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    • 1. 发明授权
    • Semiconductor integrated circuit device
    • 半导体集成电路器件
    • US07397271B2
    • 2008-07-08
    • US11502572
    • 2006-08-11
    • Mototsugu HamadaTsuyoshi NishikawaToshiyuki Furusawa
    • Mototsugu HamadaTsuyoshi NishikawaToshiyuki Furusawa
    • H03K17/16H03K19/003
    • H03K19/17736H03K19/1736H03K19/17728H03K19/1778
    • A semiconductor integrated circuit device has a combinational logic circuit including one or plural logic cells connected in series. At least one of the logic cells has: a standard cell which includes a MIS transistor, the standard cell including an input terminal to which an output signal from a previous stage is inputted as an input signal and an output terminal, and the standard cell performing a predetermined logic operation based on the input signal and outputting a result of the logic operation as an output signal from the output terminal; a first conductivity-type first MIS transistor which is provided between the output terminal of the standard cell and a first power supply voltage, the first MIS transistor including a control terminal to which a circuit control signal is inputted, and the first MIS transistor supplying the first power supply voltage to the output terminal of the standard cell based on the circuit control signal in order to bring the standard cell into an operation-stopped state; and a second conductivity-type second MIS transistor which is provided between the standard cell and a second power supply voltage, the second MIS transistor including a control terminal to which the circuit control signal is inputted, and the second MIS transistor cutting off a leakage current of the MIS transistor in the standard cell based on the circuit control signal in order to bring the standard cell into the operation-stopped state.
    • 半导体集成电路器件具有包括串联连接的一个或多个逻辑单元的组合逻辑电路。 所述逻辑单元中的至少一个具有:包括MIS晶体管的标准单元,所述标准单元包括输入来自前一级的输出信号的输入端作为输入信号和输出端,所述标准单元执行 基于所述输入信号进行预定的逻辑运算,并输出所述逻辑运算的结果作为来自所述输出端子的输出信号; 设置在标准单元的输出端子与第一电源电压之间的第一导电型第一MIS晶体管,所述第一MIS晶体管包括输入电路控制信号的控制端子和提供电路控制信号的第一MIS晶体管 基于电路控制信号向标准单元的输出端施加第一电源电压,以使标准单元进入操作停止状态; 以及设置在所述标准单元和第二电源电压之间的第二导电型第二MIS晶体管,所述第二MIS晶体管包括输入所述电路控制信号的控制端子,所述第二MIS晶体管切断漏电流 的基于电路控制信号的标准单元中的MIS晶体管,以使标准单元进入操作停止状态。
    • 2. 发明申请
    • SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
    • 半导体集成电路设备
    • US20080238485A1
    • 2008-10-02
    • US12132428
    • 2008-06-03
    • Mototsugu HAMADATsuyoshi NishikawaToshiyuki Furusawa
    • Mototsugu HAMADATsuyoshi NishikawaToshiyuki Furusawa
    • H03K19/096
    • H03K19/17736H03K19/1736H03K19/17728H03K19/1778
    • A semiconductor integrated circuit device has a combinational logic circuit including one or plural logic cells connected in series. At least one of the logic cells includes a standard cell which includes a MIS transistor, an input terminal to which an output signal from a previous stage is inputted as an input signal, and an output terminal. A first conductivity-type first MIS transistor which is provided between the output terminal of the standard cell and a first power supply voltage, the first MIS transistor including a control terminal to which a circuit control signal is inputted, and the first MIS transistor supplying the first power supply voltage to the output terminal of the standard cell based on the circuit control signal in order to bring the standard cell into an operation-stopped state. A second conductivity-type second MIS transistor cuts off a leakage current of the MIS transistor in the standard cell.
