US20030052613A1 - Illuminating speaker assembly - Google Patents
Illuminating speaker assembly Download PDFInfo
- Publication number
- US20030052613A1 US20030052613A1 US09/956,357 US95635701A US2003052613A1 US 20030052613 A1 US20030052613 A1 US 20030052613A1 US 95635701 A US95635701 A US 95635701A US 2003052613 A1 US2003052613 A1 US 2003052613A1
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- Prior art keywords
- light
- speaker assembly
- assembly according
- emitting diodes
- illuminating
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0217—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers
- B60R11/0223—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers of flat type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
Definitions
- This invention relates generally to audio/illumination systems, and more particularly to an illuminating speaker assembly for use in the passenger compartment of a vehicle.
- the audio system is simple in nature comprising, for example, an AM/FM radio and one or more speakers.
- late model vehicles including automobiles, SUVs, pickup trucks, and the like, more often than not are equipped with complex and elaborate audio entertainment systems which include, for example, an AM/FM radio, cassette tape player, compact disk player, and a plurality of loudspeakers mounted throughout the vehicle's passenger compartment in, for example, the dashboard, the headliner, the vehicle's doors, the vehicle's rear deck, etc.
- DML distributed-mode loudspeakers
- vehicular passenger compartments are provided with interior illumination systems which may be manually turned on by a passenger when needed or which are automatically energized under certain conditions, for example, when one of the vehicle's passenger compartment doors is opened in a low ambient light environment. In this manner, a driver/passenger is provided sufficient light at night to enter a vehicle, get settled, and start the vehicle.
- interior illumination systems which may be manually turned on by a passenger when needed or which are automatically energized under certain conditions, for example, when one of the vehicle's passenger compartment doors is opened in a low ambient light environment.
- a driver/passenger is provided sufficient light at night to enter a vehicle, get settled, and start the vehicle.
- Exemplary is the traditional dome light commonly mounted in an upper region of the passenger compartment's interior headliner. Such lights may also be positioned throughout the passenger compartment such as in other regions of the headliner, doors, sun visors, seats, etc.
- dome light While generally adequate for its intended purpose, the traditional dome light is simply a light. No means are generally provided for altering its color and intensity in order to create a desired atmosphere or ambience.
- the need to provide interior lighting within the vehicle's passenger compartment presents automotive designers with a problem similar to one associated with providing interior speakers. That is, both interior speakers and interior lighting fixtures consume space, which in turn contributes to the overall size and weight of the vehicle.
- an illuminating speaker assembly for use in the passenger compartment of a vehicle which includes a flat panel speaker for converting electrical audio signals into sound waves.
- the flat panel speaker utilizes a light-permeable, sound-producing panel.
- a light source is positioned within the flat panel speaker for generating light, which passes through the light-permeable, sound-producing panel.
- FIG. 1 is a bottom view of an illuminating speaker assembly in accordance with a preferred exemplary embodiment of the present invention
- FIG. 2 is a sectional view of the illuminating speaker assembly shown in FIG. 1 taken along line A-A;
- FIG. 3 is a functional block diagram of an exemplary illuminating apparatus for use in the inventive illuminating speaker assembly shown in FIG. 1 and FIG. 2;
- FIG. 4 is a graphical representation of the inventive illuminating speaker assembly shown in FIG. 1 and FIG. 2 deployed as a dome light in a conventional motor vehicle.
- the illuminating speaker assembly 12 includes a housing 14 which may be manufactured from any material that provides the necessary rigidity, e.g., metal, plastic, etc. Housing 14 is provided with an integral flange 18 around its periphery to which is coupled a mounting frame 20 manufactured from metal, plastic or any other material which provides appropriate support.
- a housing 14 which may be manufactured from any material that provides the necessary rigidity, e.g., metal, plastic, etc.
- Housing 14 is provided with an integral flange 18 around its periphery to which is coupled a mounting frame 20 manufactured from metal, plastic or any other material which provides appropriate support.
