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    • 3. 发明公开
    • Apparatus and method for preparing modified data to prevent unauthorized reading/execution of original data
    • 装置和方法用于制备改性数据,以防止对原始数据authorisée的播放或不执行
    • EP1353332A1
    • 2003-10-15
    • EP03290913.7
    • 2003-04-11
    • Hudson Soft Co., Ltd.VICTOR COMPANY OF JAPAN, LIMITED
    • Yonekawa, MasakiHirayoshi, Takuma 302 Riessent Satozuka
    • G11B20/00
    • G11B20/0063G11B20/00086G11B20/00927
    • An apparatus for preventing unauthorized reading/execution which does not necessarily require an extra storage region, but controls adverse effects to operating environment such as OS or the like, and contributes to restricting diffusion or distribution of unauthorized copies. An original CD-ROM readable by a driver stores original data, which in part contains modified data of a different value from a predetermined value to be generated by the driver. A copied CD-ROM stores copied data of the original data, and data of such predetermined value as generated by the driver at a time of making the copy. To prevent execution of data that is to be read by the driver, an apparatus for preventing unauthorized reading/execution (181) is provided with a modified data detecting unit (182) capable of detecting modified data from the data stored in the original CD-ROM or the copied CD-ROM, and a copied CD-ROM performing unit (195) for preventing execution of data by read-out of the driver, in response to failure of detecting the modified data by the modified data detecting unit (182).
    • 用于防止未授权读/执行魁不一定需要额外的存储区,旨在控制不利影响,如操作环境OS等,并且有助于限制广播或非法拷贝的散布的装置。 一原始CD-ROM由驾驶员原始数据存储可读,魁并进包含修改由驾驶员来产生从预定值不同的值的数据。 复制的CD存储如在使复制的时间由驾驶员产生的复制的原始数据的数据,并且这样的预定值的数据。 为了防止要由驱动器中,为了防止未授权的读取/执行(181)的装置中读出的数据的预防执行设置有修改的数据检测单元(182),其能够检测从在原始CD存储的数据修改后的数据 ROM或复制的CD-ROM,和用于防止由读出的驾驶员的数据的执行的复制CD-ROM执行单元(195),响应于由所述经修改的数据检测部,检测所述修改后的数据的故障(182) 。
    • 7. 发明公开
    • Method and apparatus for coding moving images
    • 用于编码运动图像的方法和设备
    • EP1014727A2
    • 2000-06-28
    • EP99310257.3
    • 1999-12-20
    • Hudson Soft Co., Ltd.
    • Kawashima, Miyuki, c/o Hudson Soft Co., LtdMiura, Takashi, c/o Hudson Soft Co., LtdItagaki, Fumihiko, c/o Hudson Soft Co., Ltd
    • H04N7/36H04N7/30
    • G06T9/008H04N19/649
    • A method and an apparatus for coding a moving image, capable of obtaining high image quality and high rate of data compression, are provided. A recording medium for recording a program of such coding is also provided. The method according to the invention comprises the steps of comparing current-image pixel block B to be coded and preceding-image pixel block within a predetermined region R of the preceding frame, seeking a specific preceding-image pixel block F minimizing matching error between pixel block B and pixel block F, and, if the matching error exceeds an acceptable value, obtaining one or more orthogonal base systems for approximating AC component vector in current-image pixel block B by inter-frame adaptive orthogonal transformation having, as nest thereof, the preceding image data within predetermined region N including pixel block F, and coding thereby the image data. If the matching error does not exceed the acceptable value, current-image pixel block B is coded based on moving vector indicating specific preceding-image pixel block F.
    • 提供了一种能够获得高图像质量和高数据压缩率的用于编码运动图像的方法和设备。 还提供了用于记录这种编码的程序的记录介质。 根据本发明的方法包括以下步骤:比较要编码的当前图像像素块B和先前帧的预定区域R内的前一图像像素块,寻找使像素之间的匹配误差最小的特定前一图像像素块F 块B和像素块F,并且如果匹配误差超过可接受值,则通过帧间自适应正交变换获得用于近似当前图像像素块B中的AC分量矢量的一个或多个正交基系统, 包括像素块F的预定区域N内的先前图像数据,并由此对图像数据进行编码。 如果匹配误差未超过可接受值,则基于指示特定先前图像像素块F的运动矢量对当前图像像素块B进行编码。