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    • 5. 发明授权
    • Noise-resistant pulse width modulator
    • 抗噪声脉宽调制器
    • US06969980B1
    • 2005-11-29
    • US10850164
    • 2004-05-21
    • Liang-Pin TaiKent HwangJian-Rong HuangKuo-Ping LiuCheng-Hsuan FanKo-Cheng WangYu-Fan Liao
    • Liang-Pin TaiKent HwangJian-Rong HuangKuo-Ping LiuCheng-Hsuan FanKo-Cheng WangYu-Fan Liao
    • G05F1/40G05F1/44H02M1/08
    • H02M1/08
    • A pulse width modulator includes an amplifier module, a comparator module, and a filter module. The amplifier module receives a feedback voltage signal from a passive network, and generates first and second non-inverted voltage signals and first and second inverted voltage signals in response to the feedback voltage signal. The comparator module receives the first and second non-inverted voltage signals and the first and second inverted voltage signals, and provides first and second differential voltage signals corresponding to the first and second non-inverted voltage signals and the first and second inverted voltage signals. The filter module is coupled between the amplifier module and the comparator module, and is operable so as to attenuate high frequency components of the first and second non-inverted voltage signals. As such, the presence of noise in the feedback voltage signal does not affect differential operation of the comparator module.
    • 脉冲宽度调制器包括放大器模块,比较器模块和滤波器模块。 放大器模块从无源网络接收反馈电压信号,并响应于反馈电压信号产生第一和第二非反相电压信号以及第一和第二反相电压信号。 比较器模块接收第一和第二非反相电压信号以及第一和第二反相电压信号,并提供对应于第一和第二非反相电压信号以及第一和第二反相电压信号的第一和第二差分电压信号。 滤波器模块耦合在放大器模块和比较器模块之间,并且可操作以便衰减第一和第二非反相电压信号的高频分量。 因此,反馈电压信号中的噪声的存在不会影响比较器模块的差分工作。
    • 7. 发明授权
    • Computer chip set for computer mother board referencing various clock rates
    • 计算机芯片组用于计算机主板,参考各种时钟频率
    • US06202167B1
    • 2001-03-13
    • US09099977
    • 1998-06-19
    • Jiin LaiHeng-Chen HoKuo-Ping Liu
    • Jiin LaiHeng-Chen HoKuo-Ping Liu
    • G06F108
    • G06F1/08
    • A computer chip set is devised for use on a computer mother board with at least two clock rates including a first clock rate and a second clock rate for the purpose of converting an input signal referencing either the first or second clock rate to an output signal referencing the other clock rate. The first and second clock rates are in virtual synchronism and have a fixed ratio between them. The computer chip set utilizes a phase signal generator capable of generating a set of phase signals and a signal conversion logic circuit for generating the output signal referencing one of the first and second clock rates other than the one referenced by the input signal. This computer chip set can allow the computer mother board to be operated without waiting a state so that the data processing efficiency of the computer mother board can be enhanced. A multiplexer means used in the computer chip set of the invention has an output which is selectively multiplexed between the first clock rate and the second clock rate to serve as a third clock signal. This computer chip set allows the designer to use a slower clock rate to drive the DRAM.
