Patent ID: 8964114
Filing Date: 2015-02-24
Classification: G01S,G06F,H05K

Abstract:
1. An external accessory that can be attached to and detached from an electronic apparatus equipped with a power source unit which has a first power line and a second power line, the external accessory comprising: a first power receiving unit that is configured to receive power through the first power line; a second power receiving unit that is configured to receive power through the second power line; a decision-making unit that makes a decision as to whether or not the first power receiving unit is receiving power through the first power line; a function execution unit that executes a predetermined function by using power received at one of the first power receiving unit and the second power receiving unit; and a control unit that engages the function execution unit in operation continuously when an affirmative decision is made by the decision-making unit, and engages the function execution unit in operation intermittently when a negative decision is made by the decision-making unit.