- a light-permeable, flexible panel 22 (manufactured from, for example, acrylic, foam, or the like) is coupled to mounting frame 20 as, for example, by a cushioning coupler 24 which extends around the periphery of panel 22 and is attached thereto at 26 .
- Coupler 24 may be made of any material suitable for such purpose such as foam, rubber, plastic, etc.
- An opposite region of coupler 24 is similarly attached to mounting frame 20 at 28 .
- housing 14 , flexible panel 22 , mounting frame 20 , and coupler 24 form the enclosure 29 of a flat panel, distributed-mode loudspeaker.
- an LED lighting system Positioned within enclosure 29 is an LED lighting system represented by light-permeable tubes 21 , 23 , and 25 , each of which contains a plurality of LEDs 27 . This lighting system is more fully described hereinbelow in connection with FIG. 3.
- an exciter assembly 31 having input terminals 33 is coupled to panel 22 by means of conic coupler 35 and drive rod 37 . While a variety of exciter technologies are available for energizing panel 22 , including piezoelectric transducers, a moving coil motor exciter is preferred. Flat panel, distributed panel loudspeakers are available from New Transducers Ltd, now known simply as NXT.
- FIG. 3 there is shown a simple block diagram representative of a Light-Emitting-Diode (LED) lighting system. It is well known that combining the light of one color with the light of another color will result in the creation of a third color. It is also well known that the primary colors—red, blue, and green—can be combined in different proportions to create many colors in the visible spectrum.
- FIG. 3 comprises an LED tube 30 that is electrically coupled to controller 32 .
- Tube 30 contains a plurality of red, blue, and green diodes positioned in a repeating pattern. That is, LEDs 34 are red, LEDs 36 are blue, and LEDs 38 are green. Tube 30 may contain, for example, thirty LEDs, ten of each color.
- the red LEDs 34 are activated to emit red light when an appropriate signal appears on output line 40 of controller 32 .
- blue LEDs 36 are energized over line 42
- green LEDs 38 are energized over line 44 .
- controller 32 generates electrical signals over output lines 40 , 42 , and 44 , which in turn control the intensity of light generated by the red, blue, and green LED groups, respectively.
- Controller 32 could simply include three potentiometers, each one for controlling the voltage on lines 40 , 42 , and 44 and thus the intensity of the red, blue, and green light components to produce a desired composite color. By varying the voltages on lines 40 , 42 , and 44 , the composite color emanating from tube 30 can be altered.
- three individual potentiometers could be incorporated into a single control device such as a track ball or joystick so as to permit the resultant color generated by LED tube 30 to be altered with a single adjustment.
- controller 32 may include a microprocessor thus resulting in a high-performance, computer-controlled, multicolored LED lighting system.
- Multicolored LED lighting systems of the type shown and described in conjunction with FIG. 3 are known.
- One such system is shown and described in U.S. Pat. No. 6,016,038 entitled “Multicolored LED Lighting Method and Apparatus” issued Jan. 18, 2000 and assigned to Color Kinetics, Inc., the teachings of which are hereby incorporated by reference.
- the resulting illuminating speaker assembly is particularly suitable for use within the passenger compartment of a motor vehicle as a replacement for the traditional audio speakers and dome light as is shown in FIG. 4.
- an illuminating speaker assembly 46 is mounted in an upper portion or headliner region 48 of a motor vehicle's passenger compartment. While only a single illuminating speaker is shown, it should be clear that a plurality of illuminating speakers may be deployed as, for example, in the four corner regions of the headliner or in other places where audio speakers or interior lights are traditionally deployed.
- an illuminating speaker assembly which can replace the traditional automotive dome light and audio speakers.
- One or more of the illuminating speakers may be mounted within the passenger compartment at convenient locations; for example, in the headliner.
- Each speaker assembly includes a light-permeable panel that is backlit with groups of red, blue, and green LEDs.
- the intensity of each group may be manually or automatically controlled to vary the color of the resultant or composite light passing through the light-permeable panel into the passenger compartment; i.e., the user will be able to customize the color of the light to produce a desired effect.
- the light intensity may be modulated with the same audio signals which drive the speaker to produce a light pattern that follows the beat of the music.
