N-th order curve fit for power calibration in a mobile terminal
    31.
    发明授权
    N-th order curve fit for power calibration in a mobile terminal 失效
    N阶曲线适合移动终端中的功率校准

    公开(公告)号:US07529523B1

    公开(公告)日:2009-05-05

    申请号:US11209435

    申请日:2005-08-23

    IPC分类号: H01Q11/12

    CPC分类号: H01Q1/242 H01Q3/28

    摘要: A method for calibrating the output power of a mobile terminal using at least a second order curve fit to describe a power amplifier gain (PAG) setting versus output power characteristic of a power amplifier in a transmitter of the mobile terminal is provided. For each of an upper-band frequency, a mid-band frequency, and a lower-band frequency of a frequency band, multiple measurements of the output power of the mobile terminal are made corresponding to multiple values of the PAG setting, and a curve fit is performed, thereby calculating coefficients defining a polynomial describing the PAG setting versus output power characteristic. Using the polynomials describing the PAG setting versus output power characteristic of the power amplifier for each of the upper-band, mid-band, and lower-band frequencies, values of the PAG setting are determined for each desired output power level for each desired frequency within the frequency band.

    摘要翻译: 提供了一种使用至少二阶曲线来校准移动终端的输出功率的方法,其适合于描述功率放大器增益(PAG)设置与移动终端的发射机中的功率放大器的输出功率特性。 对于频带的上带频率,中频带频率和低频带频率中的每一个,对应于PAG设置的多个值对移动终端的输出功率进行多次测量,并且曲线 执行拟合,由此计算定义描述PAG设置与输出功率特性的多项式的系数。 使用描述PAG设置的多项式与功率放大器对于每个高频带,中频带和低频带频率的输出功率特性,为每个期望频率的每个期望输出功率电平确定PAG设置的值 在频带内。

    Methods and apparatuses for control of a signal in a printing apparatus
    32.
    发明申请
    Methods and apparatuses for control of a signal in a printing apparatus 有权
    用于控制打印装置中的信号的方法和装置

    公开(公告)号:US20080117242A1

    公开(公告)日:2008-05-22

    申请号:US12022654

    申请日:2008-01-30

    IPC分类号: B41J29/38

    摘要: A printing apparatus is provided that precisely control the transition of an electrical signal that causes a printing substance to be deposited. In particular, in some embodiments, a circuit is configured to control the application of a firing pulse to a printing element, and the printing element is configured to control the application of a printing substance. The circuit in this embodiment is configured to condition or control the transition of the firing pulse from the first state to the second state such that current through the printing element dissipates to zero over a period of time that is neither too fast nor too slow.

    摘要翻译: 提供了一种精确地控制使得沉积印刷物质的电信号的转变的打印装置。 特别地,在一些实施例中,电路被配置为控制对打印元件的点火脉冲的应用,并且打印元件被配置为控制打印物质的应用。 本实施例中的电路被配置为调节或控制点火脉冲从第一状态到第二状态的转变,使得通过打印元件的电流在既不太快也不太慢的时间段消散到零。

    Changed files list with time buckets for efficient storage management

    公开(公告)号:US20060259527A1

    公开(公告)日:2006-11-16

    申请号:US11128781

    申请日:2005-05-13

    IPC分类号: G06F17/30

    CPC分类号: G06F16/13 G06F16/1734

    摘要: There is provided, in a computer processing system, an apparatus for managing object data. The apparatus includes a changed objects manager for creating and managing a changed objects list that at least identifies the objects that have changed based on time of change. The changed objects list is associated with a plurality of time buckets. Each of the plurality of time buckets is associated with a respective date and time period and with object change records for objects having a timestamp falling within the respective date and time period. Each of the object change records is associated with a unique object identifier and the timestamp for a corresponding one of the objects. The timestamp specifies a date and a time corresponding to a latest one of a creation time or a most recent update time for the corresponding one of the objects.