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
    • 1. 发明授权
    • DLL with adjustable phase shift using processed control signal
    • 具有可调相移的DLL使用处理后的控制信号
    • US07212054B1
    • 2007-05-01
    • US11479660
    • 2006-06-29
    • Tzung-chin ChangChiakang SungYan ChongHenry KimJoseph Huang
    • Tzung-chin ChangChiakang SungYan ChongHenry KimJoseph Huang
    • H03L7/06
    • H03L7/0814H03L7/0805
    • Circuits and methods are described for producing a DLL clock signal with adjustable phase shift using a processed control signal. In one embodiment of the invention, a DLL circuit is provided that includes a main and smaller variable delay circuits, a phase detector and an up down counter that provides a main control signal to adjust the delay by the main variable delay circuit. When the DLL circuit is locked, an arithmetic logic unit (ALU) produces a processed control signal based on the main control signal, an ALU control signal and an offset control signal, and the processed control signal is provided to the smaller variable delay circuit. By adjusting the ALU control and offset control signals, the phase shift introduced on the DLL control signal by the smaller variable delay circuit can be adjusted. In another embodiment of the invention, a second up down counter is used in place of an ALU for providing a dynamically adjustable phase shift in accordance with the principles of the present invention.
    • 描述了用于使用处理的控制信号产生具有可调相移的DLL时钟信号的电路和方法。 在本发明的一个实施例中,提供一种DLL电路,其包括主要和较小的可变延迟电路,相位检测器和向上计数器,其提供主控制信号以通过主可变延迟电路来调整延迟。 当DLL电路被锁定时,算术逻辑单元(ALU)基于主控制信号,ALU控制信号和偏移控制信号产生处理的控制信号,并且处理的控制信号被提供给较小的可变延迟电路。 通过调整ALU控制和偏移控制信号,可以调整由较小的可变延迟电路引入到DLL控制信号上的相移。 在本发明的另一实施例中,根据本发明的原理,使用第二向上计数器来代替ALU来提供动态可调的相移。
    • 2. 发明授权
    • DLL with adjustable phase shift using processed control signal
    • 具有可调相移的DLL使用处理后的控制信号
    • US07091760B1
    • 2006-08-15
    • US10788221
    • 2004-02-25
    • Tzung-chin ChangChiakang SungYan ChongHenry KimJoseph Huang
    • Tzung-chin ChangChiakang SungYan ChongHenry KimJoseph Huang
    • H03L7/06
    • H03L7/0814H03L7/0805
    • Circuits and methods are described for producing a DLL clock signal with adjustable phase shift using a processed control signal. In one embodiment of the invention, a DLL circuit is provided that includes a main and smaller variable delay circuits, a phase detector and an up down counter that provides a main control signal to adjust the delay by the main variable delay circuit. When the DLL circuit is locked, an arithmetic logic unit (ALU) produces a processed control signal based on the main control signal, an ALU control signal and an offset control signal, and the processed control signal is provided to the smaller variable delay circuit. By adjusting the ALU control and offset control signals, the phase shift introduced on the DLL control signal by the smaller variable delay circuit can be adjusted. In another embodiment of the invention, a second up down counter is used in place of an ALU for providing a dynamically adjustable phase shift in accordance with the principles of the present invention.
