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    • 71. 发明申请
    • Amplification Circuit Having Optimization of Power
    • 放大电路优化电源
    • US20140197893A1
    • 2014-07-17
    • US13996758
    • 2012-01-26
    • Vincent Knopik
    • Vincent Knopik
    • H03F1/02H03F3/21H03F3/193
    • H03F1/02H03F1/0277H03F3/193H03F3/21H03F3/211H03F3/72H03F2200/453
    • A Power amplifier circuit comprising an input, an output comprising: means for sensing the input voltage; and a set of n cascode circuits, each comprising a first transistor having a gate, a source and a drain terminal and further comprising a second transistor having gate, source and drain terminal; the source and gate of the first transistor of said cascode circuits being respectively connected to a first reference voltage and to receive the input signal, the drain of said first transistor being connected to the source of said second transistor, the drain of which being coupled to said output. By activating or deactivating one or more of the n cascode circuits, the total size of the amplification components can be adapted to the value of the output power to generate.
    • 一种功率放大器电路,包括输入,输出,包括:用于感测所述输入电压的装置; 以及一组n个共源共栅电路,每个包括具有栅极,源极和漏极端子的第一晶体管,并且还包括具有栅极,源极和漏极端子的第二晶体管; 所述共源共栅电路的第一晶体管的源极和栅极分别连接到第一参考电压并接收输入信号,所述第一晶体管的漏极连接到所述第二晶体管的源极,其漏极耦合到 说输出。 通过激活或去激活n个级联电路中的一个或多个,放大组件的总体尺寸可以适应于产生的输出功率的值。
    • 72. 发明授权
    • Locking of communication device
    • 锁定通讯装置
    • US08774864B2
    • 2014-07-08
    • US13141637
    • 2009-12-23
    • Praveenya Kumar
    • Praveenya Kumar
    • H04W88/02
    • H04W8/24H04W4/00H04W4/60H04W8/183H04W8/26H04W12/06H04W48/02
    • A communication system for implementing locking of a device (102) is described. The device (102) can be locked to a network service provider for a validity period. After expiry of the validity period, the device (102) can be automatically unlocked. In locked mode of operation, an integrated circuit (IC) card tool-kit (214) that is used for housing the IC card, is disabled in the device (102). During the validity period, the device (102) transmits an equipment identity number to the network service provider while initiating a request for communication. The network service provider dynamically allocates a subscriber identity number to facilitate communication process. After expiry of the validity period, the device (102) is unlocked automatically and the IC tool-kit (214) of the device (102) is enabled.
    • 描述用于实现设备(102)的锁定的通信系统。 设备(102)可以在有效期内被锁定到网络服务提供商。 在有效期到期后,设备(102)可以自动解锁。 在锁定操作模式下,用于容纳IC卡的集成电路(IC)卡工具包(214)在设备(102)中禁用。 在有效期期间,设备(102)在发起通信请求的同时向网络服务提供商发送设备标识号。 网络服务提供者动态地分配用户身份号码以促进通信过程。 在有效期结束之后,设备(102)被自动解锁,并且设备(102)的IC工具包(214)被启用。
    • 75. 发明授权
    • Correction of low accuracy clock
    • 校正低精度时钟
    • US08749313B2
    • 2014-06-10
    • US13484405
    • 2012-05-31
    • Andrew Ellis
    • Andrew Ellis
    • H03L7/06
    • G04G3/027G04G3/04
    • An electronic device has two oscillators, for example a first highly accurate crystal oscillator and a second less accurate low power oscillator. In a normal mode of operation, time is counted based on an output from the crystal oscillator, but in a low power mode of operation, time is counted based on an output from the less accurate oscillator. During the low power mode of operation, a calibration process is performed repeatedly. During a first calibration time period the second oscillator is calibrated against the first oscillator to obtain a first calibration result, and a recalibration is performed during a second calibration time period to obtain a second calibration result. A correction factor is determined from the first and second calibration results, and the correction factor is applied when subsequently counting time based on the output from the second oscillator.
    • 电子设备具有两个振荡器,例如第一高精度晶体振荡器和第二较不精确的低功率振荡器。 在正常工作模式下,时间根据晶体振荡器的输出进行计数,但在低功耗工作模式下,时间是根据较不精确的振荡器的输出进行计数的。 在低功率运行模式下,重复执行校准过程。 在第一校准时间段期间,第二振荡器针对第一振荡器进行校准以获得第一校准结果,并且在第二校准时间段期间执行重新校准以获得第二校准结果。 根据第一和第二校准结果确定校正因子,并且当基于来自第二振荡器的输出的后续计数时间时应用校正因子。
    • 76. 发明授权
    • Frequency conversion device for wireless systems
    • 无线系统变频装置
    • US08731507B2
    • 2014-05-20
    • US13786637
    • 2013-03-06
    • ST-Ericsson SA
    • Frederic DuezLuc GarciaBenoit ButayeJerome LajoinieThierry LapergueMathilde Sie
    • H04B1/26
    • H03D7/1466H03D7/165
    • A frequency conversion device for transforming a frequency of an input signal, the device comprising: a signal generator for providing a plurality N of first signals at a first frequency, where N≧1, from an input signal having an in-phase component I and a quadrature signal component Q; an oscillator for generating N parallel oscillation signals, wherein the N oscillation signals are stepped in phase with respect to one another; a mixer comprising N mixing components, each mixing component being coupled to receive a respective one of the plurality of first signals and coupled to receive a respective oscillation signal for mixing the respective first signal with the corresponding oscillation signal to provide an output signal; and a common amplifier for receiving the N output signals from the N mixing components in N sequential phases for transmission.
    • 一种用于变换输入信号的频率的变频装置,该装置包括:信号发生器,用于从具有同相分量I的输入信号和N≥1的第一频率提供多个N个第一信号, 正交信号分量Q; 用于产生N个并联振荡信号的振荡器,其中所述N个振荡信号相对于彼此同步地阶梯状; 混合器,其包括N个混合分量,每个混合分量被耦合以接收所述多个第一信号中的相应一个,并且被耦合以接收相应的振荡信号,用于将相应的第一信号与相应的振荡信号混合以提供输出信号; 以及用于从N个混合分量中以N个连续相位接收N个输出信号以用于传输的公共放大器。
    • 79. 发明授权
    • Switching mode power supply comprising asynchronous limiter circuit
    • 开关电源包括异步限制电路
    • US08704502B2
    • 2014-04-22
    • US13512430
    • 2010-11-22
    • Laurent Chevalier
    • Laurent Chevalier
    • G05F1/40
    • H02M3/158H02M1/34H02M3/073H02M2001/344H03K17/08122
    • The invention relates to a switching mode power supply device comprising at least one MOS power transistor made on an integrated circuit and operating in switching mode, the drain and the source of said at least one MOS power transistor being connected, via connecting members having a non-null inductance, to one or several external circuits to said integrated circuit. According to the invention, the device further comprises a limiter circuit able to limit the current variations in at least one of said connecting members during the switching of said MOS power transistor. This limiter circuit enables to maintain the drain-source voltage of the MOS power transistor below a predetermined threshold value when it commutes.
    • 本发明涉及一种开关模式电源装置,包括至少一个在集成电路上制造的MOS功率晶体管,并以开关模式工作,所述至少一个MOS功率晶体管的漏极和源极通过具有非线性 一个或多个外部电路到所述集成电路。 根据本发明,该装置还包括限制电路,其能够限制在所述MOS功率晶体管切换期间至少一个所述连接构件中的电流变化。 该限幅电路能够使MOS功率晶体管的漏 - 源电压在通勤时保持在规定的阈值以下。