- the shape of the illuminating speaker may be modified so as to be accommodated at its location of deployment.
- the preferred exemplary embodiment has been described as utilizing three LED tubes containing red, blue and green LEDs, it should be appreciated that any light source may be employed (e.g., LEDs of only two colors or even monochromatic light) without departing from the scope of the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
- This invention relates generally to audio/illumination systems, and more particularly to an illuminating speaker assembly for use in the passenger compartment of a vehicle.
- It is well known that automotive vehicles are commonly equipped with audio entertainment systems. In some cases, the audio system is simple in nature comprising, for example, an AM/FM radio and one or more speakers. However, late model vehicles including automobiles, SUVs, pickup trucks, and the like, more often than not are equipped with complex and elaborate audio entertainment systems which include, for example, an AM/FM radio, cassette tape player, compact disk player, and a plurality of loudspeakers mounted throughout the vehicle's passenger compartment in, for example, the dashboard, the headliner, the vehicle's doors, the vehicle's rear deck, etc.
- In the past, such speaker systems utilized conventional loudspeakers of the type wherein pistonic motion of a diaphragm (i.e., a generally conical diaphragm moves as a rigid whole) is achieved by some method of transduction, e.g., electromagnetic, electrostatic, piezoelectric, etc. Such speakers are sometimes bulky, thus requiring that additional space be provided to accommodate their placement. In the case of door-mounted speakers, this could result in the necessity for doors thicker than would otherwise be required. Furthermore, the mounting of such speakers in the rear deck could result in a reduction of available trunk space. Finally, not only do traditional loudspeakers display variation in directivity with frequency, but also their sound performance is further degraded as a result of mounting them in undesirable locations such as the doors of a vehicle's passenger compartment.
- In the early 1990s, it was discovered that panels acted as efficient sound radiators. This discovery found application in loudspeakers, which are now referred to as flat panel, distributed-mode loudspeakers (DML). The diaphragm or panel of a DML vibrates in a complex pattern over its entire surface. Close to the diaphragm, the sound field created by this complex pattern of vibration is likewise complex; however, at a short distance away, it takes on the far-field characteristics of DML radiation which closely approximates the directivity of a true point source, i.e., approaching omni directional. New Tranducers Ltd., now known simply as NXT, was a leader in developing distributed-mode loudspeakers.
- It is also well known that vehicular passenger compartments are provided with interior illumination systems which may be manually turned on by a passenger when needed or which are automatically energized under certain conditions, for example, when one of the vehicle's passenger compartment doors is opened in a low ambient light environment. In this manner, a driver/passenger is provided sufficient light at night to enter a vehicle, get settled, and start the vehicle. Exemplary is the traditional dome light commonly mounted in an upper region of the passenger compartment's interior headliner. Such lights may also be positioned throughout the passenger compartment such as in other regions of the headliner, doors, sun visors, seats, etc.
- While generally adequate for its intended purpose, the traditional dome light is simply a light. No means are generally provided for altering its color and intensity in order to create a desired atmosphere or ambiance. In addition, the need to provide interior lighting within the vehicle's passenger compartment presents automotive designers with a problem similar to one associated with providing interior speakers. That is, both interior speakers and interior lighting fixtures consume space, which in turn contributes to the overall size and weight of the vehicle.
- In view of the foregoing, it should be appreciated that it would be desirable to provide an illuminating speaker assembly which eliminates the need for separate speaker and lighting fixtures within a vehicle's passenger compartment while at the same time improving and enhancing audio and lighting performance. Additional desirable features will become apparent to one skilled in the art from the foregoing background of the invention taken in conjunction with the following detailed description of a preferred exemplary embodiment and the appended claims.
- In accordance with the teachings of the present invention, there is provided an illuminating speaker assembly for use in the passenger compartment of a vehicle which includes a flat panel speaker for converting electrical audio signals into sound waves. The flat panel speaker utilizes a light-permeable, sound-producing panel. A light source is positioned within the flat panel speaker for generating light, which passes through the light-permeable, sound-producing panel.
