Telecommunications – Transmitter – Measuring – testing – or monitoring of transmitter
Reexamination Certificate
2011-06-14
2011-06-14
Nguyen, Tony T (Department: 2618)
Telecommunications
Transmitter
Measuring, testing, or monitoring of transmitter
C455S127100, C455S226100
Reexamination Certificate
active
07962109
ABSTRACT:
A system and method for detecting and correcting over-current and/or over-voltage conditions in power amplifier circuitry in a transmit chain of a mobile terminal are provided. In general, over-current detection and correction circuitry combines a current detection signal indicative of a current provided to or drained by the power amplifier circuitry during ramp-up for a transmit burst and a substantially inverse current ramping profile to provide a first constant value. The first constant value is compared to a current threshold or limit value to determine whether an over-current condition exists. If an over-current condition exists, the over-current detection and correction circuitry operates to reduce the output power of the power amplifier circuitry during ramp-up for the transmit burst to correct for the over-current condition. In a similar manner, over-voltage detection circuitry operates to detect and correct over-voltage conditions during ramp-up for the transmit burst.
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Arkiszewski Roman Zbigniew
Hietala Alexander Wayne
Jaoude Fares
Stockstad Troy
Nguyen Tony T
RF Micro Devices, Inc.
Withrow & Terranova, P.L.L.C.
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