Electronic device and method
AssigneesKabushiki Kaisha Toshiba, Toshiba Client Solutions CO., LTD.
InventorTadashi TSUJI
Life of this patent
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Abstract
According to one embodiment, an electronic device operable by a power supply voltage obtained from a commercial power supply, includes a capacitor charged with the power supply voltage, and a circuitry configured to write power failure occurrence time information to a nonvolatile memory using power of the capacitor after occurrence of power failure, read the power failure occurrence time information from the nonvolatile memory, and transmit the power failure occurrence time information to an external device.
Claims20
An electronic device operable by a power supply voltage obtained from a power supply, comprising:
- a capacitor charged by the power supply voltage;
- and
- a circuitry configured to:
- write power failure occurrence time information to a nonvolatile memory using power of the capacitor after an occurrence of a power failure,
- read the power failure occurrence time information from the nonvolatile memory, and
- transmit the power failure occurrence time information to an external device.
A method of an electronic device operable by a power supply voltage obtained from a power supply, the electronic device comprising a nonvolatile memory and a capacitor charged by the power supply voltage, the method comprising:
- writing power failure occurrence time information to the nonvolatile memory using power of the capacitor after an occurrence of a power failure;
- reading the power failure occurrence time information from the nonvolatile memory;
- and
- transmitting the power failure occurrence time information to an external device.
An electronic device connectable to a power meter comprising a converter configured to be connected to a power supply and to convert a voltage of the power supply into an operation voltage, the electronic device comprising:
- a circuit element configured to receive the operation voltage from the converter and to hold the operation voltage for a first period after an occurrence of a power failure;
- a communication device configured to transmit power amount information received from the power meter to a server;
- a nonvolatile memory to which power failure occurrence time information is written after occurrence of the power failure;
- and
- a controller configured to read the power failure occurrence time information from the nonvolatile memory and to notify the server of the power failure occurrence time information by the communication device.
Dependencies are inferred from the claim text.