Patent ID: 7457374

Claim:
A method of transmitting information in a WLAN (Wireless Local Area Network) network wherein DC offsets are minimized, comprising: applying a start value of a correction signal to a data signal containing at least part of the information to be transmitted; varying the correction signal; determining for each different value of the correction signals, a strength of an indicator signal indicative of a dc offset; identifying, based upon the determined strengths of the indicator signal, an optimum value of the correction signal at which the strength of the indicator signal is at a local extremum, wherein identifying the optimum values comprises one of (1) repeatedly varying the correction signal and determining the strength of the indicator signal until the local extremum is detected, (2) comparing determined strengths of the indicator signal with each other, (3) calculating indicator signal strength differences, (4) interpolating determined strengths of the indicator signal, and (5) calculating a derivative of determined strengths of the indicator signal; and setting the value of the correction signal to the identified optimum value.