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AssigneeParkerVision, Inc.
InventorsGregory S. Rawlins, Kevin Brown, Michael W. Rawlins, David F. Sorrells
Estimating the term…
Methods and apparatuses for reducing DC offsets in a communication system are described. In a first aspect, a feedback loop circuit reduces DC offset in a wireless local area network (WLAN) receiver channel. The frequency response of the feedback loop circuit can be variable. In a second aspect, a circuit provides gain control in a WLAN receiver channel. The stored DC offset is subtracted from the receiver channel. First and second automatic gain control (AGC) amplifiers are coupled in respective portions of the receiver channel. In a third aspect, a feedback loop circuit reduces DC offset in a WLAN receiver channel. The feedback loop circuit includes a storage element that samples and stores receiver channel DC offset. The loop is opened, and the DC offset stored in the storage element is subtracted from the receiver channel. Circuits for monitoring DC offset, and for providing control signals for controlling the frequency response of the DC offset reducing circuits are also provided.
An apparatus for reducing a DC offset voltage in a receiver channel of a communication channel, comprising:
An apparatus for reducing DC offset in a communication channel, comprising:
A method for reducing DC offset in a communication channel, comprising the steps of:
An apparatus for reducing a DC offset voltage in a communication channel, comprising:
Dependencies are inferred from the claim text.