Electrical connection for active-stylus electrode
In one embodiment, an active stylus includes one or more computer-readable non-transitory storage media embodying logic for wirelessly communicating with a device through a touch sensor of the device. The active stylus also includes an electrode for wirelessly receiving or transmitting signals through the touch sensor of the device to enable the communication, wherein the electrode is disposed at or near a tip of the active stylus. The active stylus further includes a conductive element providing at least a portion of a connection between the electrode and the media. The conductive element is made of a single piece of conductive material and includes a first end connected to a circuit board of the active stylus that the media is disposed on. The conductive element also includes a second end that includes a deformable ring configured to fit within an interior portion of the electrode.
1. An active stylus, comprising:
one or more computer-readable non-transitory storage media embodying logic for wirelessly communicating with a device through a touch sensor of the device;
an electrode for wirelessly receiving or transmitting signals through the touch sensor of the device to enable the communication, wherein the electrode is disposed at or near a tip of the active stylus; and
a conductive element providing at least a portion of a connection between the electrode and the media, wherein the conductive element is made of a single piece of conductive material and comprises:
a first end connected to a circuit board of the active stylus that the media is disposed on;
a second end comprising a deformable ring configured to fit within an interior portion of the electrode, wherein the ring when undeformed has an outer diameter that is larger than an inner diameter of the interior portion of the electrode; and
a rod extending from the first end to the second end.
2. The active stylus of claim 1 , wherein:
the electrode is a receive electrode for wirelessly receiving signals from the device through the touch sensor of the device; and
the active stylus further comprises a transmit electrode for wirelessly transmitting signals to the device through the touch sensor of the device.
3. The active stylus of claim 1 , wherein:
the electrode is a transmit electrode for wirelessly transmitting signals to the device through the touch sensor of the device; and
the active stylus further comprises a receive electrode for wirelessly receiving signals from the device through the touch sensor of the device.
4. The active stylus of claim 1 , wherein the conductive element is formed from a single length of conductive metal with a substantially circular cross-section.
5. The active stylus of claim 1 , wherein the conductive element is made of spring steel.
6. The active stylus of claim 1 , wherein the deformable ring has a substantially circular shape.
7. The active stylus of claim 1 , wherein the outer diameter of the undeformed ring is 5% to 10% larger than the inner diameter of the interior portion of the electrode.
8. The active stylus of claim 1 , wherein the electrode has a shape of a truncated cone.
9. The active stylus of claim 1 , wherein the electrode comprises an electrically conductive material.
10. The active stylus of claim 1 , wherein the deformable ring has a substantially semicircular shape, elliptical shape, or semielliptical shape.