Comparator with transition threshold tracking capability
    1.
    发明授权
    Comparator with transition threshold tracking capability 有权
    具有过渡阈值跟踪功能的比较器

    公开(公告)号:US08581632B2

    公开(公告)日:2013-11-12

    申请号:US13612799

    申请日:2012-09-12

    申请人: Keng-Jan Hsiao

    发明人: Keng-Jan Hsiao

    IPC分类号: G11C7/00

    摘要: A comparator is provided. The comparator includes a voltage generator, a buffer unit and a threshold control loop. The voltage generator has an output terminal for providing a reference voltage according to a constant current. The buffer unit provides an output signal according to a first input signal and a bias signal. The threshold control loop provides the bias signal to the buffer unit according to a second input signal, so as to regulate a transition threshold of the buffer unit to close to the second input signal. The output signal represents a compare result of the first and second input signals. The buffer unit and the threshold control loop are powered by the reference voltage.

    摘要翻译: 提供一个比较器。 比较器包括电压发生器,缓冲器单元和阈值控制回路。 电压发生器具有用于根据恒定电流提供参考电压的输出端子。 缓冲单元根据第一输入信号和偏置信号提供输出信号。 阈值控制环路根据第二输入信号向缓冲器单元提供偏置信号,以便调节缓冲单元的转换阈值以接近第二输入信号。 输出信号表示第一和第二输入信号的比较结果。 缓冲单元和阈值控制环路由参考电压供电。

    Injection-locked phase-locked loop with a self-aligned injection window
    2.
    发明授权
    Injection-locked phase-locked loop with a self-aligned injection window 有权
    具有自对准注入窗口的注入锁定锁相环

    公开(公告)号:US08432198B2

    公开(公告)日:2013-04-30

    申请号:US13225274

    申请日:2011-09-02

    IPC分类号: H03L7/06

    CPC分类号: H03L7/23

    摘要: An injection-locked phase-locked loop (ILPLL) with a self-aligned injection window is disclosed. In the ILPLL, a phase detector is provided to detect a phase difference between a pair of differential terminals of an injection-locked voltage-controlled oscillator (ILVCO) of the ILPLL. According to the detection, the phase detector generates a control signal, to align an oscillation output, generated from the pair of differential terminals of the ILVCO, with an injection pulse utilized in the ILVCO.

    摘要翻译: 公开了具有自对准注入窗口的注入锁定锁相环(ILPLL)。 在ILPLL中,提供相位检测器来检测ILPLL的注入锁定电压控制振荡器(ILVCO)的一对差分端子之间的相位差。 根据该检测,相位检测器产生控制信号,以使从ILVCO的一对差分端产生的振荡输出与ILVCO中使用的注入脉冲对准。

    RELAXATION OSCILLATOR
    3.
    发明申请
    RELAXATION OSCILLATOR 有权
    放松振荡器

    公开(公告)号:US20130200956A1

    公开(公告)日:2013-08-08

    申请号:US13612795

    申请日:2012-09-12

    申请人: Keng-Jan HSIAO

    发明人: Keng-Jan HSIAO

    IPC分类号: H03K3/36

    摘要: A relaxation oscillator is provided. A first current source provides a first current. A second current source provides a second current. A resistive element is coupled between the first current source and a ground. A capacitive element is coupled between the second current source and the ground. A comparator has a non-inverting input terminal, an inverting input terminal and an output terminal for outputting a compare result. A clock generator provides a clock signal according to the compare result. A switching unit alternately couples the non-inverting input terminal and the inverting input terminal of the comparator to the resistive element and the capacitive element according to the clock signal.

    摘要翻译: 提供张弛振荡器。 第一电流源提供第一电流。 第二电流源提供第二电流。 电阻元件耦合在第一电流源和地之间。 电容元件耦合在第二电流源和地之间。 比较器具有非反相输入端子,反相输入端子和用于输出比较结果的输出端子。 时钟发生器根据比较结果提供时钟信号。 开关单元根据时钟信号将比较器的非反相输入端子和反相输入端子交替耦合到电阻元件和电容元件。

    Relaxation oscillator
    4.
    发明授权
    Relaxation oscillator 有权
    放松振荡器

    公开(公告)号:US08912855B2

    公开(公告)日:2014-12-16

    申请号:US13612795

    申请日:2012-09-12

    申请人: Keng-Jan Hsiao

    发明人: Keng-Jan Hsiao

    摘要: A relaxation oscillator is provided. A first current source provides a first current. A second current source provides a second current. A resistive element is coupled between the first current source and a ground. A capacitive element is coupled between the second current source and the ground. A comparator has a non-inverting input terminal, an inverting input terminal and an output terminal for outputting a compare result. A clock generator provides a clock signal according to the compare result. A switching unit alternately couples the non-inverting input terminal and the inverting input terminal of the comparator to the resistive element and the capacitive element according to the clock signal.