- The present invention will hereinafter be described in conjunction with the accompanying drawings, wherein like reference numerals denote like elements, and wherein:
- FIG. 1 is a bottom view of an illuminating speaker assembly in accordance with a preferred exemplary embodiment of the present invention;
- FIG. 2 is a sectional view of the illuminating speaker assembly shown in FIG. 1 taken along line A-A;
- FIG. 3 is a functional block diagram of an exemplary illuminating apparatus for use in the inventive illuminating speaker assembly shown in FIG. 1 and FIG. 2; and
- FIG. 4 is a graphical representation of the inventive illuminating speaker assembly shown in FIG. 1 and FIG. 2 deployed as a dome light in a conventional motor vehicle.
- The following detailed description of a preferred exemplary embodiment of the invention is exemplary in nature and is not intended to limit the invention or its application or use.
- Referring to FIG. 1 and FIG. 2, there is shown an
illuminating speaker assembly 12 in accordance with the teachings of the present invention. The illuminating speaker assembly includes ahousing 14 which may be manufactured from any material that provides the necessary rigidity, e.g., metal, plastic, etc.Housing 14 is provided with anintegral flange 18 around its periphery to which is coupled a mountingframe 20 manufactured from metal, plastic or any other material which provides appropriate support. - A light-permeable, flexible panel22 (manufactured from, for example, acrylic, foam, or the like) is coupled to mounting
frame 20 as, for example, by acushioning coupler 24 which extends around the periphery ofpanel 22 and is attached thereto at 26.Coupler 24 may be made of any material suitable for such purpose such as foam, rubber, plastic, etc. An opposite region ofcoupler 24 is similarly attached to mountingframe 20 at 28. Thus, the structural cooperation ofhousing 14,flexible panel 22, mountingframe 20, and coupler 24 form theenclosure 29 of a flat panel, distributed-mode loudspeaker. Positioned withinenclosure 29 is an LED lighting system represented by light-permeable tubes LEDs 27. This lighting system is more fully described hereinbelow in connection with FIG. 3. - To complete the flat panel, distributed mode loudspeaker, an
exciter assembly 31 havinginput terminals 33 is coupled topanel 22 by means ofconic coupler 35 anddrive rod 37. While a variety of exciter technologies are available for energizingpanel 22, including piezoelectric transducers, a moving coil motor exciter is preferred. Flat panel, distributed panel loudspeakers are available from New Transducers Ltd, now known simply as NXT. - Referring now to FIG. 3, there is shown a simple block diagram representative of a Light-Emitting-Diode (LED) lighting system. It is well known that combining the light of one color with the light of another color will result in the creation of a third color. It is also well known that the primary colors—red, blue, and green—can be combined in different proportions to create many colors in the visible spectrum. To that end, FIG. 3 comprises an
LED tube 30 that is electrically coupled tocontroller 32. Tube 30 contains a plurality of red, blue, and green diodes positioned in a repeating pattern. That is,LEDs 34 are red,LEDs 36 are blue, andLEDs 38 are green.Tube 30 may contain, for example, thirty LEDs, ten of each color. Thered LEDs 34 are activated to emit red light when an appropriate signal appears onoutput line 40 ofcontroller 32. In a similar fashion,blue LEDs 36 are energized overline 42, andgreen LEDs 38 are energized overline 44. - As already alluded to,
controller 32 generates electrical signals overoutput lines Controller 32 could simply include three potentiometers, each one for controlling the voltage onlines lines tube 30 can be altered. Of course, three individual potentiometers could be incorporated into a single control device such as a track ball or joystick so as to permit the resultant color generated byLED tube 30 to be altered with a single adjustment. Finally,controller 32 may include a microprocessor thus resulting in a high-performance, computer-controlled, multicolored LED lighting system. - Multicolored LED lighting systems of the type shown and described in conjunction with FIG. 3 are known. One such system is shown and described in U.S. Pat. No. 6,016,038 entitled “Multicolored LED Lighting Method and Apparatus” issued Jan. 18, 2000 and assigned to Color Kinetics, Inc., the teachings of which are hereby incorporated by reference.
