EP2277321B1 - Adjustable, dual speaker element in-ear phone - Google Patents
Adjustable, dual speaker element in-ear phone Download PDFInfo
- Publication number
- EP2277321B1 EP2277321B1 EP09751283.4A EP09751283A EP2277321B1 EP 2277321 B1 EP2277321 B1 EP 2277321B1 EP 09751283 A EP09751283 A EP 09751283A EP 2277321 B1 EP2277321 B1 EP 2277321B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- speaker element
- bridge
- earphone
- hanger bar
- listener
- 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.)
- Not-in-force
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- 210000003128 head Anatomy 0.000 description 6
- 241001088162 Primula auricula Species 0.000 description 5
- 235000006894 Primula auricula Nutrition 0.000 description 5
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- 230000006978 adaptation Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
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- 238000009429 electrical wiring Methods 0.000 description 2
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Images
Classifications
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- 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
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- 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
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
-
- 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
- H04R1/105—Earpiece supports, e.g. ear hooks
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- 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
- H04R1/1075—Mountings of transducers in earphones or headphones
Definitions
- the present disclosure generally relates to earphones for sound reproduction with high fidelity and more particularly to adjustable dual element in-ear earphones having one transducer for each ear directed to reproducing higher frequencies and one transducer for each ear directed to reproducing lower frequencies.
- U.S. Patent No. 5,333,206 titled “DUAL ELEMENT HEADPHONE,” discloses a dual element headphone including (a) one transducer that is substantially larger than the cavum concha of a typical human ear and (b) one smaller transducer that fits into the cavum concha. Other than the curvature of the headband, however, the headphones disclosed in this patent are not adjustable.
- U.S. Patent No. 5,729,615 titled "IN-EAR TYPE EARPHONE HAVING AN EAR HANGER,” discloses an earphone having one in-ear speaker element connected to a shaft.
- the speaker element is pivotably rotatable with respect to the shaft.
- the shaft is slidably movable along its axis.
- the position of the earphone can be raised or lowered vertically by sliding the shaft.
- the earphone can be rotated in the roll direction, but in the roll direction only. Therefore, while the earphone disclosed in this patent discloses some mechanisms for adjusting the position and orientation of the earphone, the permitted adjustments are limited.
- the earphone of this patent only has one speaker element.
- US2007/0104345 discloses an in-ear type earphone with an ear hanger.
- an earphone is provided.
- the earphone can comprise a first speaker element and a second speaker element extending from the first speaker element, wherein the second speaker element is sized and configured to fit at least partially into a cavum concha of a listener's ear, and wherein the second speaker element is connected to the first speaker element by a pivotable joint; a bridge comprising a first end and a second end, wherein the first speaker element is pivotably connected to the first end of the bridge, and a hanger bar comprising a first portion and a second portion, wherein the first portion is threadingly connected to the second end of the bridge.
- the second portion of the hanger bar is configured to rest upon a part of a listener's ear when worn by the listener.
- the first end of the bridge defines a first axis, wherein the first speaker element may rotate about the first axis.
- the second end of the bridge defines a second axis.
- the first portion of the hanger bar is threadingly connected to the second end of the bridge such that the hanger bar may rotate about the second axis.
- an earphone can comprise a first speaker element and a second speaker element extending from the first speaker element, a bridge comprising a first end and a second end, wherein the speaker element is pivotably connected to the first end of the bridge, and a hanger bar comprising a first portion and a second portion.
- the second end of the bridge comprises a rotatable knob that is accessible to a listener when the earphone is worn by the listener.
- the first portion of the hanger bar is operably engaged to the rotatable knob such that rotation of the knob causes the second portion to at least translate relative to the bridge.
- the second portion of the hanger bar is configured to rest upon a part of the listener's ear when worn by the listener.
- a method of wearing an earphone can include the steps of providing an earphone comprising a first speaker element and a second speaker element extending from the first speaker element, a bridge comprising a first end and a second end, wherein the first speaker element is pivotably connected to the first end of the bridge and wherein the second end comprises a rotatable knob, and a hanger bar comprising a first portion and a second portion, wherein the first portion is operably engaged to the rotatable knob such that rotation of the knob causes the second portion of the hanger bar to at least translate relative to the bridge.
- the method further comprises the steps of rotating the knob to adjust a distance between the second portion of the hanger bar and the bridge, rotating the first speaker element relative to the bridge, and placing the hanger bar on a part of a listener's ear such that the first speaker element is aligned with the cavum concha of the listener's ear.
- an earphone can comprise a first speaker element and a second speaker element extending from the first speaker element.
- the first speaker element can comprise an enclosure having a wall, a first transducer disposed within the enclosure, the first transducer configured to produce a first sound, and a first cavity defined between the wall of the enclosure and the first transducer.
- the second speaker element can comprise a housing sized and configured to fit at least partially into a cavum concha of a listener's ear, the housing having a backing and a sound emanating surface, wherein the sound emanating surface includes first sound openings and second sound openings defined therein, a second transducer disposed within the housing, the second transducer configured to produce a second sound that emanates through the second sound openings but not through the first sound openings, and a second cavity defined between the backing of the housing and the second transducer.
- the first cavity, the second cavity, and the first sound openings define a sound path for the first sound produced by the first transducer such that the first sound travels through the sound path and emanates through the first sound openings but not through the second sound openings.
- an earphone can comprise a second speaker element configured to fit at least partially into a cavum concha of a listener's ear and a hanger bar operably connected to the speaker element.
- the hanger bar is configured to rest upon an upper external curvature of a listener's ear and behind an upper portion of an auricula of the listener's ear.
- the hanger bar has a shape configured to cause the speaker element to exert a force on the listener's ear, independent of gravity.
- Various embodiments are directed to an adjustable, dual speaker element earphone, wherein one of the speaker elements (the smaller one) is sized to fit into the cavum concha of the listener's ear and the other element (the larger one) is not.
- the positioning of the speaker elements may be adjustable so that the user can adjust the positioning of the speaker elements for increased comfort.
- the larger speaker element may be rotated about a vertical axis of the hinged joint so that the larger speaker element can be rotated towards or away from the listener's ear.
- the smaller speaker element may be adjusted relative to the larger speaker element.
- the smaller speaker element may be connected to the larger speaker element by a knuckle-ball joint, a ball joint, or some other similar pivotable joint, that provides multiple degrees of rotational freedom but limits or prevents translational movement for the smaller speaker element relative to the larger speaker element.
- the earphone may comprise a hanger bar that the listener uses to position the earphone on the listener's ear.
- the hanger bar may comprise a horizontal section that rests upon the upper external curvature of the listener's ear behind the upper portion of the auricula (or pinna).
- the earphone may comprise a knurled knob that allows the user to adjust finely the distance between the horizontal section of the hanger bar and the speaker elements, thereby providing, in such embodiments, another measure of adjustability for the user.
- an adjustable, dual speaker element earphone wherein one of the speaker elements is sized to fit into the cavum concha of the listener's ear.
- Figures 1 through 4 illustrate one embodiment of the earphone 10.
- Figure 1 is a perspective view of the earphone 10 being worn on the ear 12 of a human listener 14;
- Figure 2 is a side view of the earphone 10;
- Figure 3 is a front view of the the earphone 10;
- Figure 4 is a top view of the earphone 10.
- the earphone 10 comprises, among other elements, a first speaker element 20, a second, in-ear speaker element 22, a hanger bar 24, and a horrl bridge 26.
- proximal and distal are used herein with reference to the listener's head. Accordingly, the proximal components of the earphone 10 are toward the listener's nose, and the distal components are torward the rear of the listener's head. Also, the spatial terms “vertical” and horizontal” are used herein with respect to the drawings. These terms are not intended to be limiting or absolute.
