DATA COMMUNICATIONS ACCESS APPARATUS

Brand	Owner	Address	Description
CPX	DYNATECH COMMUNICATIONS, INC.		data communications access apparatus, namely high-speed packet/frame switches;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Methods and apparatus for optimizing wireless communications channels by employing multi-channel modulation techniques in wireless communication systems is disclosed. The wireless communications channel may comprise tones, and data may be allocated differently among the different tones according to the channel characterization measurements. In one embodiment, a method may include: transmitting data over a wireless channel using a first station (e.g., an access point), receiving the data using a second station, performing calculations on the received data, and allocating subsequent data transmissions among the tones according to the calculations. Other embodiments may utilize superfluous data transmissions-for example, data coming from the access point that is intended for other stations-in order to calculate channel characterization. Preferably, any portion of the transmitted data (e.g., preamble, header, data, etc.) may be used to calculate channel characterization.