Digital signature apparatus and method

US9053370B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9053370-B2
Application numberUS-97141810-A
CountryUS
Kind codeB2
Filing dateDec 17, 2010
Priority dateDec 21, 2009
Publication dateJun 9, 2015
Grant dateJun 9, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A digital signature apparatus including, a converting unit that converts, based on a first video image frame being independently replayable, a predicted frame being not independently replayable into a second video image frame being independently replayable, an encoding unit that encodes the first or second video image frame into an image data according to an image format, a transfer unit that transfers, when receiving the predicted frame, the predicted frame to the converting unit, and transfers, when receiving the first or second video image frame, the received video image frame to the encoding unit, and a digest information generating unit that generates a digest information for each of image data encoded by the encoding unit.

First claim

Opening claim text (preview).

What is claimed is: 1. A digital signature apparatus comprising: a memory configured to store a program including a process; and a processor configured to execute the program, the process comprising: converting, based on a preceding first video image frame being independently replayable and a subsequent third video image frame not being independently replayable, a predicted frame being not independently replayable into a second video image frame being independently replayable,…

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What does patent US9053370B2 cover?
A digital signature apparatus including, a converting unit that converts, based on a first video image frame being independently replayable, a predicted frame being not independently replayable into a second video image frame being independently replayable, an encoding unit that encodes the first or second video image frame into an image data according to an image format, a transfer unit that t…
Who is the assignee on this patent?
Yoshioka Takashi, Fujitsu Ltd
What technology area does this patent fall under?
Primary CPC classification H04N21/23418. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 09 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).