• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An acoustical device includes a housing operative to be placed proximate to an ear of a wearer and a front volume partially defined by the housing. A controlled leakage pathis disposed to acoustically and selectively couple the front volume of the housing with an exterior of the device.
    公开号:DK201770578A1
    申请号:DKP201770578
    申请日:2017-07-18
    公开日:2018-02-19
    发明作者:Thomas Pieter J Peeters
    申请人:Tymphany Hk Ltd；
    IPC主号:
    专利说明:

    (19) DANMARK (1θ) DK 2017 70578 A1
    (12)
    PATENTANSØGNING
    Patent- og
    Varemærkestyrelsen (51) (21) (22) (24) (41) (30) (71) (72) (74) (54) (56) (57)
    Int.CI.: H 04 R 1/10(2006.01)
    Ansøgningsnummer: PA 2017 70578
    Indleveringsdato: 2017-07-18
    Løbedag: 2017-07-18
    Aim. tilgængelig: 2018-01-20
    Prioritet: 2016-07-19 US 62/364,121
    Ansøger: Tymphany HK Limited, Room 1307-1308, Dominion Centre 43-59 , Queens Road East Wanchai, Hong Kong
    Opfinder: Thomas Pieter J. Peeters, C/O TYMPHANY 10F, No.19-2, Sanchong Rd, Taipei 15, Hong Kong
    Fuldmægtig: Patentgruppen A/S, Arosgården, Åboulevarden 31,4., 8000 Århus C, Danmark
    Benævnelse: CLOSED ACOUSTICAL ARCHITECTURE HAVING A CONTROLLED LEAKAGE
    Fremdragne publikationer:
    WO 97/00592 A2
    US 2009/0180657 A1
    US 2013/0308786 A1
    Sammendrag:
    An acoustical device includes a housing operative to be placed proximate to an ear of a wearer and a front volume partially defined by the housing. A controlled leakage pathis disposed to acoustically and selectively couple the front volume of the housing with an exterior of the device.
    Fortsættes ...
    DK 2017 70578 A1
    FIGURE
    DK 2017 70578 A1
    CLOSED ACOUSTICAL ARCHITECTURE HAVING A CONTROLLED LEAKAGE
    TECHNICAL FIELD
    The present disclosure relates to audio applications, and more specifically, to 5 acoustical devices such as headphones.
    BACKGROUND
    Fully closed headphones (circum-aural or supra-aural) are generally not seen in the current market. By fully closed it is meant that there are no venting or controlled acoustic leakages from the front volume to the outside, from the back volume to the outside or connecting the front and back volumes.
    There are various reasons why a fully closed headphone acoustical architecture may not be the preferred acoustical system.
    (1) The fully closed front volume will cause a DC pressure on the headphone driver, potentially causing permanent deformation of the diaphragm (2) The fully closed acoustical system will be very susceptible to uncontrollable leakages occurring when the headphones are in use. A leakage may be introduced between the ear pad and the wearer’s head and/or ear due to hair or glasses.
    SUMMARY
    According to an embodiment an acoustical device includes a housing operative to be placed proximate to an ear of a wearer and a front volume partially defined by the housing. A controlled leakage path is disposed to acoustically and selectively couple the front volume of the housing with an exterior of the device.
    According to another embodiment an acoustical device includes a housing, a back volume arranged in the housing, a driver arranged in the back volume, and a front volume
    Page 1 of8
    DK 2017 70578 A1 arranged in the housing. A controlled leakage path, arranged such that the front volume is communicative with an exterior of the device via the controlled leakage path.
    BRIEF DESCRIPTION OF THE DRAWING
    For a more complete understanding of this disclosure, reference is now made to the following brief description, taken in connection with the accompanying drawings and detailed description, wherein like reference numerals represent like parts:
    The single Figure shows a cut-away view of a headphone device.
    DETAILED DESCRIPTION
    As discussed above there are several disadvantages to fully closed headphones.
