Patent ID: 11914542
Assignee: CANTALOUPE, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. A host device of a serial device system having a serial communications connection, the host device comprising:
a host serial communication transceiver connected to a peripheral serial communication transceiver of a peripheral device via a serial connection of a serial communications cable having communication lines,
wherein the host device measures electrical power consumption of the host serial communication transceiver to determine when serial communications is prevented due to the serial communications cable being disconnected which includes at least one of the communication lines being: detached from the host, detached from the peripheral device, or broken, and
wherein the host device determines when serial communications is prevented due to the serial communications cable being disconnected by:
measuring an enabled electrical power consumption as the electrical power consumption of the host serial communication transceiver when the host serial communication transceiver is enabled,
measuring a disabled electrical power consumption as the electrical power consumption of the host serial communication transceiver when the host serial communication transceiver is disabled, and
determining that a difference between the enabled electrical power consumption and the disabled electrical power consumption is less than a threshold.