SYNCED TELESCOPIC HEADPHONES

Description

FIELD

[0001] The described embodiments relate generally to various headphone features. More particularly, the various features help improve the overall user experience by incorporating an array of sensors and new mechanical features into the headphones.BACKGROUND

[0002] Headphones have now been in use for over 100 years, but the design of the mechanical frames used to hold the earpieces against the ears of a user have remained somewhat static. For this reason, some over-head headphones are difficult to easily transport without the use of a bulky case or by wearing them conspicuously about the neck when not in use. Conventional interconnects between the earpieces and band often use a yoke that surrounds the periphery of each earpiece, which adds to the overall bulk of each earpiece. Furthermore, headphones users are required to manually verify that the correct earpieces are aligned with the ears of a user any time the user wishes to use the headphones. Consequently, improvements to the aforementioned deficiencies are desirable.

[0003] WO 2016 / 002150 A1 is disclosing headphones with a headband, comprising a 1st slider which is provided in the one end side of the said headband and is slid with respect to the said headband; a 2nd slider which is provided in the other end side of the said headband, and is slid with respect to the said headband; the connection part to which a said 1st slider and a said 2nd slider are connected to, and a said 2nd slider is slid in response to the sliding motion of a said 1st slider whereby the sliders can be configured as pulleys.

[0004] Document GB2103902 discloses a headband for headphones, the headband, or at least a substantial part thereof, being collapsible and comprising a plurality of pairs of elongate members, each pair being arranged such that first sides of the first and second members are facing, the first and second members of each pair being connected at a point remote from their ends so as to be pivotable about an axis passing through the connection point perpendicular to the first sides of the first and second members, the pairs of elongate members being connected such that an end portion of the first side of the first member of each pair faces an end portion of the first side of the second member of an adjacent pair and is connected thereto so as to be pivotable about an axis passing perpendicularly through the said end portions, the arrangement being such that the band has two free ends, each elongate member being curved along its length so that the first side of each first member forms the radially inner surface thereof while the first side of each second member forms the radially outer surface thereof.SUMMARY

[0005] The invention is defined by the independent claims. Preferred embodiments are described by the dependent claims. This disclosure describes several improvements on circumaural and supra-aural headphone frame designs.

[0006] Headphones according to claim 1 are disclosed.

[0007] Other aspects and advantages of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings which illustrate, by way of example, the principles of the described embodiments.BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The disclosure will be readily understood by the following detailed description in conjunction with the accompanying drawings, wherein like reference numerals designate like structural elements, and in which: FIG. 1A shows a front view of an exemplary set of over ear or on-ear headphones; FIG. 1B shows headphone stems extending different distances from a headband assembly; FIG. 2A shows a perspective view of a first side of headphones with synchronized headphone stems; FIGS. 2B - 2C show cross-sectional views of the headphones depicted in FIG. 2A in accordance with section lines A-A and B-B, respectively; FIG. 2D shows a perspective view of an opposite side of the headphones depicted in FIG. 2D; FIG. 2E shows a cross-sectional view of the headphones depicted in FIG. 2D in accordance with section line C-C; FIGS. 2F - 2G show perspective views of a second side of headphones with synchronized headphone stems and a unitary spring band; FIGS. 2H - 2I show cross-sectional views of the headphones depicted in FIGS. 2F - 2G in accordance with section lines D-D and E-E, respectively; FIGS. 3A - 3B show a top view of an earpiece synchronization assembly; FIGS. 3C - 3D show a flattened schematic view of another earpiece synchronization system similar to the one depicted in FIGS. 3A - 3B; FIGS. 3E - 3F show cutaway views of headphones 360 that are suitable for incorporation of either one of the earpiece synchronization systems depicted in FIGS. 3A - 3D; FIGS. 3G - 3H show perspective views of the earpiece synchronization system depicted in FIGS. 3A - 3B in retracted and extended positions as well as a data synchronization cable; FIG. 3I shows a portion of a canopy structure and how an earpiece synchronization system can be routed through reinforcement members of the canopy structure that includes; and FIGS. 4A - 4B show another way in which to limit the range of motion of a pair of headphones using a low spring-rate band. DETAILED DESCRIPTION

[0009] Headphones have been in production for many years, but numerous design problems remain. For example, the functionality of headbands associated with headphones has generally been limited to a mechanical connection functioning only to maintain the earpieces of the headphones over the ears of a user and provide an electrical connection between the earpieces. The headband tends to add substantially to the bulk of the headphones, thereby making storage of the headphones problematic. Stems connecting the headband to the earpieces that are designed to accommodate adjustment of an orientation of the earpieces with respect to a user's ears also add bulk to the headphones. Stems connecting the headband to the earpieces that accommodate elongation of the headband generally allow a central portion of the headband to shift to one side of a user's head. This shifted configuration can look somewhat odd and depending on the design of the headphones can also make the headphones less comfortable to wear.

