Method and architecture for dual-mode linear and saturated power amplifier operation
    1.
    发明授权
    Method and architecture for dual-mode linear and saturated power amplifier operation 有权
    双模线性和饱和功率放大器操作的方法和架构

    公开(公告)号:US07177370B2

    公开(公告)日:2007-02-13

    申请号:US10740238

    申请日:2003-12-17

    IPC分类号: H04K1/02 H04L25/03 H04L25/49

    摘要: An RF transmitter provides both GSM and EDGE capability by implementing collector voltage control over the power transistor(s) in a power amplifier. During EDGE mode, linear base-biasing a power amplifier (PA) allows collector control to provide either saturated mode PA operation (during ramp up/ramp down) or linear mode PA operation (during data burst). Collector control can therefore be used to provide the accurate ramp up and ramp down profiles required for both GSM and EDGE burst output signals, and can also be used to set the level of the constant envelope data burst of a GSM burst output signal, while linear mode PA operation can provide the non-constant envelope EDGE data burst. A variable gain amplifier is used to adjust the input signal to the power amplifier such that the desired transmission level is achieved.

    摘要翻译: RF发射器通过在功率放大器中的功率晶体管上实现集电极电压控制来提供GSM和EDGE能力。 在EDGE模式下,功率放大器(PA)的线性基极偏置允许集电极控制提供饱和模式PA操作(斜坡上升/斜降)或线性模式PA操作(数据突发期间)。 因此,收集器控制可用于提供GSM和EDGE突发输出信号所需的准确的上升和下降曲线,并且还可用于设置GSM突发输出信号的恒定包络数据突发的电平,而线性 模式PA操作可以提供非恒定包络边缘数据突发。 可变增益放大器用于调整到功率放大器的输入信号,从而实现所需的传输电平。

    Methods and apparatus for self-adaptive, learning data analysis
    2.
    发明授权
    Methods and apparatus for self-adaptive, learning data analysis 失效
    用于自适应,学习数据分析的方法和装置

    公开(公告)号:US08095447B2

    公开(公告)日:2012-01-10

    申请号:US12029056

    申请日:2008-02-11

    IPC分类号: G06Q40/00

    CPC分类号: G06Q40/00 G06Q40/06

    摘要: Methods and apparatus for analyzing financial data generally includes a predictive modeling system. The predictive modeling system may include an artificial agent responsive to an input data set. The artificial agent may produce an estimated data set including a market conditions data set. The market conditions data may include an estimate of at least one of liquidity of a market, strategy of a counterparty, and an effect of information leakage. The artificial agent may determine a predictability value for the estimated data set. The predictive modeling system may also include an agent factory responsive to the input data set. The agent factory may generate an artificial agent in response to the input data set.

    摘要翻译: 用于分析财务数据的方法和装置通常包括预测建模系统。 预测建模系统可以包括响应于输入数据集的人造代理。 人造剂可以产生包括市场条件数据集的估计数据集。 市场状况数据可以包括对市场的流动性,交易对手的策略和信息泄露的影响中的至少一个的估计。 人造剂可以确定估计数据集的可预测性值。 预测建模系统还可以包括响应于输入数据集的代理工厂。 代理工厂可以根据输入数据集生成人工代理。