- the first speaker element 20 may be generally circular, as shown in the figures, and may be sized large enough that it does not fit into the cavum concha of the vast majority of human listeners 14.
- the second speaker element 22 also may be generally circular in shape, and may be extend outwardly from an inner portion 28 of the first speaker element 20.
- the second speaker element 22 may be rigidly fixed to the inner surface 28 of the first speaker element 20 so that there is no relative movement between the first and second speaker elements.
- the second speaker element 22 may be connected to the first speaker element 20 by an arm 23 such that the second speaker element 20 extends generally perpendicularly from the first speaker element 20.
- the inner surface 28 of the first speaker element 20, the arm 23, and the backing 25 of the second speaker element 22 may be made from a single piece of injection molded plastic so that their positions are fixed.
- the hanger bar 24 may be substantially L-shaped, having (i) a first, proximal portion 30 that extends generally vertically from the tragel bridge 26, and (ii) a second, distal portion 32, generally perpendicular to the first portion 30, that extends horizontally away from the first portion 30 and is designed to rest upon the upper external curvature of the ear 12 behind the upper portion 13 of the auricula (or pinna).
- the hanger bar 24 may have a circular cross-section, and may be made out of plastic, metal, or any other suitable material.
- the tragel bridge 26 includes a vertically oriented, distal gudgeon 34 fixedly connected to the first speaker element 20 at a proximal edge of the first speaker element 20.
- the gudgeon 34 and the tragel bridge 26 may be generally tangential to a proximal edge of the circular first speaker element 20.
- a slotted retaining bolt or pintle 36 is inserted through the opening defined by the gudgeon 34 to connect hingedly the first speaker element 20 to the tragel bridge 26. That way, the first speaker element 20 can be rotated about the vertical axis of the gudgeon 34 so that the first speaker element 20 can be rotated toward or away from the listener's ear 12.
- the gudgeon 34 may be made from metal or plastic, for example.
- an outer peripheral backing 42 of the first speaker element 20 and the gudgeon 34 may be made from an integrated piece of injection-molded plastic.
- the height of the tragel bridge 26 may be less than the diameter of the first speaker element 20.
- the height of the tragel bridge 26 may be approximately one-half the diameter of the first speaker element 20.
- tragel bridge 126 may be larger than one-half the diameter of first speaker element 120, but less than the diameter of the first speaker element 120.
- cylindrical knurled knob 148 may be larger than knob 48, described above, such that a listener may have a larger surface area with which to contact and rotate knob 148 to adjust hanger bar 124.
- Figures 5-7 show aspects of the tragel bridge 26 according to various embodiments.
- Figure 5 is a section view of the tragel bridge 26 showing the gudgeon 34 and the pintle 36.
- the tragel bridge 26 is omitted so that other components in the tragel bridge 26 can be viewed.
- a plastic friction O-ring 38 may be disposed between the head 40 of the pintle 36 and the upper portion of the gudgeon 34. The O-ring 38 may reside inside the tragel bridge 26 so that it cannot normally be seen.
- the purpose of the O-ring 38 is to provide friction between the gudgeon 34 and the pintle 36 such that rotation of the first speaker element 20 relative to the tragel bridge 26 is resisted and a relative position may be maintained between the first speak element 20 and the tragel bridge 26.
- the tragel bridge 26 has upper and lower flanges 42, 44 above and below the gudgeon 34, respectively.
- the pintle 36 is inserted through the upper flange 42, the gudgeon 34, and the lower flange 44, to thereby hingedly connect the gudgeon 34 to the tragel bridge 26.
- the pintle 36 may include a lower slot through which a speaker wire 46 may be feed into the tragel bridge 26 and to the first and second speaker elements 20, 22.
- the tragel bridge 26 may also include a cylindrical knurled knob 48 vertically oriented at a proximal end of the tragel bridge 26.
- the knurled knob 48 may define a vertical opening therethrough, with threads on the interior of the knurled knob 48 around the opening.
- the lower end of the first portion 30 of the hanger bar 24 may have corresponding threads, as shown in Figure 5 , which mate with the threads of the knurled knob 48. Rotation of the knurled knob 48 about its vertical axis thereby causes the horizontal portion 32 of the hanger bar 24 to be adjusted vertically with respect to the tragel bridge 26 (and hence the speaker elements 20, 22).
- the threads of the hanger bar 24 and the knurled knob 48 may be relatively fine, to provide fine adjustment for the user.
- the threads of the hanger bar 24 and the knurled knob 48 may be relatively coarse, to provide coarse adjustment for the user.
- the knurled knob 48 may be made from plastic or metal, for example.
- the knob 48 may be rotated relative to the hanger bar 24 to the point where the threads of the hanger bar 24 disengage from the knurled knob 48.
- the hanger bar 24 may be rotated relative to the knob 48 such that the threads of hanger bar 24 disengage from the knob 48.
- another hanger bar (not shown), having different dimensions of a first portion 30 and/or a second portion 32, may then be inserted into the horrl bridge 26 at knob 48. Accordingly, different sized hanger bars may be provided to fit a variety of people having different sized ears.
- the threads of the lower portion of the first portion of the hanger bar 24 may also pass into an opening in a strain relief member 50 that is adjacent to a lower portion of the horrl bridge 26 at its proximal side.
- the speaker wire 46 may thread up through the strain relief member, through the tragel bridge 26, and through the slot in the pintle 36 to the speaker elements 20, 22, as shown in Figure 5 .
- the strain relief member 50 may be made from plastic, for example.
- hanger bar 24 may be operably connected to the speaker elements 20, 22 by crizol bridge 26. Accordingly, when the earphone 10 is correctly positioned on the listener's ear 12, the tragel bridge 26 usually will be adjacent to the tragus of the listener's ear 12, as shown in Figure 1 .
- the tragel bridge 26 may be generally rectangular in shape, as shown in Figures 1-2 , having the gudgeon 34 at its distal end and the knurled knob 48 at is proximal end.
- the tragel bridge 26 may be made of plastic or any other suitable material.
- the hanger bar 24, 124 when earphone 10, 110 is correctly position on the listener's ear 12, the hanger bar 24, 124, as mentioned above, is configured to rest upon the upper external curvature of the listener's ear 12 and behind the upper portion 13 of the auricula of the listener's ear 12.
- the hanger bar 24, 124 may have a shape and size such that the hanger bar 24, 124 is configured to cause the first speaker element 20, 120 and/or the second speaker element 22, 122 to exert a force ( F in shown in Figure 14 ) on the listeners ear.
- the shape of the hanger bar may be described as follows.
- the first portion 30, 130 of the hanger bar 24, 124 may be generally vertical with respect to the second speaker element 22, 122 and/or the listener when the earphone 10, 110 is properly positioned on and/or in the listener's ear.
- the second portion 32, 132 may be generally horizontal likewise with respect to the second speaker element 22, 122 and/or the listener.
- the second portion 32, 132 may also slope or curve downward, back toward second speaker element 22, 122 as the second portion 32, 132 extends away from first portion 30, 130.
- the second portion 32, 132 may also slope or curve horizontally inward, toward second speaker element 22, 122 as the second portion 32, 132 extends away from the first portion 30, 130.
- the second portion 132 may connect to the first portion 130 by an intermediate portion 131 of hanger bar 124.
- Intermediate portion 131 may slope or curve toward second speaker element 122 as intermediate portion 131 transitions from the generally vertical first portion 130 to the generally horizontal second portion 132.
- the intermediate portion 131 serves to offset the first portion 130 from the second portion 132 such that the primary longitudinal axis for the first portion 130 does not intersect the primary longitudinal axis for the second portion 132.
