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    Crosstalk cancellation using load impedence measurements
    2.
    发明申请
    Crosstalk cancellation using load impedence measurements 有权
    使用负载阻抗测量的串扰消除

    公开(公告)号：US20080008325A1

    公开(公告)日：2008-01-10

    申请号：US11482595

    申请日：2006-07-08

    申请人： Michael Holmstrom ,  Bengt Edholm ,  Sven Mattisson

    发明人： Michael Holmstrom ,  Bengt Edholm ,  Sven Mattisson

    IPC分类号： H04H5/00

    CPC分类号： H04S1/00 ,  H04S7/00 ,  H04S7/30

    摘要： A method and ASIC for canceling crosstalk between a first stereo channel and a second stereo channel, wherein a first signal is input to a first output amplifier for the first channel, and a second signal is input to a second output amplifier for the second channel, and an output load for each output amplifier is connected between each output amplifier and a reference amplifier. In one embodiment, the first and second signals are split prior to inputting the signals to the first and second output amplifiers, and a gain-adjusted portion of each signal is added to the other signal on the inputs of the output amplifiers. In another embodiment, the first and second input signals are again split into two paths each. While a first path of each signal is inputted to each signal's respective output amplifier, the second paths of the first and second signals are adding together. The resulting sum is adjusted by a gain function, biased by a suitable DC voltage, and input to the reference amplifier.

    摘要翻译： 一种用于消除第一立体声通道和第二立体声通道之间的串扰的方法和ASIC，其中第一信号被输入到第一通道的第一输出放大器，第二信号被输入到用于第二通道的第二输出放大器， 并且每个输出放大器的输出负载连接在每个输出放大器和参考放大器之间。 在一个实施例中，在将信号输入到第一和第二输出放大器之前，第一和第二信号被分离，并且每个信号的增益调整部分被添加到输出放大器的输入端上的另一个信号。 在另一个实施例中，第一和第二输入信号又被分成两个路径。 当每个信号的第一路径被输入到每个信号的相应输出放大器时，第一和第二信号的第二路径被加在一起。 所得到的和通过增益函数调整，由适当的直流电压偏置，并输入到参考放大器。

    Monitoring circuit
    3.
    发明授权
    Monitoring circuit 有权
    监控电路

    公开(公告)号：US06810338B2

    公开(公告)日：2004-10-26

    申请号：US09982801

    申请日：2001-10-22

    申请人： Johan Mercke ,  Kristoffer Ptasinski ,  Niclas Håkansson ,  Bengt Edholm

    发明人： Johan Mercke ,  Kristoffer Ptasinski ,  Niclas Håkansson ,  Bengt Edholm

    IPC分类号： G06F1900

    CPC分类号： G01R19/16542 ,  G01R31/3648

    摘要： There is provided a monitoring device which can be used as a battery monitor in a mobile communications device, such as a mobile phone. The monitoring device includes output registers, from which parameter values can be read by a processor unit. Advantageously, the device makes frequent measurements, and updates parameter values on the basis of those measurements. The updated stored parameter values can then be read by the processor. This has the advantage that the processor does not have to read a large number of values, in order to obtain the information required about the parameters. This therefore has the result that communications on the bus are reduced, and power consumption is reduced. For example, the parameters may include a maximum battery voltage, a minimum battery voltage, and an average battery voltage, as well as parameters relating to the current supplied to the battery during charging.

    摘要翻译： 提供了可以用作诸如移动电话的移动通信设备中的电池监视器的监视设备。 监视装置包括输出寄存器，可由处理器单元读取参数值。有利的是，该装置进行频繁测量，并且基于这些测量来更新参数值。 然后可以由处理器读取更新的存储的参数值。 这具有的优点是处理器不必读取大量的值，以便获得关于参数所需的信息。 因此，总线上的通信减少，并且功耗降低。例如，参数可以包括最大电池电压，最小电池电压和平均电池电压以及与电流相关的参数 在充电期间提供给电池。

    Crosstalk cancellation using load impedence measurements
    4.
    发明授权
    Crosstalk cancellation using load impedence measurements 有权
    使用负载阻抗测量的串扰消除

    公开(公告)号：US07925030B2

    公开(公告)日：2011-04-12

    申请号：US11482595

    申请日：2006-07-08

    申请人： Michael Holmström ,  Bengt Edholm ,  Sven Mattisson

    发明人： Michael Holmström ,  Bengt Edholm ,  Sven Mattisson

    IPC分类号： H04R1/10 ,  H04R5/00

    CPC分类号： H04S1/00 ,  H04S7/00 ,  H04S7/30

    摘要： A method and ASIC for canceling crosstalk between a first stereo channel and a second stereo channel, wherein a first signal is input to a first output amplifier for the first channel, and a second signal is input to a second output amplifier for the second channel, and an output load for each output amplifier is connected between each output amplifier and a reference amplifier. In one embodiment, the first and second signals are split prior to inputting the signals to the first and second output amplifiers, and a gain-adjusted portion of each signal is added to the other signal on the inputs of the output amplifiers. In another embodiment, the first and second input signals are again split into two paths each. While a first path of each signal is inputted to each signal's respective output amplifier, the second paths of the first and second signals are adding together. The resulting sum is adjusted by a gain function, biased by a suitable DC voltage, and input to the reference amplifier.

    摘要翻译： 一种用于消除第一立体声通道和第二立体声通道之间的串扰的方法和ASIC，其中第一信号被输入到第一通道的第一输出放大器，第二信号被输入到用于第二通道的第二输出放大器， 并且每个输出放大器的输出负载连接在每个输出放大器和参考放大器之间。 在一个实施例中，在将信号输入到第一和第二输出放大器之前，第一和第二信号被分离，并且每个信号的增益调整部分被添加到输出放大器的输入端上的另一个信号。 在另一个实施例中，第一和第二输入信号又被分成两个路径。 当每个信号的第一路径被输入到每个信号的相应输出放大器时，第一和第二信号的第二路径被加在一起。 所得到的和通过增益函数调整，由适当的直流电压偏置，并输入到参考放大器。