[0010] While some improvements such as wireless delivery of media content to the headphones has alleviated the problem of cord tangle, this type of technology introduces its own batch of problems. For example, because wireless headphones require battery power to operate, a user who leaves the wireless headphones turned on could inadvertently exhaust the battery of the wireless headphones, making them unusable until a new battery can be installed or for the device to be recharged. Another design problem with many headphones is that a user must generally figure out which earpiece corresponds to which ear to prevent the situation in which the left audio channel is presented to the right ear and the right audio channel is presented to the left ear.

[0011] A solution to the unsynchronized positioning of the earpieces is to incorporate an earpiece synchronization component taking the form of a mechanical mechanism disposed within the headband that synchronizes the distance between the earpieces and respective ends of the headband. The earpiece synchronization component according to the invention is a cable extending between both stems that is configured to synchronize the movement of the earpieces. The cable can be arranged in a loop where different sides of the loop are attached to respective stems of the earpieces so that motion of one earpiece away from the headband causes the other earpiece to move the same distance away from the opposite end of the headband. Similarly, pushing one earpiece towards one side of the headband translates the other earpiece the same distance towards the opposite side of the headband.

[0012] One solution to the conventional bulky connections between headphones stems and earpieces is to use a spring-driven pivot mechanism to control motion of the earpieces with respect to the band. The spring-driven pivot mechanism can be positioned near the top of the earpiece, allowing it to be incorporated within the earpiece instead of being external to the earpiece. In this way, pivoting functionality can be built into the earpieces without adding to the overall bulk of the headphones. Different types of springs can be utilized to control the motion of the earpieces with respect to the headband. Specific examples that include torsional springs and leaf springs are described in detail below. The springs associated with each earpiece can cooperate with springs within the headband to set an amount of force exerted on a user wearing the headphones. In some embodiments, the springs within the headband can be low spring-rate springs configured to minimize the force variation exerted across a large spectrum of users with different head sizes.

[0013] These and other embodiments are discussed below with reference to FIGS. 1 - 17B; however, those skilled in the art will readily appreciate that the detailed description given herein with respect to these figures is for explanatory purposes only and should not be construed as limiting.Symmetric Telescoping Earpieces

[0014] FIG. 1A shows a front view of an exemplary set of over ear or on-ear headphones 100. Headphones 100 includes a band 102 that interacts with stems 104 and 106 to allow for adjustability of the size of headphones 100. In particular, stems 104 and 106 are configured to shift independently with respect to band 102 in order to accommodate multiple different head sizes. In this way, the position of earpieces 108 and 110 can be adjusted to position earpieces 108 and 110 directly over the ears of a user. Unfortunately, as can be seen in FIG. 1B, this type of configuration allows stems 104 and 106 to become mismatched with respect to band 102. The configuration shown in FIG. 1B can be less comfortable for a user and additionally lack cosmetic appeal. To remedy these issues, the user would be forced to manually adjust stems 104 and 106 with respect to band 102 in order to achieve a desirable look and comfortable fit. FIGS. 1A - 1B also show how stems 104 and 106 extend down to a central portion of earpieces 108 in order to allow earpieces 108 to rotate to accommodate the curvature of a user's head. As mentioned above the portions of stems 104 and 106 that extend down around earpieces 108 increase the diameters of earpieces 108.