- FIG 14 a top view is shown depicting the forces acting on and exerted by the earphone 110 when the earphone is worn on the listener's ear 12.
- the hanger bar 124 and second speaker element 122 may be adjusted relative to each other (as discussed above) such that the hanger bar 124 causes the second speaker element 122 to exert a force toward and/or on the cavum concha 15 and/or the ear canal 16 of the listener's ear 12 ( F in ).
- the hanger bar 124 is sized and configured such that hanger bar 124 acts as a lever and is forced, by the listeners head 17, generally about fulcrum 18 (defined by a contact point between the second portion 132 of hanger bar 124 and the upper portion 13 of the auricula of the listener's ear 12), to cause the second speaker element 122 to exerts a force F in toward and/or on at least a portion of the listener's ear 12.
- the force exerted by the second speaker element 122 on the listener's ear may be customizable to each listener such that people having different sized ears experience an appropriate amount of force to hold the speaker elements 120, 122 properly in place, independent of gravity and/or any force caused by gravity.
- an in-ear speaker element may be sized and configured such that the element is held in place by forming a snug fit against the walls of the ear canal.
- the second speaker element 122 may be sized such that the speaker element 122 is larger than the ear canal 122. In such embodiments, the second speaker element 122 may resist insertion into the ear canal and thus may be forced out away from the ear canal and/or the cavum concha by the internal walls of the listener's ear.
- the ability of the earphone 110 to supply an appropriate amount of force toward the listener's ear may be of further importance in order to maintain the proper position of the first and/or second speaker elements 120, 122 with respect to the listener's cavum concha and/or ear canal.
- Figure 8 is an exploded view of the earphone 10 according to various embodiments.
- the tragel bridge 26 may comprise front and back pieces 52, 54, connected together by a screw 56, for example.
- other means of connecting the front and back pieces 52, 54 may be utilized, such as a snap fit.
- the tragel bridge 26 may comprise fewer or greater than two separate pieces.
- a tragel bridge may comprise upper and lower pieces 64, 66, as shown in Figure 9 , which shows an exploded view of a horrl bridge according to another embodiment.
- the back piece 54 of the tragel bridge 26 may comprise the flanges 42, 44 that are above and below, respectively, the gudgeon 34.
- the tragel bridge 26 may also comprise, upper and lower proximal flanges 58, 60 that are above and below, respectively, the knurled knob 48.
- the upper proximal flange 58 comprises two pieces, one piece 58a on the front piece 52 of the tragel bridge 26 and one piece 58b on the back piece 54 of the tragel bridge 26.
- a plastic friction O-ring 39 may be disposed between the two pieces 58a, 58b of the upper proximal flange 58.
- the O-ring 39 may reside inside the tragel bridge 26 so that it cannot normally be seen.
- the purpose of the O-ring 39 is to provide friction between the first portion 30 of hanger bar 24 and the flange 58 of the tragel bridge 26 such that rotation of the hanger bar 24 relative to the tragel bridge 26 is resisted and a relative position may be maintained between the hanger bar 24 and the tragel bridge 26.
- the O-ring 39 may provide a resistive biasing force such that the second speaker element 22 is biased toward the listener's ear after the hanger bar 24 is rotated away from tragel bridge 26.
- the second portion 32 of hanger bar 24 may be rotated away from tragel bridge 26 and toward a listener's ear.
- the O-ring 39 may store resistive rotational energy such that the second portion 32 of the hanger bar 24 is biased back towards the tragel bridge 26. Accordingly, the second portion 32 of the hanger bar 24 and the second speaker element 22 may be biased toward each other when worn on a listener's ear.
- the O-ring 39 may be omitted.
- the upper proximal flange 58 may be sized and configured to directly provide rotational friction to the movement of the hanger bar passing therethrough.
- the knob 48 may also comprise a retaining nut 62 on the lower side of the gudgeon 34 that retains the pintle 36 in position.
- Each of the first and second speaker elements 20, 22 may include respective acoustic transducers with dynamic drivers for producing sound waves in the audible range.
- the transducers may produce sound energy having different (although potentially overlapping) frequency ranges.
- the first speaker element 20, being larger than the second speaker element 22 may produce low to mid frequencies in the audible range, and the second speaker element 22 may produce mid to high frequencies.
- the first speaker element 20 may comprise a transducer that is approximately 20mm in diameter, and the second speaker element 22 may be approximately 12mm in diameter.
- the first speaker element 20 may be approximately 20.0mm in diameter and the second speaker element 22 may be approximately 13.5mm in diameter.
- the first speaker element 20 may comprise a low frequency transducer enclosure (LFTE) 70 on its inner portion 28 (i.e., the portion facing the ear 12) that may act as low pass acoustical filter for the first speaker element 20, effectively removing the high frequency component from the output of the driver for the first speaker element 20.
- LFTE low frequency transducer enclosure
- the sound may emanate from the proximal surface 72 of the second speaker element 22.
- the openings of the second speaker element 22 may be concentrated on the inner portion of the second speaker element 22 that extends furthest into cavum concha of the listener's ear 12. More details regarding dual element speakers are described in U.S. Patent Nos. 4,418,248 and 5,333,206 , both titled "DUAL ELEMENT HEADPHONE".
- a sound path may be provided which delivers sound produced by a first transducer 120a of first speaker element 120 into the listener's concha and/or ear canal through second speaker element 122, for example.
- the sound produced by the first transducer 120a may be initially directed into a first cavity 120b defined between an inner wall 170a of LFTE 170 and first transducer 120a. Then, the sound may pass through a channel 123a defined within arm 123 into second cavity 122c, which is defined behind second transducer 122d and in front of backing 125 of the second speaker element 122.
- the sound produced by the first transducer 120a may emanate from the proximal surface 172 of the second speaker element 122 via first sound openings 122a.
- Sound produced by the second transducer 122d may likewise emanate from the proximal surface 172 of the second speaker element 122 via second sound openings 122b.
- the lower frequency sound produced by the first transducer 120a is mixed with the higher frequency sound produced by the second transducer 122d outside the earphone, but within the listener's ear, within his or her concha and/or ear canal, for example.
- the second transducer is dampened from the lower frequency sound waves by sealing the second transducer within the housing of second speaker element 122, generally between cavity 122c and proximal surface 172. Accordingly, the sound path may also be configured to prevent the lower frequency sound wave energy from disturbing the second transducer 122d as the second transducer 122d modulates and creates the higher frequency sounds.
- the first cavity 120b, the channel 123a, the second cavity 122c, and/or the first sound openings 122a may be sized and configured with respect to the first transducer 120a such that they define a sound path that acts as a low pass acoustical filter for the first transducer 120a, effectively removing the high frequency component from the output of the driver for the first transducer 120a. Therefore, because the sound path is selected such that it functions as an acoustical filter, in at least one embodiment, the electrical signal delivered to the first transducer 120a, and the signal delivered to the second transducer 122d, may not require an electronic filter.
- the earphone's electronic components may be subsequently simplified by removing the necessity for an electronic chip or other electronic parts or circuitry that provide signal filtering for the drivers of the transducers.
- This simplification is in-part due to sizing and configuring the path for the sound produced by the first transducer such that the sound path itself, and its defining surfaces, act as a low pass acoustical filter.
- the second speaker element 22 may be connected fixedly to the first speaker element 20. According to other embodiments, the second speaker element 22 may be connected hingedly to the first speaker element 20 so that the second speaker element 22 can be rotated pivotably about a vertical axis of the hinge connecting the first and second speaker elements. That is, according to one embodiment, the second speaker element 22 may be rotated relative to the first speaker element 20 along curve C shown in Figure 4 .
