/2 spur estimation and correction

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11777513
APP PUB NO 20220239304A1
SERIAL NO

17538746

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Abstract

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A spur correction system for a transmit chain having an interleaving multiplexer. In some embodiments, the spur correction system includes a spur sense chain, a correction controller, and a Q path corrector. The interleaving multiplexer combines signals from multiple bands in response to a clock signal. The spur sense chain estimates an error that is in phase with the clock signal (an I-phase error) and an error that is a derivative of the clock signal (a Q-phase error). The correction controller compensates for the estimated I-phase error by injecting an I-phase correction signal into the transmit chain. The Q path corrector compensates for the estimated Q-phase error by selectively connecting one or more capacitors within the interleaving multiplexer.

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Patent Owner(s)

Patent OwnerAddress
TEXAS INSTRUMENTS INCORPORATED12500 TI BOULEVARD MS 3999 DALLAS TX 75243

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gunasekaran, Karthikeyan Chennai, IN 9 40
Gunturi, Sarma Sudareswara Bengaluru, IN 1 0
Manjunath, Rakesh Bengaluru, IN 2 2
Ramakrishnan, Sthanunathan Bengaluru, IN 44 367
Roychowdhury, Snehasish Dakshin Barasat, IN 1 0
Sharma, Rahul Bengaluru, IN 153 2799
V, S Aswath Kannur, IN 1 0
Venkataraman, Jagannathan Bengaluru, IN 66 200
Viswanathan, Nagarajan Bengaluru, IN 24 121

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