[0015] FIG. 2A shows a perspective view of headphones 200 with a headband 202 configured to solve the problems depicted in FIGS. 1A-1B. Headband 202 is depicted without a cosmetic covering to reveal internal features. In particular, headband 202 can include a wire loop 204 configured to synchronize the movement of stems 206 and 208. Wire guides 210 can be configured to maintain a curvature of wire loop 204 that matches the curvature of leaf springs 212 and 214. Leaf springs 212 and 214 can be configured to define the shape of headband 202 and to exert a force upon the head of a user. Each of wire guides 210 can include openings through which opposing sides of wire loop 204 and leaf springs 212 and 214 can pass. In some embodiments, the openings for wire loop 204 can be defined by low-friction bearings to prevent noticeable friction from impeding the motion of wire loop 204 through the openings. In this way, wire guides 210 define a path along which wire loop 204 extends between stem housings 216 and 218. Wire loop 204 is coupled to both stem 206 and stem 208 and functions to maintain a distance 120 between an earpiece 122 and stem housing 116 substantially the same as a distance 124 between earpiece 126 and stem housing 118. A first side 204-1 of wire loop 204 is coupled to stem 206 and a second side 204-2 of wire loop 204 is coupled to stem 208. Because opposite sides of the wire loop are attached to stems 206 and 208 movement of one of the stems results in movement of the other stem in the same direction.

[0016] FIG. 2B shows a cross-sectional view of a portion of stem housing 116 in accordance with section line A-A. In particular, FIG. 2B shows how a protrusion 228 of stem 206 engages part of wire loop 204. Because protrusion 228 of stem 206 is coupled with wire loop 204, when a user of headphones 100 pulls earpiece 222 farther away from stem housing 216, wire loop 204 is also pulled causing wire loop 204 to circulate through headband 202. The circulation of wire loop 204 through headband 202 adjusts the position of earpieces 226, which is similarly coupled to wire loop 204 by a protrusion of stem 208. In addition to forming a mechanical coupling with wire loop 204, protrusion 228 can also be electrically coupled to wire loop 204. In some embodiments, protrusion 228 can include an electrically conductive pathway 230 that electrically couples wire loop 204 to electrical components within earpiece 222. In some embodiments, wire loop 204 can be formed from an electrically conductive material, so that signals can be transferred between components within earpieces 222 and 226 by way of wire loop 204.

[0017] FIG. 2C shows another cross-sectional view of stem housing 116 in accordance with section line B-B. In particular, FIG. 2C shows how wire loop 204 engages pulley 232 within stem housing 216. Pulley 232 minimizes any friction generated by the movement of earpiece 222 closer or farther away from stem housing 216. Alternatively, wire loop 204 can be routed through a static bearing within stem housing 216.

[0018] FIG. 2D shows another perspective view of headphones 200. In this view, it can be seen that first side 204-1 and second side 204-2 of wire loop 204 shift laterally as they cross from one side of headband 202 to the other. This can be accomplished by the openings defined by wire guides 210 being gradually offset so that by the time sides 204-1 and 204-2 reach stem housing 218, second side 204-2 is centered and aligned with stem 208, as depicted in FIG. 2E.

[0019] FIG. 2E shows how second side 204-2 is engaged by protrusion 234. Because stems 206 and 208 are attached to respective first and second sides of wire loop 204, pushing earpiece 226 towards stem housing 218 also results in earpiece 222 being pushed towards stem housing 216. Another advantage of the configuration depicted in FIGS. 2A - 2E is that regardless of the direction of travel of stems 206 and 208, wire loop 204 always stays in tension. This keeps the amount of force needed to extend or retract earpieces 222 and 226 consistent regardless of direction.

[0020] FIGS. 2F - 2G show perspective views of headphones 250. Headphones 250 are similar to headphones 200 with the exception that only a single leaf spring 252 is used to connect stem housing 254 to stem housing 256. In this embodiment, wire loop 258 can be positioned to either side of leaf spring 252. Instead of being positioned directly below one side of wire loop 258, stems 260 and 262 can be positioned directly between the two sides of wire loop 258 and connected to one side of wire loop 258 by an arm of stems 260 and 262.

[0021] FIGS. 2H and 2I show cross-sectional views of an interior portion of stem housings 254 and 256. FIG. 2H shows a cross-sectional view of stem housing 254 in accordance with section line D-D. FIG. 2H shows how stem 260 can include a laterally protruding arm 268 that engages wire loop 258. In this way, laterally protruding arm 268 couples stem 260 to wire loop 258 so that when earpiece 264 is moved earpiece 266 is kept in an equivalent position. FIG. 2I shows a cross-sectional view of stem housing 256 in accordance with section line E-E. FIG. 2I shows how wire loop 258 can be routed within stem housing 256 by pulleys 270 and 272. By routing wire loop 258 above stem 262 any interference between wire loop 258 and stem 206 can be avoided.

