Patent ID: 7376357

Claim:
A method of providing symbology for representing data in transmission of ultra wideband pulses using a baseband signal to increase efficiency of the transmission, comprising: determining a plurality of subsets of bit sequences within a set of bit sequences; representing each of the plurality of subsets of bit sequences with a variable duration ultra wideband pulse or a variable ultra wideband duration space unconstrained by time slots; assigning an ultra wideband pulse duration or an ultra wideband pulse spacing to each of the plurality of subsets of bit sequences wherein each of the plurality of subsets of bit sequences represents a plurality of bits; and using the ultra wideband pulses and the ultra wideband spaces to transmit data, wherein at least one of the plurality of subsets being represented by one of the ultra wideband pulse durations and an adjacent one of the plurality of subsets being represented by one of the ultra wideband space durations.