EP3896994A1 - Écouteurs - Google Patents

Écouteurs Download PDF

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Publication number
EP3896994A1
EP3896994A1 EP20169938.6A EP20169938A EP3896994A1 EP 3896994 A1 EP3896994 A1 EP 3896994A1 EP 20169938 A EP20169938 A EP 20169938A EP 3896994 A1 EP3896994 A1 EP 3896994A1
Authority
EP
European Patent Office
Prior art keywords
tube
headphones
membrane
rear wall
sound
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
EP20169938.6A
Other languages
German (de)
English (en)
Inventor
designation of the inventor has not yet been filed The
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.)
BURMESTER AUDIOSYSTEME GmbH
Original Assignee
BURMESTER AUDIOSYSTEME 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 BURMESTER AUDIOSYSTEME GmbH filed Critical BURMESTER AUDIOSYSTEME GmbH
Priority to EP20169938.6A priority Critical patent/EP3896994A1/fr
Priority to PCT/EP2021/059558 priority patent/WO2021209449A1/fr
Priority to EP21717891.2A priority patent/EP4136858A1/fr
Priority to US17/919,040 priority patent/US20230239609A1/en
Priority to CA3180185A priority patent/CA3180185A1/fr
Priority to CN202180036523.XA priority patent/CN115668975A/zh
Priority to JP2022562346A priority patent/JP2023521841A/ja
Priority to TW110113540A priority patent/TW202205878A/zh
Publication of EP3896994A1 publication Critical patent/EP3896994A1/fr
Pending legal-status Critical Current

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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
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2846—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • 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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • 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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • 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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • 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
    • H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers

Definitions

  • the housing is either designed to allow sound to pass through (open headphones) or to prevent most sound from passing through (closed headphones).
  • open headphones open headphones
  • closed headphones provide advantages and disadvantages depending on the situation.
  • a tube according to the present disclosure may allow low frequencies to pass from the rear volume through the rear wall into the environment. This reduces unwanted reflections of bass frequencies at the rear wall back into the user's ear and unwanted effects on the oscillation of the membrane.
  • the tube can have a size configured in that the air at the inner volume of the tube together with the rear volume and the compliance of the membrane form an acoustic low pass filter.
  • each earcup comprises: an electroacoustic sound generator having a membrane configured to radiate sound; a rear wall, wherein the membrane is arranged between the rear wall and the user's ear when the headphones are used, wherein a rear side of the membrane faces a rear volume between the membrane and the rear wall and a front side of the membrane faces a front volume between the membrane and the user's ear; wherein the headphones have a closed configuration and an open configuration.
  • the rear wall can be configured to allow sound to pass through in the open configuration and the rear wall being configured to prevent most sound from passing through in the closed configuration
  • the cut-off frequency of the acoustic low-pass filter is between 50 Hz and 500 Hz, specifically between 80 Hz and 300 Hz.
  • the tube 18 can be cylindrical in some embodiments. However, other shapes are possible, for example, a hexagonal shape (honeycomb shape).
  • the tube 18 can have a length from the first to the second opening between 0.8cm and 3 cm. In some embodiments, tube 18 has a diameter between 1.2mm to 6 mm. In some embodiments, tube 18 is arranged in the center of the membrane 13 which may correspond to the center of a plane between the rear volume 26 and the front volume 20.
  • the surface of the membrane 13 can be at least 5 or even 10 times larger than the first opening of the tube 18.
  • the tube 18 can be arranged in the center of the membrane 13. If the earcup has a plurality of parallel tubes, the surface of the membrane 13 can be at least 5 or even 10 times larger than the sum of the surface of first openings of the plurality of tubes 18.
  • sheets are not contacting each other in the open configuration and rotate between the closed and the open configuration.
  • sheets 30 can be arranged in two or more layers, wherein each layer has sheets and gaps.
  • each layer has sheets and gaps.
  • sheets of each layer overlap and gaps of each layer overlap.
  • gaps and sheets of different layers overlap, so that each gap is closed by a sheet of another other layer.
  • the layer or the layers may rotate around an axis perpendicular to the rear wall, in other words, the layer or layers rotate within the plane of the rear wall.
  • Sheets 30 have triangle shapes, wherein a first end is rotatable connected to the inner ring structure 31, a second end is rotatable connected to the outer ring structure 31/34 and a third end is placed in a recess or elongated hole 32 of the outer ring structure 31/34.
  • the recess or elongated hole 32 defines a path for the third end.
  • the third ends Upon following the path of the recess or elongated hole 32, the third ends cause the sheets 30 to rotate.
  • the recess or elongated hole 32 may be formed to cause a rotation from a starting point defined as 0° to an end point at between 60° and 90°.
  • earcup 10 can comprise dust protection elements which shield the mechanical and/or electronic parts of the headphones from dust and debris.
  • a dust protection element can be placed between protection element 35 and sheets 30 and/or between electroacoustic sound generator 12 and a user's ear. Dust protection elements do not influence sound propagation and comprise, for example, a foam structure or an acoustic permeable mesh.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Manufacturing & Machinery (AREA)
  • Headphones And Earphones (AREA)
EP20169938.6A 2020-04-16 2020-04-16 Écouteurs Pending EP3896994A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP20169938.6A EP3896994A1 (fr) 2020-04-16 2020-04-16 Écouteurs
PCT/EP2021/059558 WO2021209449A1 (fr) 2020-04-16 2021-04-13 Casque d'écoute
EP21717891.2A EP4136858A1 (fr) 2020-04-16 2021-04-13 Casque d'écoute
US17/919,040 US20230239609A1 (en) 2020-04-16 2021-04-13 Headphones
CA3180185A CA3180185A1 (fr) 2020-04-16 2021-04-13 Casque d'ecoute
CN202180036523.XA CN115668975A (zh) 2020-04-16 2021-04-13 耳机
JP2022562346A JP2023521841A (ja) 2020-04-16 2021-04-13 ヘッドフォン
TW110113540A TW202205878A (zh) 2020-04-16 2021-04-15 耳機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20169938.6A EP3896994A1 (fr) 2020-04-16 2020-04-16 Écouteurs

Publications (1)

Publication Number Publication Date
EP3896994A1 true EP3896994A1 (fr) 2021-10-20

Family

ID=70292926

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20169938.6A Pending EP3896994A1 (fr) 2020-04-16 2020-04-16 Écouteurs

Country Status (1)

Country Link
EP (1) EP3896994A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1853085A2 (fr) * 1997-04-17 2007-11-07 Bose Corporation Réduction de bruit acoustique
US20160330537A1 (en) * 2015-05-06 2016-11-10 Aliphcom Hybrid headset tuned for open-back and closed-back operation
EP3188503A1 (fr) * 2015-12-30 2017-07-05 GN Audio A/S Écouteur à réduction de bruit ayant un port modifié
US10623847B2 (en) * 2018-08-02 2020-04-14 EVA Automation, Inc. Headphone with multiple acoustic paths

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1853085A2 (fr) * 1997-04-17 2007-11-07 Bose Corporation Réduction de bruit acoustique
US20160330537A1 (en) * 2015-05-06 2016-11-10 Aliphcom Hybrid headset tuned for open-back and closed-back operation
EP3188503A1 (fr) * 2015-12-30 2017-07-05 GN Audio A/S Écouteur à réduction de bruit ayant un port modifié
US10623847B2 (en) * 2018-08-02 2020-04-14 EVA Automation, Inc. Headphone with multiple acoustic paths

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