System and method for IQ imbalance estimation using loopback with frequency offset

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United States of America Patent

PATENT NO 8290458
APP PUB NO 20090325516A1
SERIAL NO

12165526

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Abstract

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Systems and methods for estimating IQ imbalance in a communication system are provided. In various embodiments, a device is configured to perform a self-characterization. The self-characterization is performed over an RF loopback circuit. In some embodiments, a probe is transmitted over the RF loopback circuit. The probe uses a frequency offset such that an image related to one IQ imbalance is separated from an image related to another IQ imbalance. An imbalance estimate is calculated based on processing of the probe.

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Patent Owner(s)

Patent OwnerAddress
ENTROPIC COMMUNICATIONS INC6290 SEQUENCE DRIVE SAN DIEGO CA 92121

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Safavi, Saeid San Diego, US 41 732

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  • 8 Citation Count
  • H04B Class
  • 2.29 % this patent is cited more than
  • 13 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges4574842326014911066362526176301 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +050100150200250300350400450500550600650700750800

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