- the second speaker element 22 may be connected to the first speaker element 20 by a pivotable joint with multiple degrees of rotational freedom, such as a knuckle-ball joint or a ball joint.
- the second speaker element 22 may be rotated about any of three perpendicular axes, e.g. allowing for relative pitch, yaw, and/or roll motions, with respect to the first speaker element 20.
- the second speaker element 22 could also be rotated about its horizontal axis (i.e., along curve D in Figure 3 ) and rotated about a horizontal axis at the joint between the first speaker element 20 and the second speaker element 22 (i.e., along curve E in Figure 3 ).
- Such multiple degrees of movement give the user more flexibility to adjust the relative positioning of the speaker elements 20, 22 for increased comfort.
- the first speaker element 20 may be connected to the tragel bridge 26 by a joint, such as a knuckle-ball joint or a ball joint, that allows multiple degrees of rotational freedom but limits or prevents translational movement.
- the first speaker element 20 may be rotated about any of three perpendicular axes, e.g. allowing for relative pitch, yaw, and/or roll motions, with respect to the tragel bridge 26. That way, the user may adjust the rotational orientation of the first speaker element 20 to enhance further the comfort of the earphone 10.
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- 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)
Description
- The present application claims priority to
U.S. provisional application Serial No. 61/054,238 U.S. application Serial No. 29/334,942, filed April 6, 2009 - The present disclosure generally relates to earphones for sound reproduction with high fidelity and more particularly to adjustable dual element in-ear earphones having one transducer for each ear directed to reproducing higher frequencies and one transducer for each ear directed to reproducing lower frequencies.
-
U.S. Patent No. 5,333,206 , titled "DUAL ELEMENT HEADPHONE," discloses a dual element headphone including (a) one transducer that is substantially larger than the cavum concha of a typical human ear and (b) one smaller transducer that fits into the cavum concha. Other than the curvature of the headband, however, the headphones disclosed in this patent are not adjustable. -
U.S. Patent No. 5,729,615 , titled "IN-EAR TYPE EARPHONE HAVING AN EAR HANGER," discloses an earphone having one in-ear speaker element connected to a shaft. The speaker element is pivotably rotatable with respect to the shaft. Further, the shaft is slidably movable along its axis. Thus, the position of the earphone can be raised or lowered vertically by sliding the shaft. Further, the earphone can be rotated in the roll direction, but in the roll direction only. Therefore, while the earphone disclosed in this patent discloses some mechanisms for adjusting the position and orientation of the earphone, the permitted adjustments are limited. In addition, the earphone of this patent only has one speaker element. -
US2007/0104345 discloses an in-ear type earphone with an ear hanger. - The foregoing discussion is intended only to illustrate some of the shortcomings present in the field of the invention at the time, and should not be taken as a disavowal of claim scope.
- In various embodiments, an earphone is provided. In at least one embodiment, the earphone can comprise a first speaker element and a second speaker element extending from the first speaker element, wherein the second speaker element is sized and configured to fit at least partially into a cavum concha of a listener's ear, and wherein the second speaker element is connected to the first speaker element by a pivotable joint; a bridge comprising a first end and a second end, wherein the first speaker element is pivotably connected to the first end of the bridge, and a hanger bar comprising a first portion and a second portion, wherein the first portion is threadingly connected to the second end of the bridge. In these embodiments, the second portion of the hanger bar is configured to rest upon a part of a listener's ear when worn by the listener. The first end of the bridge defines a first axis, wherein the first speaker element may rotate about the first axis. The second end of the bridge defines a second axis. Wherein the first portion of the hanger bar is threadingly connected to the second end of the bridge such that the hanger bar may rotate about the second axis.
- In at least one embodiment, an earphone is provided that can comprise a first speaker element and a second speaker element extending from the first speaker element, a bridge comprising a first end and a second end, wherein the speaker element is pivotably connected to the first end of the bridge, and a hanger bar comprising a first portion and a second portion. In these embodiments, the second end of the bridge comprises a rotatable knob that is accessible to a listener when the earphone is worn by the listener. Further, in these embodiments, the first portion of the hanger bar is operably engaged to the rotatable knob such that rotation of the knob causes the second portion to at least translate relative to the bridge. Additionally, in these embodiments, the second portion of the hanger bar is configured to rest upon a part of the listener's ear when worn by the listener.
- In at least one embodiment, a method of wearing an earphone is provided that can include the steps of providing an earphone comprising a first speaker element and a second speaker element extending from the first speaker element, a bridge comprising a first end and a second end, wherein the first speaker element is pivotably connected to the first end of the bridge and wherein the second end comprises a rotatable knob, and a hanger bar comprising a first portion and a second portion, wherein the first portion is operably engaged to the rotatable knob such that rotation of the knob causes the second portion of the hanger bar to at least translate relative to the bridge.
- In an embodiment the method further comprises the steps of rotating the knob to adjust a distance between the second portion of the hanger bar and the bridge, rotating the first speaker element relative to the bridge, and placing the hanger bar on a part of a listener's ear such that the first speaker element is aligned with the cavum concha of the listener's ear.
- In at least one example an earphone is provided that can comprise a first speaker element and a second speaker element extending from the first speaker element. In these embodiments, the first speaker element can comprise an enclosure having a wall, a first transducer disposed within the enclosure, the first transducer configured to produce a first sound, and a first cavity defined between the wall of the enclosure and the first transducer. Further, in these examples the second speaker element can comprise a housing sized and configured to fit at least partially into a cavum concha of a listener's ear, the housing having a backing and a sound emanating surface, wherein the sound emanating surface includes first sound openings and second sound openings defined therein, a second transducer disposed within the housing, the second transducer configured to produce a second sound that emanates through the second sound openings but not through the first sound openings, and a second cavity defined between the backing of the housing and the second transducer. Additionally, in these examples the first cavity, the second cavity, and the first sound openings define a sound path for the first sound produced by the first transducer such that the first sound travels through the sound path and emanates through the first sound openings but not through the second sound openings.
- In at least one example an earphone is provided that can comprise a second speaker element configured to fit at least partially into a cavum concha of a listener's ear and a hanger bar operably connected to the speaker element. In these embodiments, the hanger bar is configured to rest upon an upper external curvature of a listener's ear and behind an upper portion of an auricula of the listener's ear. Additionally, in these examples the hanger bar has a shape configured to cause the speaker element to exert a force on the listener's ear, independent of gravity.
- This Summary is intended to briefly outline certain embodiments of the subject application. It should be understood that the subject application is not limited to the embodiments disclosed in this Summary, and is intended to cover modifications that are within its scope, as defined by the claims. It should be further understood that this Summary should not be read or construed in a manner that will act to narrow the scope of the claims.
- The above-mentioned and other features and advantages of this invention, and the manner of attaining them, will become more apparent and the invention itself will be better understood by reference to the following description of embodiments of the invention taken in conjunction with the accompanying drawings, wherein:
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Figure 1 depicts a non-limiting embodiment of an earphone being worn by a listener; -
Figure 2 is a side view of the earphone ofFigure 1 ; -
Figure 3 is a front view of the earphone ofFigure 1 ; -
Figure 4 is a top view of the earphone ofFigure 1 ; -
Figures 5-7 shows aspects of a tragel bridge of the earphone ofFigure 1 ; -
Figure 8 is an exploded view of the earphone ofFigure 1 ; -
Figure 9 is an exploded view of a non-limiting embodiment of an earphone; -
Figure 10 is a perspective view of a non-limiting embodiment of an earphone; -
Figure 11 is a front view view of the earphone ofFigure 10 ; -
Figure 12 is a cross-sectional view of speaker elements of the earphone ofFigure 10 , taken along line 12-12 inFigure 11 (any electrical wiring has been omitted for clarity); and -
Figure 13 is an exploded view of the speaker elements of the earphone ofFigure 10 (any electrical wiring has been omitted for clarity). -
Figure 14 is a top view of a force diagram showing the forces acting on and exerted by the earphone ofFigure 10 with respect to a listener's ear. - Certain exemplary embodiments will now be described to provide an overall understanding of the principles of the structure, function, manufacture, and use of the devices and methods disclosed herein. One or more examples of these embodiments are illustrated in the accompanying drawings. Those of ordinary skill in the art will understand that the devices and methods specifically described herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of the various embodiments of the present invention is defined solely by the claims. The features illustrated or described in connection with one exemplary embodiment may be combined with the features of other embodiments. Such modifications and variations are intended to be included within the scope of the present invention.
