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    • 5. 发明申请
    • MINIMIZING POWER CONSUMPTION IN HIGH FREQUENCY DIGITAL CIRCUITS
    • 在高频数字电路中最大限度地降低功耗
    • WO2006018818A1
    • 2006-02-23
    • PCT/IB2005/052715
    • 2005-08-17
    • KONINKLIJKE PHILIPS ELECTRONICS, N.V.U.S. PHILIPS CORPORATIONVISSER, HenkVAUCHER, Cicero
    • VISSER, HenkVAUCHER, Cicero
    • H03K3/0233
    • H03L7/06H03K3/012H03K3/2885H03K3/289
    • A circuit comprises a frequency divider connected to receive respective Igate and hatch DC-biasing currents. Such frequency divider will self-resonate at some frequency that depends, in part, on these DC-biasing currents. Corresponding current sources provide programmable magnitudes for each of these DC-biasing currents, and can therefore affect the self-resonant frequency and overall power consumption. During calibration, the frequency divider is allowed to self-oscillate, and the DC-biasing currents are manipulated to cause the self-resonant frequency to approximate some target frequency. The DC-biasing currents can be opportunistically lowered and still maintain reliable operation when the self­resonant frequency of the frequency divider is tuned to the target operational frequency. Such calibration is repeated as needed during the service life of the device.
    • 电路包括分频器,其连接以接收相应的Igate和阴影直流偏置电流。 这种分频器在某些频率下将自谐振,该频率部分取决于这些直流偏置电流。 相应的电流源为这些直流偏置电流中的每一个提供可编程的幅度,因此可以影响自谐振频率和总功耗。 在校准期间,分频器被允许自振荡,并且操纵DC偏置电流以使自谐振频率接近某些目标频率。 当分频器的自谐振频率调谐到目标工作频率时,直流偏置电流可以机会地降低,并保持可靠的运行。 在设备的使用寿命期间根据需要重复这种校准。
    • 6. 发明申请
    • DEVICE COMPRISING A FREQUENCY DIVIDER
    • 包含频率分路器的装置
    • WO2005093954A1
    • 2005-10-06
    • PCT/IB2005/050925
    • 2005-03-16
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.VAUCHER, Cicero, S.APOSTOLIDOU, Melania
    • VAUCHER, Cicero, S.APOSTOLIDOU, Melania
    • H03L7/00
    • H03L7/00
    • Frequency dividers (2) comprising a first transistor circuit (21) with four transistor pairs (31-34, 81-84), two gate pairs (31, 33, 81, 83) and two latch pairs (32, 34, 82, 84) and comprising a second transistor circuit (22) with two transistor pairs (35-36, 85-86) and comprising an impedance circuit (23) have a relatively low frequency reach. By replacing the prior art load resistors in the impedance circuit (23) by active load impedances comprising transistors (37-40, 87-90), the frequency reach of the frequency divider (2) is improved significantly. An impedance (41-44) coupled to the emitter of a transistor (37-40, 87-90) defines the operation frequency range of the frequency divider (2), and an impedance (45-48) coupled to the basis of a transistor (37-40, 87-90) allows the frequency divider (2) to be tuned for maximum operation frequency.
    • 分频器(2)包括具有四个晶体管对(31-34,81-84),两个栅极对(31,33,81,83)和两个锁存对(32,34,82,82)的第一晶体管电路(21) 84)并且包括具有两个晶体管对(35-36,85-86)的第二晶体管电路(22),并且包括阻抗电路(23)具有相对较低的频率范围。 通过用包括晶体管(37-40,87-90)的有源负载阻抗代替阻抗电路(23)中的现有技术的负载电阻器,分频器(2)的频率范围得到显着改善。 耦合到晶体管(37-40,87-90)的发射极的阻抗(41-44)限定了分频器(2)的工作频率范围,耦合到 晶体管(37-40,87-90)允许调谐器(2)调整最大工作频率。
    • 10. 发明申请
    • RECEIVER HAVING A CALIBRATING SYSTEM
    • 具有校准系统的接收器
    • WO2004093355A1
    • 2004-10-28
    • PCT/IB2004/050413
    • 2004-04-08
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.VAUCHER, Cicero, S.STIKVOORT, Eduard, F.
    • VAUCHER, Cicero, S.STIKVOORT, Eduard, F.
    • H04B17/00
    • H04B1/28H03J1/0008H03J2200/29H03L7/16
    • A calibrating system for a receiver receiving an input signal (Rf) having an input frequency (fRf) and working in a receiving mode (R) and in a calibrating mode (C) comprising an intermediate frequency circuit (IF) coupled to a first mixer and comprising a bulk acoustic wave filter (BAW) determining the intermediate frequency (BAWf). The calibrating system further comprises a level detecting circuit (LD) coupled to the intermediate frequency circuit (IF) via a first switch (S1) in the calibrating mode (C) for determining an amplitude of the intermediate frequency signal. The receiver includes a tuning control processor (TC) coupled to the first synthesizer (LO1) and to the second synthesizer (L02) controlling the frequencies generated by said synthesizers (LO1, L02). A level detecting circuit (LD) is coupled to the intermediate frequency circuit (IF) for determining an amplitude of the intermediate frequency signal and providing a signal indicative for said amplitude to the tuning control processor (TC). The system further comprises a register (Reg) coupled to the tuning control processor (TC) for memorizing a number corresponding to the intermediate frequency (BAWf), the number being used as a correction factor for the first and second synthesizers (LO I, L02) in the receiving mode (R).
    • 一种用于接收接收具有输入频率(fRf)并且以接收模式(R)工作的校准模式(C))的输入信号(Rf)的接收机的校准系统,包括耦合到第一混频器的中频电路(IF) 并且包括确定中间频率(BAWf)的体声波滤波器(BAW)。 校准系统还包括经由校准模式(C)中的第一开关(S1)耦合到中频电路(IF)的电平检测电路(LD),用于确定中频信号的幅度。 接收机包括耦合到第一合成器(LO1)的调谐控制处理器(TC)和控制由所述合成器(LO1,L02)产生的频率的第二合成器(L02)。 电平检测电路(LD)耦合到中频电路(IF),用于确定中频信号的幅度,并向调谐控制处理器(TC)提供指示所述振幅的信号。 该系统还包括耦合到调谐控制处理器(TC)的寄存器(Reg),用于存储对应于中间频率(BAWf)的数字,该数字被用作第一和第二合成器(LO I,L02 )在接收模式(R)中。