Method of detecting charger type and estimating remaining recharging time for mobile devices with USB recharging
First Claim
1. A method comprising the steps of:
- detecting, by an apparatus, an availability of a charging device to provide charging current to terminals of a battery in the apparatus;
determining, by the apparatus, a type of the charging device by measuring its charging current into the battery and battery voltage between the terminals of the battery, as measured charging characteristics during-charging the battery in the apparatus;
comparing the measured charging characteristics with stored charging characteristics of a plurality of chargers, adapters, or charger-adapter combinations; and
calculating, by the apparatus, a time remaining to charge the battery based on a comparison of the measured charging current with the stored charging characteristics.
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Abstract
Method, apparatus, and computer program product embodiments are disclosed for estimating the remaining charging time of a rechargeable battery. An example embodiment of the invention comprises a method comprising the steps of detecting an availability of a charging device to a battery in an apparatus; determining a type of the charging device by measuring its charging characteristics for charging the battery in the apparatus and comparing its measured charging characteristics with stored charging characteristics of a plurality of chargers, adapters, or charger-adapter combinations; measuring charging current of the battery; and calculating a time remaining to charge the battery based on a comparison of the measured charging current with the stored charging characteristics.
37 Citations
18 Claims
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1. A method comprising the steps of:
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detecting, by an apparatus, an availability of a charging device to provide charging current to terminals of a battery in the apparatus; determining, by the apparatus, a type of the charging device by measuring its charging current into the battery and battery voltage between the terminals of the battery, as measured charging characteristics during-charging the battery in the apparatus; comparing the measured charging characteristics with stored charging characteristics of a plurality of chargers, adapters, or charger-adapter combinations; and calculating, by the apparatus, a time remaining to charge the battery based on a comparison of the measured charging current with the stored charging characteristics. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus comprising:
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at least one processor; at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the processor at least to; detect an availability of a charging device to provide charging current to terminals of a battery in the apparatus; determine a type of the charging device by measuring its charging current into the battery and battery voltage between the terminals of the battery, as measured charging characteristics during-charging the battery in the apparatus; compare the measured charging characteristics with stored charging characteristics of a plurality of chargers, adapters, or charger-adapter combinations; and calculate a time remaining to charge the battery based on a comparison of the measured charging current with the stored charging characteristics. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A computer readable non-transitory medium, comprising program instructions, which when executed by a computer processor, perform the steps comprising:
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detecting, by an apparatus, an availability of a charging device to provide charging current to terminals of a battery in the apparatus; determining, by the apparatus, a type of the charging device by measuring its charging current into the battery and battery voltage between the terminals of the battery, as measured charging characteristics during-charging the battery in the apparatus; comparing the measured charging characteristics with stored charging characteristics of a plurality of chargers, adapters, or charger-adapter combinations; and calculating, by the apparatus, a time remaining to charge the battery based on a comparison of the measured charging current with the stored charging characteristics. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification