Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
  • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
  • H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R1/00—Details of transducers, loudspeakers or microphones
  • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/02—Constructional features of telephone sets
  • H04M1/11—Supports for sets, e.g. incorporating armrests
  • H04M1/12—Adjustable supports, e.g. extensible
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
  • H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
  • H04R2205/021—Aspects relating to docking-station type assemblies to obtain an acoustical effect, e.g. the type of connection to external loudspeakers or housings, frequency improvement

Definitions

• the labyrinth forms a tuned acoustic transmission line system so that the portable audio device in combination with the passive acoustic structure has a second frequency response that differs from the first frequency response of the portable audio device alone.
• the sound from the speaker radiates in a first direction, for example, out of the front of the device, and also radiates in a second direction, from the second opening of the passive acoustic structure.
• the combined audio output may provide a bass enhancement over the first frequency response of the portable audio device alone. In this way, a user may use their audio device as a music or multimedia playback device, having a rich, high- quality experience, typical of much larger devices.
• the sound radiating from the opening 116 in combination with the disclosed passive acoustic structure may provide more tunability of the frequency response of the device 102 than were the device to include a single audio port 114. It is understood that two or more audio ports are within the scope of this discussion. It is also understood that the audio port 114 and the opening 116 can both reside on a single surface of device 102.
• FIG. 3 depicts a front view of an embodiment of a passive acoustic structure 330 alone.
• the mechanically movable plate 460 of the portable audio device 402 may be configured to move when the device 402 is in the docking station 344 (see FIG. 3).
• the shutter or mechanically movable plate 460 of the portable audio device 402 may be held closed by a spring mechanism 462 when not positioned in the docking station 344.
• a male protrusion on the structure 330 may depress a mechanical coupling feature 464 on the portable audio device 402 that is mechanically coupled to the mechanically movable plate 460 which opens the opening 116 (see FIG. 1).
• FIG. 8 depicts a cut away view of a collapsible extension of a passive acoustic structure 830, the extension including the first housing section 874 and the second housing section 876 in a collapsed position.
• the second housing section 876 may be an extension section that pulls out from the first housing section 874.
• FIG. 9 depicts a cut away view of the same collapsible extension of a passive acoustic structure 930 depicted in FIG 8. The extension including the first housing section 974 and the second housing section 976 is depicted in an extended position.
• FIG. 11 illustrates another extension embodiment including replaceable components which can provide a fine tuning aspect of the passive acoustic structure 1130 and may allow a user to optimize the output for their own listening taste or to optimize the output for a given media content while also providing a level of fun user interaction consistent with certain product lines.
• user modifiable sections for example, sections 1186 and 1187 may be placed at the end 1142 of the transmission line 340 (see FIG. 3) so that a user may dynamically adjust the system frequency response of the combined portable audio device 102 (see FIG. 1) and structure 1130.
• a user may have many such extensions, including sections 1188, 1189 and 1190 and add them on as well to the structure 1130 for fine tuning.
• one or more additional add-on resistive elements such as a bass smoother 1192 may serve to smooth out the frequency response.
• the above - described extensions may have a tube shape including an integrated impedance element such as felt or screen, a porous material that fills the tube such as an open cell foam, and/or a series of small holes that may act as a predefined acoustic resistance.
• the above-described tuning aspect of the structure 1130 and portable audio device 1102 system may allow a user to optimize the output for their own listening taste and/or to optimize the output for a given media content while also providing a level of fun user interaction.
• the above- described passive acoustic structure may provide a bass enhancement for the typically small loudspeaker of a portable audio device.
• a user may use their mobile communication device as a music or multimedia playback device, having a rich, high- quality experience, typical of much larger devices.
• the above-described passive acoustic structure provides sound quality enhancement while providing no additional loudspeaker and therefore no additional circuitry.
• the docking station configuration may beneficially position a portable audio device in an upright position, possibly for viewing of the display screen while enhancing the frequency response of the device's loudspeaker.

Landscapes

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

Priority Applications (3)

Applications Claiming Priority (2)

Publications (2)

Family

ID=40798497

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (11)

Citations (1)

Family Cites Families (26)

• 2007
  • 2007-12-27 US US11/965,022 patent/US20090169040A1/en not_active Abandoned
• 2008
  • 2008-12-17 RU RU2010131197/28A patent/RU2462829C2/ru active
  • 2008-12-17 EP EP08869181A patent/EP2235962A4/en not_active Withdrawn
  • 2008-12-17 CN CN200880122621XA patent/CN101919262A/zh active Pending
  • 2008-12-17 IN IN2001KON2010 patent/IN2010KN02001A/en unknown
  • 2008-12-17 WO PCT/US2008/087102 patent/WO2009085796A2/en not_active Ceased
  • 2008-12-17 KR KR1020107014230A patent/KR20100091232A/ko not_active Ceased

Patent Citations (1)

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