included in at least one embodiment of the invention the appearances of the phrase u201c in one embodiment u201d in various places in the specification are not necessarily all referring to the same embodiment nor are separate or alternative embodiments necessarily mutually exclusive of other embodiments the same applies to the term u201c implementation u201d while the exemplary embodiments of the present invention have been described with respect to processes of circuits including possible implementation as a single integrated circuit a multi chip module a single card or a multi card circuit pack the present invention is not so limited as would be apparent to one skilled in the art various functions of circuit elements may also be implemented as processing blocks in a software program such software may be employed in for example a digital signal processor micro controller or general purpose computer although the elements in the following method claims if any are recited in a particular sequence with corresponding labeling unless the claim recitations otherwise imply a particular sequence for implementing some or all of those elements those elements are not necessarily intended to be limited to being implemented in that particular sequence the present invention can be embodied in the form of methods and apparatuses for practicing those methods the present invention can also be embodied in the form of program code embodied in tangible media such as magnetic.