Fast calibration of electronic components

Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part

Reexamination Certificate

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Details

C455S067140, C455S067130, C455S115200, C375S295000, C375S296000

Reexamination Certificate

active

07369813

ABSTRACT:
The number of measurements needed to calibrate an electrical device is reduced. Apparatus and methods minimize output of one or more unwanted signals by determining a calibration setting, in a minimal number of measurements, from determined distances to a best setting. Each distance to a best setting can be determined as a function of the characteristic of the unwanted signal and the measured unwanted signal level. A calibration setting point can be determined by searching for a setting point having a lowest sum of distance errors determined from the calculated distances and from the measured and non measured setting points. The techniques and apparatus are useful for minimizing a number of measurements that would be needed for determining a setting that substantially prevents generation of unwanted output signals, such as carrier leakage (LO-leakage) and unwanted sidebands, and for quickly determining whether an acceptable calibration setting exists for a device.

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PCT Search Reported dated Nov. 17, 2004 in connection with International Application No. PCT/EP 2004/004204.
PCT Written Opinion dated Nov. 17, 2004 in connection with International Application No. PCT/EP 2004/004204.

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