The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2015
Filed:
Dec. 19, 2013
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
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.