Performing a power supply check for an information storage device to increase power consumption in a stepwise manner
First Claim
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1. An information storage device adapted to use a power supply supplied from an interface or a battery, said device comprising:
- an electrical parameter monitoring part that performs a power supply check to increase power consumption in a stepwise manner as well as check a power supply voltage corresponding to the power consumption in each step in which the power consumption is increased stepwise;
a determination part that determines, based on the result of the power supply check performed by the electrical parameter monitoring part, whether control is to be performed by limiting the operation to an operational range that a power supply capacity permits or by inhibiting the operation of one or more functions of all the functions of the device in each step in which the power consumption is increased stepwise; and
a control part that operates the device based on the determination of the determination part.
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Abstract
In an information storage device adapted to use a power supply supplied from an interface or a battery, a voltage input from the power supply is monitored in each time the power consumption of the device is gradually increased upon connection of the power supply, so that the power consumption or the function of the device is limited based on the result of monitoring. Alternatively, a voltage or a current input from the power supply during operation of the device is monitored, so that the power consumption or the function of the device is limited based on the result of monitoring.
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Citations
15 Claims
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1. An information storage device adapted to use a power supply supplied from an interface or a battery, said device comprising:
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an electrical parameter monitoring part that performs a power supply check to increase power consumption in a stepwise manner as well as check a power supply voltage corresponding to the power consumption in each step in which the power consumption is increased stepwise; a determination part that determines, based on the result of the power supply check performed by the electrical parameter monitoring part, whether control is to be performed by limiting the operation to an operational range that a power supply capacity permits or by inhibiting the operation of one or more functions of all the functions of the device in each step in which the power consumption is increased stepwise; and a control part that operates the device based on the determination of the determination part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification