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    • 1. 发明授权
    • Power amplifier control according to a delayed waveform suitable for use in a communication device
    • 根据适用于通信设备的延迟波形的功率放大器控制
    • US06169886A
    • 2001-01-02
    • US09184614
    • 1998-11-02
    • Gregory R. BlackAlexander W. Hietala
    • Gregory R. BlackAlexander W. Hietala
    • H04B700
    • H03G3/3047
    • A wireless communication device (202), such as a cellular telephone, has a power amplifier (218) and a power amplifier control (222). The power amplifier (218) is selectively controllable to amplify, to different output power levels, a signal for transmission. In a high power mode requiring amplification of the signal to a high output power level, the power amplifier control (222) controls the power amplifier to amplify the signal according to a predetermined amplitude waveform (106). In a low power mode requiring amplification of the signal to a low output power level, the power amplifier control controls the power amplifier to amplify the signal according to a delayed one of the predetermined amplitude waveform (300).
    • 诸如蜂窝电话的无线通信设备(202)具有功率放大器(218)和功率放大器控制(222)。 功率放大器(218)可选择性地控制,以将不同的输出功率电平放大到用于传输的信号。 在需要将信号放大到高输出功率电平的高功率模式下,功率放大器控制(222)根据预定的振幅波形(106)控制功率放大器放大信号。 在需要将信号放大到低输出功率电平的低功率模式下,功率放大器控制控制功率放大器根据预定振幅波形(300)中延迟的一个来放大信号。
    • 2. 发明授权
    • Power amplifier saturation detection and correction method and apparatus
    • 功率放大器饱和检测和校正方法及装置
    • US5278994A
    • 1994-01-11
    • US709737
    • 1991-06-03
    • Gregory R. BlackAlexander W. Hietala
    • Gregory R. BlackAlexander W. Hietala
    • H03F1/32H03G3/20H03G3/30H04B1/04
    • H03G3/3047
    • A power amplifier controller for detecting saturation of the power amplifier (203) and corrects the automatic output control voltage (231) to avoid any further saturation. A detector (211) detects the power of the radio frequency (RF) output signal (211) and generates a signal (229) correlated to the detected power. Comparator (217) compares changes in that signal (229) to changes in the voltage of the AOC signal (231). The comparator (217) generates a signal (233) correlated to saturation of the power amplifier (203) for a DSP (223). The DSP (223) checks the status of this signal (233). Upon detecting saturation, an algorithm contained within the DSP methodically reduces the voltage of the AOC signal (231) until there is a change in the power of the RF output signal (211).
    • 一种用于检测功率放大器(203)的饱和度并校正自动输出控制电压(231)以避免进一步饱和的功率放大器控制器。 检测器(211)检测射频(RF)输出信号(211)的功率,并产生与检测到的功率相关的信号(229)。 比较器(217)将该信号(229)的变化与AOC信号(231)的电压变化进行比较。 比较器(217)产生与DSP(223)的功率放大器(203)的饱和相关的信号(233)。 DSP(223)检查该信号的状态(233)。 在检测到饱和时,包含在DSP内的算法有效地降低了AOC信号(231)的电压,直到RF输出信号(211)的功率发生变化。
    • 6. 发明授权
    • Tunable notch filtering in multi-transmit applications
    • 多传输应用中的可调陷波滤波
    • US09124355B2
    • 2015-09-01
    • US13591539
    • 2012-08-22
    • Gregory R. BlackArmin W. Klomsdorf
    • Gregory R. BlackArmin W. Klomsdorf
    • H04B1/44H04B1/525
    • H04B1/525Y10T29/49117
    • A radio frequency (RF) communication device comprises a first signal propagating circuit and a second signal propagating circuit, which together enables simultaneous transmission. The first signal propagating circuit is configured with a first tunable notch filter within a first transmit path and the second signal propagating circuit is configured with a second tunable notch filter within a second transmit path. A controller is communicatively coupled to a respective first tuning component and second tuning component of the tunable notch filters. The controller selectively tunes at least one of the tunable notch filters during signal propagation to produce a specific combined notch filtering response that reduces a level of IMD on at least one receive carrier frequency of at least one propagating signal. Aspects of the disclosure also provide a method for making the communication device.
