Patent ID: 11901756
Assignee: SNAP INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A system, comprising:
a chargeable device including:
a battery charger circuit; and
a receiver including contact pads coupled to the battery charger circuit and to ground of the chargeable device;

a charging cable including:
power and ground buses;
a cable head having power and ground pins coupled respectively to the power and ground buses and configured to engage the contact pads, when the cable head is coupled to the receiver of the chargeable device;
a current sensor coupled to at least one of the buses to detect current flow via the pins of the cable head;
a state indicator for providing an output perceptible to a user; and
logic circuitry coupled to operate the state indicator, the logic circuitry configured to compare level of current detected by the current sensor to a threshold and, in response to results of the comparison, control the state indicator to provide a perceptible output and maintain the perceptible output while the current sensor periodically detects peaks of modulated current pulses at or above the threshold.