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    • 20. 发明授权
    • Semiconductor arithmetic circuit
    • 半导体运算电路
    • US06606119B1
    • 2003-08-12
    • US09039126
    • 1998-03-13
    • Tadashi ShibataTadahiro Ohmi
    • Tadashi ShibataTadahiro Ohmi
    • H04N5208
    • H04N5/357H04N5/142
    • The present invention has as an object thereof to provide a semiconductor arithmetic circuit which is capable of conducting edge accentuation processing, edge detection processing, and noise removal by means of averaging processing of an image, using extremely simple circuitry. A semiconductor arithmetic circuit is provided with an amplifier circuit in which an input terminal is connected to the gate electrode of at least one MOS type transistor, a first signal input terminal, which is connected with the input terminal via a first switching element, and a plurality of second signal input terminals, which are connected with the input terminal via a capacity element; wherein a mechanism is provided for opening the first switching element in a state in which a first signal voltage is applied to the input terminal and a predetermined second input signal voltage group is applied to the second signal input terminals, and for thereafter applying a predetermined third input signal voltage group to the second signal input terminals, and wherein the amplifier circuit comprises a source follower circuit or a voltage follower circuit.
    • 本发明的目的是提供一种半导体运算电路,其能够通过使用非常简单的电路的图像的平均处理来进行边缘突出处理,边缘检测处理和噪声去除。 半导体运算电路设置有放大电路,其中输入端连接到至少一个MOS型晶体管的栅电极,经由第一开关元件与输入端连接的第一信号输入端和 多个第二信号输入端,经由电容元件与输入端连接; 其特征在于,提供一种机构,用于在将第一信号电压施加到输入端子并且将预定的第二输入信号电压组施加到第二信号输入端子的状态下打开第一开关元件,然后施加预定的第三 输入信号电压组到第二信号输入端,并且其中放大器电路包括源极跟随器电路或电压跟随器电路。