Frequency agile exciter

Details Frequency agile exciter Frequency agile exciter

2006-12-05

2006-12-05

Nguyen, Tony T. (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C455S255000, C455S313000, C455S323000, C341S143000, C341S144000, C375S222000

Reexamination Certificate

active

07146144

ABSTRACT:
Systems and methods are provided for providing high dynamic range operation over a variable range of frequencies. A delta-sigma modulator, having associated frequency characteristics, produces a digital output signal. A digital-to-analog converter converts the digital output signal into an analog signal. A clock circuit provides a clock signal to the delta-sigma modulator and the digital-to-analog converter. A frequency control controls one or more of the clock circuit, the delta-sigma modulator, and the digital-to-analog converter to alter the frequency characteristics of the delta-sigma modulator. A filter circuit can provide one or more passbands to one or more downstream amplifiers ensuring that out of band quantization noise is removed before amplification.

REFERENCES:
patent: 5451949 (1995-09-01), Gundry
patent: 5512897 (1996-04-01), Wilson et al.
patent: 6291924 (2001-09-01), Lau et al.
patent: 6373418 (2002-04-01), Abbey
patent: 6400759 (2002-06-01), Liu et al.
patent: 6442195 (2002-08-01), Liu et al.
patent: 6462689 (2002-10-01), Wong et al.
patent: 6538592 (2003-03-01), Yang et al.
patent: 6563448 (2003-05-01), Fontaine
patent: 6809669 (2004-10-01), Robinson
patent: 6842129 (2005-01-01), Robinson
patent: 6963297 (2005-11-01), Robinson et al.
patent: 2002/0110189 (2002-08-01), Souissi et al.
patent: 2002/0120457 (2002-08-01), Oliveira et al.

Affiliated with

Also associated with

Rating

Frequency agile exciter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency agile exciter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency agile exciter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3714305