- In the following description, like reference characters designate like or corresponding parts throughout the several views. In addition, it is to be understood that such terms as "forward," "rearward," "front," "back," "right," "left," "upwardly," "downwardly," and the like are words of convenience and are not to be construed as limiting terms. The description below is for the purpose of describing various embodiments of the invention and is not intended to limit the invention thereto.
- Various embodiments are directed to an adjustable, dual speaker element earphone, wherein one of the speaker elements (the smaller one) is sized to fit into the cavum concha of the listener's ear and the other element (the larger one) is not. The positioning of the speaker elements may be adjustable so that the user can adjust the positioning of the speaker elements for increased comfort. For example, in one embodiment, by virtue of a hinged joint, the larger speaker element may be rotated about a vertical axis of the hinged joint so that the larger speaker element can be rotated towards or away from the listener's ear. In addition, according to various embodiments, the smaller speaker element may be adjusted relative to the larger speaker element. For example, in one embodiment, the smaller speaker element may be connected to the larger speaker element by a knuckle-ball joint, a ball joint, or some other similar pivotable joint, that provides multiple degrees of rotational freedom but limits or prevents translational movement for the smaller speaker element relative to the larger speaker element.
- In addition, the earphone may comprise a hanger bar that the listener uses to position the earphone on the listener's ear. In that connection, the hanger bar may comprise a horizontal section that rests upon the upper external curvature of the listener's ear behind the upper portion of the auricula (or pinna). The earphone may comprise a knurled knob that allows the user to adjust finely the distance between the horizontal section of the hanger bar and the speaker elements, thereby providing, in such embodiments, another measure of adjustability for the user.
- In at least one embodiment, an adjustable, dual speaker element earphone is provided, wherein one of the speaker elements is sized to fit into the cavum concha of the listener's ear.
Figures 1 through 4 illustrate one embodiment of theearphone 10.Figure 1 is a perspective view of theearphone 10 being worn on theear 12 of ahuman listener 14;Figure 2 is a side view of theearphone 10;Figure 3 is a front view of the theearphone 10; andFigure 4 is a top view of theearphone 10. According to the illustrated embodiment, theearphone 10 comprises, among other elements, afirst speaker element 20, a second, in-ear speaker element 22, ahanger bar 24, and atragel bridge 26. - The terms "proximal" and "distal" are used herein with reference to the listener's head. Accordingly, the proximal components of the
earphone 10 are toward the listener's nose, and the distal components are torward the rear of the listener's head. Also, the spatial terms "vertical" and horizontal" are used herein with respect to the drawings. These terms are not intended to be limiting or absolute. - The
first speaker element 20 may be generally circular, as shown in the figures, and may be sized large enough that it does not fit into the cavum concha of the vast majority ofhuman listeners 14. Thesecond speaker element 22 also may be generally circular in shape, and may be extend outwardly from aninner portion 28 of thefirst speaker element 20. According to one embodiment, thesecond speaker element 22 may be rigidly fixed to theinner surface 28 of thefirst speaker element 20 so that there is no relative movement between the first and second speaker elements. In such an embodiment, thesecond speaker element 22 may be connected to thefirst speaker element 20 by anarm 23 such that thesecond speaker element 20 extends generally perpendicularly from thefirst speaker element 20. According to various embodiments, theinner surface 28 of thefirst speaker element 20, thearm 23, and thebacking 25 of thesecond speaker element 22 may be made from a single piece of injection molded plastic so that their positions are fixed. - The
hanger bar 24, as shown in the figures, may be substantially L-shaped, having (i) a first,proximal portion 30 that extends generally vertically from thetragel bridge 26, and (ii) a second,distal portion 32, generally perpendicular to thefirst portion 30, that extends horizontally away from thefirst portion 30 and is designed to rest upon the upper external curvature of theear 12 behind theupper portion 13 of the auricula (or pinna). Thehanger bar 24 may have a circular cross-section, and may be made out of plastic, metal, or any other suitable material. - The
tragel bridge 26 includes a vertically oriented,distal gudgeon 34 fixedly connected to thefirst speaker element 20 at a proximal edge of thefirst speaker element 20. Thegudgeon 34 and thetragel bridge 26 may be generally tangential to a proximal edge of the circularfirst speaker element 20. A slotted retaining bolt orpintle 36 is inserted through the opening defined by thegudgeon 34 to connect hingedly thefirst speaker element 20 to thetragel bridge 26. That way, thefirst speaker element 20 can be rotated about the vertical axis of thegudgeon 34 so that thefirst speaker element 20 can be rotated toward or away from the listener'sear 12. Thegudgeon 34 may be made from metal or plastic, for example. In one embodiment, an outerperipheral backing 42 of thefirst speaker element 20 and thegudgeon 34 may be made from an integrated piece of injection-molded plastic. The height of thetragel bridge 26 may be less than the diameter of thefirst speaker element 20. For example, the height of thetragel bridge 26 may be approximately one-half the diameter of thefirst speaker element 20. Alternatively, referring toFigures 10-11 ,tragel bridge 126 may be larger than one-half the diameter offirst speaker element 120, but less than the diameter of thefirst speaker element 120. In such embodiments,cylindrical knurled knob 148 may be larger thanknob 48, described above, such that a listener may have a larger surface area with which to contact and rotateknob 148 to adjusthanger bar 124. -
Figures 5-7 show aspects of thetragel bridge 26 according to various embodiments.Figure 5 is a section view of thetragel bridge 26 showing thegudgeon 34 and thepintle 36. InFigures 6 and 7 , thetragel bridge 26 is omitted so that other components in thetragel bridge 26 can be viewed. As shown in these figures, a plastic friction O-ring 38 may be disposed between thehead 40 of thepintle 36 and the upper portion of thegudgeon 34. The O-ring 38 may reside inside thetragel bridge 26 so that it cannot normally be seen. The purpose of the O-ring 38 is to provide friction between thegudgeon 34 and thepintle 36 such that rotation of thefirst speaker element 20 relative to thetragel bridge 26 is resisted and a relative position may be maintained between thefirst speak element 20 and thetragel bridge 26. Thetragel bridge 26 has upper andlower flanges gudgeon 34, respectively. Thepintle 36 is inserted through theupper flange 42, thegudgeon 34, and thelower flange 44, to thereby hingedly connect thegudgeon 34 to thetragel bridge 26. - As shown in
Figures 5-7 , thepintle 36 may include a lower slot through which aspeaker wire 46 may be feed into thetragel bridge 26 and to the first andsecond speaker elements - As shown in
Figures 1-7 , thetragel bridge 26 may also include acylindrical knurled knob 48 vertically oriented at a proximal end of thetragel bridge 26. Theknurled knob 48 may define a vertical opening therethrough, with threads on the interior of theknurled knob 48 around the opening. The lower end of thefirst portion 30 of thehanger bar 24 may have corresponding threads, as shown inFigure 5 , which mate with the threads of theknurled knob 48. Rotation of theknurled knob 48 about its vertical axis thereby causes thehorizontal portion 32 of thehanger bar 24 to be adjusted vertically with respect to the tragel bridge 26 (and hence thespeaker elements 20, 22). That is, by rotating theknurled knob 48, a user can adjust the distance H shown inFigure 2 , which controls the relative positioning of thespeaker elements tragel bridge 26 to thesecond portion 32 of thehanger bar 24, i.e., the portion of thehanger bar 24 that rests upon the listener's ear, to thereby optimize or enhance the fit of theearphone 10 for the user. In at least one embodiment, the threads of thehanger bar 24 and theknurled knob 48 may be relatively fine, to provide fine adjustment for the user. Alternatively, in at least one embodiment, the threads of thehanger bar 24 and theknurled knob 48 may be relatively coarse, to provide coarse adjustment for the user. Theknurled knob 48 may be made from plastic or metal, for example. - Further, in at least one embodiment, the
