Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector
Reexamination Certificate
2005-05-03
2005-05-03
Nguyen, Duc M. (Department: 2685)
Telecommunications
Receiver or analog modulated signal frequency converter
With wave collector
C455S287000, C455S169100, C455S191200, C455S193200, C455S323000, C334S055000
Reexamination Certificate
active
06889036
ABSTRACT:
An integrated center frequency selectable resonant coupling network suited for use in an integrated circuit is disclosed. The network includes an integrated coupling transformer having a secondary winding for coupling to a load and a primary winding for coupling to a source; a first integrated capacitive circuit controllably coupled across one of the primary and secondary windings and when so coupled operable to resonate with the integrated coupling transformer at a frequency in a first frequency band; and a second integrated capacitive circuit coupled across a second one of the primary and the secondary windings that is operable to resonate with the integrated coupling transformer at a frequency in a second frequency band. The method is in an IC and includes providing and coupling an input signal within alternatively a first frequency band and a second frequency band to a primary winding of an integrated coupling transformer; controlling an integrated switched capacitor network, coupled to the transformer, to provide a coupling network that is alternatively and respectively resonant at a first and second frequency within the first and second frequency band thus selectively providing an output signal at a secondary winding of the transformer; and down converting the output signal.
REFERENCES:
patent: 3022477 (1962-02-01), Regnier
patent: 3824599 (1974-07-01), Haswell
patent: 4970479 (1990-11-01), Landt et al.
patent: 5020146 (1991-05-01), Pugel
patent: 5258728 (1993-11-01), Taniyoshi et al.
patent: 5446447 (1995-08-01), Carney et al.
patent: 5644598 (1997-07-01), Bidese
patent: 5715531 (1998-02-01), Liu et al.
patent: 5834975 (1998-11-01), Bartlett et al.
patent: 5872489 (1999-02-01), Chang et al.
patent: 6026286 (2000-02-01), Long
patent: 6157822 (2000-12-01), Bastani et al.
patent: 6181218 (2001-01-01), Clark et al.
patent: 6549096 (2003-04-01), Groves et al.
Ballweber Brian M.
Dow Stephen W.
Bethards Charles W.
Freescale Semiconductor Inc.
Nguyen Duc M.
LandOfFree
Integrated frequency selectable resonant coupling network... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated frequency selectable resonant coupling network..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated frequency selectable resonant coupling network... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3418223