[go: up one dir, main page]

GB492098A - Improvements in or relating to sound radiating systems - Google Patents

Improvements in or relating to sound radiating systems

Info

Publication number
GB492098A
GB492098A GB7063/37A GB706337A GB492098A GB 492098 A GB492098 A GB 492098A GB 7063/37 A GB7063/37 A GB 7063/37A GB 706337 A GB706337 A GB 706337A GB 492098 A GB492098 A GB 492098A
Authority
GB
United Kingdom
Prior art keywords
speakers
loud
diaphragms
sound
march
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
GB7063/37A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB492098A publication Critical patent/GB492098A/en
Expired 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

492,098. Sound-reproducing systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. March 10, 1937, No. 7063. Convention date, March 10, 1936. [Class 40 (iv)] A sound-radiating system comprises a number of loud-speakers having direct-radiating diaphragms and arranged substantially in ring formation. As shown in Figs. 1a., 1c., the individual loud-speakers 4 are mounted with their diaphragms 5 opposite holes 3 in a frusto conical iron baffle 2 carried by a pedestal stand 1 and provided with top and bottom walls 6, 7 which may be apertured. The loud-speakers may be mounted so that their relative spacing can be varied and so that their axes can be adjusted upwardly or downwardly. In a modified arrangement, Figs. 2a, 2b (not shown), the loud-speakers are arranged in two groups, one above the other, the loud-speakers of one group being positioned circumferentially between those of the other group. More than two groups of loud-speakers may be employed and the baffle or baffles may be polygonal. The diameter of the diaphragms is preferably small compared with the wave-length of the middle frequency of the frequency band to be radiated and the power supplied to each loudspeaker is preferably of the order of 2 watts. Specification 479,549 is referred to.
GB7063/37A 1936-03-10 1937-03-10 Improvements in or relating to sound radiating systems Expired GB492098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE492098X 1936-03-10

Publications (1)

Publication Number Publication Date
GB492098A true GB492098A (en) 1938-09-12

Family

ID=6544360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7063/37A Expired GB492098A (en) 1936-03-10 1937-03-10 Improvements in or relating to sound radiating systems

Country Status (1)

Country Link
GB (1) GB492098A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544742A (en) * 1946-12-31 1951-03-13 Vibra Sonic Inc Cubic loud-speaker cabinet
US2602860A (en) * 1947-11-18 1952-07-08 Doubt Leon Stewart Loud-speaker structure
US2888090A (en) * 1949-10-14 1959-05-26 Telefunken Gmbh Loudspeaker arrangement
DE975222C (en) * 1949-04-17 1961-10-05 Siemens Ag Loudspeaker arrangement with directional effect
WO1984000434A1 (en) * 1982-07-12 1984-02-02 Federal Signal Corp Electronic outdoor warning siren
WO2016054100A1 (en) * 2014-09-30 2016-04-07 Nunntawi Dynamics Llc Loudspeaker with reduced audio coloration caused by reflections from a surface
AU2017202861B2 (en) * 2014-09-30 2018-11-08 Apple Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
US10257608B2 (en) 2016-09-23 2019-04-09 Apple Inc. Subwoofer with multi-lobe magnet
US10631071B2 (en) 2016-09-23 2020-04-21 Apple Inc. Cantilevered foot for electronic device
US11256338B2 (en) 2014-09-30 2022-02-22 Apple Inc. Voice-controlled electronic device

