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    • 124. 发明申请
    • OSCILLATOR CIRCUIT AND METHOD OF GENERATING A CLOCK SIGNAL
    • 振荡器电路和产生时钟信号的方法
    • US20160132070A1
    • 2016-05-12
    • US14899170
    • 2013-07-04
    • Hubert BODEDirk WENDEL
    • HUBERT BODEDIRK WENDEL
    • G06F1/08H03K3/023
    • G06F1/08H03K3/023H03K3/0231
    • An oscillator circuit of the type comprising a flip-flop for generating a clock signal and two comparators for comparing a reference voltage with the voltage across a first capacitor which is charged during a first cycle of the clock signal and the voltage across a second capacitor which is charged during a second cycle of a clock signal provides a means for removing the effects of any offset in either comparator. This is achieved by reversing the inputs of the comparators for each cycle of the output frequency. Thus an offset in a comparator which would increase the clock period on one cycle will reduce the period of the next cycle by the same amount. As a net result, the period of time over two clock periods will stay constant regardless of any offset drift in a comparator.
    • 一种振荡器电路,包括用于产生时钟信号的触发器和用于将参考电压与在第一电容器的第一周期期间充电的第一电容器两端的电压进行比较的两个比较器,以及跨越第二电容器的电压 在时钟信号的第二周期期间被充电提供了用于消除任一比较器中任何偏移的影响的装置。 这是通过在输出频率的每个周期反转比较器的输入来实现的。 因此,将在一个周期上增加时钟周期的比较器中的偏移将使下一个周期的周期减少相同的量。 作为最终结果,无论比较器中有任何偏移漂移,两个时钟周期的时间段将保持不变。
    • 129. 发明授权
    • Inertial sensor and method of levitation effect compensation
    • 惯性传感器和悬浮效应补偿方法
    • US09335170B2
    • 2016-05-10
    • US13687299
    • 2012-11-28
    • FREESCALE SEMICONDUCTOR, INC.
    • Yizhen LinJan MehnerMichael Naumann
    • G01C19/00G01C19/574
    • G01C19/574
    • An inertial sensor (110) includes a drive system (118) configured to oscillate a drive mass (114) within a plane (24) that is substantially parallel to a surface (50) of a substrate (28). The drive system (118) includes first and second drive units (120, 122) having fixed fingers (134, 136) interleaved with movable fingers (130, 132) of the drive mass (114). At least one of the drive units (120) is located on each side (126, 128) of the drive mass (114). Likewise, at least one of the drive units (122) is located on each side (126, 128) of the drive mass (114). The drive units (122) are driven in phase opposition to the drive units (120) so that a levitation force (104) generated by the drive units (122) compensates for, or at least partially suppresses, a levitation force (100) generated by the drive units (120).
    • 惯性传感器(110)包括驱动系统(118),驱动系统(118)被配置为使基本平行于基底(28)的表面(50)的平面(24)内的驱动质量块(114)振荡。 驱动系统(118)包括具有与驱动质量块(114)的活动指状物(130,132)交错的固定指状物(134,136)的第一和第二驱动单元(120,122)。 驱动单元(120)中的至少一个位于驱动块(114)的每一侧(126,128)上。 类似地,驱动单元(122)中的至少一个位于驱动块(114)的每一侧(126,128)上。 驱动单元(122)与驱动单元(120)相反地驱动,使得由驱动单元(122)产生的悬浮力(104)补偿或至少部分地抑制产生的悬浮力(100) 通过驱动单元(120)。
    • 130. 发明申请
    • PHASE DETECTOR AND PHASE-LOCKED LOOP
    • 相位检测器和相位锁定环路
    • US20160126963A1
    • 2016-05-05
    • US14895267
    • 2013-06-06
    • Gennady Mihaylovich VYDOLOB
    • GENNADY MIHAYLOVICH VYDOLOB
    • H03L7/089H03D13/00
    • H03L7/0891H03D13/004H03L7/089H03L7/091H03L7/1077
    • A phase detector for generating a phase difference signal indicative of a phase difference between a first bi-level signal of frequency F1 and a second bi-level signal of frequency F2 is proposed. The phase detector may include first and second detector inputs first and second flip-flops, a NAND gate, and a first and second overphase detection units. An output of the first overphase detection unit may be connected to a direct input of the second flip-flop and may be arranged to output the level “1” in response to F1≦F2 and the level “0” in response to F1>F2. An output of the second overphase detection unit may be connected to a direct input of the first flip-flop and may be arranged to output the level “1” in response to F2≦F1 and the level “0” in response to F2>F1.
    • 提出了一种相位检测器,用于产生指示频率F1的第一双电平信号和频率为F2的第二双电平信号之间的相位差的相位差信号。 相位检测器可以包括第一和第二检测器输入第一和第二触发器,NAND门以及第一和第二超相位检测单元。 第一上相检测单元的输出可以连接到第二触发器的直接输入,并且可以被布置为响应于F1> N1而输出电平“1”;响应于F1> F2而输出电平“0” 。 第二过相检测单元的输出可以连接到第一触发器的直接输入,并且可以被布置为响应于F2> n1而输出电平“1”; F1和响应于F2> F1的电平“0” 。