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    • 52. 发明授权
    • Moving picture decoding device, moving picture decoding method, moving picture decoding system, integrated circuit, and program
    • 运动图像解码装置,运动图像解码方法,运动图像解码系统,集成电路和程序
    • US08811473B2
    • 2014-08-19
    • US13126040
    • 2010-06-16
    • Hiroshi Amano
    • Hiroshi Amano
    • H04N7/28H04N7/36H04N7/26H04N7/68
    • H04N19/0063H04N19/44H04N19/523H04N19/895
    • To provide a moving picture decoding device capable of continuing motion compensation even when an error is included in a filter coefficient for motion compensation. The moving picture decoding device includes: a decoding unit (1001) which decodes (i) a motion vector indicating a sub-pixel position and (ii) a filter coefficient for identifying a pixel value at the sub-pixel position, the motion vector and the filter coefficient being included in a coded stream; an error detecting unit (1002) which detects an error in the filter coefficient; a modifying unit (1010) which modifies one of the motion vector and the filter coefficient so as to enable identification of a pixel value at a pixel position for motion compensation, when the error is detected; and a motion compensation unit (1007) which performs motion compensation by identifying the pixel value at the pixel position using the modified one, when the error is detected.
    • 即使在用于运动补偿的滤波器系数中包含错误的情况下也能够提供能够继续运动补偿的运动图像解码装置。 运动图像解码装置包括:解码单元(1001),其解码(i)指示子像素位置的运动矢量,以及(ii)用于识别子像素位置处的像素值的滤波器系数,运动矢量和 滤波器系数包括在编码流中; 检测滤波器系数误差的误差检测单元(1002); 修改单元(1010),其修改所述运动矢量和所述滤波器系数中的一个,以便当检测到所述误差时能够识别用于运动补偿的像素位置处的像素值; 以及运动补偿单元(1007),当检测到错误时,通过使用修改的像素位置识别像素位置来执行运动补偿。
    • 56. 发明申请
    • MOVING IMAGE DECODING APPARATUS, MOVING IMAGE CODING APPARATUS, MOVING IMAGE DECODING CIRCUIT, AND MOVING IMAGE DECODING METHOD
    • 移动图像解码设备,移动图像编码设备,移动图像解码电路和移动图像解码方法
    • US20120147959A1
    • 2012-06-14
    • US13255267
    • 2011-03-02
    • Hiroshi AmanoTakeshi TanakaTakashi HashimotoYoshiteru Hayashi
    • Hiroshi AmanoTakeshi TanakaTakashi HashimotoYoshiteru Hayashi
    • H04N7/32
    • H04N19/82H04N19/117H04N19/43H04N19/44H04N19/513H04N19/61
    • A moving image decoding apparatus which enables reduction in the memory bandwidth and the memory access latency for the motion compensation filter coefficients for use in inter-picture prediction involving motion compensation using variable coefficients includes: a decoding unit (101) which decodes, from a coded stream, a plurality of motion compensation filter coefficients; a memory (109) for holding the motion compensation filter coefficients included in the coded stream; a filter coefficient storage unit (103) for holding at least one of the motion compensation filter coefficients which is required for the motion compensation; a motion compensation unit (107) which performs motion compensation using the required motion compensation filter coefficient held in the filter coefficient storage unit; and a filter coefficient transfer control unit (102) which writes, in the memory, the motion compensation filter coefficients decoded by the decoding unit, and transfers the required motion compensation filter coefficient from the memory to the filter coefficient storage unit, only when the required coefficient is not yet stored therein.
    • 一种运动图像解码装置,其能够减少使用可变系数的运动补偿的帧间预测中使用的运动补偿滤波器系数的存储器带宽和存储器访问等待时间,包括:解码单元, 流,多个运动补偿滤波器系数; 用于保持包含在编码流中的运动补偿滤波器系数的存储器(109) 滤波器系数存储单元,用于保持运动补偿所需的运动补偿滤波器系数中的至少一个; 使用保持在滤波器系数存储单元中的所需运动补偿滤波器系数进行运动补偿的运动补偿单元(107) 以及滤波器系数传递控制单元(102),其在存储器中写入由解码单元解码的运动补偿滤波器系数,并且将所需的运动补偿滤波器系数从存储器传送到滤波器系数存储单元,只有当所需的 系数尚未存储在其中。
    • 60. 发明申请
    • Ultraviolet light receiving element
    • 紫外光接收元件
    • US20090166674A1
    • 2009-07-02
    • US12227529
    • 2006-05-24
    • Motoaki IwayaSatoshi KamiyamaHiroshi AmanoIsamu Akasaki
    • Motoaki IwayaSatoshi KamiyamaHiroshi AmanoIsamu Akasaki
    • H01L31/0352
    • H01L29/2003H01L31/1126
    • In an ultraviolet light receiving element using a group III nitride semiconductor, the ultraviolet light receiving element having an enhanced light receiving sensitivity is provided. An electron is excited from a valence band to a conduction band 61 by means of a depleted layer generated by irradiating a light having energy larger than band gap energy of an undoped layer 44, and electron-hole pairs are generated. A band structure is varied by the generated electron-hole pairs, and thus a portion having an energy lower than that of a quasi-Fermi level 62 of an electron at a boundary between an undoped layer 43 and the undoped layer 44, so that a two-dimensional electron gas 63 is formed. Since the two-dimensional electron gas 63 mentioned above serves as a channel, a large current is flowed by applying a voltage between drain electrode 46-source electrode 7.
    • 在使用III族氮化物半导体的紫外光接收元件中,提供了具有增强的光接收灵敏度的紫外光接收元件。 通过照射具有大于未掺杂层44的带隙能量的能量的光而产生的耗尽层,从价带向导带61激发电子,并产生电子 - 空穴对。 通过产生的电子 - 空穴对,并且因此,在未掺杂层43和未掺杂层44之间的边界处,具有能量低于电子的准费米能级62的能量的部分的带结构变化,使得 形成二维电子气63。 由于上述二维电子束63用作沟道,所以通过在漏电极46源电极7之间施加电压而流过大电流。