    However, there are also several advantages for preferring a fully closed headphone acoustical architecture.
    (1) By fully closing the back volume, the back volume can be minimized in size as no account need to be taken of the mechanical and acoustical dimensions of venting. This minimized back volume allows for more freedom in the industrial design;
    (2) The ear cup housing may have uncontrolled leakages (e.g. due to mechanical buttons to operate the headphones, hinges that couple the earcup to the headband structure, etc.). By fully closing the back volume behind the driver, these uncontrolled leakages will not influence the headphones audible frequency response.
    What is desired is a closed acoustical device having a controlled leakage that benefits from the advantages of a fully closed systems but that does not include the disadvantages.
    Page 2 of8
    DK 2017 70578 A1
    Referring to the Figure, a cut-away view of a headphone 100 is shown as including a driver 102. The driver 102 is a transducer for converting an electrical signal into audible sound. The driver is communicatively connected to an audio source (not shown) to receive the electrical signals.
    A back volume Vb 104 is a fully closed (sealed) volume (cavity) behind the driver
    102. A front volume Vf 106 is a volume (cavity) in front of the driver 102. The front volume 106 couples the driver 102 acoustically to a wearer’s ear when worn. An ear pad (cushion) 108 may be a circum or circa aural ear pad, for creating an acoustical seal with the wearers head and/or ear, which are represented by the line 101.
    An ear cup housing 110 is the external portion of the ear cup, which encloses, among other elements, the headphone driver 102, the back volume 104, and in some embodiments electronics for audio processing and/or wireless communication in embodiments with wirelessly connected headphones.
    The acoustical device of the Figure introduces a controlled leakage path 112 into a fully closed acoustical architecture, which couples the front volume 106 to the outside ambient air 114. The back volume 104 remains fully closed such that the only controlled leakage path 112 is from the front volume 106 to the outside.
    This controlled leakage path 112 makes the closed headphones less susceptible to uncontrolled leakages occurring between the ear pad 108 and the wearers head and/or ear.
    The controlled leakage path 112 lowers the risk of damaging the driver 102 diaphragm when the headphones 100 are in use.
    This controlled leakage path 112 is dimensioned as such that the audible sound is affected in the very low frequencies. This can for example be achieved by dimensioning the controlled leakage path 112 as a long but narrow, hollow tube where the length of the tube is greater than the width of the tube. The hollow tube has a large acoustical mass.
    Page 3 of8
    DK 2017 70578 A1
    The mechanical element introducing the controlled leakage path 112 may in some embodiments also include an additional resistive acoustical member 116, in the form of for example a mesh or woven material. This resistive acoustical member 116 may introduce further control over the acoustical behavior of the front volume and the controlled leakage path 112.
    The corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed. The description of the present invention has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the invention. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
    While the preferred embodiments to the invention have been described, it will be understood that those skilled in the art, both now and in the future, may make various improvements and enhancements which fall within the scope of the claims which follow.
    These claims should be construed to maintain the proper protection for the invention first described.