    摘要翻译: 提供张弛振荡器。 第一电流源提供第一电流。 第二电流源提供第二电流。 电阻元件耦合在第一电流源和地之间。 电容元件耦合在第二电流源和地之间。 比较器具有非反相输入端子,反相输入端子和用于输出比较结果的输出端子。 时钟发生器根据比较结果提供时钟信号。 开关单元根据时钟信号将比较器的非反相输入端子和反相输入端子交替耦合到电阻元件和电容元件。

    Clock generator and method of generating clock signal
    5.
    发明授权
    Clock generator and method of generating clock signal 有权
    时钟发生器和产生时钟信号的方法

    公开(公告)号:US08664996B2

    公开(公告)日:2014-03-04

    申请号:US13495004

    申请日:2012-06-13

    IPC分类号: G06F1/04 H03K3/00

    摘要: A clock generator utilized for providing a clock signal includes: a first oscillator and a switching circuit. The switching circuit is coupled to the first oscillator and a second oscillator, and utilized for receiving a first oscillating signal generated from the first oscillator and a second oscillating signal generated from the second oscillator, and selecting one of the first oscillating signal and the second oscillating signal as the clock signal according to a status signal.

    摘要翻译: 用于提供时钟信号的时钟发生器包括:第一振荡器和开关电路。 开关电路耦合到第一振荡器和第二振荡器,用于接收从第一振荡器产生的第一振荡信号和从第二振荡器产生的第二振荡信号,并且选择第一振荡信号和第二振荡器之一 根据状态信号作为时钟信号。

    COMPARATOR WITH TRANSITION THRESHOLD TRACKING CAPABILITY
    6.
    发明申请
    COMPARATOR WITH TRANSITION THRESHOLD TRACKING CAPABILITY 有权
    具有过渡阈值跟踪能力的比较器

    公开(公告)号:US20130200924A1

    公开(公告)日:2013-08-08

    申请号:US13612799

    申请日:2012-09-12

    申请人: Keng-Jan HSIAO

    发明人: Keng-Jan HSIAO

    IPC分类号: G01R19/10

    摘要: A comparator is provided. The comparator includes a voltage generator, a buffer unit and a threshold control loop. The voltage generator has an output terminal for providing a reference voltage according to a constant current. The buffer unit provides an output signal according to a first input signal and a bias signal. The threshold control loop provides the bias signal to the buffer unit according to a second input signal, so as to regulate a transition threshold of the buffer unit to close to the second input signal. The output signal represents a compare result of the first and second input signals. The buffer unit and the threshold control loop are powered by the reference voltage.

    摘要翻译: 提供一个比较器。 比较器包括电压发生器,缓冲器单元和阈值控制回路。 电压发生器具有用于根据恒定电流提供参考电压的输出端子。 缓冲单元根据第一输入信号和偏置信号提供输出信号。 阈值控制环路根据第二输入信号向缓冲器单元提供偏置信号,以便调节缓冲单元的转换阈值以接近第二输入信号。 输出信号表示第一和第二输入信号的比较结果。 缓冲单元和阈值控制环路由参考电压供电。

    CLOCK GENERATOR AND METHOD OF GENERATING CLOCK SIGNAL
    7.
    发明申请
    CLOCK GENERATOR AND METHOD OF GENERATING CLOCK SIGNAL 有权
    时钟发生器及其产生时钟信号的方法

    公开(公告)号:US20130169338A1

    公开(公告)日:2013-07-04

    申请号:US13495004

    申请日:2012-06-13

    IPC分类号: G06F1/04

    摘要: A clock generator utilized for providing a clock signal includes: a first oscillator and a switching circuit. The switching circuit is coupled to the first oscillator and a second oscillator, and utilized for receiving a first oscillating signal generated from the first oscillator and a second oscillating signal generated from the second oscillator, and selecting one of the first oscillating signal and the second oscillating signal as the clock signal according to a status signal.

    摘要翻译: 用于提供时钟信号的时钟发生器包括:第一振荡器和开关电路。 开关电路耦合到第一振荡器和第二振荡器,用于接收从第一振荡器产生的第一振荡信号和从第二振荡器产生的第二振荡信号,并且选择第一振荡信号和第二振荡器之一 根据状态信号作为时钟信号。