Invention Grant
US08594226B2 Method for processing a digital signal in a digital delta-sigma modulator, and digital delta-sigma modulator therefor
有权
用于处理数字delta-sigma调制器中的数字信号的方法，以及用于其的数字delta-sigma调制器
- Patent Title: Method for processing a digital signal in a digital delta-sigma modulator, and digital delta-sigma modulator therefor
- Patent Title (中): 用于处理数字delta-sigma调制器中的数字信号的方法，以及用于其的数字delta-sigma调制器
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Application No.: US12522011Application Date: 2008-01-10
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Publication No.: US08594226B2Publication Date: 2013-11-26
- Inventor: Andreia Cathelin , Antoine Frappe , Andreas Kaiser
- Applicant: Andreia Cathelin , Antoine Frappe , Andreas Kaiser
- Applicant Address: FR Montrouge FR Paris
- Assignee: STMicroelectronics SA,Centre National de la Recherche Scientifique
- Current Assignee: STMicroelectronics SA,Centre National de la Recherche Scientifique
- Current Assignee Address: FR Montrouge FR Paris
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Priority: FR0752701 20070116
- International Application: PCT/FR2008/050051 WO 20080110
- International Announcement: WO2008/102091 WO 20080828
- Main IPC: H04L27/04
- IPC: H04L27/04 ; H04L27/20
Abstract:
The digital delta-sigma modulator includes a signal input for receiving digital samples of N bits, and a digital filter connected to the signal input. The digital filter performs addition/subtraction and integration operations according to a redundant arithmetic coding for delivering digital filtered samples. A quantizer performs a nonexact quantization operation so as to deliver digital output samples of n bits, with n being less than N. The input of the quantizer is connected within the digital filter.
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