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US 2021/0344140 A1Published application
Circuits and methods for wearable device charging and wired control
AssigneeSnap Inc.
InventorsRussell Douglas Patton, Jonathan M. Rodriguez, II, Stephen Andrew Steger
Life of this patent
Estimating the term…
Abstract
Methods and devices for wired charging and communication with a wearable device are described. In one embodiment, a symmetrical contact interface comprises a first contact pad and a second contact pad, and particular wired circuitry is coupled to the first and second contact pad to enable charging as well as receive and transmit communications via the contact pads as part of various device states.
Claims20
An apparatus for controlling a wearable device, the apparatus comprising:
- a first n-type field effect transistor (NFET) having a source connected to a communication path to be coupled with communication circuitry of the wearable device, a gate connected to a control input configured for selecting between a charging mode and a communication mode of the apparatus, and a drain connected to a data input path;
- and
- a second NFET having a gate connected to the control input, a source connected to a ground, and a drain connected to a ground path for the data input path.
An apparatus for controlling a wearable device, the apparatus comprising:
- a first p-type field effect transistor (PFET) having a drain connected to a communication path to be coupled with communication circuitry of the wearable device, a gate connected to a control input configured for selecting between a charging mode and a communication mode of the apparatus, and a source connected to a data input path;
- and
- a second PFET having a gate connected to the control input, a drain connected to a ground, and a source connected to a ground path for the data input path.
A system for wired control comprising:
- a wearable device comprising a symmetrical contact interface comprising a first contact pad and a second contact pad;
- and
- means for receiving control data via the first contact pad and the second contact pad.
Dependencies are inferred from the claim text.