Invention Grant
- Patent Title: Offset-free sinc interpolator and related methods
- Patent Title (中): 无偏移的sinc内插器及相关方法
-
Application No.: US12565596Application Date: 2009-09-23
-
Publication No.: US08738679B2Publication Date: 2014-05-27
- Inventor: Rakhel Kumar Parida , Ankur Bal , Anupam Jain
- Applicant: Rakhel Kumar Parida , Ankur Bal , Anupam Jain
- Applicant Address: NL Amsterdam
- Assignee: STMicroelectronics International N.V.
- Current Assignee: STMicroelectronics International N.V.
- Current Assignee Address: NL Amsterdam
- Agency: Hogan Lovells US LLP
- Priority: IN1371/DEL/2009 20090703
- Main IPC: G06F17/17
- IPC: G06F17/17 ; H03H17/06

Abstract:
An offset free sinc interpolating filter includes differentiators operating at a first sampling frequency, integrators operating at a second sampling frequency and one or more coefficient multipliers. The coefficient multipliers multiply a received value with a constant coefficient value to generate an output value. The differentiators, integrators and coefficient multipliers can be operatively coupled to each other, either directly or through other components such as adders and delay elements, or by a combination of the two. In operation, an input signal is provided to the sinc interpolating filter at the first sampling frequency. The input signal is processed by the differentiators, integrators and coefficient multipliers to generate an output signal at the second sampling frequency. Once the output signal is generated, the integrators are reset before the next input cycle begins.
Public/Granted literature
- US20110004647A1 OFFSET-FREE SINC INTERPOLATOR AND RELATED METHODS Public/Granted day:2011-01-06
Information query