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    • 12. 发明授权
    • High speed differential signaling logic gate and applications thereof
    • 高速差分信号逻辑门及其应用
    • US06756821B2
    • 2004-06-29
    • US10201108
    • 2002-07-23
    • Tsung-Hsien Lin
    • Tsung-Hsien Lin
    • H03K1920
    • H03K19/09432
    • A high-speed differential signaling logic gate includes a 1st input transistor, 2nd input transistor, complimentary transistor, complimentary transistor, current cource, a 1st load, and a 2nd load. The 1st input transistor is operably coupled to receive a 1st input logic signal, which may be one phase of a first differential input signal. The 2nd input transistor is coupled in parallel with the 1st input transistor and is further coupled to receive a 2nd input logic signal, which may be one phase of a 2nd differential input signal. The complimentary transistor is operably coupled to the sources of the 1st and 2nd input transistors and to receive a complimentary input signal, which mimics the other phase of the 1st differential logic signal and the 2nd differential logic signal. The current source sinks a fixed current from the 1st and 2nd input transistors and the complimentary transistor. The 1st load is operably coupled to the drains of the 1st and 2nd input transistors to provide a 1st phase of a differential logic output. The 2nd load is coupled to the drain of the complimentary transistor to provide a 2nd phase of the differential logic output.
    • 高速差分信号逻辑门包括第1输入晶体管,第2输入晶体管,互补晶体管,互补晶体管,电流源,1负载和2负载。 第一输入晶体管可操作地耦合以接收第一输入逻辑信号,其可以是第一差分输入信号的一相。 第二输入晶体管与第一输入晶体管并联耦合,并且还被耦合以接收第二输入逻辑信号,其可以是第二差分输入信号的一相。 互补晶体管可操作地耦合到第一和第二输入晶体管的源极,并且接收互补输入信号,其模拟第一差分逻辑信号的第二相, 差分逻辑信号。 电流源从第一和第二输入晶体管和互补晶体管吸收固定电流。 第一负载可操作地耦合到第一和第二输入晶体管的漏极以提供差分逻辑输出的1相。 第二负载耦合到互补晶体管的漏极,以提供差分逻辑输出的第二相。
    • 14. 发明授权
    • Voltage-to-time converter, and voltage-to-digital converting device having the same
    • 电压 - 时间转换器和具有该转换器的电压 - 数字转换装置
    • US07916064B2
    • 2011-03-29
    • US12469749
    • 2009-05-21
    • Tsung-Hsien LinChung-Hsing YangWei-Hao Chiu
    • Tsung-Hsien LinChung-Hsing YangWei-Hao Chiu
    • H03M1/50
    • H03M1/50
    • A voltage-to-digital converting device includes a first voltage-to-time converter outputting a first delay clock having a first time delay relative to a reference clock in response to an input voltage, and a second voltage-to-time converter outputting a second delay clock having a second time delay relative to the reference clock in response to a feedback voltage. The first and second time delays correspond respectively to the input and feedback voltages. A time-to-digital converting circuit receives the first and second delay clocks from the first and second voltage-to-time converters, compares phases of the first and second delay clocks, generates the feedback voltage based on result of phase comparison made thereby, and outputs a digital signal upon detecting that the phases of the first and second delay clocks are in-phase.
    • 电压 - 数字转换装置包括第一电压 - 时间转换器,其响应于输入电压输出相对于参考时钟具有第一时间延迟的第一延迟时钟;以及第二电压 - 时间转换器,其输出 第二延迟时钟响应于反馈电压具有相对于参考时钟的第二时间延迟。 第一和第二时间延迟分别对应于输入和反馈电压。 时间数字转换电路从第一和第二电压 - 时间转换器接收第一和第二延迟时钟,比较第一和第二延迟时钟的相位,基于由此产生的相位比较结果产生反馈电压, 并且在检测到第一和第二延迟时钟的相位是同相的时,输出数字信号。
    • 20. 发明授权
    • Calibration of a phase locked loop
    • 锁相环的校准
    • US07174144B2
    • 2007-02-06
    • US10243854
    • 2002-09-13
    • Tsung-Hsien Lin
    • Tsung-Hsien Lin
    • H04B1/06
    • H03L7/0891
    • Calibration of a phase locked loop and applications thereof within a radio frequency integrated circuit begins by determining an intersection of an up current and down current produced by a charge pump within the phase locked loop. The RFIC then determines a reference voltage corresponding to the intersection, which varies from an ideal voltage of VDD/2 based on process variations. The RFIC then offsets a control voltage to the voltage control oscillator (VCO) of the phase locked loop based on the reference voltage. Accordingly, by determining the offset of the actual intersection from the ideal intersection, the control voltage to the VCO may be adjusted thereby calibrating the phase locked loop for more linear performance.
    • 锁相环的校准及其在射频集成电路中的应用通过确定锁相环内的电荷泵产生的上升电流和下降电流的交点开始。 然后,RFIC确定对应于交点的参考电压,其基于过程变化从VLS2 / 2的理想电压变化。 然后,RFIC基于参考电压将控制电压偏移到锁相环的压控振荡器(VCO)。 因此,通过确定实际交叉点与理想交点的偏移,可以调节到VCO的控制电压,从而校准锁相环以获得更多的线性性能。