Battery powered unit with battery sensor and resume processing control means
First Claim
1. A battery powered unit which is driven by an output voltage of a battery when the power is ON, said battery powered unit comprising:
- voltage detection means for detecting the output voltage of the battery and for outputting a detection signal indicative of the detected voltage;
judging means, coupled to said voltage detection means, for judging whether or not a remaining capacity of the battery is greater than a predetermined value based on the detection signal output from said voltage detection means; and
control means, coupled to said judging means, for carrying out a resume process only if said judging means judges that the remaining capacity of the battery is greater than the predetermined value when the power is turned ON,said resume process returning a state of the battery powered unit to a state at a time when the power was previously turned OFF.
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Accused Products
Abstract
An apparatus driven by an output voltage of a battery when the power is ON includes a voltage detection circuit for detecting the output voltage of the battery, a judging circuit for judging whether or not a remaining capacity of the battery is greater than a predetermined value based on an output detection signal of the voltage detection circuit, and a control circuit for carrying out a resume process only if the judging circuit judges that the remaining capacity of the battery is greater than the predetermined value when the power is turned ON. The resume process returns a state of the battery powered unit to a state at a time when the power was previously turned OFF.
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Citations
17 Claims
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1. A battery powered unit which is driven by an output voltage of a battery when the power is ON, said battery powered unit comprising:
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voltage detection means for detecting the output voltage of the battery and for outputting a detection signal indicative of the detected voltage; judging means, coupled to said voltage detection means, for judging whether or not a remaining capacity of the battery is greater than a predetermined value based on the detection signal output from said voltage detection means; and control means, coupled to said judging means, for carrying out a resume process only if said judging means judges that the remaining capacity of the battery is greater than the predetermined value when the power is turned ON, said resume process returning a state of the battery powered unit to a state at a time when the power was previously turned OFF. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. The battery powered unit which is driven by an output voltage of a battery when the power is ON, said battery powered unit comprising:
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voltage detection means for detecting the output voltage of the battery when the power is turned ON and for outputting a detection signal indicative of the detected voltage; judging means, coupled to said voltage detection means, for judging whether or not a remaining capacity of the battery is greater than a predetermined value based on the detection signal output from said voltage detection means; resume process means for carrying out a resume process when the power is turned ON, said resume process returning the battery powered unit to a state the battery powered unit was at when the power was previously turned OFF, and control means, coupled to said judging means, for supplying the output voltage of the battery to drive the battery powered unit if said judging means judges that the remaining capacity of the battery is greater than the predetermined value and for prohibiting the supply of the output voltage of the battery if said judging means judges that the remaining capacity of the battery is less than or equal to the predetermined value. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A battery powered unit which is driven by an output voltage of a battery when the power is ON, said battery powered unit comprising:
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voltage detection means for detecting the output voltage of the battery when the power is turned ON and for outputting a detection signal indicative of the detected voltage; judging means, coupled to said voltage detection means, for judging whether or not a remaining capacity of the battery is greater than a predetermined value based on the detection signal output from said voltage detection means; and control means, coupled to said judging means, for supplying the output voltage of the battery to drive the battery powered unit if said judging means judges that the remaining capacity of the battery is greater than the predetermined value and for prohibiting the supply of the output voltage of the battery if said judging means judges that the remaining capacity of the battery is less than or equal to the predetermined value.
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Specification