    Page 4 of8
    DK 2017 70578 A1
    权利要求:
    Claims (3)
    [1] 1/1
    100
    FIGURE fMmsH Fato Asm Oma
    SEARCH REPORT - PATENT Application No.PA 2017 70578 1. 1 1 Certain claims were found unsearchable (See Box No. I).2. 1 1 Unity of invention is lacking prior to search (See Box No. II). A. CLASSIFICATION OF SUBJECT MATTERH04R 1/10(2006.01)According to International Patent Classification (IPC) or to both national classification and IPC B. FIELDS SEARCHED PCT-minimum documentation searched (classification system followed by classification symbols)IPC&CPC: H04R Documentation searched other than PCT-minimum documentationDK, NO, SE, FI: IPC-classes as specified above in Box A. Electronic database consulted during the search (name of database and, where practicable, search terms used)EPODOC, WPI, FULL TEXT: ENGLISH C. DOCUMENTS CONSIDERED TO BE RELEVANT Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant for claim No. XXAXA WO 97/00592 A2 (PLANTRONICS) 1997.01.03, see especially fig. 4e; page 13, lines 5-8US 2009/0180657 Al HSVAN) 2009.07.16, see especially fig. 3; paragraph [0034]US 2013/0308786 Al (SIBBALD et al.) 2013.11.21, see especially fig. 2-3; paragraphs [0047], [0057] 1-201-7, 11-178-10, 18-201-5,7, 11-14, 16-176, 8-10, 15, 18-20 1 1 Further documents are listed in the continuation of Box C. * Special categories of cited documents:A Document defining the general state of the art which is notconsidered to be of particular relevance.D Document cited in the application.E Earlier application or patent but published on or after the filing date.L Document which may throw doubt on priority claim(s) or which iscited to establish the publication date of another citation or other special reason (as specified).O Document referring to an oral disclosure, use, exhibition or othermeans. P Document published prior to the filing date but later than thepriority date claimed.T Document not in conflict with the application but cited tounderstand the principle or theory underlying the invention.X Document of particular relevance; the claimed invention cannot beconsidered novel or cannot be considered to involve an inventive step when the document is taken alone.Y Document of particular relevance; the claimed invention cannot beconsidered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art.Document member of the same patent family. Danish Patent and Trademark OfficeHelgeshøj Allé 81DK-2630 TaastrupDenmarkTelephone No. +45 4350 8000Facsimile No. +45 4350 8001 Date of completion of the search report18 January 2018 Authorized officerSusanne HalkjærTelephone No. +45 4350 8488
    Search Report
    SEARCH REPORT - PATENT Application No.PA 2017 70578 C (Continuation). DOCUMENTS CONSIDERED TO BE RELEVANT Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant for claim No.
    Search Report
    SEARCH REPORT - PATENT Application No.PA 2017 70578 Box No. I Observations where certain claims were found unsearchable
    This search report has not been established in respect of certain claims for the following reasons: !·□ Claims Nos,:
    because they relate io subject matter not required to be searched, namely:
    1. An acoustical device, comprising:
    a housing operative to be placed proximate to an ear of a wearer;
    5 a front volume partially defined by the housing; and a controlled leakage path disposed to acoustically and selectively couple the front volume of the housing with an exterior of the device.
    [2] 2. I I Claims Nos.:
    because they relate to parts of the patent application that do not comply with the prescribed requirements to such an extent that no meaningful search can be carried out, specifically:
    2. The device of claim 1, wherein the controlled leakage path is partially defined by a 10 hollow tube.
    3. The device of claim 1 or 2, wherein the hollow tube has a length greater than a width of the hollow tube.
    15
    4. The device according any of the claims 1-3, wherein the front volume is partially defined by a driver, an ear pad, and the ear of a wearer.
    5. The device according any of the claims 1-4, further comprising: a back volume arranged in the housing; and
    20 a driver arranged in the back volume.
    6. The device according any of the claims 1-5, wherein the back volume is sealed.
    7. The device according any of the claims 1-6, wherein the driver is operative to 25 convert an electrical signal into an audible sound.
    8. The device according any of the claims 1-7, further comprising a resistive acoustical member arranged in the front volume.
    Page 5 of8
    DK 2017 70578 A1
    9. The device according any of the claims 1-8, wherein the resistive acoustical member includes a woven material.
    10. The device according any of the claims 1-9, wherein the resistive acoustical member includes a mesh.
    11. The device according any of the claims 1-10, further comprising an ear pad arranged proximate to the front volume of the housing.
    12. The device according any of the claims 1-11, wherein the controlled leakage path defines a communicative path between the front volume and the ambient exterior of the device.
