UWB radio interface with DC offset

Details UWB radio interface with DC offset UWB radio interface with DC offset

2011-03-08

2011-03-08

Ghayour, Mohammad H (Department: 2611)

Pulse or digital communications

Receivers

Automatic baseline or threshold adjustment

C370S338000, C455S280000

Reexamination Certificate

active

07903761

ABSTRACT:
The present invention provides a method and apparatus for correcting direct current (DC) offsets in radio output signals. The invention comprises a radio processor and a baseband processor. During a calibration routine, the baseband processor measures DC offset produced by the radio processor, generates a corresponding DC offset correction value, and writes the correction value to a discrete memory in the radio processor via a serial processor interface. During a subsequent normal receive operation, the radio processor reads the DC offset correction value from memory and feeds it into a into a digital to analog converter to produce an analog signal that in turn is fed into a radio receive path to nullify undesired DC offset.

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