| http://www.w3.org/ns/prov#value | - e comprising: a preamble code circuit configured to output a preamble including a first preamble code comprising n bits and a second preamble code comprising n bits, wherein n is an integer and wherein the numberof bits of the first preamble code having a first logic level is different from the number of bits of the second preamble code having the first logic level; and an output circuit configure
|