[0022] FIG. 3A shows a flattened schematic view of another earpiece synchronization system that utilizes a loop 328 within a headband 330 (the rectangular shape is used merely to show the location of headband 330 and should not be construed as for exemplary purposes only) to keep a distance between each of earpieces 304 and 306 and headband 330 synchronized. Stem wires 332 and 334 couple respective earpieces 304 and 306 to loop 328. Stem wires 332 and 334 can be formed of metal and soldered to opposing sides of loop 328. Because stem wires 332 and 334 are coupled to opposing sides of loop 328, movement of earpiece 306 in direction 336 results in stem wire 332 moving in direction 338. Consequently, moving earpiece 306 into closer proximity with headband 330 also moves stem wire 332, which results in earpiece 304 being brought into closer proximity with headband 330. In addition to showing a new location of earpieces 304 and 306 after being moved into closer proximity to headband 330, FIG. 3B shows how moving earpiece 304 in direction 340 automatically moves earpiece 306 in direction 342 and farther away from headband 330. While not depicted it should be appreciated that headband 330 could include various reinforcement members to keep loop 328 and stem wires 332 and 334 in the depicted shapes.

[0023] FIGS. 3C - 3D show a flattened schematic view of another earpiece synchronization system similar to the one depicted in FIGS. 3A - 3B. FIG. 3C shows how the ends of stems 344 and 346 can be coupled directly to each other without an intervening loop. By extending stems 344 and 346 into a pattern, having a similar shape as loop 328, a similar outcome can be achieved without the need for an additional loop structure. Movement of stems 344 and 346 is assisted by reinforcement members 348, 350 and 352, which help to prevent buckling of stems 344 and 346 while the position of earpieces 304 and 306 are being adjusted. Reinforcement members 348-352 can define channels through which stems 344 and 346 smoothly pass. These channels can be particularly helpful in locations where stems 344 and 346 curve. While not defining a curved channel, reinforcement member 352 still serves an important purpose of limiting the direction of travel of the ends of stems 344 and 346 to directions 354 and 356. Movement in direction 356 results in earpieces moving toward headband 330, as depicted in FIG. 3D. Movement in direction 354 results in earpieces 304 and 306 moving farther away from headband 330.

[0024] FIGS. 3E - 3F show cutaway views of headphones 360 that are suitable for incorporation of either one of the earpiece synchronization systems depicted in FIGS. 3A - 3D. FIG 3E shows headphones 360 with earpieces retracted and stem wires 332 and 334 extending out of headband 330 to engage and synchronize a position of stem assembly 362 with a position of stem assembly 364. Stem 334 is depicted coupled to support structure 366 within stem assembly 364, which allows extension and retraction of stem 334 to keep stem assembly 362 synchronized with stem assembly 364. As depicted, stem assembly 362 is disposed within a channel defined by headband 330, which allows stem assembly 362 to move relative to headband 330. FIG. 3E also shows how data synchronization cable 368 can extend through headband 330 and wrap around a portion of both stem wire 334 and stem wire 332. By wrapping around stem wires 332 and 334, data synchronization cable 356 is able to act as a reinforcement member to prevent buckling of stem wires 332 and 334. Data synchronization cable 356 is generally configured to exchange signals between earpieces 304 and 306 in order to keep audio precisely synchronized during playback operations of headphones 360.

[0025] FIG. 3F shows how the coil configuration of data synchronization cable 368 accommodates extension of stem assemblies 362 and 364. Data synchronization cable 368 can have an exterior surface with a coating that allows stem wires 332 and 334 to slide through a central opening defined by the coils. FIG. 3F also shows how earpieces 304 and 306 maintain the same distance from a central portion of headband 330.

[0026] FIGS. 3G - 3H show perspective views of the earpiece synchronization system depicted in FIGS. 3A - 3B in retracted and extended positions as well as a data synchronization cable 368. FIG. 3G shows how stem wire 332 includes an attachment feature 370 that at least partially surrounds a portion of loop 328. In this way, stem wire 332, stem wire 334 and support structures 366 move along with loop 328. FIG. 3G also shows a dashed line illustrating how a covering for headband 330 can at least partially conform with loop 328, stem wire 332 and stem wire 334.

