Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios
    2.
    发明授权
    Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios 有权
    具有高峰值与平均功率比的无线通信系统中的功率放大器效率的提高方法和装置

    公开(公告)号:US07787566B2

    公开(公告)日:2010-08-31

    申请号:US12478812

    申请日:2009-06-05

    CPC classification number: H04W52/343

    Abstract: A power management system and method for a wireless communication device generates an average desired transmit power signal based on at least one of a received signal strength indicator signal and a power control instruction signal from a base station. A power supply level adjustment signal is generated based on the data parameters of an outgoing data stream and at least one environmental information signal. A combination of the power supply level adjustment signal and the average desired transmit power or a gain control signal and an altered version of the power supply level adjustment signal is used to generate a variable power supply signal that is provided to an output amplifier block for sufficiently generating outgoing wireless device radio signals while reducing power loss in the output amplifier block.

    Abstract translation: 用于无线通信设备的电源管理系统和方法基于来自基站的接收信号强度指示符信号和功率控制指令信号中的至少一个产生平均期望的发射功率信号。 基于输出数据流的数据参数和至少一个环境信息信号生成电源电平调整信号。 使用电源电平调整信号和平均期望发送功率或增益控制信号和电源电平调整信号的改变版本的组合来产生可变电源信号,该可变电源信号被提供给输出放大器块用于充分地 产生输出无线设备无线电信号,同时减少输出放大器块中的功率损耗。

    Method of controlling tension in a web

    公开(公告)号:US20060129266A1

    公开(公告)日:2006-06-15

    申请号:US11009191

    申请日:2004-12-10

    CPC classification number: B65H23/044 B65H23/063 B65H23/1825

    Abstract: A method of controlling tension in a material handling process. An error signal of the process is determined. The velocity analog value of the material is determined and an instantaneous integral gain is then determined according to the velocity analog value. A proportional gain is determined. A first material parameter threshold value is determined. A first material parameter analog value is measured. The output of a controller is then adjusted according to the error signal, the instantaneous integral gain, and the proportional gain. The adjustment of a process output according to the instantaneous integral gain is controlled according to the relative values of the first material parameter threshold value and the first material parameter analog value.

    Fuzzy control system, particularly for dose rate control in an X-ray
diagnostics apparatus
    6.
    发明授权
    Fuzzy control system, particularly for dose rate control in an X-ray diagnostics apparatus 失效
    模糊控制系统,特别是用于X射线诊断装置中的剂量率控制

    公开(公告)号:US5845269A

    公开(公告)日:1998-12-01

    申请号:US714160

    申请日:1996-09-23

    CPC classification number: H05G1/36 H05G1/26 Y10S706/903 Y10S706/924

    Abstract: A fuzzy control system, particularly for dose rate control in an X-ray diagnostics apparatus, such a control system converting input signals into output signals. A first and a second individual module are provided, whereby respectively at least two input signals can be supplied to the first and to the second individual module for generating an output signal. Compared to a fuzzy control system that does not comprise these individual modules, the rule base becomes smaller, only input conditions that have influence on the individual module need be provided with rules, so that a simple check of the rules for completeness is assured.

    Abstract translation: PCT No.PCT / DE95 / 00363 Sec。 371日期1996年9月23日 102(e)1996年9月23日PCT 1995年3月15日PCT PCT。 公开号WO95 / 25990 日期1995年9月28日一种模糊控制系统,特别是用于X射线诊断装置中的剂量率控制的控制系统,将输入信号转换为输出信号。 提供第一和第二单独模块,由此可以分别向第一和第二单独模块提供至少两个输入信号以产生输出信号。 与不包含这些单个模块的模糊控制系统相比,规则库变小,仅对单个模块有影响的输入条件需要提供规则,以便确保完整性规则的简单检查。

    Catheter and associated system for pacing the heart
    7.
    发明授权
    Catheter and associated system for pacing the heart 失效
    导管及相关系统用于起搏心脏

