Invention Grant
- Patent Title: Low complexity non-integer adaptive sample rate conversion
- Patent Title (中): 低复杂度非整数自适应采样率转换
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Application No.: US14336132Application Date: 2014-07-21
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Publication No.: US09264065B2Publication Date: 2016-02-16
- Inventor: Gregary B. Prince
- Applicant: Raytheon Company
- Applicant Address: US MA Waltham
- Assignee: Raytheon Company
- Current Assignee: Raytheon Company
- Current Assignee Address: US MA Waltham
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: H03M7/00
- IPC: H03M7/00 ; H03H17/04 ; H03H17/02 ; H03M5/02

Abstract:
Generally described herein are methods and systems for sample rate conversion of non-integer and integer factors. In one or more embodiments an apparatus can include a sample rate converter that can include an input configured to receive an input signal with a first frequency and an output configured to provide an output signal with a second frequency different from the first frequency. The sample rate converter can include a filter coefficient lookup table and a numerically controlled oscillator configured to provide filter coefficients from the filter coefficient lookup table at a rate that is a function of the first frequency and the second frequency. The sample rate converter can include a multiplier configured to produce an output that is the product of a filter coefficient of the filter coefficients from the numerically controlled oscillator and a sample of an input signal and an accumulator configured to sum an output of the multiplier and provide a result of the summation when the accumulator receives an indicator to dump the result.
Public/Granted literature
- US20140327558A1 LOW COMPLEXITY NON-INTEGER ADAPTIVE SAMPLE RATE CONVERSION Public/Granted day:2014-11-06
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