109829C
Authority
NL
Netherlands
Application number
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.)
Publication of NL109829C publication Critical patent/NL109829C/xx

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 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
NL109829D 1956-07-24 NL109829C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT556921 1956-07-24

Publications (1)

Publication Number Publication Date
NL109829C true NL109829C (enrdf_load_stackoverflow)

Family

ID=11120284

Family Applications (2)

Application Number Title Priority Date Filing Date
NL219278D NL219278A (enrdf_load_stackoverflow) 1956-07-24
NL109829D NL109829C (enrdf_load_stackoverflow) 1956-07-24

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL219278D NL219278A (enrdf_load_stackoverflow) 1956-07-24

Country Status (7)

Country Link
US (1) US3009528A (enrdf_load_stackoverflow)
BE (1) BE559436A (enrdf_load_stackoverflow)
CH (1) CH355813A (enrdf_load_stackoverflow)
DE (1) DE1109736B (enrdf_load_stackoverflow)
FR (1) FR1183056A (enrdf_load_stackoverflow)
GB (1) GB854851A (enrdf_load_stackoverflow)
NL (2) NL109829C (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8301653A (nl) * 1983-05-10 1984-12-03 Philips Nv Elektro-akoestische omzetter met een luchtdoorlatend membraan.
DE3929266C1 (enrdf_load_stackoverflow) * 1989-09-02 1991-01-03 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
US5159139A (en) * 1990-06-13 1992-10-27 Evans Products, Inc. Drumhead with overtone suppression
DE102015106240A1 (de) * 2015-04-23 2016-10-27 Valeo Schalter Und Sensoren Gmbh Ultraschallsensor für ein Kraftfahrzeug mit einer Durchgangsöffnungen aufweisenden Membran, Verkleidungsanordnung sowie Kraftfahrzeug

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB248497A (en) * 1924-12-12 1926-03-11 John Sydney Robert James Improvements in and relating to diaphragms for sound boxes
DE463900C (de) * 1925-05-05 1928-08-04 Kallistophon G M B H Elektromagnetischer Lautsprecher mit einer als Faecher ausgebildeten Schallmembran
US2122587A (en) * 1925-07-20 1938-07-05 Rca Corp Acoustic device
GB256395A (en) * 1925-07-29 1926-08-12 Charles Mahe De Chenal De La B Improvements in, or relating to, loud-speakers, gramophones, and other sound-recording or reproducing apparatus
GB301638A (en) * 1927-11-24 1928-12-06 Sidney George Brown Improvements in or relating to loud speakers
DE557850C (de) * 1929-06-12 1932-09-01 Cantora Soc Tonwiedergabevorrichtung, Schalldose fuer Sprechmaschinen, elektrischer Lautsprecher o. dgl.
US1869178A (en) * 1930-08-15 1932-07-26 Bell Telephone Labor Inc Sound translating device
US1997790A (en) * 1931-03-07 1935-04-16 Stephen L Heidrich Acoustic diaphragm
DE593201C (de) * 1931-04-15 1934-02-23 I M K Syndicate Ltd Vorrichtung zur Bildzerlegung und Bildzusammensetzung beim Fernsehen
US2022060A (en) * 1934-08-29 1935-11-26 Bell Telephone Labor Inc Acoustic device
DE667495C (de) * 1935-07-09 1938-11-12 Telefunken Gmbh Verfahren zur Herabsetzung der Eigenschwingungszahl auf einen festgelegten Sollwert von nach dem Pappenguss- bzw. Schoepfverfahren hergestellten Lautsprechermembranen
NL90604C (enrdf_load_stackoverflow) * 1951-12-05
US2766839A (en) * 1953-03-16 1956-10-16 Research Corp Loudspeaker system
US2712360A (en) * 1954-05-06 1955-07-05 Reisz Eugene Membrane for sound reproducing devices
US2845135A (en) * 1955-09-26 1958-07-29 Arthur Blumenfeld Auxiliary wave propagating and directing attachment for loudspeaker diaphragms

Also Published As

Publication number Publication date
BE559436A (enrdf_load_stackoverflow)
FR1183056A (fr) 1959-07-02
CH355813A (fr) 1961-07-31
DE1109736B (de) 1961-06-29
US3009528A (en) 1961-11-21
NL219278A (enrdf_load_stackoverflow)
GB854851A (en) 1960-11-23

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