会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Amplifying circuit
    • 放大电路
    • US07724089B2
    • 2010-05-25
    • US12274015
    • 2008-11-19
    • Kenichi MiyamotoHiroaki Ishii
    • Kenichi MiyamotoHiroaki Ishii
    • H03F3/45
    • H03F3/303G09G3/3685H03F2200/297
    • First and second voltage buffers are added to an amplifying circuit including input and output amplifying stages in which a P-MOS transistor and an N-MOS transistor operate as a push-pull circuit. An input of the first voltage buffer is connected to an output of the amplifying circuit, and an output of the first voltage buffer is connected via a first phase compensating capacitor to a gate electrode of the P-MOS transistor, and is connected via a second phase compensating capacitor to a gate electrode of the N-MOS transistor. An input of the second voltage buffer is connected to the output of the amplifying circuit, and an output of the second voltage buffer is connected via a third phase compensating capacitor to the gate electrode of the P-MOS transistor, and is connected via a fourth phase compensating capacitor to the gate electrode of the N-MOS transistor.
    • 将第一和第二电压缓冲器加到包括P-MOS晶体管和N-MOS晶体管作为推挽电路工作的输入和输出放大级的放大电路中。 第一电压缓冲器的输入端连接到放大电路的输出,第一电压缓冲器的输出经由第一相位补偿电容器连接到P-MOS晶体管的栅电极,并经由第二电压缓冲器 相位补偿电容器到N-MOS晶体管的栅电极。 第二电压缓冲器的输入端连接到放大电路的输出端,第二电压缓冲器的输出经由第三相位补偿电容器连接到P-MOS晶体管的栅电极,并通过第四电压缓冲器 N相MOS晶体管的栅电极相位补偿电容。
    • 10. 发明授权
    • Image processing apparatus
    • 图像处理装置
    • US4870499A
    • 1989-09-26
    • US237614
    • 1988-08-24
    • Yoshiyuki SuzukiHiroaki Ishii
    • Yoshiyuki SuzukiHiroaki Ishii
    • H04N1/405H04N1/409
    • H04N1/4092H04N1/4056
    • In an image processing apparatus, an image signal generator includes a ROM and a D/A converter. The ROM consists of gain conversion tables. A PWM signal generator includes a frequency divider, a flip-flop, an integrator, a voltage divider, and a comparator. The frequency divider is synchronized with the ROM in response to a sync selection signal. An output from the frequency divider is further frequency-divided by the flip-flop and then converted into a triangular wave signal by the integrator. The bias component of the triangular wave signal is adjusted by the voltage divider. The resultant signal supplied to one input terminal of the comparator is compared thereby with an output from the D/A converter, thereby obtaining a PWM signal. The peak and bottom values of the triangular wave signal are always matched with the maximum and minimum values of the output from the D/A converter.
    • 在图像处理装置中,图像信号发生器包括ROM和D / A转换器。 ROM由增益转换表组成。 PWM信号发生器包括分频器,触发器,积分器,分压器和比较器。 响应于同步选择信号,分频器与ROM同步。 来自分频器的输出由触发器进一步分频,然后由积分器转换为三角波信号。 三角波信号的偏置分量由分压器调节。 提供给比较器的一个输入端的合成信号与D / A转换器的输出进行比较,从而获得PWM信号。 三角波信号的峰值和最小值始终与D / A转换器的输出的最大值和最小值匹配。