    • 描述了用于使用处理的控制信号产生具有可调相移的DLL时钟信号的电路和方法。 在本发明的一个实施例中,提供一种DLL电路,其包括主要和较小的可变延迟电路,相位检测器和向上计数器,其提供主控制信号以通过主可变延迟电路来调整延迟。 当DLL电路被锁定时,算术逻辑单元(ALU)基于主控制信号,ALU控制信号和偏移控制信号产生处理的控制信号,并且处理的控制信号被提供给较小的可变延迟电路。 通过调整ALU控制和偏移控制信号,可以调整由较小的可变延迟电路引入到DLL控制信号上的相移。 在本发明的另一实施例中,根据本发明的原理,使用第二向上计数器来代替ALU来提供动态可调的相移。
    • 7. 发明授权
    • Circuit for providing clock signals with low skew
    • 提供低偏移时钟信号的电路
    • US06731142B1
    • 2004-05-04
    • US10412705
    • 2003-04-10
    • Bonnie WangChiakang SungKhai NguyenJoseph HuangXiaobao WangIn Whan KimGopi RanganYan ChongPhillip PanTzung-Chin Chang
    • Bonnie WangChiakang SungKhai NguyenJoseph HuangXiaobao WangIn Whan KimGopi RanganYan ChongPhillip PanTzung-Chin Chang
    • H03K2100
    • H03M9/00G06F1/08H03K5/135
    • A digital, preferably programmable, circuit is disclosed for providing one or more clock signals with variable frequency and/or phase. The clock signals exhibit a low amount of skew relative to other clock signals and data signals provided by the circuit. In one embodiment, the circuit includes a plurality of channels each having a parallel-in/serial-out shift register, a flip-flop, and a delay circuit. The shift register can receive data bits in data channels or clock frequency select bits in frequency-divided clock channels. The serial output from the register acts as an input for the flip flop, both of which are triggered by an input reference clock. The delay circuit delays the input reference clock. In each channel, a multiplexer is configured to select the clock or data channel output from the register, flip-flop, and delay circuit outputs. Since the delays in all output paths are matched, skew is minimized.
    • 公开了一种数字,优选可编程的电路,用于提供具有可变频率和/或相位的一个或多个时钟信号。 时钟信号相对于由该电路提供的其它时钟信号和数据信号呈现低的偏移量。 在一个实施例中,电路包括多个通道,每个通道具有并行/串行输出移位寄存器,触发器和延迟电路。 移位寄存器可以在分频时钟通道中的数据通道或时钟频率选择位中接收数据位。 来自寄存器的串行输出用作触发器的输入,两者均由输入参考时钟触发。 延迟电路延迟输入参考时钟。 在每个通道中,多路复用器被配置为选择从寄存器,触发器和延迟电路输出输出的时钟或数据通道。 由于所有输出路径中的延迟相匹配,所以偏斜最小化。
    • 9. 发明授权
    • Circuit for providing clock signals with low skew
    • 提供低偏移时钟信号的电路
    • US06549045B1
    • 2003-04-15
    • US10043620
    • 2002-01-11
    • Bonnie WangChiakang SungKhai NguyenJoseph HuangXiaobao WangIn Whan KimGopi RanganYan ChongPhillip PanTzung-Chin Chang
    • Bonnie WangChiakang SungKhai NguyenJoseph HuangXiaobao WangIn Whan KimGopi RanganYan ChongPhillip PanTzung-Chin Chang
    • H03K2100
    • H03M9/00G06F1/08H03K5/135
    • A digital, preferably programmable, circuit is disclosed for providing one or more clock signals with variable frequency and/or phase. The clock signals exhibit a low amount of skew relative to other clock signals and data signals provided by the circuit. In one embodiment, the circuit includes a plurality of channels each having a parallel-in/serial-out shift register, a flip-flop, and a delay circuit. The shift register can receive data bits in data channels or clock frequency select bits in frequency-divided clock channels. The serial output from the register acts as an input for the flip flop, both of which are triggered by an input reference clock. The delay circuit delays the input reference clock. In each channel, a multiplexer is configured to select the clock or data channel output from the register, flip-flop, and delay circuit outputs. Since the delays in all output paths are matched, skew is minimized.
    • 公开了一种数字,优选可编程的电路,用于提供具有可变频率和/或相位的一个或多个时钟信号。 时钟信号相对于由该电路提供的其它时钟信号和数据信号呈现低的偏移量。 在一个实施例中,电路包括多个通道,每个通道具有并行/串行输出移位寄存器,触发器和延迟电路。 移位寄存器可以在分频时钟通道中的数据通道或时钟频率选择位中接收数据位。 来自寄存器的串行输出用作触发器的输入,两者均由输入参考时钟触发。 延迟电路延迟输入参考时钟。 在每个通道中,多路复用器被配置为选择从寄存器,触发器和延迟电路输出输出的时钟或数据通道。 由于所有输出路径中的延迟相匹配,所以偏斜最小化。