Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By presence or absence pulse detection
Reexamination Certificate
2006-05-17
2009-02-03
Cox, Cassandra (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific signal discriminating without subsequent control
By presence or absence pulse detection
C327S065000
Reexamination Certificate
active
07486114
ABSTRACT:
A signal detector and method to detect the presence or absence of an incoming differential signal. The method nullifies the DC off-set of the signal detector so that it can detect a signal within a very narrow window. The common mode levels of the signal and reference paths are used for calibration which is done automatically by use of an embedded algorithm residing in a digital block. The calibration range and resolution are predetermined to cope with the technology, modeling, design methodology and human error.
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Chen Minhan
Hsu Louis
Natonio Joseph
Selander Karl D.
Sorna Michael A.
Cockburn Joscelyn G.
Cox Cassandra
International Business Machines - Corporation
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