knob 48 may be rotated relative to thehanger bar 24 to the point where the threads of thehanger bar 24 disengage from theknurled knob 48. Alternatively, in at least one embodiment, thehanger bar 24 may be rotated relative to theknob 48 such that the threads ofhanger bar 24 disengage from theknob 48. In such embodiments, another hanger bar (not shown), having different dimensions of afirst portion 30 and/or asecond portion 32, may then be inserted into thetragel bridge 26 atknob 48. Accordingly, different sized hanger bars may be provided to fit a variety of people having different sized ears. - According to various embodiments, as shown in
Figure 5 , the threads of the lower portion of the first portion of thehanger bar 24 may also pass into an opening in astrain relief member 50 that is adjacent to a lower portion of thetragel bridge 26 at its proximal side. Thespeaker wire 46 may thread up through the strain relief member, through thetragel bridge 26, and through the slot in thepintle 36 to thespeaker elements Figure 5 . Thestrain relief member 50 may be made from plastic, for example. - In various embodiments, referring to
Figures 1-4 ,hanger bar 24 may be operably connected to thespeaker elements tragel bridge 26. Accordingly, when theearphone 10 is correctly positioned on the listener'sear 12, thetragel bridge 26 usually will be adjacent to the tragus of the listener'sear 12, as shown inFigure 1 . Thetragel bridge 26 may be generally rectangular in shape, as shown inFigures 1-2 , having thegudgeon 34 at its distal end and theknurled knob 48 at is proximal end. Thetragel bridge 26 may be made of plastic or any other suitable material. - Further, with reference to
Figures 1 and14 , whenearphone ear 12, thehanger bar ear 12 and behind theupper portion 13 of the auricula of the listener'sear 12. According to various embodiments, thehanger bar hanger bar first speaker element second speaker element Figure 14 ) on the listeners ear. - Referring now to
Figures 1-4 ,10-11 , and14 , in various embodiments, the shape of the hanger bar may be described as follows. Thefirst portion hanger bar second speaker element earphone second portion second speaker element second portion second speaker element second portion first portion second portion second speaker element second portion first portion Figure 11 , thesecond portion 132 may connect to thefirst portion 130 by anintermediate portion 131 ofhanger bar 124.Intermediate portion 131 may slope or curve towardsecond speaker element 122 asintermediate portion 131 transitions from the generally verticalfirst portion 130 to the generally horizontalsecond portion 132. In other words, theintermediate portion 131 serves to offset thefirst portion 130 from thesecond portion 132 such that the primary longitudinal axis for thefirst portion 130 does not intersect the primary longitudinal axis for thesecond portion 132. - Focusing now on
Figure 14 , a top view is shown depicting the forces acting on and exerted by theearphone 110 when the earphone is worn on the listener'sear 12. In such embodiments, and without the need for gravitational assistance, thehanger bar 124 andsecond speaker element 122 may be adjusted relative to each other (as discussed above) such that thehanger bar 124 causes thesecond speaker element 122 to exert a force toward and/or on thecavum concha 15 and/or theear canal 16 of the listener's ear 12 (Fin ). In other words, thehanger bar 124 is sized and configured such thathanger bar 124 acts as a lever and is forced, by the listeners head 17, generally about fulcrum 18 (defined by a contact point between thesecond portion 132 ofhanger bar 124 and theupper portion 13 of the auricula of the listener's ear 12), to cause thesecond speaker element 122 to exerts a force Fin toward and/or on at least a portion of the listener'sear 12. - Mathematically, the force exerted toward and/or on the
cavum concha 15 and/or the ear canal 16 (Fin ) can be determined as follows. At equilibrium and aboutfulcrum 18, the torque exerted by the listener'shead 17 on thesecond portion 132 of hanger bar 124 (Fh · Dh ) equals the torque experienced by thefirst portion 130 of hanger bar 124 (Fe · De ). Accordingly, the force balance equation yields the following: -
-
-
- Solving for the force exerted by the
second speaker element 122 into thecavum concha 15 and/or ear canal 16 (Fin ) yields:
Making substitutions yields an equation for the force of thesecond speaker element 122 into the ear cannel (Fin ) which contains the following as variables: the force exerted from the head on the earphone 110 (Fh), the user defined distances (Dh, De , and Dl ), and the user configured angles (α and θ). This equation is as follows: - Accordingly, the force exerted by the
second speaker element 122 on the listener's ear (Fin ) may be customizable to each listener such that people having different sized ears experience an appropriate amount of force to hold thespeaker elements - In various earphones, an in-ear speaker element may be sized and configured such that the element is held in place by forming a snug fit against the walls of the ear canal. However, in various embodiments, the
second speaker element 122 may be sized such that thespeaker element 122 is larger than theear canal 122. In such embodiments, thesecond speaker element 122 may resist insertion into the ear canal and thus may be forced out away from the ear canal and/or the cavum concha by the internal walls of the listener's ear. Accordingly, the ability of theearphone 110 to supply an appropriate amount of force toward the listener's ear may be of further importance in order to maintain the proper position of the first and/orsecond speaker elements -
Figure 8 is an exploded view of theearphone 10 according to various embodiments. As shown inFigure 8 , thetragel bridge 26 may comprise front andback pieces screw 56, for example. In other embodiment, other means of connecting the front andback pieces tragel bridge 26 may comprise fewer or greater than two separate pieces. In addition, rather than having front and back pieces as shown inFigure 8 , a tragel bridge may comprise upper andlower pieces Figure 9 , which shows an exploded view of a tragel bridge according to another embodiment. - Referring back to the embodiment of
Figure 8 , theback piece 54 of thetragel bridge 26 may comprise theflanges gudgeon 34. Thetragel bridge 26 may also comprise, upper and lowerproximal flanges knurled knob 48. In the illustrated embodiment, the upperproximal flange 58 comprises two pieces, onepiece 58a on thefront piece 52 of thetragel bridge 26 and onepiece 58b on theback piece 54 of thetragel bridge 26. In various embodiments, a plastic friction O-ring 39 may be disposed between the twopieces proximal flange 58. The O-ring 39 may reside inside thetragel bridge 26 so that it cannot normally be seen. The purpose of the O-ring 39 is to provide friction between thefirst portion 30 ofhanger bar 24 and theflange 58 of thetragel bridge 26 such that rotation of thehanger bar 24 relative to thetragel bridge 26 is resisted and a relative position may be maintained between thehanger bar 24 and thetragel bridge 26. Further, the O-ring 39 may provide a resistive biasing force such that thesecond speaker element 22 is biased toward the listener's ear after thehanger bar 24 is rotated away fromtragel bridge 26. For example, thesecond portion 32 ofhanger bar 24 may be rotated away fromtragel bridge 26 and toward a listener's ear. Then, after the rotation is finished, the O-ring 39 may store resistive rotational energy such that thesecond portion 32 of thehanger bar 24 is biased back towards thetragel bridge 26. Accordingly, thesecond portion 32 of thehanger bar 24 and thesecond speaker element 22 may be biased toward each other when worn on a listener's ear. Alternatively, in various embodiments, the O-ring 39 may be omitted. In such embodiments, the upperproximal flange 58 may be sized and configured to directly provide rotational friction to the movement of the hanger bar passing therethrough. In any case, because of the rotational friction provided by either O-ring 39 and/orflange 58, a user may rotate theknob 48 such that thesecond portion 32 of thehanger bar 30 does not substantially rotate (because of the friction), but translates with respect to thetragel bridge 26. Thetragel bridge 26 may also comprise a retainingnut 62 on the lower side of thegudgeon 34 that retains thepintle 36 in position. - Each of the first and