    13. An acoustical device, comprising: a housing;
    a back volume arranged in the housing; a driver arranged in the back volume; a front volume arranged in the housing; and a controlled leakage path, wherein the front volume is communicative with an exterior of the device via the controlled leakage path.
    14. The device of claim 13, further comprising an ear pad that partially defines the front volume, the ear pad operative to be arranged in contact with a head of a wearer to substantially seal the front volume.
    15. The device of claim 13 or 14, wherein the back volume is sealed.
    16. The device according any of the claims 13-15, wherein the controlled leakage path is partially defined by a hollow tube.
    Page 6 of8
    DK 2017 70578 A1
    17. The device according any of the claims 13-16, wherein the hollow tube has a length greater than a width of the hollow tube.
    18. The device according any of the claims 13-17, further comprising a resistive 5 acoustical member arranged in the front volume.
    19. The device according any of the claims 13-18, wherein the resistive acoustical member includes a woven material.
    10 20. The device according any of the claims 13-19, wherein the resistive acoustical member includes a mesh.
    Page 7 of8
    DK 2017 70578 A1
    [3] 3. I I Claims Nos.: because of other matters.
    Box No. II Observations where unity of invention is lacking prior to the search
    The Danish Patent and Trademark Office found multiple inventions in this patent application, as follows:
    Search Report
    SEARCH REPORT - PATENT Application No.PA 2017 70578 SUPPLEMENTAL BOX Continuation of Box [.]
    Search Report
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1997000592A2|1995-06-19|1997-01-03|Plantronics, Inc.|Headset with user adjustable frequency response|
    US20090180657A1|2003-06-04|2009-07-16|Plantronics, Inc. A Delaware Corporation|Personal communication method and apparatus with reduced audio leakage|
    US20130308786A1|2007-02-16|2013-11-21|Wolfson Microelectronics Plc|Ear-worn speaker-carrying devices|
    US2363175A|1942-08-26|1944-11-21|Frederick M Grossman|Electrically and acoustically excited hearing aid|
    NL7001438A|1969-02-17|1970-08-19|
    JPH1032892A|1996-05-16|1998-02-03|Sony Corp|Open-type headphone|
    US5790679A|1996-06-06|1998-08-04|Northern Telecom Limited|Communications terminal having a single transducer for handset and handsfree receive functionality|
    WO2006056913A1|2004-11-24|2006-06-01|Koninklijke Philips Electronics N.V.|In-ear headphone|
    US7391878B2|2005-01-12|2008-06-24|Sheng-Hsin Liao|Earphone device having composite functions|
    TW200939853A|2008-03-14|2009-09-16|Cotron Corp|Speaker structure capable of adjusting ventilation of a chamber therein|
    US8416960B2|2009-08-18|2013-04-09|Bose Corporation|Feedforward ANR device cover|
    JP2011087048A|2009-10-14|2011-04-28|Audio Technica Corp|Headphone|
    US8447058B1|2011-12-02|2013-05-21|Merry Electronics Co., Ltd.|Headphone with acoustic modulator|
    WO2016031044A1|2014-08-29|2016-03-03|Ｐｉｏｎｅｅｒ ＤＪ株式会社|Headphone|
    US10617333B2|2014-09-19|2020-04-14|3M Innovative Properties Company|Acoustically probed over-the-ear hearing assessment devices and methods|
    US9621979B2|2014-11-20|2017-04-11|Bose Corporation|Pressure equalization systems and methods|
    CN204795520U|2015-07-07|2015-11-18|中山市天键电声有限公司|In -ear earphone|
    CN205105363U|2015-10-13|2016-03-23|吉伯生创新比利时有限责任公司|Headset assembly and including headset assembly's earphone|
    法律状态:
    2019-07-02| PHB| Application deemed withdrawn due to non-payment or other reasons|Effective date: 20190609 |
    优先权:
    申请号 | 申请日 | 专利标题
    US201662364121P| true| 2016-07-19|2016-07-19|
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