- The resulting illuminating speaker assembly is particularly suitable for use within the passenger compartment of a motor vehicle as a replacement for the traditional audio speakers and dome light as is shown in FIG. 4. As can be seen, an illuminating
speaker assembly 46 is mounted in an upper portion orheadliner region 48 of a motor vehicle's passenger compartment. While only a single illuminating speaker is shown, it should be clear that a plurality of illuminating speakers may be deployed as, for example, in the four corner regions of the headliner or in other places where audio speakers or interior lights are traditionally deployed. - From the foregoing description, it should be appreciated that there has been provided an illuminating speaker assembly which can replace the traditional automotive dome light and audio speakers. One or more of the illuminating speakers may be mounted within the passenger compartment at convenient locations; for example, in the headliner. Each speaker assembly includes a light-permeable panel that is backlit with groups of red, blue, and green LEDs. The intensity of each group may be manually or automatically controlled to vary the color of the resultant or composite light passing through the light-permeable panel into the passenger compartment; i.e., the user will be able to customize the color of the light to produce a desired effect. The light intensity may be modulated with the same audio signals which drive the speaker to produce a light pattern that follows the beat of the music.
- While a preferred exemplary embodiment has been shown and described, it should be appreciated that a vast number of variations exist. For example, the shape of the illuminating speaker may be modified so as to be accommodated at its location of deployment. Additionally, while the preferred exemplary embodiment has been described as utilizing three LED tubes containing red, blue and green LEDs, it should be appreciated that any light source may be employed (e.g., LEDs of only two colors or even monochromatic light) without departing from the scope of the invention.
- Thus, the above description is given by way of example only. One skilled in the art may make changes in form and details without departing from the spirit and scope of the invention as set forth in the appended claims.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US09/956,357 US6545418B1 (en) | 2001-09-20 | 2001-09-20 | Illuminating speaker assembly |
Applications Claiming Priority (1)
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US09/956,357 US6545418B1 (en) | 2001-09-20 | 2001-09-20 | Illuminating speaker assembly |
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US20030052613A1 true US20030052613A1 (en) | 2003-03-20 |
US6545418B1 US6545418B1 (en) | 2003-04-08 |
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US09/956,357 Expired - Fee Related US6545418B1 (en) | 2001-09-20 | 2001-09-20 | Illuminating speaker assembly |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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GB2436411A (en) * | 2006-03-23 | 2007-09-26 | Futuros Ltd | Lighting and sound reproduction |
US20080232088A1 (en) * | 2005-08-22 | 2008-09-25 | Koninklijke Philips Electronics, N.V. | Acoustic Light-Emitting Device |
DE102008054173A1 (en) * | 2008-10-31 | 2010-05-06 | Siemens Aktiengesellschaft | Interior light for passenger compartment of vehicle i.e. railway vehicle, has covering arranged in housing in removable manner, and loudspeaker fastened to housing on rear side of covering, where loudspeaker is covered by housing cover |
CN112956211A (en) * | 2019-07-24 | 2021-06-11 | 谷歌有限责任公司 | Dual panel audio actuator and mobile device including the same |
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US6396197B1 (en) * | 1995-12-22 | 2002-05-28 | Speaker Acquisition Sub, A Cayman Island Corporation | Piezoelectric speaker |
US6978030B2 (en) * | 2001-09-13 | 2005-12-20 | Reich Ronald S | Light emitting loudspeaker cover |
