Methods and apparatus are presented to allow one receiver architecture to
be used for the reception of two different SDARS signals, such as, for
example, one signal from XM Satellite Radio, the other signal from Sirius
Satellite Radio. The methods and apparatus presented utilize common
receiver functions to process each signal, thereby obviating the need to
duplicate hardware elements. In exemplary embodiments of the present
invention, it can be assumed that both signals will not be received at
the same time, thus allowing for considerable hardware reuse and lowering
the cost of an interoperable receiver. It is emphasized that this
abstract is provided to comply with the rules requiring an abstract which
will allow a searcher or other reader to quickly ascertain the subject
matter of the technical disclosure. It is submitted with the
understanding that it will not be used to interpret or limit the scope or
the meaning of the claims.