Back to results
US 5,384,547 AGranted
Apparatus and method for attenuating a multicarrier input signal of a linear device
AssigneeMotorola, Inc.
InventorsCharles N. Lynk, Jr., Mark Van Horn
Life of this patent
Estimating the term…
Abstract
The apparatus first measures the peak power of a multichannel signal, or representation thereof. The peak power is compared with one or more peak power threshold values. If the measured peak power exceeds a threshold value, the multichannel signal is attenuated prior to being processed by the linear power amplifier.
Claims2
A method for attenuating a multicarrier input signal of a linear device, said method comprising the steps of:
- measuring a peak power of said multicarrier input signal;
- comparing said peak power to a plurality of thresholds;
- and
- attenuating said input signal by an amount relating to a number of said plurality of thresholds exceeded if said peak power exceeds one or more of said plurality of thresholds.
1 more element
A method for attenuating a multicarrier input signal of a linear power amplifier comprising the steps of:
- monitoring said multicarrier signal to produce a representative multicarrier signal;
- measuring a peak power of said representative multicarrier signal;
- comparing said peak power to a first preset threshold;
- attenuating said input signal by a first amount if said peak power exceeds said first preset threshold;
- comparing said peak power to a second preset threshold;
- and
- attenuating said input signal by a second amount if said peak power exceeds said first preset threshold.
4 more elements
Dependencies are inferred from the claim text.