Method and apparatus for recognizing different types of batteries
First Claim
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1. In an apparatus for receiving a battery including a first terminal for delivering current to a load and a second terminal for receiving current from the load, a method of determining use of the battery, the method comprising the steps, performed by the apparatus, of:
- detecting an electrical characteristic of a circuit including the first and second terminals; and
determining the type of battery in accordance with the electrical characteristic.
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Abstract
A method for recognizing different types of batteries in a product capable of using two or more types of batteries so as to employ the battery life efficiently. The method includes detecting the battery voltage upon connection to a load and detecting variations of the battery voltage with load variations. The discharge voltages of an alkaline battery and a nickel-cadmimum are distinguished so as to avoid premature replacement of an alkaline battery.
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Citations
27 Claims
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1. In an apparatus for receiving a battery including a first terminal for delivering current to a load and a second terminal for receiving current from the load, a method of determining use of the battery, the method comprising the steps, performed by the apparatus, of:
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detecting an electrical characteristic of a circuit including the first and second terminals; and determining the type of battery in accordance with the electrical characteristic. - View Dependent Claims (2, 3)
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4. A method for recognizing a type of battery, the method comprising the steps of:
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detecting a first voltage across a first load; detecting a second voltage across a second load higher than the first load; calculating a first value in accordance with the first and second voltages; comparing the first value with a second value to produce a comparison result; and determining the type of battery in accordance with the comparison result. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26)
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24. A device for recognizing different types of batteries comprising:
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means for receiving a battery; means for detecting voltages of the batteries under a first load and under a second load higher than the first load; means for storing the detected voltages; means for processing the stored voltages to produce a processed value; means for comparing the processed value with a predetermined value to produce a comparison result; and means for controlling a monitored voltage of the batteries in accordance with the comparison result. - View Dependent Claims (27)
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Specification