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1.发明授权Contents rendering control method, contents reproducing equipment, and contents distribution equipment 失效内容呈现控制方法，内容再现设备和内容分发设备公开(公告)号：US06865677B1
公开(公告)日：2005-03-08
申请号：US09659551
申请日：2000-09-11
IPC分类号： G06F12/14 , G06F12/00 , G06F21/10 , G06F21/16 , G06F21/62 , G09C5/00 , H04N7/08 , H04N7/081 , H04N7/16 , H04N7/173 , H04N21/2362 , H04N21/431 , H04N21/454 , H04N21/8358
CPC分类号： H04N7/16 , H04N21/8358
摘要： To enable the control of rendering contents in part by using digital watermark technique:a contents serving center for embedding watermark in contents 4 embeds control information as digital watermarks within at least one of a plurality of blocks constituting electronic data by which contents are represented, thereby specifying the application of filtering to a part of the contents corresponding to the block; a contents distribution center 1 distributes the watermark-including contents to a receiving terminal 2 where checks the blocks of the received data to detect whether the control information as digital watermarks is embedded therein and applies the filtering to the block for which the embedded control information embedded has been detected in advance of reproducing the contents.
摘要翻译： 为了能够通过使用数字水印技术来部分地进行渲染内容的控制：在内容4中嵌入水印的内容服务中心将作为数字水印的控制信息嵌入构成表示内容的电子数据的多个块中的至少一个中，从而 指定对与块相对应的内容的一部分的过滤的应用; 内容分配中心1将含水印的内容分发给接收终端2，在接收终端2中检查接收到的数据的块以检测作为数字水印的控制信息是否被嵌入其中，并将该过滤应用于嵌入了嵌入控制信息的块 在再现内容之前已被检测到。
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2.发明授权公开(公告)号：US07047412B2
公开(公告)日：2006-05-16
申请号：US09798928
申请日：2001-03-06
CPC分类号： G06T1/0028 , G06Q20/401 , G06T2201/0051 , H04N1/32101 , H04N1/32144 , H04N1/32208 , H04N1/32229 , H04N1/32235 , H04N1/32251 , H04N2201/3225 , H04N2201/3233 , H04N2201/327 , H04N2201/3274
摘要： To lighten the processing load of embedding a digital watermark in content data, a preliminary process (embedding strength map generating process) run by a preprocessing section and the main process (digital watermark embedding process) run by a man processing section are run mutually independently. Specifically, the preliminary process of the preprocessing section is run each time new content data is stored to the content data database, and the main process of the main processing section is run when a content delivery request is received from a receiving terminal (client).
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公开(公告)号：US07308096B2
公开(公告)日：2007-12-11
申请号：US10196508
申请日：2002-07-17
申请人： Katsuyuki Okeya , Shinichiro Harano
发明人： Katsuyuki Okeya , Shinichiro Harano
CPC分类号： G06F7/725 , G06F2207/7228
摘要： In scalar multiplication method in which a point on an elliptic curve is randomized, but yet scalar multiplication can be calculated by the computational cost as much as that without randomization, an operation is carried out upon a point randomized and a point not randomized in a scalar multiplication method to calculate a scalar-multiplied point from a scalar value and a point on an elliptic curve. The result of the operation is randomized while the computational cost becomes as much as that without randomization.
摘要翻译： 在椭圆曲线上的点被随机化的标量乘法中，可以通过与没有随机化的计算成本一样的计算成本来计算标量乘法，在随机化的点和不随机化的点中进行操作 乘法方法从标量值和椭圆曲线上的点计算标量相乘点。 操作的结果是随机化的，而计算成本变得与随机化一样多。
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