second speaker elements first speaker element 20, being larger than thesecond speaker element 22, may produce low to mid frequencies in the audible range, and thesecond speaker element 22 may produce mid to high frequencies. According to at least one embodiment, thefirst speaker element 20 may comprise a transducer that is approximately 20mm in diameter, and thesecond speaker element 22 may be approximately 12mm in diameter. Alternatively, according to at least one embodiment, thefirst speaker element 20 may be approximately 20.0mm in diameter and thesecond speaker element 22 may be approximately 13.5mm in diameter. - As shown in
Figures 3 and 4 , thefirst speaker element 20 may comprise a low frequency transducer enclosure (LFTE) 70 on its inner portion 28 (i.e., the portion facing the ear 12) that may act as low pass acoustical filter for thefirst speaker element 20, effectively removing the high frequency component from the output of the driver for thefirst speaker element 20. In addition, the sound may emanate from theproximal surface 72 of thesecond speaker element 22. Additionally, the openings of thesecond speaker element 22 may be concentrated on the inner portion of thesecond speaker element 22 that extends furthest into cavum concha of the listener'sear 12. More details regarding dual element speakers are described inU.S. Patent Nos. 4,418,248 and5,333,206 , both titled "DUAL ELEMENT HEADPHONE". - Further, in at least one embodiment, referring now to
Figures 12-13 , a sound path may be provided which delivers sound produced by afirst transducer 120a offirst speaker element 120 into the listener's concha and/or ear canal throughsecond speaker element 122, for example. In such embodiments, the sound produced by thefirst transducer 120a may be initially directed into afirst cavity 120b defined between aninner wall 170a ofLFTE 170 andfirst transducer 120a. Then, the sound may pass through achannel 123a defined withinarm 123 intosecond cavity 122c, which is defined behindsecond transducer 122d and in front of backing 125 of thesecond speaker element 122. From there, the sound produced by thefirst transducer 120a may emanate from theproximal surface 172 of thesecond speaker element 122 viafirst sound openings 122a. Sound produced by thesecond transducer 122d may likewise emanate from theproximal surface 172 of thesecond speaker element 122 viasecond sound openings 122b. Accordingly, the lower frequency sound produced by thefirst transducer 120a is mixed with the higher frequency sound produced by thesecond transducer 122d outside the earphone, but within the listener's ear, within his or her concha and/or ear canal, for example. Mixing the higher and lower frequency sound waves outside the earphone may be beneficial by preventing the lower frequency sounds produced by thefirst transducer 120a from interfering with the production of the higher frequency sounds coming from the second transducer. Therefore, in some embodiments, the second transducer is dampened from the lower frequency sound waves by sealing the second transducer within the housing ofsecond speaker element 122, generally betweencavity 122c andproximal surface 172. Accordingly, the sound path may also be configured to prevent the lower frequency sound wave energy from disturbing thesecond transducer 122d as thesecond transducer 122d modulates and creates the higher frequency sounds. - Additionally, again with reference to
Figures 12-13 , thefirst cavity 120b, thechannel 123a, thesecond cavity 122c, and/or thefirst sound openings 122a may be sized and configured with respect to thefirst transducer 120a such that they define a sound path that acts as a low pass acoustical filter for thefirst transducer 120a, effectively removing the high frequency component from the output of the driver for thefirst transducer 120a. Therefore, because the sound path is selected such that it functions as an acoustical filter, in at least one embodiment, the electrical signal delivered to thefirst transducer 120a, and the signal delivered to thesecond transducer 122d, may not require an electronic filter. In other words, the earphone's electronic components may be subsequently simplified by removing the necessity for an electronic chip or other electronic parts or circuitry that provide signal filtering for the drivers of the transducers. This simplification is in-part due to sizing and configuring the path for the sound produced by the first transducer such that the sound path itself, and its defining surfaces, act as a low pass acoustical filter. - In some of the above-described embodiments, the
second speaker element 22 may be connected fixedly to thefirst speaker element 20. According to other embodiments, thesecond speaker element 22 may be connected hingedly to thefirst speaker element 20 so that thesecond speaker element 22 can be rotated pivotably about a vertical axis of the hinge connecting the first and second speaker elements. That is, according to one embodiment, thesecond speaker element 22 may be rotated relative to thefirst speaker element 20 along curve C shown inFigure 4 . - According to yet other embodiments, the
second speaker element 22 may be connected to thefirst speaker element 20 by a pivotable joint with multiple degrees of rotational freedom, such as a knuckle-ball joint or a ball joint. In other words, thesecond speaker element 22 may be rotated about any of three perpendicular axes, e.g. allowing for relative pitch, yaw, and/or roll motions, with respect to thefirst speaker element 20. In that case, in addition to being able to rotate pivotably along line C inFigure 4 , thesecond speaker element 22 could also be rotated about its horizontal axis (i.e., along curve D inFigure 3 ) and rotated about a horizontal axis at the joint between thefirst speaker element 20 and the second speaker element 22 (i.e., along curve E inFigure 3 ). Such multiple degrees of movement give the user more flexibility to adjust the relative positioning of thespeaker elements - In addition, in other embodiments, the
first speaker element 20 may be connected to thetragel bridge 26 by a joint, such as a knuckle-ball joint or a ball joint, that allows multiple degrees of rotational freedom but limits or prevents translational movement. In other words, thefirst speaker element 20 may be rotated about any of three perpendicular axes, e.g. allowing for relative pitch, yaw, and/or roll motions, with respect to thetragel bridge 26. That way, the user may adjust the rotational orientation of thefirst speaker element 20 to enhance further the comfort of theearphone 10. - The examples presented herein are intended to illustrate potential and specific implementations of the embodiments. It can be appreciated that the examples are intended primarily for purposes of illustration for those skilled in the art. No particular aspect or aspects of the examples is/are intended to limit the scope of the described embodiments.
- It is to be understood that the figures and descriptions of the embodiments have been simplified to illustrate elements that are relevant for a clear understanding of the embodiments. Because such elements are well known in the art and because they do not facilitate a better understanding of the embodiments, a discussion of such elements is not provided herein.
- While various embodiments have been described herein, it should be apparent that various modifications, alterations, and adaptations to those embodiments may occur to persons skilled in the art with attainment of at least some of the advantages. The disclosed embodiments are intended to include all such modifications, alterations, and adaptations without departing from the scope of the embodiments as set forth herein.
Claims (19)
- An earphone (10), comprising:a first speaker element (20) and a second speaker element (22) extending from the first speaker element (20), wherein the second speaker element (22) is sized and configured to fit at least partially into a cavum concha of a listener's ear (12), and wherein the second speaker element (22) is connected to the first speaker element (20) by a pivotable joint;a bridge (26) comprising a first end and a second end, wherein the first speaker element is pivotably connected to the first end of the bridge; anda hanger bar (24) comprising a first portion (30) and a second portion (32), wherein the first portion (30) is threadingly connected to the second end of the bridge, wherein the second portion (32) of the hanger bar (24) is configured to rest upon a part of the listener's ear (12) when the earphone (10) is worn by the listener (14);the first end of the bridge defining a first axis, wherein the first speaker element (20) may rotate about the first axis, wherein the second end of the bridge defines a second axis, and wherein the first portion of the hanger bar (24) is threadingly connected to the second end of the bridge (26) such that the hanger bar (24) may rotate about the second axis.
