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96 条记录 (耗时 0.041 秒)

    Information recording medium drive device
    71.
    发明申请
    Information recording medium drive device 审中-公开
    信息记录介质驱动装置

    公开(公告)号：US20050244001A1

    公开(公告)日：2005-11-03

    申请号：US10517783

    申请日：2004-04-05

    申请人： Satoshi Kitani ,  Jun Yonemitsu ,  Katsumi Muramatsu ,  Tomoyuki Asano ,  Yoshikazu Takashima

    发明人： Satoshi Kitani ,  Jun Yonemitsu ,  Katsumi Muramatsu ,  Tomoyuki Asano ,  Yoshikazu Takashima

    IPC分类号： G11B20/00 ,  H04L9/06 ,  H04L9/08 ,  H04N7/167

    CPC分类号： G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00528 ,  H04L9/0631 ,  H04L9/0869 ,  H04L2209/60

    摘要： The present invention provides a configuration capable of effectively preventing an encrypted content stored on an information-recording medium from being misused. In this configuration, a seed (seed 2) required for generating a block key to be applied to a process to decode an encrypted content is stored as information encrypted by using another block key Kb1. In addition, in a configuration where the seed (seed 2) needs to be transferred from a device to another, both the seed (seed 2) and a recording key K2 are transferred from the device to the other as information encrypted by using a session key. In such configurations, it is difficult to analyze the seed (seed 2) by acquisition of data from the information-recording medium or a data transmission line. Thus, difficulties to analyze a key generated by using the seed and analyze an encryption algorithm are increased. As a result, protection of contents at a high level of security can be implemented.

    摘要翻译： 本发明提供能够有效地防止存储在信息记录介质上的加密内容被滥用的配置。 在该结构中，作为通过使用另一个块密钥Kb 1加密的信息，存储用于生成要应用于解码加密内容的处理的块密钥所需的种子（种子2）。 此外，在种子（种子2）需要从设备传送到另一种的配置中，种子（种子2）和记录密钥K 2都从设备传送到另一个，作为通过使用 会话密钥。 在这种配置中，难以通过从信息记录介质或数据传输线路获取数据来分析种子（种子2）。 因此，分析使用种子生成的密钥并分析加密算法的难度增加。 因此，可以实现对高度安全性的内容的保护。

    Method and apparatus for encoding digital signal
    73.
    发明授权
    Method and apparatus for encoding digital signal 失效
    数字信号编码方法及装置

    公开(公告)号：US6061404A

    公开(公告)日：2000-05-09

    申请号：US8060

    申请日：1998-01-16

    申请人： Jun Yonemitsu ,  Motoki Kato

    发明人： Jun Yonemitsu ,  Motoki Kato

    IPC分类号： G11B20/10 ,  H04J3/14 ,  H04L13/08 ,  H04N5/85 ,  H04N5/926 ,  H04B14/04

    CPC分类号： G11B20/10527 ,  H04N19/115 ,  H04N19/137 ,  H04N19/14 ,  H04N19/184 ,  H04N19/60 ,  H04N5/9261 ,  H04N19/146 ,  H04N19/152 ,  H04N5/85

    摘要： An apparatus and a method of encoding a digital signal with which a transmission buffer (an encoder buffer) does not overflow even if recording of a signal on a recording medium is temporarily inhibited attributable to, for example, an external shock or even if transmission of a signal by broadcast or communication is temporarily inhibited because of unsatisfactory state of communication. In a case where recording on an optical disk is temporarily inhibited and an output of data from an encoder is interrupted attributable to, for example, an external shock during an operation for recording a bit stream obtained by encoding a video signal on the optical disk, an encoding bit rate is lowered. Thus, a fact that the encoder buffer overflows can be prevented.

    摘要翻译： 即使记录介质上的信号的记录被暂时禁止，即使传送缓冲器（编码器缓冲器）也不会溢出，即使外部冲击也可能发生数字信号的编码的装置和方法， 由于通信状态不令人满意，暂时禁止通过广播或通信的信号。 在光盘上的记录被暂时禁止并且来自编码器的数据的输出被中断的情况下，可归因于用于记录通过对光盘编码视频信号而获得的位流的操作期间的外部冲击， 编码比特率降低。 因此，可以防止编码器缓冲器溢出的事实。

    Motion picture encoding and/or decoding system
    75.
    发明授权
    Motion picture encoding and/or decoding system 失效
    运动图像编码和/或解码系统

    公开(公告)号：US5410350A

    公开(公告)日：1995-04-25

    申请号：US5311

    申请日：1993-01-15

    申请人： Motoki Kato ,  Yoichi Yagasaki ,  Jun Yonemitsu

    发明人： Motoki Kato ,  Yoichi Yagasaki ,  Jun Yonemitsu

    IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/50

    CPC分类号： H04N19/98 ,  H04N19/12 ,  H04N19/61

    摘要： A motion picture coding and decoding system is provided, which permits high picture quality to be obtained with less information amount than that in case of a system having the sole function of DCT coding, permits reduction of block distortion of reproduced picture and permits coding efficiency increase. One picture frame is divided into a plurality of blocks for block-by-block coding. At this time, discrete cosine transform (DCT) coding and intra-block non-transform coding (NTC) are adaptively switched one over to the other according to the character of pattern. In case of the intra-block non-transform coding, predictive values of block and quantizing width are transmitted. Each block is adaptively selected with sub block of frame construction or sub block of field construction.

