Systems and methods for companding ADC-DSP-DAC combinations
    1.
    发明申请
    Systems and methods for companding ADC-DSP-DAC combinations 失效
    用于压缩ADC-DSP-DAC组合的系统和方法

    公开(公告)号:US20080198048A1

    公开(公告)日:2008-08-21

    申请号:US11901661

    申请日:2007-09-18

    IPC分类号: H03M1/00

    CPC分类号: H03M7/50 H03M1/186

    摘要: Systems and methods for resizing a signal for use with a fixed-point DSP are provided. More specifically, a process called companding is used in conjunction with fixed-point devices to resize a signal to make use of the available range of these devices. In some embodiments, companding is used to improve the signal-to-noise and distortion ratio. Also, information loss associated with quantization and rounding errors can be reduced in some embodiments.

    摘要翻译: 提供了用于调整用于定点DSP的信号大小的系统和方法。 更具体地,称为压扩的过程与定点设备结合使用,以调整信号的大小以利用这些设备的可用范围。 在一些实施例中,使用压扩来提高信噪比和失真比。 此外,在一些实施例中,可以减少与量化和舍入误差相关联的信息丢失。

    Systems and methods for companding ADC-DSP-DAC combinations
    2.
    发明授权
    Systems and methods for companding ADC-DSP-DAC combinations 失效
    用于压缩ADC-DSP-DAC组合的系统和方法

    公开(公告)号:US07602320B2

    公开(公告)日:2009-10-13

    申请号:US11901661

    申请日:2007-09-18

    IPC分类号: H03M1/00

    CPC分类号: H03M7/50 H03M1/186

    摘要: Systems and methods for resizing a signal for use with a fixed-point DSP are provided. More specifically, a process called companding is used in conjunction with fixed-point devices to resize a signal to make use of the available range of these devices. In some embodiments, companding is used to improve the signal-to-noise and distortion ratio. Also, information loss associated with quantization and rounding errors can be reduced in some embodiments.

    摘要翻译: 提供了用于调整用于定点DSP的信号大小的系统和方法。 更具体地,称为压扩的过程与定点设备结合使用,以调整信号的大小以利用这些设备的可用范围。 在一些实施例中,使用压扩来提高信噪比和失真比。 此外,在一些实施例中,可以减少与量化和舍入误差相关联的信息丢失。