System to generate switching criteria and equalize adaptively in data spectrum
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 8, 1994
Grant Date -
N/A
app pub date -
Oct 26, 1990
filing date -
Oct 27, 1989
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system for detecting data spectrum distortion in a transmitted signal, in particular distortion caused by selective fading. The system includes: two blocks in parallel, which act on the spectrum average power of the input signal in an equal but opposite manner (i.e. they have equal slopes but act with opposite effect on the amplitude of the input signal versus frequency); two detectors which detect the average power output from the two respective blocks, each being associated with one of the blocks; and one comparitor for comparing the outputs of the two detectors. The system allows one to detect the asymmetries of the data spectrum and, by adding an AGC and a reference voltage, information related to the notch frequency f.sub.o is also obtained. The distortion measurement obtained in this manner allows one to generate a switching criterion, as a countermeasure for selective fadings in the transmitted signal.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully