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:
Mar. 04, 2014
Filed:
Sep. 23, 2010
Takashi Yoshioka, Kawasaki, JP;
Masahiko Takenaka, Kawasaki, JP;
Fumitsugu Matsuo, Shinjuku, JP;
Fumiaki Chiba, Kawasaki, JP;
Takashi Yoshioka, Kawasaki, JP;
Masahiko Takenaka, Kawasaki, JP;
Fumitsugu Matsuo, Shinjuku, JP;
Fumiaki Chiba, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Fujitsu Advanced Engineering Limited, Shinjuku, JP;
Abstract
A signature generating device includes a receiving unit that receives a sequence of data; a summary data generating unit that generates summary data of the data upon reception of each of the data by the receiving unit; an obtaining unit that obtains, when the number of data included in a sequence of the generated summary data reaches a given number, the sequence of the summary data as a block; a setting unit that sets, as a signature subject, a current block constituted by the sequence of the summary data, and the summary data selected from at least one block contiguous to the current block; a digital signature generating unit that generates a digital signature concerning data summarized for the current block; and a sending unit that sends the generated digital signature, the signature subject associated with the digital signature, and the data summarized for the current block.