[0027] FIG. 3I shows a portion of canopy structure 372 and how an earpiece synchronization system can be routed through reinforcement members 374 of canopy structure 372. Reinforcement members 374 help guide loop 328 and stem wire 332 along a desired path. In some embodiments, canopy structure 372 can include a spring mechanism that helps keep earpieces secured to a user's ears.

[0028] FIGS. 4A - 4B show another way in which to limit the range of motion of a pair of headphones 900 using a low spring-rate band 902. FIG. 4A shows cable 904 in a slack state on account of earpieces 904 being pulled apart. The range of motion of low spring-rate band 902 can be limited by cable 904 achieving a similar function to the function of compression band 806, engaging as a result of function of tension instead of compression. Cable 904 is configured to extend between earpieces 906 and is coupled to each of earpieces 906 by anchoring features 908. Cable 904 can be held above low spring-rate band 902 by wire guides 910. Wire guides 910 can be similar to wire guides 210 depicted in FIGS. 2A - 2G, with the difference that wire guides 910 are configured to elevate cable 904 above low spring-rate band 902. Bearings of wire guides 910 can prevent cable 904 from catching or becoming undesirably tangled. It should be noted that cable 904 and low spring-rate band 902 can be covered by a cosmetic cover. It should also be noted that in some embodiments, cable 904 could be combined with the embodiments shown in FIGS. 2A - 2G to produce headphones capable of synchronizing earpiece position and controlling the range of motion of the headphones.

[0029] FIG. 4B shows how when earpieces 906 are brought closer together cable 904 tightens and eventually stops further movement of earpieces 906 closer together. In this way, a minimum distance 912 between earpieces 906 can be maintained that allows headphones 900 to be worn comfortably around the neck of a broad population of users without squeezing the neck of the user too tightly.

[0030] Headphones are disclosed and include the following: a first earpiece; a second earpiece; and a headband coupling the first and second earpieces together and being configured to synchronize a movement of the first earpiece with a movement of the second earpiece such that a distance between the first earpiece and a center of the headband remains substantially equal to a distance between the second earpiece and the center of the headband.

[0031] According to the invention, the headband comprises a loop of cable routed therethrough.

[0032] According to the invention, a first stem of the first earpiece is coupled to the loop of cable and a second stem of the second earpiece is coupled to the loop of cable.

[0033] In some embodiments, the loop of cable is configured to route an electrical signal from the first earpiece to the second earpiece.

[0034] According to the invention, the headband includes two parallel leaf springs defining a shape of the headband.

[0035] According to the invention, the headband includes a loop of wire disposed within the headband, a first stem wire coupling the first earpiece to a first side of the loop of wire, and a second stem wire coupling the second earpiece to a second side of the loop of wire.

[0036] In some embodiments, the headphones also include a data synchronization cable extending from the first earpiece to the second earpiece through a channel defined by the headband, the data synchronization cable carrying signals between electrical components of the first and second earpieces.

[0037] In some embodiments, a first portion of the data synchronization cable is coiled around the first stem wire and a second portion of the data synchronization cable is coiled around the second stem wire.

[0038] Headphones are disclosed and include the following: a headband having a first end and a second end opposite the first end; a first earpiece coupled to the headband a first distance from the first end; a second earpiece coupled to the headband a second distance from the second end; and a cable routed through the headband and mechanically coupling the first earpiece to the second earpiece, the cable being configured to maintain the first distance substantially the same as the second distance by changing the first distance in response to a change in the second distance.

[0039] According to the invention, the cable is arranged in a loop and the first earpiece is coupled to a first side of the loop and the second earpiece is coupled to a second side of the loop.

[0040] According to the invention, the headphones also include stem housings coupled to opposing ends of the headband, each of the stem housings enclosing a pulley about which the cable is wrapped.

[0041] According to the invention, the headphones also include wire guides distributed across the headband and defining a path of the cable through the headband.

[0042] Headphones are disclosed and include the following: a first earpiece; a second earpiece; a headband assembly coupling the first and second earpieces together and comprising an earpiece synchronization system, the earpiece synchronization system configured to change a first distance between the first earpiece and the headband assembly concurrently with a change in a second distance between the second earpiece and the headband assembly.