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544742A (en) * 1946-12-31 1951-03-13 Vibra Sonic Inc Cubic loud-speaker cabinet
US2602860A (en) * 1947-11-18 1952-07-08 Doubt Leon Stewart Loud-speaker structure
DE975222C (en) * 1949-04-17 1961-10-05 Siemens Ag Loudspeaker arrangement with directional effect
US2888090A (en) * 1949-10-14 1959-05-26 Telefunken Gmbh Loudspeaker arrangement
WO1984000434A1 (en) * 1982-07-12 1984-02-02 Federal Signal Corp Electronic outdoor warning siren
CN107113495B (en) * 2014-09-30 2020-03-24 苹果公司 Loudspeaker with reduced audio coloration caused by reflections from surfaces
US11256338B2 (en) 2014-09-30 2022-02-22 Apple Inc. Voice-controlled electronic device
US10015584B2 (en) * 2014-09-30 2018-07-03 Apple Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
AU2017202861B2 (en) * 2014-09-30 2018-11-08 Apple Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
US12192698B2 (en) 2014-09-30 2025-01-07 Apple Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
US10524044B2 (en) 2014-09-30 2019-12-31 Apple Inc. Airflow exit geometry
CN107113495A (en) * 2014-09-30 2017-08-29 苹果公司 The loudspeaker by the audio dyeing caused by the reflection on surface with reduction
WO2016054100A1 (en) * 2014-09-30 2016-04-07 Nunntawi Dynamics Llc Loudspeaker with reduced audio coloration caused by reflections from a surface
US10609473B2 (en) 2014-09-30 2020-03-31 Apple Inc. Audio driver and power supply unit architecture
US11818535B2 (en) 2014-09-30 2023-11-14 Apple, Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
US10652650B2 (en) 2014-09-30 2020-05-12 Apple Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
USRE49437E1 (en) 2014-09-30 2023-02-28 Apple Inc. Audio driver and power supply unit architecture
US11290805B2 (en) 2014-09-30 2022-03-29 Apple Inc. Loudspeaker with reduced audio coloration caused by reflections from a surface
US10587950B2 (en) 2016-09-23 2020-03-10 Apple Inc. Speaker back volume extending past a speaker diaphragm
US10911863B2 (en) 2016-09-23 2021-02-02 Apple Inc. Illuminated user interface architecture
US10834497B2 (en) 2016-09-23 2020-11-10 Apple Inc. User interface cooling using audio component
US10771890B2 (en) 2016-09-23 2020-09-08 Apple Inc. Annular support structure
US11693487B2 (en) 2016-09-23 2023-07-04 Apple Inc. Voice-controlled electronic device
US11693488B2 (en) 2016-09-23 2023-07-04 Apple Inc. Voice-controlled electronic device
US10631071B2 (en) 2016-09-23 2020-04-21 Apple Inc. Cantilevered foot for electronic device
US12147610B2 (en) 2016-09-23 2024-11-19 Apple Inc. Voice-controlled electronic device
US10257608B2 (en) 2016-09-23 2019-04-09 Apple Inc. Subwoofer with multi-lobe magnet

Similar Documents

Publication Publication Date Title
GB492098A (en) Improvements in or relating to sound radiating systems
GB622401A (en) Improvements in or relating to stereophonic reproduction apparatus
GB309162A (en) Improvements in or relating to sound radiating devices
GB1521304A (en) Hi-fi loudspeaker arrangement
GB998884A (en) Improvements in or relating to loudspeaker systems
GB486038A (en) Improvements in or relating to sound radiating systems
GB433211A (en) Improvements in or relating to electroacoustic translating devices
GB529152A (en) Improvements in or relating to radio aerial arrangements
GB744167A (en) Improvements relating to loudspeakers
CN106131758A (en) A kind of loudspeaker assembly and audio amplifier
GB486095A (en) Improvements in or relating to sound radiating systems
GB445765A (en) Improved method and device for the reproduction of sound
GB320654A (en) Improvements in loud speakers for wireless apparatus or the like
GB439009A (en) Improvements in or relating to public address systems
GB659818A (en) Improvements in or relating to loudspeaker units
GB441061A (en) Improvements in or relating to loudspeakers and the like
US2194664A (en) Sound reproducing apparatus
GB479549A (en) Improvements in loud speaker arrangements for public address systems
GB513010A (en) Improvements in or relating to loud-speakers
US1934693A (en) Sound reproducing apparatus
GB928377A (en) Improvements in or relating to sound reproducing devices comprising the combination of a conical loudspeaker and a reflector
GB764823A (en) Improvements in or relating to sound reproducing apparatus
GB615481A (en) Improvements in or relating to apparatus for stereophonic sound reproduction
GB359081A (en) Improvements in apparatus for converting electrical signals into sound, such as loudspeakers
GB311044A (en) Improvements in diaphragms for gramophones, telephonic loud speakers and the like