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    • 47. 发明申请
    • Digital signal processing apparatus and digital signal processing method
    • 数字信号处理装置和数字信号处理方法
    • US20060071833A1
    • 2006-04-06
    • US11219757
    • 2005-09-07
    • Nobukazu SuzukiGen IchimuraMasayoshi Noguchi
    • Nobukazu SuzukiGen IchimuraMasayoshi Noguchi
    • H03M3/00
    • G06F7/602H03M7/3028H03M7/304
    • The present invention provides a digital signal processing apparatus which can perform batch processing of mixing and gain controlling, etc., one time while the frequency characteristics of different filters are being mixed to a plurality of input signals in case of the re-quantization only once. The present invention provides a digital signal processing apparatus for outputting a 1-bit digital signal by performing a delta sigma modulation process on a plurality of input signals, which includes a plurality of integrating unit, a plurality of feedforward arithmetic units that supply an arithmetic result calculated based on an independent feedforward coefficient to each input signal, to each of the plurality of the integrating units, a quantizing unit that quantizes the integrated output outputted from one of the plurality of the integrating unit, a plurality of feedback arithmetic units that supply an arithmetic result obtained by calculating quantized data outputted from the quantizing unit based on the independent feedback coefficient, to each of the plurality of the integrating units, and a mixing unit that mixes the output of the integrating unit of the front stage, the output of the feedforward arithmetic unit and the output of the feedback arithmetic unit and supplies the mixed result to the integrating unit of the rear stage.
    • 本发明提供了一种数字信号处理装置,其可以在将重新量化仅一次的情况下将不同滤波器的频率特性混合到多个输入信号中进行混合和增益控制等的批量处理 。 本发明提供了一种数字信号处理装置,用于通过对多个输入信号执行ΔΣ调制处理来输出1位数字信号,该多个输入信号包括多个积分单元,提供算术结果的多个前馈运算单元 基于对每个输入信号的独立的前馈系数计算到所述多个积分单元中的每一个;量化单元,其对从所述多个所述积分单元中的一个输出的积分输出进行量化;多个反馈运算单元, 通过基于独立反馈系数计算从量化单元输出的量化数据到多个积分单元中的每一个获得的算术结果,以及混合单元,其混合前级积分单元的输出, 前馈算术单元和反馈算术单元的输出并提供 混合后果的整合单元。