- The earphone of claim 1, wherein the bridge (26) further comprises a rotatable knob (48) that is accessible to the listener (14), wherein the knob (48) threadingly engages the first portion (30) of the hanger bar (24) such that rotation of the knob (48) causes the second portion (32) of the hanger bar (24) to at least translate relative to the bridge (26).
- The earphone of claim 2, wherein the second portion (32) of the hanger bar (24) and the bridge (26) are separated by a distance (H) and wherein the rotatable knob (48) is configured such that rotation of the knob (48) causes the distance (H) to change.
- The earphone of any preceding claim, wherein the pivotable joint is configured to provide three degrees of rotational freedom to the second speaker element (22) in relation to the first speaker element (20).
- The earphone of any preceding claim, wherein the pivotable joint is a ball joint.
- The earphone of any preceding claim, wherein the first speaker element (20) is configured to produce a first sound in a first predetermined direction and the second speaker element (22) is configured to produce a second sound in a second predetermined direction, wherein the first predetermined direction is transverse to the second predetermined direction.
- The earphone of any preceding claim, wherein the first speaker element (20) is pivotably connected to the first end of the bridge (26) by a ball joint.
- The earphone of any of claims 1-6, wherein the first speaker element (20) is pivotably connected to the first end of the bridge (26) by a hinged joint.
- The earphone of claim 8, wherein the hinged joint defines said first axis, the first speaker element (20) may only rotate about the first axis, and the hanger bar (24) may only rotate about the second axis.
- The earphone of claim 9 as dependant on claim 2 or claim 3, wherein the hinged joint defines said first axis, wherein the first speaker element (20) may only rotate about the first axis, wherein the rotatable knob (48) defines said second axis, and wherein the hanger bar (24) is operably engaged to the rotatable knob (48) such that the hanger bar (24) may only rotate about the second axis.
- The earphone of claim 2, wherein the rotatable knob (48) defines said second axis, and wherein the hanger bar (24) is operably engaged to the rotatable knob (48) such that the hanger bar (24) may rotate about the second axis.
- The earphone of any preceding claim, wherein said first axis and said second axis are substantially parallel.
- The earphone of any preceding claim, wherein said first axis and said second axis are not collinear.
- The earphone of claim 1, wherein the first portion (30) of the hanger bar (24) comprises threads such that relative rotation of the second portion (32) of the hanger bar (24) to the bridge (26) causes the second portion (32) of the hanger bar (24) to at least translate relative to the bridge (26).
- The earphone of claim 1, wherein the bridge (26) is configured to rest adjacent to a tragus of the listener's ear (12) when the earphone (10) is worn by the listener (12).
- The earphone of claim 1, further comprising an O-ring (39) disposed within the bridge (26), wherein the first portion (30) of the hanger bar (24) passes through the O-ring (39), wherein the O-ring (39) is sized and configured to provide rotational friction to the first portion (30) of the hanger bar (24) passing therethrough.
- A method of wearing an earphone, the method comprising the steps of:providing an earphone (10) comprising:a first speaker element (20) and a second speaker element (22) extending from the first speaker element (20), wherein the second speaker element (22) is sized and configured to fit at least partially into a cavum concha of a listener's ear (12);a bridge (26) comprising a first end and a second end, wherein the speaker element (20) is pivotably connected to the first end of the bridge (26), andwherein the second end comprises a rotatable knob (48); anda hanger bar (24) comprising a first portion (30) and a second portion (32), wherein the first portion (30) is operably engaged to the rotatable knob (48) such that rotation of the knob (48) causes the second portion (32) of the hanger bar (24) to at least translate relative to the bridge (26);rotating the knob (48) to adjust a distance (H) between the second portion (32) of the hanger bar (24) and the bridge (26);rotating the speaker element (20) relative to the bridge (26);resting the hanger bar (24) on part of a listener's ear (12) such that the speaker element (20) is aligned with the cavum concha of the listener's ear (12); andplacing the second speaker element (22) at least partially into the cavum concha of the listener's ear (12).
- The method of claim 17, wherein the step of resting further comprises resting the hanger bar (24) on a portion of a listener's ear (12) such that the bridge (26) sits adjacent to the tragus of the listener's ear (12).
- The method of claim 17, further comprising the step of rotating the second portion (32) of the hanger bar (24) relative to the bridge (26).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5423808P | 2008-05-19 | 2008-05-19 | |
US33494209A | 2009-04-06 | 2009-04-06 | |
PCT/US2009/044340 WO2009143055A1 (en) | 2008-05-19 | 2009-05-18 | Adjustable, dual speaker element in-ear phone |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2277321A1 EP2277321A1 (en) | 2011-01-26 |
EP2277321A4 EP2277321A4 (en) | 2013-01-09 |
EP2277321B1 true EP2277321B1 (en) | 2015-08-26 |
Family
ID=43384481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09751283.4A Not-in-force EP2277321B1 (en) | 2008-05-19 | 2009-05-18 | Adjustable, dual speaker element in-ear phone |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2277321B1 (en) |
KR (1) | KR101521320B1 (en) |
DK (1) | DK2277321T3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE538538C2 (en) * | 2015-05-15 | 2016-09-13 | Zound Ind Int Ab | A headset with a pair of listening devices and a behind the head resilient cord |
SE538540C2 (en) * | 2015-05-15 | 2016-09-13 | Zound Ind Int Ab | An ear support audio listening arrangement |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0379678U (en) * | 1989-12-08 | 1991-08-14 | ||
JP3079678B2 (en) | 1991-09-20 | 2000-08-21 | 住友化学工業株式会社 | Process for producing octahydrocoumarins |
US5333206A (en) * | 1992-03-18 | 1994-07-26 | Koss Corporation | Dual element headphone |
CA2194641C (en) * | 1996-12-28 | 2005-05-03 | Bill Yang | In-ear type earphone having an ear hanger |
US20040125976A1 (en) * | 2002-12-30 | 2004-07-01 | Reneker Brian Scott | Headphones or earmuffs with a user operated mechanical device that controls the volume of exterior sound entering the ear of the user |
TWI282246B (en) * | 2005-11-09 | 2007-06-01 | Cotron Corp | In-ear type earphone having an ear hanger |
US7613292B2 (en) * | 2006-09-29 | 2009-11-03 | Sony Ericsson Mobile Communications Ab | Adjustable earpiece |
-
2009
- 2009-05-18 EP EP09751283.4A patent/EP2277321B1/en not_active Not-in-force
- 2009-05-18 DK DK09751283.4T patent/DK2277321T3/en active
- 2009-05-18 KR KR1020107027688A patent/KR101521320B1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
"Introduction to the Design and Behavior of Bolted Joints, Fourth Edition Non-Gasketed Joints", 30 December 2007, CRC PRESS, ISBN: 978-0-84-938176-8, article JOHN H. BICKFORD: "Threads and Their Strength", XP055147864 * |
Also Published As
Publication number | Publication date |
---|---|
EP2277321A1 (en) | 2011-01-26 |
KR101521320B1 (en) | 2015-06-16 |
KR20110021868A (en) | 2011-03-04 |
EP2277321A4 (en) | 2013-01-09 |
DK2277321T3 (en) | 2015-10-26 |
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