US7494243B2 (en) * | 2002-11-18 | 2009-02-24 | Whitegate Partners, Llc | Multi-color illumination display apparatus |
DE10316678B3 (en) * | 2003-04-10 | 2004-08-19 | Reitter & Schefenacker Sound Gmbh | Loudspeaker unit with integrated light source for use in automobile fitted to loudspeaker chassis on outside of loudspeaker membrane |
US20060013417A1 (en) * | 2004-07-16 | 2006-01-19 | Intier Automotive Inc. | Acoustical panel assembly |
US7265306B2 (en) * | 2004-09-15 | 2007-09-04 | Bodgan Radu | Flip pack switch assembly with electroluminescent lamp and injection molding method of making same |
US7237933B2 (en) * | 2004-09-20 | 2007-07-03 | Lear Corporation | Door trim bolster with electroluminescent lamp and injection molding method of making same |
US7299892B2 (en) * | 2004-09-20 | 2007-11-27 | International Automotive Components Group North America, Inc. | Door trim speaker grille with electroluminescent lamp and injection molding method of making same |
US7287885B2 (en) * | 2004-09-21 | 2007-10-30 | International Automotive Components Group, Llc | Automotive storage compartment having an electroluminescent lamp and method of making the same |
TWM276411U (en) * | 2005-02-23 | 2005-09-21 | Compal Electronics Inc | Speaker assembly with light-emitting functionality |
US20070064433A1 (en) * | 2005-06-17 | 2007-03-22 | Doug Wright | Recessed light fixture and speaker combination |
PL2141691T3 (en) * | 2008-07-03 | 2011-03-31 | Preform Gmbh | Adaptable noise creation device |
US20100177530A1 (en) * | 2009-01-13 | 2010-07-15 | Ford Global Technologies, Llc | Vehicle headliner module |
US20100280922A1 (en) * | 2009-05-01 | 2010-11-04 | Roberto Michele Giovannotto | Illumination and decoration for amplifier and speaker networks |
USD858481S1 (en) * | 2016-03-02 | 2019-09-03 | Dolby Laboratories Licensing Corporation | Headphones |
USD921612S1 (en) * | 2019-05-16 | 2021-06-08 | Harman International Industries, Incorporated | Illuminated loudspeaker |
USD914639S1 (en) * | 2019-05-16 | 2021-03-30 | Harman International Industries, Incorporated | Illuminated loudspeaker |
USD918173S1 (en) * | 2019-05-16 | 2021-05-04 | Harman International Industries, Incorporated | Illuminated loudspeaker |
USD913991S1 (en) * | 2019-05-16 | 2021-03-23 | Harman International Industries, Incorporated | Illuminated loudspeaker |
USD916052S1 (en) * | 2019-07-12 | 2021-04-13 | Harman International Industries, Incorporated | Illuminated loudspeaker |
USD1017578S1 (en) * | 2019-09-05 | 2024-03-12 | Yoto Limited | Media player device |
USD1017577S1 (en) * | 2019-09-05 | 2024-03-12 | Yoto Limited | Media player device |
US11608008B2 (en) | 2019-09-30 | 2023-03-21 | Honda Motor Co., Ltd. | Illuminated speaker panel assembly with integrated audio seal |
USD1012057S1 (en) | 2021-08-20 | 2024-01-23 | Harman International Industries, Incorporated | Loudspeaker |
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Cited By (7)
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US20080232088A1 (en) * | 2005-08-22 | 2008-09-25 | Koninklijke Philips Electronics, N.V. | Acoustic Light-Emitting Device |
GB2436411A (en) * | 2006-03-23 | 2007-09-26 | Futuros Ltd | Lighting and sound reproduction |
US20090010477A1 (en) * | 2006-03-23 | 2009-01-08 | Futuros Ltd. | Lighting and sound reproduction |
DE102008054173A1 (en) * | 2008-10-31 | 2010-05-06 | Siemens Aktiengesellschaft | Interior light for passenger compartment of vehicle i.e. railway vehicle, has covering arranged in housing in removable manner, and loudspeaker fastened to housing on rear side of covering, where loudspeaker is covered by housing cover |
DE102008054173B4 (en) * | 2008-10-31 | 2014-03-27 | Siemens Aktiengesellschaft | Interior lighting for the passenger compartment of a vehicle |
CN112956211A (en) * | 2019-07-24 | 2021-06-11 | 谷歌有限责任公司 | Dual panel audio actuator and mobile device including the same |
US11284212B2 (en) * | 2019-07-24 | 2022-03-22 | Google Llc | Dual panel audio actuators and mobile devices including the same |
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