    • 半导体集成电路器件具有包括串联连接的一个或多个逻辑单元的组合逻辑电路。 逻辑单元中的至少一个包括标准单元,其包括MIS晶体管,作为输入信号输入来自前一级的输出信号的输入端子和输出端子。 第一导电型第一MIS晶体管,设置在标准单元的输出端子与第一电源电压之间,第一MIS晶体管包括输入电路控制信号的控制端子,以及第一MIS晶体管, 基于电路控制信号向标准单元的输出端子提供第一电源电压,以使标准单元进入操作停止状态。 第二导电型第二MIS晶体管截止在标准单元中的MIS晶体管的漏电流。
    • 3. 发明授权
    • Motion vector estimation circuit and method
    • 运动矢量估计电路及方法
    • US06370194B2
    • 2002-04-09
    • US09238122
    • 1999-01-27
    • Tsuyoshi Nishikawa
    • Tsuyoshi Nishikawa
    • H04N712
    • H04N5/145G06T7/223G06T2207/10016
    • A motion vector estimation circuit includes an assigning element having a grouping part for dividing candidates in a search range into a plurality of groups, and a part for determining the order for accumulation being carried out preferentially from a group having a high possibility of including a true motion vector; an accumulating element for parallel inputting original image data and reference image data to accumulate an absolute value of a difference between both data according to the order determined by the assigning element; a circuit for comparing the output of the accumulating element with minimum-value information for management; a stopping element having a separate stop circuit for stopping operations of each of the accumulating circuits after detecting the minimum-value information; and a control element for controlling the accumulating element and the stopping element.
    • 运动矢量估计电路包括具有分组部分的分配元件,用于将搜索范围中的候选分成多个组,并且优选地从具有包括真实的可能性的组的组中确定用于累积的顺序的部分 运动矢量 用于并行输入原始图像数据和参考图像数据的累积元件,以根据由分配元素确定的顺序累积两个数据之间的差异的绝对值; 用于将累积元素的输出与用于管理的最小值信息进行比较的电路; 具有用于在检测到所述最小值信息之后停止每个所述累积电路的操作的单独的停止电路的停止元件; 以及用于控制累积元件和止动元件的控制元件。
    • 6. 发明授权
    • Motion pictures sending apparatus and motion pictures communication apparatus
    • 电影发送装置和动态影像通信装置
    • US06816192B1
    • 2004-11-09
    • US09663198
    • 2000-09-18
    • Tsuyoshi Nishikawa
    • Tsuyoshi Nishikawa
    • H04N576
    • H04N7/148H04N7/147H04N19/423H04N19/61
    • A motion pictures sending apparatus has a camera interface for receiving an image signal from a camera, a frame conversion unit for carrying out coordinates conversion on the received image signal and generating image data, a memory for storing the image data, an image processing unit for processing the image data from the memory and providing processed data, an output interface for transferring the processed data to a communication interface unit, and a memory control unit for stopping the updating of image data to the memory in response to an input signal. When required, the apparatus keeps the same image in the memory and continuously sends the image so that the quality and clarity of the sent image may gradually improve.
    • 一种电影发送装置具有:摄像机接口,用于从摄像机接收图像信号;帧转换单元,用于对所接收的图像信号执行坐标转换并生成图像数据;存储器,用于存储图像数据;图像处理单元,用于 处理来自存储器的图像数据并提供经处理的数据,用于将经处理的数据传送到通信接口单元的输出接口,以及用于响应于输入信号停止将图像数据更新到存储器的存储器控​​制单元。 当需要时,设备将相同的图像保持在存储器中并且连续地发送图像,使得发送的图像的质量和清晰度可以逐渐改善。
    • 7. 发明授权
    • System and method for estimating motion vector in macro block
    • 用于估计宏块中的运动矢量的系统和方法
    • US6031582A
    • 2000-02-29
    • US993747
    • 1997-12-19
    • Tsuyoshi NishikawaYoshiro TsuboiMasafumi Takahashi
    • Tsuyoshi NishikawaYoshiro TsuboiMasafumi Takahashi
    • H04N11/04G06T1/20G06T7/20H04N19/105H04N19/136H04N19/176H04N19/196H04N19/423H04N19/50H04N19/51H04N7/30H04N7/32
    • H04N19/557H04N19/51
    • A motion vector estimating system prepares a predetermined range of a frame/field of image data as a macro block, selects a plurality of proposed motion vectors in the reference region, calculates a signal-strength difference between pixels corresponding to each of the proposed motion vectors of current and reference images. The system comprises: an accumulating element for deriving an accumulation result in parallel on the basis of the signal-strength difference by means of accumulating circuits connected in parallel as a pipeline; an accumulation stopping element having separate stop circuits for separately stopping the accumulation of the accumulating element every n accumulating circuits; and a control element for controlling the supply of the current image data and the reference image data for proposed motion vectors for each of the accumulating circuits, and for outputting a separate stop signal to the accumulation stopping element for stopping the accumulation for the proposed motion vector of the accumulating circuits immediately after the accumulated value of the absolute values of the differences between the signal values of picture elements of the current image and the reference image exceeds a predetermined value. Thus, it is possible to suitably omit unnecessary accumulation in a pipeline processing for estimating a motion vector, so that it is possible to increase the processing speed and to decrease the electric power consumption.
