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1. 发明专利

JP2003044840A Information processing circuit 审中-公开
标题翻译：信息处理电路
公开(公告)号：JP2003044840A
公开(公告)日：2003-02-14
申请号：JP2001232965
申请日：2001-07-31
申请人： Atsushi Iwata , Takashi Morie , 穆岩田 , 隆森江
发明人： MORIE TAKASHI , MIYAKE MAKOTO , IWATA ATSUSHI , NAGATA MAKOTO
IPC分类号： G06T1/20
摘要： PROBLEM TO BE SOLVED: To provide a circuit for generating a pulse width modulation signal or a pulse phase modulation signal representing the difference between two analog values and to provide also a processing unit circuit which is of a small area and power saving and is fast in an image processing system characterized in applying the circuit to image processing and making a pixel parallel operation type processing unit update a state by an operation with an adjacent pixel processing unit.
SOLUTION: A binary signal representing the magnitude relation of two voltages and the pulse width modulation signal or pulse phase modulation signal having information of the absolute value of the difference between the two voltages are generated by holding two analog voltages in two capacitors and serially connecting the capacitors. Also, a subtraction circuit is sued for an image processing unit circuit to convert results operated on the basis of information of adjacent pixels as an analog voltage into a pulse phase modulation signal, and a nonlinear current source is switched with the signal to update a self-state.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种用于产生表示两个模拟值之间的差的脉宽调制信号或脉冲相位调制信号的电路，并且还提供一种处理单元电路，该电路具有小的面积和功率节省并且快速一种图像处理系统，其特征在于将电路应用于图像处理，并使像素并行操作类型处理单元通过与相邻像素处理单元的操作更新状态。解决方案：表示两个电压的幅度关系的二进制信号和具有两个电压差的绝对值的信息的脉宽调制信号或脉冲相位调制信号是通过在两个电容器中保持两个模拟电压而产生的，并且串联连接电容器此外，为了将图像处理单元电路的减法电路转换为根据作为模拟电压的相邻像素的信息而进行操作的结果，转换为脉冲相位调制信号，并且用信号切换非线性电流源来更新自身 -州。

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