Patent ID: 8026797

Claim:
An emergency reporting apparatus for use in combination with an auxiliary battery device attachable to and detachable from the emergency reporting apparatus, the emergency reporting apparatus comprising: a power supply circuit having a vehicle battery mode and an auxiliary battery mode, the power supply circuit being configured to generate operating power of the emergency reporting apparatus from a vehicle battery in the vehicle battery mode and generate the operating power from the auxiliary battery device in the auxiliary battery mode; a control circuit configured to cause the power supply circuit to switch from the vehicle battery mode to the auxiliary battery mode in response to a trigger event to start an emergency reporting procedure, the control circuit starting the emergency reporting procedure by using the operating power generated from the auxiliary battery device; and a detection circuit configured to detect a predetermined operation performed by a user, wherein the control circuit causes the power supply circuit to switch from the auxiliary battery mode back to the vehicle battery mode, when the predetermined operation is detected within a predetermined period of time after the emergency reporting procedure is started.