    • 运动矢量估计系统准备作为宏块的图像数据的帧/场的预定范围,在参考区域中选择多个提出的运动矢量,计算与提出的每个运动矢量相对应的像素之间的信号强度差 的当前和参考图像。 该系统包括:累积元件,用于通过累积作为管道并联连接的电路,基于信号强度差导出累积结果; 累积停止元件具有分开的停止电路,用于每n个累积电路分别停止累积元件的累积; 以及控制元件,用于控制针对每个累加电路的所提出的运动矢量的当前图像数据和参考图像数据的供给,并且用于向累积停止元件输出单独的停止信号,以停止所提出的运动矢量的累积 紧接在当前图像的像素的信号值与参考图像之间的差的绝对值的累加值之后的累积电路的值超过预定值。 因此,可以适当地省略用于估计运动矢量的流水线处理中的不必要的累积,从而可以提高处理速度并降低电力消耗。
    • 8. 发明申请
    • Semiconductor integrated circuit device
    • 半导体集成电路器件
    • US20070075738A1
    • 2007-04-05
    • US11502572
    • 2006-08-11
    • Mototsugu HamadaTsuyoshi NishikawaToshiyuki Furusawa
    • Mototsugu HamadaTsuyoshi NishikawaToshiyuki Furusawa
    • H03K19/177
    • H03K19/17736H03K19/1736H03K19/17728H03K19/1778
    • A semiconductor integrated circuit device has a combinational logic circuit including one or plural logic cells connected in series. At least one of the logic cells has: a standard cell which includes a MIS transistor, the standard cell including an input terminal to which an output signal from a previous stage is inputted as an input signal and an output terminal, and the standard cell performing a predetermined logic operation based on the input signal and outputting a result of the logic operation as an output signal from the output terminal; a first conductivity-type first MIS transistor which is provided between the output terminal of the standard cell and a first power supply voltage, the first MIS transistor including a control terminal to which a circuit control signal is inputted, and the first MIS transistor supplying the first power supply voltage to the output terminal of the standard cell based on the circuit control signal in order to bring the standard cell into an operation-stopped state; and a second conductivity-type second MIS transistor which is provided between the standard cell and a second power supply voltage, the second MIS transistor including a control terminal to which the circuit control signal is inputted, and the second MIS transistor cutting off a leakage current of the MIS transistor in the standard cell based on the circuit control signal in order to bring the standard cell into the operation-stopped state.
    • 半导体集成电路器件具有包括串联连接的一个或多个逻辑单元的组合逻辑电路。 所述逻辑单元中的至少一个具有:包括MIS晶体管的标准单元,所述标准单元包括输入来自前一级的输出信号的输入端作为输入信号和输出端,所述标准单元执行 基于所述输入信号进行预定的逻辑运算,并输出所述逻辑运算的结果作为来自所述输出端子的输出信号; 设置在标准单元的输出端子与第一电源电压之间的第一导电型第一MIS晶体管,所述第一MIS晶体管包括输入电路控制信号的控制端子和提供电路控制信号的第一MIS晶体管 基于电路控制信号向标准单元的输出端施加第一电源电压,以使标准单元进入操作停止状态; 以及设置在所述标准单元和第二电源电压之间的第二导电型第二MIS晶体管,所述第二MIS晶体管包括输入所述电路控制信号的控制端子,所述第二MIS晶体管切断漏电流 的基于电路控制信号的标准单元中的MIS晶体管,以使标准单元进入操作停止状态。
    • 9. 发明授权
    • Memory consolidated image processing LSI, image processing system with same, and image accessing method using same
    • 内存整合图像处理LSI,具有相同的图像处理系统,以及使用其的图像访问方法
    • US06750871B2
    • 2004-06-15
    • US09773625
    • 2001-02-02
    • Tsuyoshi Nishikawa
    • Tsuyoshi Nishikawa
    • G06F1202
    • H04N19/423G09G5/39G09G2360/122H04N19/61
    • In a memory consolidated image processing LSI for reading data, a DRAM for storing image data for a plurality of page ranges which are formed by segmenting an image plane corresponding to a display screen in order to page-access a memory region of the DRAM, and image data for a plurality of word ranges which are formed by segmenting each of the page ranges in order to word-access the memory region, is consolidated with an image processing circuit. The size of each of the page ranges is set so that the multiplied value of the power consumption per pre-charge in a power consumption model of a memory by an average number of pre-charges is the substantially minimum value, and the size of each of the word ranges is set so that the multiplied value of the power consumption per word access in the power consumption model of the memory by an average number of word accesses is the substantially minimum value. Thus, it is possible to reduce the power consumption when a page access and a word access are carried out, so that the memory consolidated image processing LSI can be mounted on a portable image processing system.
