Patent Grant
8411892
Speaker systems when not housed are conspicuous and take up space. There are many instances when it is desirable to camouflage, hide and reduce the visibility of speakers without the loss of sound quality, fidelity, stereo, surround-sound and other sound and sound quality characteristics positively associated with speaker systems.
The invention relates to a linear speaker assembly where a single elongated phase plug is employed over a plurality of speakers. The speakers are in a linear arrangement and may be single, multiple or in modules, but however deployed in the line, they share a unitary, linear, elongated phase plug. Generally speaking, a phase plug is a device inside a compression driver that ensures that the sound from the diaphragm of a speaker has an equal path length to the throat of the horn from all areas of the diaphragm, this prevents cancellation and extends high frequency response. Additionally, the outer elements of the linear speaker assembly, including the phase plug are such that they blend in with or are actually an integral part of a housing in which the linear speaker assembly is enclosed. This may be done in an aesthetically pleasing manner.
The invention relates to speakers which are housed in an enclosure. An example of such an enclosure includes, but is not limited to, moldings, frames, television housings, computer screen housings, radios, linear handles, cabinets and any and all other types of furniture. The invention specifically is concerned with the arrangement of the speaker, driver, throat, horn, phase plugs and other elements of the linear speaker assembly. In the case of a piece of furniture for instance, the instant invention would be employed generally as the following.
A linear speaker assembly including a plurality of speakers in side by side relation within a piece of furniture in such a manner that a horn element, a phase plug and other ancillary speaker structure forms a sound path that communicates from the speakers to the environment and the speaker assembly is partially concealed or camouflaged from the casual viewing of an observer. The phase plug and horn element are elongated and are provided along the entire length of the plurality of speakers which comprise a portion of the linear speaker assembly. The phase plug and horn element visually complement the outer portion of the piece of furniture that the plurality of speakers are disposed within. This permits the piece of furniture or other structure to provide amplified sound from a plurality of speakers in side by side relation in such a manner whereby the speaker assembly is substantially camouflaged or not visible.
For a more thorough understanding of the present invention, reference should be made to the following detailed description taken in conjunction with the following drawing figures wherein:
Referring now to
Element 55 represents a power supply as well and includes means to input an audio signal from any source. The input elements (not shown) are of a receiving type, well known in the art. From the power supply 55 means are provided to supply power and signal to the speakers located in all three modules (100, 110, & 120) as well as any other speakers which may be located in a generally linear relation to the three modules (100, 110 & 120). The arrangement of speakers and number of modules is not intended to be limited to that shown in the Figures of this application. There may be more or less than three modules, and there may be a greater or lesser number of speakers located intermediate the modules. The Figures show the linear arrangement of the speakers and modules in a horizontal state. This is not intended to be limiting. The scope of this disclosure includes vertical linear arrangements as well as angular linear arrangements. The aesthetic linear speaker assembly 10, including drivers 13, throats 12, horns 11, inner phase plug 245 and outer phase plug 280 may be in any angular arrangement as long as the elements of the linear speaker assembly remain adjacent. As such, power supply 55 and audio input will need to be connected to these modules and individual speakers. This is generally performed by electrically conductive wiring which is well known in the audio art; however other techniques may be employed such as wireless. Different regions of the globe have different standards for electrical output. The instant device may be adapted to European, Asian or American standards for electrical appliances or devices.
The linear speaker assembly mounting means 90 supports the linear speaker assembly's right module 100, central module 110 and left module 120 proximal the top side wall 70. The linear speaker assembly mounting means 90 includes means to support the three speaker modules 100, 110, and 120.
An upper partition wall 130 is disposed intermediate the front side wall 30 and the left side wall 40. The upper partition wall 130 is proximal the top side wall 70. The upper partition wall 130 does not extend the entire vertical length of the right side wall 50 and the left side wall 40. The vertical length of the upper partition wall is generally about the vertical length of the largest of the speakers which form the linear speaker assembly 10 and such a dimension may be best observed in
The linear speaker assembly right module 100 and left module 120 are generally rectangular. The front of the right module 100 and the front of the left module 120 is the linear speaker assembly module front side 102. The back of the right module 100 and the back of the left module 120 is the upper partition wall 130. The upper partition wall 130 and the linear speaker assembly module front side 102 are of generally the same horizontal and vertical dimension.