    • 计算机芯片组被设计为在具有至少两个时钟速率的计算机母板上使用,包括第一时钟速率和第二时钟速率,用于将参考第一或第二时钟速率的输入信号转换为参考的输出信号 另一个时钟速率。 第一和第二时钟速率是虚拟同步的,并且它们之间具有固定的比例。 计算机芯片组利用能够产生一组相位信号的相位信号发生器和信号转换逻辑电路,用于产生参考第一和第二时钟速率之一的输出信号,而不是由输入信号所参考的那个。 该计算机芯片组可以允许计算机母板在不等待状态的情况下操作,从而可以提高计算机母板的数据处理效率。 在本发明的计算机芯片组中使用的多路复用器装置具有在第一时钟速率和第二时钟速率之间选择性地多路复用以用作第三时钟信号的输出。 该计算机芯片组允许设计者使用较慢的时钟速率来驱动DRAM。
    • 8. 发明授权
    • Computer chip set for computer mother board referencing various clock
rates
    • 计算机芯片组用于计算机主板,参考各种时钟频率
    • US06079027A
    • 2000-06-20
    • US100515
    • 1998-06-19
    • Jiin LaiHeng-Chen HoKuo-Ping Liu
    • Jiin LaiHeng-Chen HoKuo-Ping Liu
    • G06F1/08G06F1/04
    • G06F1/08
    • A computer chip set is devised for use on a computer mother board with at least two clock rates including a first clock rate and a second clock rate for the purpose of converting an input signal referencing either the first or second clock rate to an output signal referencing the other clock rate. The first and second clock rates are in virtual synchronism and have a fixed ratio between them. The computer chip set utilizes a phase signal generator capable of generating a set of phase signals and a signal conversion logic circuit for generating the output signal referencing one of the first and second clock rates other than the one referenced by the input signal. This computer chip set can allow the computer mother board to be operated without waiting a state so that the data processing efficiency of the computer mother board can be enhanced. A multiplexer means used in the computer chip set of the invention has an output which is selectively muliplexed between the first clock rate and the second clock rate to serve as a third clock signal. This computer chip set allows the designer to use a slower clock rate to drive the DRAM.
    • 计算机芯片组被设计为在具有至少两个时钟速率的计算机母板上使用,包括第一时钟速率和第二时钟速率,用于将参考第一或第二时钟速率的输入信号转换为参考的输出信号 另一个时钟速率。 第一和第二时钟速率是虚拟同步的,并且它们之间具有固定的比例。 计算机芯片组利用能够产生一组相位信号的相位信号发生器和信号转换逻辑电路,用于产生参考第一和第二时钟速率之一的输出信号,而不是由输入信号所参考的那个。 该计算机芯片组可以允许计算机母板在不等待状态的情况下操作,从而可以提高计算机母板的数据处理效率。 在本发明的计算机芯片组中使用的多路复用器装置具有在第一时钟速率和第二时钟速率之间选择性地混合以用作第三时钟信号的输出。 该计算机芯片组允许设计者使用较慢的时钟速率来驱动DRAM。
    • 9. 发明申请
    • NOISE-RESISTANT PULSE WIDTH MODULATOR
    • 抗噪声脉宽调制器
    • US20050258813A1
    • 2005-11-24
    • US10850164
    • 2004-05-21
    • Liang-Pin TaiKent HwangJian-Rong HuangKuo-Ping LiuCheng-Hsuan FanKo-Cheng WangYu-Fan Liao
    • Liang-Pin TaiKent HwangJian-Rong HuangKuo-Ping LiuCheng-Hsuan FanKo-Cheng WangYu-Fan Liao
    • G05F1/40G05F1/44H02M1/08
    • H02M1/08
    • A pulse width modulator includes an amplifier module, a comparator module, and a filter module. The amplifier module receives a feedback voltage signal from a passive network, and generates first and second non-inverted voltage signals and first and second inverted voltage signals in response to the feedback voltage signal. The comparator module receives the first and second non-inverted voltage signals and the first and second inverted voltage signals, and provides first and second differential voltage signals corresponding to the first and second non-inverted voltage signals and the first and second inverted voltage signals. The filter module is coupled between the amplifier module and the comparator module, and is operable so as to attenuate high frequency components of the first and second non-inverted voltage signals. As such, the presence of noise in the feedback voltage signal does not affect differential operation of the comparator module.
    • 脉冲宽度调制器包括放大器模块,比较器模块和滤波器模块。 放大器模块从无源网络接收反馈电压信号,并响应于反馈电压信号产生第一和第二非反相电压信号以及第一和第二反相电压信号。 比较器模块接收第一和第二非反相电压信号以及第一和第二反相电压信号,并提供对应于第一和第二非反相电压信号以及第一和第二反相电压信号的第一和第二差分电压信号。 滤波器模块耦合在放大器模块和比较器模块之间,并且可操作以便衰减第一和第二非反相电压信号的高频分量。 因此,反馈电压信号中的噪声的存在不会影响比较器模块的差分工作。