Patent ID: 6894997

Claim:
A method, using a packet transmitter, comprising the steps of: storing input data intended for a receiver, as stored data; demultiplexing the stored data into a plurality of sub-data-sequence channels; spread-spectrum processing the plurality of sub-data-sequence channels by a plurality of chip-sequence signals, respectively, thereby generating a plurality of spread-spectrum channels, with each of the plurality of chip-sequence signals different from other chip-sequence signals in the plurality of chip-sequence signals; combining the plurality of spread-spectrum channels as a multichannel-spread-spectrum signal; generating a header comprising a header-symbol-sequence signal comprising a predefined sequence of symbols spread-spectrum processed with a chip-sequence signal; concatenating said header to the multichannel-spread-spectrum signal, thereby generating a packet-spread-spectrum signal intended for the receiver in the form of a time series of signals comprising the header and the multichannel-spread-spectrum signal; and transmitting on a carrier frequency using radio waves, the packet-spread-spectrum signal over a communications channel.