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    • 1. 发明授权
    • Multi-quantum well infrared photo-detector
    • 多量子阱红外光电探测器
    • US06504222B1
    • 2003-01-07
    • US09473156
    • 1999-12-28
    • Yoshihiro MiyamotoHironori NishinoYusuke MatsukuraToshio Fujii
    • Yoshihiro MiyamotoHironori NishinoYusuke MatsukuraToshio Fujii
    • H01L3100
    • B82Y20/00H01L31/035236H01L31/101
    • A multi-quantum well infrared photo-detector, in which a plurality of multi-quantum well layers having respective sensitivities for different wavelength ranges of infrared are layered via a common contact layer. The infrared photo-detector includes a switch where one end is connected to the above common contact layer, and a current integration unit which is connected to the other end of the above switch. First and second voltages are applied to first and second contact layers at the opposite side of first and second multi-quantum well layer respectively. The above switch is conducted for a predetermined time so that either voltage between the above common contact layer and the first contact layer or voltage between the above common contact layer and the second contact layer becomes higher than the other, and the above current integration unit is charged or discharged by the current which flows in the above multi-quantum well layers.
    • 一种多量子阱红外光电检测器,其中通过公共接触层层叠具有用于红外线的不同波长范围的各自灵敏度的多个多量子阱层。 红外光检测器包括一端连接到上述公共接触层的开关,以及连接到上述开关的另一端的电流积分单元。 第一和第二电压分别施加到第一和第二多量子阱层的相反侧的第一和第二接触层。 上述开关进行预定时间,使得上述公共接触层和第一接触层之间的电压或上述公共接触层和第二接触层之间的电压变得高于另一个,并且上述电流积分单元是 由在上述多量子阱层中流动的电流充电或放电。
    • 3. 发明授权
    • Image size transformation method for orthogonal transformation coded image
    • 用于正交变换编码图像的图像大小变换方法
    • US06473207B1
    • 2002-10-29
    • US09138557
    • 1998-08-24
    • Yoshihiro Miyamoto
    • Yoshihiro Miyamoto
    • H04N146
    • H04N19/90H04N19/48H04N19/60
    • In an image size transformation method for an orthogonal transformation coded image, orthogonal coefficients as coded data of an image are read out by blocks, after which an operation process for transforming the coefficients on the orthogonal coefficients is carried out. Due to this operation process, coefficients of Y blocks are obtained from coefficients of X blocks, by which the orthogonal coefficients after having the image size enlarged or reduced are outputted. Due to this structure, it is possible to simplify the decoding system. According to the image size transformation method of the present invention, orthogonal transformation coefficients are processed directly on the coefficients by which a transformation of high precision is possible, while there is no possibility that a transformation efficiency will deteriorate because of operation errors caused by inversion or filtering, as in the conventional case.
    • 在用于正交变换编码图像的图像尺寸变换方法中,作为图像的编码数据的正交系数被块读出,之后执行用于变换正交系数的系数的操作处理。 由于该操作过程,从X块的系数获得Y块的系数,由此输出具有放大或缩小图像尺寸的正交系数。 由于这种结构,可以简化解码系统。 根据本发明的图像尺寸变换方法,直接对可以进行高精度变换的系数进行正交变换系数,而由于由反转引起的运算误差,转换效率不会恶化, 过滤,如在常规情况下。
    • 10. 发明申请
    • VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING OR DECODING PROGRAM
    • 视频编码设备,视频解码设备,视频编码方法,视频解码方法,视频编码或解码程序
    • US20100177820A1
    • 2010-07-15
    • US12676207
    • 2008-09-05
    • Keiichi ChonoYoshihiro Miyamoto
    • Keiichi ChonoYoshihiro Miyamoto
    • H04N7/26
    • H04N19/93H04N19/136H04N19/196H04N19/21H04N19/91
    • Intended is to obtain a video encoding device, a video encoding method, and a video encoding program which enable to prevent reduction in compression efficiency caused by drastic changes in symbol occurrence probabilities in context adaptive coding, and a video decoding device, a video decoding method and a decoding program corresponding thereto.The video data 101 is input into video encoding device on a macroblock basis, and after quantization, the PCM determination unit 139 determines whether the coded data 123 is PCM mode or not. Even when the coded data 123 is PCM mode, the context updating unit 301 executes context updating processing so as to improve efficiency of binary arithmetic coding. According to the determination of PCM mode or non PCM mode, the third switch 148 supplies either binary arithmetic coding output or PCM coding output as its output data.
    • 旨在获得能够防止由上下文自适应编码中的符号发生概率剧烈变化引起的压缩效率的降低的视频编码装置,视频编码方法和视频编码程序,视频解码装置,视频解码方法 和与其对应的解码程序。 视频数据101以宏块为基础输入到视频编码装置中,并且在量化之后,PCM确定单元139确定编码数据123是否是PCM模式。 即使当编码数据123是PCM模式时,上下文更新单元301执行上下文更新处理,以提高二进制算术编码的效率。 根据PCM模式或非PCM模式的确定,第三开关148提供二进制算术编码输出或PCM编码输出作为其输出数据。