    摘要翻译： 提供了一种运动图像编码和解码系统，其允许以比具有唯一DCT编码功能的系统的情况更少的信息量获得高图像质量，允许减少再现图像的块失真并且允许编码效率增加 。 一个画面被分成多个用于逐块编码的块。 此时，离散余弦变换（DCT）编码和块内非变换编码（NTC）根据模式的特性自适应地切换到另一个。 在块内非变换编码的情况下，发送块和量化宽度的预测值。 每个块由框架结构的子块或现场构造的子块自适应地选择。

    Key signal generating apparatus for digital chromakey system
    77.
    发明授权
    Key signal generating apparatus for digital chromakey system 失效
    数字色度系统的关键信号发生装置

    公开(公告)号：US4533937A

    公开(公告)日：1985-08-06

    申请号：US416329

    申请日：1982-09-09

    申请人： Kaichi Yamamoto ,  Jun Yonemitsu

    发明人： Kaichi Yamamoto ,  Jun Yonemitsu

    IPC分类号： H04N9/75 ,  H04N9/535

    CPC分类号： H04N9/75

    摘要： A key signal generating apparatus for a digital chromakey system for generating a key signal in accordance with the difference between a reference hue corresponding to a back color data and a hue of an input video data in U-V chroma signal coordinates, in which the gain of key signal is determined by quadratic curve groups in the U-V chroma signal coordinates.

    摘要翻译： 一种用于数字色度系统的键信号产生装置，用于根据UV色度信号坐标中的与背色数据相对应的参考色调和输入视频数据的色调之间的差产生一个键信号，其中键增益 信号由UV色度信号坐标中的二次曲线组确定。

    Image processing device and method
    79.
    发明授权
    Image processing device and method 失效
    图像处理装置及方法

    公开(公告)号：US08750631B2

    公开(公告)日：2014-06-10

    申请号：US13131896

    申请日：2009-12-09

    申请人： Yoshitomo Takahashi ,  Takuya Kitamura ,  Yoichi Yagasaki ,  Teruhiko Suzuki ,  Jun Yonemitsu

    发明人： Yoshitomo Takahashi ,  Takuya Kitamura ,  Yoichi Yagasaki ,  Teruhiko Suzuki ,  Jun Yonemitsu

    IPC分类号： G06K9/36

    CPC分类号： H04N19/33 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61 ,  H04N19/96

    摘要： The present invention relates to an image processing device and method whereby an image and so forth that a contents producer intends can be displayed in a case where a stereoscopic image content is displayed as a 2D image.A generating unit 13 generates multiplexed data including viewpoint image data for the left eye, and viewpoint image data for the right eye that are two viewpoints of image data, and a view switching flag for specifying image data used for display of a 2D image, of the viewpoint image data for the left eye and the viewpoint image data for the right eye thereof. With decoding of multiplexed data, a view switching flag is extracted from the multiplexed data, and image data used for display of a 2D image is selected from viewpoint image data for the left eye and viewpoint image data for the right eye following the view switching flag thereof. The present invention may be applied to an encoding device or the like for encoding a stereoscopic vision image made up of a multiple-viewpoint image, for example.

    摘要翻译： 本发明涉及一种图像处理装置和方法，其中在立体图像内容被显示为2D图像的情况下，可以显示内容制作者想要的图像等。 生成单元13生成包括左眼的视点图像数据和作为图像数据的两个视点的用于右眼的视点图像数据的多路复用数据和用于指定用于显示2D图像的图像数据的视图切换标志， 左眼的视点图像数据和右眼的视点图像数据。 通过复用数据的解码，从多路复用数据中提取视图切换标志，从视觉图像数据中选择用于2D图像的显示的图像数据，并且在视图切换标志之后从右眼的视点图像数据中选择 其中。 例如，本发明可以应用于编码由多视点图像构成的立体视觉图像的编码装置等。

    ENCODING DEVICE, ENCODING METHOD, DECODING DEVICE, AND DECODING METHOD
    80.
    发明申请
    ENCODING DEVICE, ENCODING METHOD, DECODING DEVICE, AND DECODING METHOD 有权
    编码设备，编码方法，解码设备和解码方法

    公开(公告)号：US20130141535A1

    公开(公告)日：2013-06-06

    申请号：US13816591

    申请日：2011-08-31

    申请人： Shinobu Hattori ,  Yoshitomo Takahashi ,  Jun Yonemitsu

    发明人： Shinobu Hattori ,  Yoshitomo Takahashi ,  Jun Yonemitsu

    IPC分类号： H04N13/00

    CPC分类号： H04N13/161 ,  H04N13/194 ,  H04N19/597

    摘要： The present technology relates to an encoding device, an encoding method, a decoding device, and a decoding method capable of suppressing the amount of information without degrading the image quality of an image of a viewpoint that is used when the compatibility is secured in a case where a multi-viewpoint image is encoded. A compatible encoder generates a compatible stream by encoding an image A1 that is a compatible image. An image converting unit lowers the resolution of images B1 and C1 that are auxiliary images. An auxiliary encoder generates an encoded stream of the auxiliary image by encoding the auxiliary image of which the resolution is lowered. A multiplexing unit transmits the compatible stream and the encoded stream of the auxiliary image. The present technology can be applied to, for example, an encoding device that encodes a 3D image of the multi-viewpoint mode.

    摘要翻译： 本技术涉及一种编码装置，编码方法，解码装置和解码方法，其能够在不降低在兼容性被确保的情况下使用的视点的图像的图像质量的同时抑制信息量 其中多视点图像被编码。 兼容编码器通过对作为兼容图像的图像A1进行编码来生成兼容流。 图像转换单元降低作为辅助图像的图像B1和C1的分辨率。 辅助编码器通过对分辨率降低的辅助图像进行编码来生成辅助图像的编码流。 复用单元发送辅助图像的兼容流和编码流。 本技术可以应用于例如编码多视点模式的3D图像的编码装置。