    公开(公告)号:US5423878A

    公开(公告)日:1995-06-13

    申请号:US101335

    申请日:1993-08-02

    Applicant: Michael Franz

    Inventor: Michael Franz

    Abstract: The apparatus comprises a probe having a tip portion, a first electrode mounted on a terminal free end of the tip portion and a second electrode spaced along the tip portion from the first electrode for supplying a reference potential. The probe is constructed so as to hold the first electrode in contact with tissue of an in vivo beating heart with a positive pressure without causing macroscopic damage to the heart tissue while orienting the probe such that the second electrode is spaced from the heart tissue. A stylet is retractably mounted within the probe, for allowing a physician to maneuver the probe through a vein or the like. Once the probe is in position, it may be replaced by a probe of a different shape. The probe may also be retracted while being inserted, for preventing internal injury to the patient. The stylet may have a noncircular cross-section for restricting directions in which it can bend. In an alternative embodiment, a combination catheter is disclosed, including pacing electrodes for pacing the heart while measuring the potentials thereof. The pacing electrodes of this embodiment are placed near the tip of the catheter, and circumferentially displaced from one another to form an electric dipole for pacing the heart, and in addition are relatively small, to minimize the potential threshold necessary to pace the heart. Such pacing electrodes may be used without the first and second electrodes for measuring potentials.

    Abstract translation: 该装置包括具有尖端部分的探针,安装在尖端部分的端子自由端上的第一电极和沿着尖端部分与第一电极间隔开的用于提供参考电位的第二电极。 探针构造成使得第一电极与正压力的体内打浆心脏的组织保持接触,而不会导致对心脏组织的宏观损伤,同时定向探针使得第二电极与心脏组织间隔开。 探针可伸缩地安装探针,用于允许医师通过静脉等操纵探针。 一旦探头就位,它可以被不同形状的探针代替。 探针也可以在插入时缩回,以防止对患者的内部伤害。 探针可以具有用于限制其可弯曲的方向的非圆形横截面。 在替代实施例中,公开了组合导管,包括用于在测量其电位的同时起搏心脏的起搏电极。 该实施例的起搏电极放置在导管的尖端附近,并且彼此周向地位移以形成用于起搏心脏的电偶极子,此外还相对较小,以最小化步调心脏所需的潜在阈值。 可以使用这种起搏电极而没有用于测量电位的第一和第二电极。

    Apparatus and method for recording monophasic action potentials from an
in vivo heart

    公开(公告)号:US4955382A

    公开(公告)日:1990-09-11

    申请号:US332875

    申请日:1989-04-03

    Abstract: The apparatus comprises a probe having a tip portion, a first electrode mounted on a terminal free end of the tip portion and a second electrode spaced along the tip portion from the first electrode for supplying a reference potential. The probe is constructed so as to hold the first electrode in contact with tissue of an in vivo beating heart with a positive pressure without causing macroscopic damage to the heart tissue while orienting the probe such that the second electrode is spaced from the heart tissue.A stylet is retractably mounted within the probe, for allowing a physician to maneuver the probe through a vein or the like. Once the probe is in position, it may be replaced by a probe of a different shape. The probe may also be retracted while being inserted, for preventing internal injury to the patient. The stylet may have a noncircular cross-section for restricting directions in which it can bend. In an alternative embodiment, a combination catheter is disclosed, including pacing electrodes for pacing the heart while measuring the potentials thereof.

    Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios
    10.
    发明授权
    Method and apparatus for improving power amplifier efficiency in wireless communication systems having high peak to average power ratios 有权
    具有高峰值与平均功率比的无线通信系统中的功率放大器效率的提高方法和装置

    公开(公告)号:US08290085B2

    公开(公告)日:2012-10-16

    申请号:US13193589

    申请日:2011-07-28

    CPC classification number: H04W52/343

    Abstract: A power management system and method for a wireless communication device generates an average desired transmit power signal based on at least one of a received signal strength indicator signal and a power control instruction signal from a base station. A power supply level adjustment signal is generated based on the data parameters of an outgoing data stream and at least one environmental information signal. A combination of the power supply level adjustment signal and the average desired transmit power or a gain control signal and an altered version of the power supply level adjustment signal is used to generate a variable power supply signal that is provided to an output amplifier block for sufficiently generating outgoing wireless device radio signals while reducing power loss in the output amplifier block.

    Abstract translation: 用于无线通信设备的电源管理系统和方法基于来自基站的接收信号强度指示符信号和功率控制指令信号中的至少一个产生平均期望的发射功率信号。 基于输出数据流的数据参数和至少一个环境信息信号生成电源电平调整信号。 使用电源电平调整信号和平均期望发送功率或增益控制信号和电源电平调整信号的改变版本的组合来产生可变电源信号,该可变电源信号被提供给输出放大器块用于充分地 产生输出无线设备无线电信号,同时减少输出放大器块中的功率损耗。

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