Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2006-12-19
2009-08-18
Le, Thanh C (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C375S324000
Reexamination Certificate
active
07577419
ABSTRACT:
A digital mixer system and method is disclosed. In an embodiment, a digital mixer can receive a modulated signal having a sample rate approximately equal to a clock rate divided by an integer factor. The digital mixer can include a first mixing stage having a first plurality of Coordinate Rotation Digital Computer (CORDIC) elements to serially perform a predetermined number of consecutive CORDIC iterations per clock cycle. The first mixing stage can further have logic to selectively process data received from an output of the first mixing stage. The digital mixer can also include a second mixing stage having a second plurality of CORDIC elements to serially perform a number of consecutive CORDIC iterations per clock cycle. The second mixing stage can also have logic to selectively process data received from an output of the first mixing stage and from an output of the second mixing stage.
REFERENCES:
patent: 5185609 (1993-02-01), DeBord
patent: 5230011 (1993-07-01), Gielis et al.
patent: 5915028 (1999-06-01), Chahabadi
patent: 6175269 (2001-01-01), Gielis et al.
patent: 6184942 (2001-02-01), Patel et al.
patent: 6208671 (2001-03-01), Paulos et al.
patent: 6211924 (2001-04-01), Patel et al.
patent: 6333767 (2001-12-01), Patel et al.
patent: 6480233 (2002-11-01), Limberg
patent: 6512555 (2003-01-01), Patel et al.
patent: 6523147 (2003-02-01), Kroeger et al.
patent: 6526101 (2003-02-01), Patel
patent: 6694026 (2004-02-01), Green
patent: RE38456 (2004-03-01), Patel et al.
patent: 6700936 (2004-03-01), Moss
patent: 6738610 (2004-05-01), Wildhagen
patent: 7071773 (2006-07-01), Kuhn et al.
patent: 2001/0040930 (2001-11-01), Abbey
patent: 2006/0017498 (2006-01-01), Kuhn et al.
patent: 2006/0077300 (2006-04-01), Cheon et al.
patent: 2008/0144743 (2008-06-01), Alderson et al.
Le Thanh C
Sigmatel, Inc.
Toler Law Group
LandOfFree
Digital mixer system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital mixer system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital mixer system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4054468