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公开(公告)号:US07609102B2
公开(公告)日:2009-10-27
申请号:US11420196
申请日:2006-05-24
申请人: Naresh Shanbhag , Hyeon Min Bae , Jinki Park , Paul Suppiah
发明人: Naresh Shanbhag , Hyeon Min Bae , Jinki Park , Paul Suppiah
IPC分类号: H03H11/16
CPC分类号: H03D13/003 , H03L7/091 , H04L7/033
摘要: A phase detector apparatus and method used for clock recovery from a data signal is provided. The phase detector provides phase correction signals to a clock signal generator, where the phase correction signals are only generated if a predetermined data sample pattern is observed. In particular, the predetermined data sample pattern is preferably a transition from one to zero. Thus, transitions from zero to one will not provide a valid phase update output signal, even though a transition has occurred. In other embodiments the predetermined data sample pattern is preferably a one to zero transition preceded by an additional logic one sample.
摘要翻译: 提供了一种用于从数据信号进行时钟恢复的相位检测器装置和方法。 相位检测器向时钟信号发生器提供相位校正信号,其中仅在观察到预定的数据样本图样时才产生相位校正信号。 特别地,预定的数据样本图案优选地是从1到0的转变。 因此,即使发生了转换,从零转换到一个也不会提供有效的相位更新输出信号。 在其他实施例中,预定数据样本模式优选地是在附加逻辑1个样本之前的一到零转换。
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公开(公告)号:US20090237138A1
公开(公告)日:2009-09-24
申请号:US11420196
申请日:2006-05-24
申请人: Naresh Shanbhag , Hyeon Min Bae , Jinki Park , Paul Suppiah
发明人: Naresh Shanbhag , Hyeon Min Bae , Jinki Park , Paul Suppiah
IPC分类号: H03H11/16
CPC分类号: H03D13/003 , H03L7/091 , H04L7/033
摘要: A phase detector apparatus and method used for clock recovery from a data signal is provided. The phase detector provides phase correction signals to a clock signal generator, where the phase correction signals are only generated if a predetermined data sample pattern is observed. In particular, the predetermined data sample pattern is preferably a transition from one to zero. Thus, transitions from zero to one will not provide a valid phase update output signal, even though a transition has occurred. In other embodiments the predetermined data sample pattern is preferably a one to zero transition preceded by an additional logic one sample.
摘要翻译: 提供了一种用于从数据信号进行时钟恢复的相位检测器装置和方法。 相位检测器向时钟信号发生器提供相位校正信号,其中仅在观察到预定的数据样本图样时才产生相位校正信号。 特别地,预定的数据样本图案优选地是从1到0的转变。 因此,即使发生了转换,从零转换到一个也不会提供有效的相位更新输出信号。 在其他实施例中,预定数据样本模式优选地是在附加逻辑1个样本之前的一到零转换。
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公开(公告)号:US07298226B2
公开(公告)日:2007-11-20
申请号:US11420195
申请日:2006-05-24
申请人: Naresh Shanbhag , Hyeon Min Bae , Jinki Park , Paul Suppiah
发明人: Naresh Shanbhag , Hyeon Min Bae , Jinki Park , Paul Suppiah
IPC分类号: H03B1/00
CPC分类号: H03D13/003 , H03L7/091 , H04L7/033
摘要: A noise tolerant voltage controlled oscillator is described. The voltage controlled oscillator include a varactor element as part of an LC tank circuit. The varactor element is biased by a bias signal and a bias-dependent control signal. The bias-dependent control signal tunes the LC tank circuit. Because the control signal is bias-dependent, noise and other deleterious influences do not cause the varactor element to deviate in capacitance. Instead, the bias-dependent control signal is a tuning signal that is centered around the bias signal, which allows the varactor element to provide a constant capacitance in the event of a varying bias signal.
摘要翻译: 描述了一种耐噪声压控振荡器。 压控振荡器包括作为LC谐振电路的一部分的变容二极管元件。 变容二极管元件被偏置信号和偏置依赖控制信号偏置。 偏置相关的控制信号调节LC电路。 因为控制信号是偏置相关的,所以噪声和其他有害影响不会导致变容二极管元件偏离电容。 相反,偏置依赖控制信号是以偏置信号为中心的调谐信号,其允许变容二极管元件在变化的偏置信号的情况下提供恒定的电容。
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公开(公告)号:US20070018742A1
公开(公告)日:2007-01-25
申请号:US11420195
申请日:2006-05-24
申请人: Naresh Shanbhag , Hyeon Bae , Jinki Park , Paul Suppiah
发明人: Naresh Shanbhag , Hyeon Bae , Jinki Park , Paul Suppiah
IPC分类号: H03B5/12
CPC分类号: H03D13/003 , H03L7/091 , H04L7/033
摘要: A noise tolerant voltage controlled oscillator is described. The voltage controlled oscillator include a varactor element as part of an LC tank circuit. The varactor element is biased by a bias signal and a bias-dependent control signal. The bias-dependent control signal tunes the LC tank circuit. Because the control signal is bias-dependent, noise and other deleterious influences do not cause the varactor element to deviate in capacitance. Instead, the bias-dependent control signal is a tuning signal that is centered around the bias signal, which allows the varactor element to provide a constant capacitance in the event of a varying bias signal.
摘要翻译: 描述了一种耐噪声压控振荡器。 压控振荡器包括作为LC谐振电路的一部分的变容二极管元件。 变容二极管元件被偏置信号和偏置依赖控制信号偏置。 偏置相关的控制信号调节LC电路。 因为控制信号是偏置相关的,所以噪声和其他有害影响不会导致变容二极管元件偏离电容。 相反,偏置依赖控制信号是以偏置信号为中心的调谐信号,其允许变容二极管元件在变化的偏置信号的情况下提供恒定的电容。
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