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:
Jan. 29, 2013
Filed:
Jan. 18, 2011
Yu Tanaka, Tokyo, JP;
Masakazu Ukita, Kanagawa, JP;
Yohei Kawamoto, Tokyo, JP;
Seiichi Matsuda, Tokyo, JP;
Tomoyuki Asano, Kanagawa, JP;
Masanobu Katagi, Kanagawa, JP;
Shiho Moriai, Kanagawa, JP;
Asami Yoshida, Kanagawa, JP;
Yu Tanaka, Tokyo, JP;
Masakazu Ukita, Kanagawa, JP;
Yohei Kawamoto, Tokyo, JP;
Seiichi Matsuda, Tokyo, JP;
Tomoyuki Asano, Kanagawa, JP;
Masanobu Katagi, Kanagawa, JP;
Shiho Moriai, Kanagawa, JP;
Asami Yoshida, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Provided is a method where a power management apparatus (a) acquires, from a server managed by a manufacturer of an electronic appliance, a public key paired with a secret key that the electronic appliance and the server hold, (b) generates a ciphertext by generating a random number and encrypting the random number by the public key, and (c) transmits the ciphertext to the electronic appliance and the server, where the electronic appliance (d) restores the random number by decrypting the ciphertext transmitted in (c), (e) causes an electrical part to operate, based on the random number, and (f) transmits to the server the value of current flowing through the electrical part, and where the server (g) restores the random number by decrypting the ciphertext transmitted in (c), (h) calculates the value of current to flow through the electrical part based on the random number, and (i) compares values of current.