[0043] In some embodiments, the headphones also include first and second members coupled to opposing ends of the headband assembly, each of the first and second members being configured to telescope relative to a channel defined by a respective end of the headband assembly.

[0044] In some embodiments, the earpiece synchronization system includes a first stem wire coupled to the first earpiece and a second stem wire coupled to the second earpiece.

[0045] In some embodiments, the first stem wire is coupled to the second stem wire in a channel disposed within a central region of the headband assembly.

[0046] In some embodiments, the headphones also include a reinforcement member disposed within the headband assembly and defining the channel within which the first and second stem wires are coupled together.

[0047] In some embodiments, the earpiece synchronization system includes a first stem wire having a first end coupled to the first earpiece and a second end coupled to a second end of the second stem wire and wherein a first end of the second stem wire is coupled to the second earpiece.

[0048] In some embodiments, the second end of the first stem wire is oriented in the same direction as the second end of the second stem wire.

Claims

1. Headphones (200), comprising: a first earpiece (222); a second earpiece (226); and a headband (202), the headband (202) characterized by comprising stem housings (216, 218) coupling the first and second earpieces (222, 226) to opposite ends of the headband (202) and a loop of cable (204) routed through the headband (202) and wrapped around pulleys (232) positioned in each of the stem housings (216, 218), the loop of cable (204) being configured to synchronize a movement of the first earpiece (222) with a movement of the second earpiece (226) such that a distance between the first earpiece (222) and a centre of the headband (202) remains substantially equal to a distance between the second earpiece (226) and the centre of the headband (202); characterised by wire guides (210) distributed across the headband (202) and defining a path of the loop of cable (204) through the headband (202), wherein the loop of cable (204) interacts with the first and second earpieces (222, 226) to keep the distance between the first earpiece (222) and a centre of the headband (202) substantially equal to the distance between the second earpiece (226) and the centre of the headband (202); two parallel leaf springs (212, 214) defining a shape of the headband (202); and wherein each of the wire guides (210) includes openings through which opposing sides of the loop of cable (204) and the leaf springs (212, 214) can pass, wherein the openings for the loop of cable (204) are defined by low-friction bearings.

2. The headphones (200) as recited in claim 1, wherein the loop of cable (204) is configured to route an electrical signal from the first earpiece (222) to the second earpiece (226).

3. The headphones (200) as recited in claim 1 or 2, wherein a first stem (206) of the first earpiece (222) is coupled to the loop of cable (204) and a second stem (208) of the second earpiece (226) is coupled to the loop of cable (204).

4. The headphones (200) as recited in claim 3, wherein the first stem (206) is coupled to a first end of the loop of cable (204) and the second stem (208) is coupled to a second end of the loop of cable (204) opposite the first end.

5. The headphones (200) as recited in claim 1, wherein the loop of cable (204, 328) is disposed within the headband (202, 330), a first stem wire (332) coupling the first earpiece (222, 304) to a first side of the loop of cable (204, 328), and a second stem wire (324) coupling the second earpiece (226, 306) to a second side of the loop of cable (204).

6. The headphones (200) as recited in claim 1, further comprising a data synchronization cable (368) extending from the first earpiece (222) to the second earpiece (226) through a channel defined by the headband (202), the data synchronization cable (368) carrying signals between electrical components of the first and second earpieces (222, 226).

7. The headphones (200) as recited in claim 6, wherein a first portion of the data synchronization cable (368) is coiled around the first stem wire (362) and a second portion of the data synchronization cable (368) is coiled around the second stem wire (364).

8. The headphones (200) as recited in one of the previous claims, further comprising first and second stems (206, 208) coupled to opposing ends of the headband assembly, each of the first and second stems (206, 208) being configured to telescope relative to a channel defined by a respective end of the headband assembly.

9. The headphones (200) as recited in claim 8, wherein the first stem (206) and the second stem (208) are both coupled to a cable (204) disposed within the headband assembly that keeps the distance between the first earpiece (222) and a centre of the headband substantially equal to the distance between the second earpiece (226) and the centre of the headband (202).

10. The headphones (200) as recited in claim 9, wherein the cable (204) is arranged in a loop within the headband assembly.