    • 射频(RF)通信设备包括第一信号传播电路和第二信号传播电路,它们一起实现同时传输。 第一信号传播电路在第一发射路径内配置有第一可调陷波滤波器,并且第二信号传播电路在第二发射路径内配置有第二可调陷波滤波器。 控制器通信地耦合到可调谐陷波滤波器的相应的第一调谐部件和第二调谐部件。 控制器在信号传播期间选择性地调谐可调陷波滤波器中的至少一个,以产生特定的组合陷波滤波响应,其降低至少一个传播信号的至少一个接收载波频率上的IMD电平。 本公开的方面还提供了一种用于制作通信设备的方法。
    • 8. 发明授权
    • Method and device for charging energy storage devices
    • 蓄能装置的充电方法和装置
    • US08671291B2
    • 2014-03-11
    • US13160662
    • 2011-06-15
    • Wayne W. BallantyneGregory R. BlackRobert M. JohnsonRussell L. Simpson
    • Wayne W. BallantyneGregory R. BlackRobert M. JohnsonRussell L. Simpson
    • G06F1/26
    • G06F1/266
    • Disclosed is a method (200) for charging energy storage devices. The method (200) can include a battery charging method in a power supply client connected by a data bus to a power supply host. The method (200) includes the steps of: detecting (210) a state of the power supply host; determining (220) a limit of current from the host to the client; allocating (230) a portion of the limit to a battery charging current; and charging (240) a battery of the client at the battery charging current such that the current from the host is greater than a recommended limit and less than or equal to the determined amount. Thus a client device can confidently charge at a rate which causes the port current to exceed a recommended limit, such as a USB port limit of 500 mA, when allowed by conditions of the host device. Advantageously, the method can help to expedite the charging time of a client battery, notwithstanding the number of other clients connected to the same host device for charging, thus minimizing the wait time of a user.
    • 公开了一种用于对能量存储装置进行充电的方法(200)。 方法(200)可以包括在通过数据总线连接到电源主机的电源客户端中的电池充电方法。 方法(200)包括以下步骤:检测(210)电源主机的状态; 确定(220)从主机到客户端的电流限制; 将极限的一部分(230)分配(230)到电池充电电流; 并以所述电池充电电流对所述客户端的电池进行充电(240),使得来自所述主机的电流大于推荐限度且小于或等于所确定的量。 因此,当主机设备的条件允许时,客户端设备可以以使端口电流超过推荐限制(例如500mA的USB端口限制)的速率自信地充电。 有利地,该方法可以帮助加快客户端电池的充电时间,尽管连接到相同主机设备的其他客户端的数量用于计费,从而最小化用户的等待时间。
    • 9. 发明申请
    • TUNABLE NOTCH FILTERING IN MULTI-TRANSMIT APPLICATIONS
    • 多传输应用中的无效插槽滤波
    • US20140055210A1
    • 2014-02-27
    • US13591539
    • 2012-08-22
    • Gregory R. BlackArmin W. Klomsdorf
    • Gregory R. BlackArmin W. Klomsdorf
    • H03H7/01H05K13/00
    • H04B1/525Y10T29/49117
    • A radio frequency (RF) communication device comprises a first signal propagating circuit and a second signal propagating circuit, which together enables simultaneous transmission. The first signal propagating circuit is configured with a first tunable notch filter within a first transmit path and the second signal propagating circuit is configured with a second tunable notch filter within a second transmit path. A controller is communicatively coupled to a respective first tuning component and second tuning component of the tunable notch filters. The controller selectively tunes at least one of the tunable notch filters during signal propagation to produce a specific combined notch filtering response that reduces a level of IMD on at least one receive carrier frequency of at least one propagating signal. Aspects of the disclosure also provide a method for making the communication device.
    • 射频(RF)通信设备包括第一信号传播电路和第二信号传播电路,它们一起实现同时传输。 第一信号传播电路在第一发射路径内配置有第一可调陷波滤波器,并且第二信号传播电路在第二发射路径内配置有第二可调陷波滤波器。 控制器通信地耦合到可调谐陷波滤波器的相应的第一调谐部件和第二调谐部件。 控制器在信号传播期间选择性地调谐可调陷波滤波器中的至少一个,以产生特定的组合陷波滤波响应,其降低至少一个传播信号的至少一个接收载波频率上的IMD电平。 本公开的方面还提供了一种用于制作通信设备的方法。
    • 10. 发明授权
    • Power amplifier
    • 功率放大器
    • US5220290A
    • 1993-06-15
    • US886565
    • 1992-05-21
    • Gregory R. Black
    • Gregory R. Black
    • H03G3/20H03G3/30
    • H03G3/3047
    • An amplifier which contains two amplifier stages. Each amplifier stage (433,435) utilizes a diode (407) to attenuate the RF input signal (401) and to stabilize the bias current over temperature. The two amplifier stages (433, 435) are cascaded together. The control voltage inputs are serially coupled through a transistor (423). The transistor (423) shifts the voltage of the control signal (425) down, thereby, shifting the control characteristics and AM characteristics of the first amplifier stage (435) relative to the second amplifier stage (433).
    • 一个包含两个放大器级的放大器。 每个放大级(433,435)利用二极管(407)来衰减RF输入信号(401)并使偏置电流稳定在温度上。 两个放大器级(433,435)级联在一起。 控制电压输入通过晶体管串联耦合(423)。 晶体管(423)将控制信号(425)的电压向下移位,从而相对于第二放大级(433)移位第一放大级(435)的控制特性和AM特性。