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    • 1. 发明申请
    • ADJUSTABLE PHASE CONTROLLED CLOCK AND DATA RECOVERY CIRCUIT
    • 可调相位控制时钟和数据恢复电路
    • US20070222488A1
    • 2007-09-27
    • US11757510
    • 2007-06-04
    • Anthony BonaccioCharles MasenasTroy Seman
    • Anthony BonaccioCharles MasenasTroy Seman
    • H03L7/00
    • H03L7/081H04L7/033
    • A clock and data recovery circuit including: means for generating a first and a second clock signal; means for receiving the first clock signal and for generating a third clock signal from the first clock signal and means for receiving the second clock signal and for generating a fourth clock signal, wherein at least one of the third and the fourth clock signals differ in phase from the first and the second clock signal respectively; means for receiving the third and fourth clock signals and a serial data stream and for generating a reconstructed serial data stream and a phase error signal; means for receiving the phase error signal and for generating a phase adjustment signal and means for receiving the phase adjustment signal by the by the clock generation circuit in a feedback loop to adjust the phases of the first and second clock signals.
    • 一种时钟和数据恢复电路,包括:用于产生第一和第二时钟信号的装置; 用于接收第一时钟信号并用于从第一时钟信号产生第三时钟信号的装置,以及用于接收第二时钟信号并产生第四时钟信号的装置,其中第三和第四时钟信号中的至少一个在相位上是不同的 分别从第一和第二时钟信号; 用于接收第三和第四时钟信号和串行数据流并用于产生重建的串行数据流和相位误差信号的装置; 用于接收相位误差信号并产生相位调整信号的装置,以及用于在反馈回路中由时钟产生电路接收相位调整信号的装置,以调整第一和第二时钟信号的相位。
    • 4. 发明申请
    • PSEUDO-RANDOM BINARY SEQUENCE CHECKER WITH AUTOMATIC SYNCHRONIZATION
    • 具有自动同步的PSEUDO随机二进制序列检查器
    • US20050071399A1
    • 2005-03-31
    • US10605381
    • 2003-09-26
    • Anthony BonaccioAllen Haar
    • Anthony BonaccioAllen Haar
    • G01R31/317G01R31/3183G06F1/02G06F7/58
    • G01R31/318385G01R31/31703G01R31/31728G06F7/584G06F2207/582
    • A pseudo-random binary sequence checker having automatic synchronization is disclosed. The pseudo-random binary sequence checker includes a receiver, a synchronizer, and a comparator. The receiver is capable of receiving a pseudo-random binary sequence, which is generated by a pseudo-random binary sequence generator, in a parallel fashion n bits at a time. The synchronizer automatically synchronizes the state of the receiver with an n-bit sample within the pseudo-random binary sequence and calculate all subsequent n-bit sample within the pseudo-random binary sequence. The comparator compares the subsequent calculated n-bit sample within the pseudo-random binary sequence to the next subsequent next received n-bit sample within the pseudo-random binary sequence to indicate an error condition has occurred if each calculated n-bit sample within the pseudo-random binary sequence does not equal to the corresponding received n-bit sample within the pseudo-random binary sequence.
    • 公开了具有自动同步的伪随机二进制序列检验器。 伪随机二进制序列检查器包括接收器,同步器和比较器。 接收机能够以并行方式一次接收由伪随机二进制序列生成器生成的伪随机二进制序列,每个n位。 同步器自动将接收器的状态与伪随机二进制序列内的n位采样同步,并计算伪随机二进制序列内的所有随后的n位采样。 比较器将伪随机二进制序列中随后计算的n位采样与伪随机二进制序列中的下一个接下来的接收到的n位采样进行比较,以指示如果每个计算的n位采样在 伪随机二进制序列不等于伪随机二进制序列内的相应接收的n位样本。
    • 7. 发明申请
    • BODY-BIASED ENHANCED PRECISION CURRENT MIRROR
    • 身体偏心增强精度电流镜
    • US20060192611A1
    • 2006-08-31
    • US10906628
    • 2005-02-28
    • Anthony BonaccioHayden Cranford
    • Anthony BonaccioHayden Cranford
    • G05F1/10
    • G05F3/262
    • A body-biased enhanced current mirror reference circuit is disclosed wherein the body bias voltage of a current mirror device is varied to adjust its threshold voltage. Both the drain and body potentials of a replica mirror transistor are controlled to selected values. The drain is set to an expected DC voltage output of an NFET current mirror device. The body potential is set to a maximum desired value to prevent forward biasing of the body-to-diffusion junction(s) of one or more current mirror devices, which is accomplished by a feedback control circuit. A low-frequency, low-precision op amp drives the gate of a replica load device so that the body of the replica NFET current mirror device is set to a maximum bias voltage. The maximum bias voltage is also used to bias the body of a diode connected NMOS reference transistor, so that the current in the NFET current mirror device will be approximately equal to the current in the diode-connected NMOS reference. An auxiliary NFET current mirror device may be added to the body-biased enhanced current mirror circuit with the body connected to ground as in the unmodified current mirror to negate a non-monotonicity of the current output.
    • 公开了一种体偏置增强电流镜参考电路,其中电流镜装置的体偏置电压被改变以调节其阈值电压。 复制镜晶体管的漏极和体电位都被控制为选定值。 漏极设置为NFET电流镜器件的预期直流电压输出。 身体电位被设置为最大期望值,以防止由反馈控制电路实现的一个或多个电流镜装置的体对扩散结的正向偏置。 低频,低精度运算放大器驱动复制负载装置的栅极,使得复制NFET电流镜装置的主体被设置为最大偏置电压。 最大偏置电压也用于偏置二极管连接的NMOS参考晶体管的主体,使得NFET电流镜器件中的电流将近似等于连接二极管的NMOS参考电流。 辅助NFET电流镜装置可以被添加到主体偏置的增强电流镜电路中,其中主体连接到地面,如在未修改的电流镜中,以消除电流输出的非单调性。