Telecommunications – Receiver or analog modulated signal frequency converter – Convertible to different type
Patent
1995-08-10
1998-03-24
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Convertible to different type
4551881, 455214, 455266, 455307, 455324, 455334, 375328, 375350, 329317, H04B 116
Patent
active
057323372
ABSTRACT:
A digital mixer-filter-decimator (MFD) is disclosed which is reconfigurable so that it can be used in both modes of operation of a dual mode receiver such as an AM/FM receiver. In either mode of operation the MPD performs filtering and decimation operations on separate data streams containing alternate samples of a digital input data stream. In the FM mode a mixing operation is also enabled to produce a complex output comprising in-phase and quadrature components. The mixing operation is disabled in the AM mode and the filtered and decimated outputs are combined to provide a real output. The same decimator filter can be used in both modes.
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Wargnier James Alfred
Whikehart J. William
Eisenzopf Reinhard J.
Ford Motor Company
May Roger L.
Mollon Mark L.
Sobutka Philip
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