Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing
Reexamination Certificate
2007-08-28
2007-08-28
Koff, Marc S. (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Measured signal processing
C455S003020, C455S003040
Reexamination Certificate
active
10499555
ABSTRACT:
An RF multiple switching apparatus, such as one included in or coupled to a broadcast satellite signal receiver, having a plurality of multiple RF signal input ports for receiving respective ones of a plurality of RF signals, such as broadcast satellite television signals, utilizes a relative signal strength indicator, such as an automatic gain control signal, to determine the difference between the actual input signal that is present at one of the plurality of signal input ports and a false signal that appears to be present at another signal input port of the plurality of signal input ports due to the RF signal bleeding between the multiple signal input ports. During a setup configuration determination or routine, the switching apparatus steps through each RF signal input, extracts pertinent transmission network (such as a satellite transmission network) information, determines a relative signal strength indicator for the RF signal, and compares the obtained information. Setup data for each RF signal input is stored according to the comparison.
REFERENCES:
patent: 6356736 (2002-03-01), Tomasz et al.
patent: 6434374 (2002-08-01), Muterspaugh
patent: 6480551 (2002-11-01), Ohishi et al.
patent: 6486907 (2002-11-01), Farber et al.
patent: 6980529 (2005-12-01), Arsenault
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Search Report dated Apr. 30, 2003.
Bajgrowicz Brian David
Curtis, III John Joseph
Cromarty Brian J.
Koff Marc S.
Lake Joseph J.
Shedd Robert D.
Suglo Janet L
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