Phase coherent numerically controlled oscillator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11418148
APP PUB NO 20210075368A1
SERIAL NO

16953666

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Abstract

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A phase coherent NCO circuit includes a base frequency NCO, a phase seeding circuit, a scaled frequency NCO, a sine/cosine generator. The base frequency NCO is configured to generate base phase values based on a base frequency control word. The phase seeding circuit is coupled to the base frequency NCO. The phase seeding circuit is configured to generate a seed phase value based on the base phase values and a scale factor value. The scaled frequency NCO is coupled to the phase seeding circuit. The scaled frequency NCO is configured to generate oscillator phase values based on the phase seed value and an oscillator frequency control word. The sine/cosine generator is coupled to the scaled frequency NCO. The sine/cosine generator is configured to generate oscillator output samples based on the oscillator phase values.

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Patent Owner(s)

Patent OwnerAddress
TEXAS INSTRUMENTS INCORPORATEDDALLAS TX

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aremallapur, Nagalinga Swamy Basayya Ranebennur, IN 19 37
Murali, Sriram Bengaluru, IN 52 393
Tangudu, Jawaharlal Bengaluru, IN 78 605

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