Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate
2008-05-06
2008-05-06
Vuong, Quochien B. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
C455S115300, C455S226200
Reexamination Certificate
active
07369812
ABSTRACT:
In order to provide a method of determining the signal strength in a receiver or transmitter with complex signal processing using the in-phase channel (I channel) and the quadrature channel (Q channel), by means of which it is also possible to reliably determine the signal strength in receivers with a low intermediate frequency, it is proposed that the field strength signals of the I channel and of the Q channel are fed to an evaluation unit and that, in the evaluation unit, an overall field strength signal is generated on a logarithmic scale without intermediate frequency residues from the individual field strength signals.
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patent: 6721548 (2004-04-01), Mohindra et al.
patent: 2003/0181179 (2003-09-01), Darabi
patent: WO 01 47154 (2001-06-01), None
NXP B.V.
Vuong Quochien B.
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