Invention Grant
- Patent Title: Signal processing apparatus with sigma-delta modulating block collaborating with notch filtering block and related signal processing method thereof
- Patent Title (中): 具有与陷波滤波块协作的Σ-Δ调制块的信号处理装置及其相关信号处理方法
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Application No.: US13025171Application Date: 2011-02-11
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Publication No.: US08354947B2Publication Date: 2013-01-15
- Inventor: Hsiang-Hui Chang , Caiyi Wang , George Chien , Hsin-Hung Chen , Chih-Jung Chen
- Applicant: Hsiang-Hui Chang , Caiyi Wang , George Chien , Hsin-Hung Chen , Chih-Jung Chen
- Applicant Address: TW Science-Based Industrial Park, Hsin-Chu
- Assignee: Mediatek Inc.
- Current Assignee: Mediatek Inc.
- Current Assignee Address: TW Science-Based Industrial Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Main IPC: H03M3/00
- IPC: H03M3/00
Abstract:
One signal processing apparatus includes a sigma-delta modulating block and a notch filtering block. The sigma-delta modulating block is arranged to perform a sigma-delta modulation upon a signal input and accordingly generate a signal output. The notch filtering block is arranged to perform a notch filtering operation upon the signal output for generating a filtered signal output. Another signal processing apparatus includes a sigma-delta modulating block and a notch filtering block. The sigma-delta modulating block is arranged to perform a sigma-delta modulation upon a signal input and accordingly generate a signal output. The notch filtering block is enabled for performing a notch filtering operation upon the signal output when the signal processing apparatus operates in a first operational mode, and the notch filtering block is disabled when the signal processing apparatus operates in a second operational mode.
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