Battery-driven electric equipment
First Claim
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1. A battery-driven electric equipment, comprising:
- an image sensor for photoelectrically converting an optical image of an object;
a video circuit for processing an output from said image sensor;
a display for displaying an image processed by said video circuit;
a manipulation member;
a discriminator for discriminating whether said manipulation member has not been manipulated for a predetermined time period;
a first controller for suspending a power supply from said battery to said video circuit and said display when said discriminator discriminates that said manipulation member has not been manipulated for a first time period;
a second controller for turning off a power supply of said electric equipment when said discriminator discriminates that said manipulation member has not been manipulated for a second time period longer than the first time period; and
a detector for detecting a voltage of said battery;
wherein said first controller changes the first time period based on the voltage detected by said detector, and said second controller changes the second time period based on the voltage detected by said detector.
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Abstract
A battery-driven electric equipment includes a detector for detecting a voltage of the battery and a calculator for calculating an available photographing number based on the voltage detected by the detector. The available photographing number calculated by the calculator is displayed by an indicator.
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Citations
17 Claims
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1. A battery-driven electric equipment, comprising:
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an image sensor for photoelectrically converting an optical image of an object;
a video circuit for processing an output from said image sensor;
a display for displaying an image processed by said video circuit;
a manipulation member;
a discriminator for discriminating whether said manipulation member has not been manipulated for a predetermined time period;
a first controller for suspending a power supply from said battery to said video circuit and said display when said discriminator discriminates that said manipulation member has not been manipulated for a first time period;
a second controller for turning off a power supply of said electric equipment when said discriminator discriminates that said manipulation member has not been manipulated for a second time period longer than the first time period; and
a detector for detecting a voltage of said battery;
wherein said first controller changes the first time period based on the voltage detected by said detector, and said second controller changes the second time period based on the voltage detected by said detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
a photographing lens;
an automatic focusing mechanism for automatically adjusting a focus of said photographing lens;
a third controller for discriminating whether a use of said automatic focusing mechanism should be prohibited based on the voltage detected by said detector and indicating that it is possible to manually adjust the focus of said photographing lens when it is discriminated that the use of said automatic focusing mechanism should be prohibited; and
a driver for driving said photographing lens to a predetermined focal length when it is discriminated that the use of said automatic focusing mechanism should be prohibited.
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16. A method of controlling a battery-driven electric equipment, the method comprising:
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photoelectrically converting an optical image of an object by an image sensor;
processing an output from the image sensor by a video circuit;
displaying an image processed by the video circuit on a display;
discriminating whether a manipulation member has not been manipulated for predetermined time period;
suspending a power supply from the battery to the video circuit and the display when it is discriminated that the manipulation member has not been manipulated for a first time period;
turning off a power supply of the electric equipment when it is discriminated that the manipulation member has not been manipulated for a second time period longer than the first time period;
detecting a voltage of the battery; and
changing the first time period and the second time period based on a detected voltage. - View Dependent Claims (17)
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Specification