    • 在用于读取数据的存储器合并图像处理LSI中,存储用于存储多个页面范围的图像数据的DRAM,所述图像数据通过分割对应于显示屏幕的图像平面而形成,以便对DRAM的存储区域进行页面访问,以及 通过分割每个页面范围以便对存储区域进行字访问而形成的多个字段的图像数据与图像处理电路合并。 设置每个页面范围的大小,使得存储器的功耗模型中的每个预充电的功率乘以平均预充电数量的相乘值是基本上最小的值,并且每个 设定字范围,使得存储器的功耗模型中的每个字访问的功耗乘以平均字访问量的值是基本上最小的值。 因此,可以在执行页面访问和字访问时降低功耗,从而可以将内存整合图像处理LSI安装在便携式图像处理系统上。
    • 10. 发明授权
    • System for estimating motion vector with instant estimation of motion
vector
    • 利用运动矢量的即时估计估计运动矢量的系统
    • US6148108A
    • 2000-11-14
    • US7603
    • 1998-01-15
    • Tsuyoshi Nishikawa
    • Tsuyoshi Nishikawa
    • H04N19/50G06T7/20H04N5/14H04N19/105H04N19/114H04N19/139H04N19/176H04N19/196H04N19/423H04N19/503H04N19/51H04N19/527H04N19/557H04N19/61H04N19/625G06K9/46H04N5/16H04N7/12
    • H04N19/527G06T7/2033H04N19/54H04N5/145
    • A motion vector estimating system comprises a current image storing unit 1, a reference image storing unit 2, a motion vector estimating circuit 3 for estimating a motion of a current image in relation to a reference image, and a global motion vector estimating circuit 10. The global motion vector estimating circuit 10 comprises at least a feature setting part 11 for setting and recording a feature being a partial region distinguishable from other regions of a principle object in a picture, a feature-coordinates extracting part 12 for searching the current image for the feature to extract the coordinates of the feature, and a feature-coordinates storing part 13 for storing the coordinates of the feature. When the feature-coordinates extracting part 12 extracts the coordinates of the feature from the current image, the motion vector estimating system derives a difference between the feature coordinates stored in the storing part 13 and the extracted feature coordinates on the basis of a feature presence information outputted from the feature-coordinates extracting part 12, in order to estimate a global motion vector. When the feature-coordinates extracting part 12 has not could extract the feature, the motion vector estimating system carries out the usual motion vector estimation. Thus, in addition to the usual motion vector estimation, the presence and coordinates of a feature are extracted from the whole screen of a picture to detect a motion vector to retrieve a correct motion vector at the initial stage of the retrieval, so that it is possible to save the electric power and decrease the estimation time.
    • 运动矢量估计系统包括当前图像存储单元1,参考图像存储单元2,用于估计与参考图像相关的当前图像的运动的运动矢量估计电路3和全局运动矢量估计电路10。 全局运动矢量估计电路10至少包括用于设置和记录与图像中的主要对象的其他区域区分开的部分区域的特征的特征设定部分11,用于搜索当前图像的特征坐标提取部分12 提取特征的坐标的特征,以及用于存储特征的坐标的特征坐标存储部13。 当特征坐标提取部分12从当前图像中提取特征的坐标时,运动矢量估计系统基于特征呈现信息导出存储在存储部分13中的特征坐标与提取的特征坐标之间的差异 从特征坐标提取部分12输出,以估计全局运动矢量。 当特征坐标提取部分12不能提取特征时,运动矢量估计系统执行通常的运动矢量估计。 因此,除了通常的运动矢量估计之外,从图像的整个画面提取特征的存在和坐标以检测运动矢量以在检索的初始阶段检索正确的运动矢量,使得它是 可以节省电力并减少估计时间。