Battery residual-power checking apparatus
First Claim
1. A battery residual-power checking apparatus comprising:
- a detecting device for detecting a type of battery accommodated in a camera a battery from a plurality of battery types prepared in advance;
a load applying device for applying a load to said detected battery, a magnitude of said load being determined in advance in accordance with the type of said detected battery;
a voltage measuring device for measuring an output voltage of said detected battery while said load applying device applies said load to said detected battery; and
a battery residual-power determining device for determining the remaining power of said detected battery in accordance with said output voltage measured by said voltage measuring device and the type of said detected battery.
3 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a battery residual-power checking apparatus including: a detecting device for detecting a type of battery accommodated in a camera a battery from a plurality of battery types prepared in advance; a load applying device for applying a load to the detected battery, a magnitude of the load being determined in advance in accordance with the type of the detected battery; a voltage measuring device for measuring an output voltage of the detected battery while the load applying device applies the load to the detected battery; and a battery residual-power determining device for determining the remaining power of the detected battery in accordance with the output voltage measured by the voltage measuring device and the type of the detected battery.
26 Citations
11 Claims
-
1. A battery residual-power checking apparatus comprising:
-
a detecting device for detecting a type of battery accommodated in a camera a battery from a plurality of battery types prepared in advance; a load applying device for applying a load to said detected battery, a magnitude of said load being determined in advance in accordance with the type of said detected battery; a voltage measuring device for measuring an output voltage of said detected battery while said load applying device applies said load to said detected battery; and a battery residual-power determining device for determining the remaining power of said detected battery in accordance with said output voltage measured by said voltage measuring device and the type of said detected battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A camera having a battery residual-power checking apparatus, wherein more than one type of battery being accommodated in said camera, said battery residual-power checking apparatus comprising:
-
a battery selecting device for detecting a type of battery accommodated in said camera; a load applying device for alternately connecting and disconnecting said battery detected by said battery selecting device with at least one load resistor repeatedly by a predetermined number of times, which is determined in accordance with the type of said detected battery; a voltage measuring device for measuring a terminal voltage of said at least one load resistor while said detected battery is connected with said at least one load resistor; and a battery residual-power determining device for determining the remaining power of said detected battery in accordance with said terminal voltage and the type of said detected battery.
-
-
11. A camera having a battery residual-power checking apparatus, wherein a removable battery pack is provided according to the type of battery loaded into said camera, said battery residual-power checking apparatus comprising:
-
a selecting device which selects the type of battery which has been loaded into said battery pack in said camera; a loading applying device for applying a load to a battery loaded into said battery pack according to a predetermined load set for said type of battery detected by the selecting device; a voltage measuring device for measuring a terminal voltage of at least one load resistor while said detected battery is connected with said at least one load resistor; and a battery residual-power determining device for determining the remaining power of said detected battery in accordance with said terminal voltage and said type of detected battery.
-
Specification