Apparatus and methods for compensating for signal imbalance in a receiver
US8090043B2 · kind B2 · utility
11Cited by
73References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 13, 2007 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Sep 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/3863
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus, methods and systems for compensating for an I/Q imbalance may include compensating for an imbalance between a first component of a data signal and a second component of the data signal. The data signal may be modulated by a carrier signal having a frequency error. The first component may be characterized by at least one parameter. The method may include receiving the data and carrier signals; selecting a value for the parameter such that the frequency domain energy at negative frequencies is reduced; and modifying at least one of the components based on the value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.