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1.
公开(公告)号:US20080198048A1
公开(公告)日:2008-08-21
申请号:US11901661
申请日:2007-09-18
申请人: Ari Klein , Yannis Tsividis
发明人: Ari Klein , Yannis Tsividis
IPC分类号: H03M1/00
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。
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2.
公开(公告)号:US07602320B2
公开(公告)日:2009-10-13
申请号:US11901661
申请日:2007-09-18
申请人: Ari Klein , Yannis Tsividis
发明人: Ari Klein , Yannis Tsividis
IPC分类号: H03M1/00
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。
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