The right module is further defined by the right side wall 50 and the right module left sidewall 140. The right module 100 is additionally defined by the right module top sidewall 160. The right module 100 also includes a right module bottom sidewall (not shown). The right module bottom sidewall is parallel to and generally dimensionally the same as the right module top sidewall 160.
The left module is further defined by the left sidewall 40 and the left module right sidewall 150. The left module 120 is additionally defined by the left module top sidewall 170. The left module 120 also includes a left module bottom sidewall (not shown). The left module bottom sidewall is parallel to and generally dimensionally the same as the left module top sidewall 170.
The speaker assembly right module 100 and the speaker assembly left module 120 are generally dimensionally equivalent and both modules support 7 (seven) individual speakers in linear relation, these speakers are best seen in
The linear speaker assembly central module 110 is also rectangular and is defined by the speaker assembly module front side 102 and the speaker assembly central module rear wall 180. The central module 110 is further defined by a central module right wall 190 and a central module left wall 185. The speaker assembly module front side 102 and the central module rear wall 190 are parallel. Additionally, the central module right wall 190 is parallel to the central module left wall 185. The central module includes an upper sidewall (not shown). The central module bottom sidewall (not shown) is parallel to the central module top sidewall (not shown) which in turn is parallel to the generic piece of furniture top side wall 70. The central module top sidewall lies atop the central module rear wall 180, the central module right wall 190, the central module left wall 185 and the speaker assembly module front side 102. This central module top sidewall (not shown) is dimensioned such to be equivalent in size to the speaker assembly right module top sidewall 160 and to the speaker assembly left module top sidewall 170.
The central module 110 support 7 (seven) individual speakers in linear relation, these speakers are best seen in
The speaker assembly right module 100, central module 110 and left module 120 each have 7 individual speakers located in linear relation with each other. This gives 21 (twenty-one) speakers in side by side relation which are mounted in a generic piece of furniture 20 in such a fashion that the speaker, speaker driver 13, speaker throat 12 and speaker horn 11 are hidden or camouflaged in the furniture 20.
In front of, or coinciding with the 21 speakers which are mounted side by side, are several components including a driver portion 13, a throat portion 12 and a horn portion 11 which is best shown in
Additionally, horn portion 11 includes an upper curved airway 270 and a lower curved airway 275. Intermediate the upper curved airway 270 and the lower curved airway 275 is an outer phase plug 280. The outer phase plug 280 is affixed to the horn portion 11 by a T-shaped mounting element 290. The male portion 300 of the T-shaped mounting element 290 is received in a slot 305 provided in the outer phase plug 280.
As can be seen in
Referring specifically to
The driver portion inner side 200 is the element which nests or is affixed to any of the moldings, frames, television housings, computer screen housings, radios, linear handles, cabinets and any and all other types of furniture which is being employed. Then the driver portion outer side 210 is affixed adjacent the throat portion inner side 220. Additionally, the throat portion outer side 230 is affixed adjacent the horn portion inner side 250. Further, at the junction of the throat portion inner side 250 and the throat portion outer side 230, includes a centrally disposed rectangular cutout 240 which receives an inner phase plug 245. The throat 12 has this rectangular cutout 240 along the entire length of the series of speakers 320. The horn portion inner side 250 includes an air chamber 350. The air chamber 350 in this embodiment is generally trapezoidal and is the area that is cut out about the center of the horn portion inner side 250 which also covers the entire length of the series of speakers 320. The air chamber 350 abuts the outer phase plug 280, and the inner phase plug 245 is centrally disposed generally within. The distal end of the inner phase plug 245 resides in the rectangular cutout 240. The proximal end of the inner phase plug 245 may be integral with the T-shaped mounting element 290. It further may be described as the male portion of the T-shaped mounting element 300.
The outer phase plug 280 is shaped in such a fashion, that when mounted on the T-shaped mounting element 290 located on the horn 11 it forms an upper curved airway 270 and a lower curved airway 275. These two airways (270, 275) are in communication with the air chamber 350 and terminate at the horn portion outer side 260. In an important feature of this invention, the outer phase plug 280 acts as camouflage for the rearwardly disposed speakers 320. Additionally, the outer phase plug 280 may be shaped in such a fashion to complement the furniture or portion of furniture in which the linear speaker assembly 10 is located. In addition to the outer phase plug 290 complementing the furniture, the horn portion outer side 260, upper curved airway 270 and lower curved airway 275 are also located proximal to the outer wall of the furniture to which the linear speaker assembly 10 is mounted. These elements form the camouflage which reduces the visible impact of the linear tract of speakers to an observer.
