Invention Grant
- Patent Title: Reduction of small spurs in transmitters
- Patent Title (中): 减少发射机中的小马刺
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Application No.: US13765667Application Date: 2013-02-12
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Publication No.: US09112748B2Publication Date: 2015-08-18
- Inventor: Bhushan Shanti Asuri , Shrenik Patel
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Main IPC: H04L25/08
- IPC: H04L25/08 ; H04B1/04

Abstract:
An apparatus for reducing spurs is described. The apparatus includes a coarse digital to analog converter (DAC). The apparatus also includes a correction term generator. The correction term generator generates a correction term. The correction term has an amplitude within a dynamic range of the coarse digital to analog converter (DAC). The apparatus also includes a baseband filter. The correction term is selected such that the baseband filter reduces the correction term to an amplitude approximating that of a spur in a transmit signal. The correction term is used to reduce a spur.
Public/Granted literature
- US20130208826A1 REDUCTION OF SMALL SPURS IN TRANSMITTERS Public/Granted day:2013-08-15
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