Tones processing system in a global navigation satellite system receiver

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United States of America Patent

PATENT NO 11789159
APP PUB NO 20210239843A1
SERIAL NO

17235967

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A tones processing system including an interference tone determination module (ITDM), an interference tone tracker module (ITTM) and an interference tone removal module (ITRM) is provided. The ITDM sequentially searches for one or more continuous wave interference (CWI) tones in N samples of intermediate frequency (IF) data within a programmable signal frequency band. The ITTM tracks the detected CWI tones. The ITRM removes the tracked CWI tones from the N samples of IF data using one or more interference tone removal units (ITRUs). Each of the ITRUs includes a second signal generator, a second mixer, a tone filter for suppressing the tracked CWI tones, and a quantizer for reducing the number of processing bits in a tone suppressed output signal. The ITRM performs frequency shift compensation and phase rotation compensation with reduced logic area and power consumption in the global navigation satellite system, receiver.

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Patent Owner(s)

  • ACCORD IDEATION PRIVATE LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chinnadurai, Rajashekaran Chennai, IN 3 0
Kudligi, Hiramat Vikram Bengaluru, IN 3 0
Kumar, Mahesh Mangalore, IN 75 1333
Naveen, Gowdayyanadoddi Shivaiah Bangalore, IN 7 12
Thattam, Kandiyil Manjeeth Mahe, IN 3 0

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