The specific structural elements along the lateral portions of these and other components of the linear speaker assembly 10 will be addressed in the discussion of
Referring specifically to
Throat 12A is attached to driver 13A generally indicated by arrow B. Throat 12A has a throat portion inner side 220A and a throat portion outer side 230A. A rectangular cutout 240A is centrally disposed on the throat portion outer side 230A. The rectangular cutout 240A extends the length of the throat 12A. Two individual throat elements 12B are shown. In this specific embodiment the individual throat elements 12B are circular. The individual throat elements 12B are in communication with pair of individual speakers 5. In a general case there is a one to one correspondence between an individual throat element 12B and speaker 5. This one to one arrangement of speakers to throats would be the same for a module of speakers (previously described), a group of speakers, a pair of speakers, or a single speaker, such speakers being in a linear side by side physical relation.
Horn 11A includes a horn portion inner side 250A and horn portion outer side 260A. On the horn portion inner side 250A includes a centrally disposed inner phase plug 245A. The centrally disposed inner phase plug 245A traverses generally the entire length of the horn portion inner side 250A. Horn 11A is attached to throat 12A as generally indicated by arrow C. When the horn 11A is connected to throat 12A the centrally disposed inner phase plug 245A located on thorn portion inner side 250A is received in the centrally disposed rectangular cutout 240A located on the throat portion outer side 230A.
The horn portion outer side 260A has a C-shaped cutout 360 with a flat back 365. Both the C-shaped cutout 360 and the associated flat back 365 traverse generally the entire length of the horn 11A. The flat back 365 has a pair of apertures 12C. The pair of apertures 12C are in communication with the pair of individual throats 12B and in turn are in communication with the pair of speakers 5. This is a key relationship, speaker 5, throat 12B, aperture 12C, and this relationship holds true for any number of single speakers, pairs of speakers, groups of speakers or modules of speakers.
Located on the C-shaped cutout 360 is an upper curved portion 370 and a lower curved portion 375. The upper curved portion 370 and the lower curved portion 375 define the outer perimeter of an upper curved airway 270A (not shown, but equivalent to upper curved airway 270 of
The flat back 365 receives the T-shaped mounting element 290A as generally indicated by arrow D. The T-shaped mounting element 290A is secured to the flat back 365 by additional mechanical fasteners designated as element 310.
Outer phase plug 280A has a centrally disposed slot which will interfit with the T-shaped mounting element 290A by receiving the male portion of the T-shaped mounting element 300A as generally indicated by arrow E.
Referring back to the T-shaped mounting element 290A, there is shown a region 400, which is a portion of the T-shaped mounting element 290A which includes only the male portion of the T-shaped mounting element 300A. This region 400 is part of the sound pathway.
Outer phase plug 280A and the outer horn portion 260A are the elements of the linear speaker assembly which would be generally visible to an observer. These elements, the outer phase plug 280A and the outer horn portion 260A would form part of the exterior of a molding, frame, television housing, computer screen housing, a radio, certain linear handles, a cabinet or article of furniture in which the linear speaker system is disposed in. In this fashion, the speakers are hidden from view; however, the sound from the speakers may be listened to and enjoyed.
Referring now specifically to
Referring now specifically to
Additionally, speaker types may vary within the linear arrangement of speakers.
The speaker assembly right module top sidewall 160 and the speaker assembly left module 170 are shown atop their respective modules. The speaker assembly central module top sidewall is not shown, which permits the central module rear wall 180, the central module left wall 185 and the central module right wall 190 to be located.
A power supply 55 is shown proximal the generic piece of furniture rear side wall 60. Element 55 further includes means to input an audio signal from any source. The input elements (not shown) are of a receiving type, well known in the art. From the power supply 55 means are provided to supply power and signal to the speakers located in all three modules (100, 110, & 120).
This application claims benefit from U.S. Provisional Application No. 61/330,474 filed May 3, 2010, the disclosure of which is incorporated herein by reference in its entirety.
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