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Data management apparatus, power usage calculation system, and data management method
US9130909B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130909-B2 |
| Application number | US-201314133825-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2013 |
| Priority date | Feb 12, 2013 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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- Title
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Abstract
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According to an embodiment, a data management apparatus includes a first receiver, a generator, a second receiver, a convertor, and a transmitter. The first receiver is configured to receive first values from at least one power meter, the first values being acquired by encrypting power usage amounts collected by the at least one power meter using the corresponding first secret key. The generator is configured to generate a second value by summing the first values. The second receiver is configured to receive a conversion key from a key management server. The conversion key is generated by using the first secret key and the second secret key. The convertor is configured to convert the second value into a third value by using the conversion key. The transmitter is configured to transmit the third value to an application server.
First claim
Opening claim text (preview).
What is claimed is: 1. A data management apparatus that is connected to at least one power meter collecting a power usage amount for a collection time slot in which the power usage amount is collected, an application server executing a predetermined application by using a value acquired by summing power usage amounts collected by the at least one power meter, and a key management server maintaining first secret keys maintained by the at least one power meter and a second secret ke…
Assignees
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Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04L63/0428Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9130909B2 cover?
- According to an embodiment, a data management apparatus includes a first receiver, a generator, a second receiver, a convertor, and a transmitter. The first receiver is configured to receive first values from at least one power meter, the first values being acquired by encrypting power usage amounts collected by the at least one power meter using the corresponding first secret key. The generato…
- Who is the assignee on this patent?
- Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification H04L63/0428. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 08 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).