Haptic transducer devices and associated apparatuses, systems and methods
A haptic transducer having first and second members that are reciprocally movable relative to one another. The members are magnetic and comprise a compliant member coupled between them. The haptics transducer embodiments are suitable for wearable or handheld devices or apparatuses, such as headphones or footwear as they comprise a low-profile yet provide suitable haptic feedback without significantly altering the compliance of the wearable or handheld device or apparatus.
1 . A wearable or handheld device comprising:
a base;
a substantially compliant layer of padding coupled to the base for providing comfort to a user of the device; and
a haptics transducer comprising:
a first member;
a second member; and
a substantially compliant member coupled to and between the first member and the second member;
wherein the first member is operatively coupled to, and reciprocally movable relative to, the second member in response to received electrical signals; and
wherein the second member is coupled to the base via a connection that is independent of the compliant member.
2 . The device of claim 1 , wherein the compliant member maintains substantially constant contact with both the first member and the second member when the device is in use.
3 . The device of claim 1 , wherein a majority of an outer periphery of the compliant member extends substantially within or is substantially contained within an outer periphery or boundary of the first member or of the second member, or both, about an axis of movement of the first member relative to the second member.
4 . The device of claim 3 , wherein the compliant member is substantially wholly within the outer periphery or boundary of the first member or the outer periphery or boundary of the second member, or both.
5 . The device of claim 1 , wherein the base is substantially incompressible or less compressible relative to the compliant layer of padding.
6 . The device of claim 1 , wherein the base is substantially rigid.
7 . The device of claim 1 , wherein the first member of the haptics transducer is contained and embedded within the layer of padding.
8 . The device of claim 1 , wherein the first member is substantially wholly contained and embedded within the compliant layer of padding.
9 . The device of claim 1 , wherein the second member is coupled to the base.
10 . The device of claim 9 , wherein an overall compliance between the second member and the base is lower than a compliance between the first member and the second member.
11 . The device of claim 9 , wherein the second member is rigidly coupled to the base.
12 . The device of claim 9 , wherein the second member is compliantly coupled to the base.
13 . The device of claim 1 , wherein the second member remains substantially stationary and the first member moves relative to the second member during operation of the haptics transducer.
14 . The device of claim 13 , wherein the device further comprises a second substantially compliant layer of padding coupled to the base, wherein a majority of the second member is embedded within the second substantially compliant layer of padding.
15 . The device of claim 14 , wherein the second member is substantially wholly contained and embedded within the second substantially compliant layer of padding.
16 . The device of claim 1 , wherein the first member is located proximal to a surface of the device that is configured to engage a user in use, and the second member is located substantially distal to the surface relative to the first member.
17 . The device of claim 1 , wherein the substantially compliant layer of padding comprises a foamed material.
18 . The device of claim 1 , wherein an overall compliance, per unit area of a connection between the first member and the second member is substantially the same or lower than a compliance, per unit area between a wearer's bones and the first member, in use.
19 . The device of claim 1 , wherein an overall compliance of the device exhibited by a user in a region of the haptics transducer in use is substantially the same or similar to an overall compliance exhibited by a user in regions that surround the haptics transducer.
20 . The device of claim 1 , wherein the first member or the second member comprises an electromagnet having a coil, and wherein the coil is wound about an axis that is substantially perpendicular to the axis of relative linear motion between the first member and the second member.