The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 2015
Filed:
May. 08, 2009
Risto Tapani Martikkala, Oulu, FI;
Kari Tapio Reponen, Kontio, FI;
Tapio Mikael Vuopala, Haukipudas, FI;
Risto Tapani Martikkala, Oulu, FI;
Kari Tapio Reponen, Kontio, FI;
Tapio Mikael Vuopala, Haukipudas, FI;
NOKIA SOLUTIONS AND NETWORKS OY, Espoo, FI;
Abstract
Two input signals are amplified and combined into an output signal by first and second amplification stages and a combiner element. The first amplification stage includes a first signal modification unit and a first amplifier which receives a first input signal and provides a first intermediate signal. The second amplification stage includes at least a second amplifier which receives a second input signal and provides a second intermediate signal. The combiner element combines the first and the second intermediate signals and produces the output signal. In addition, a sensor senses a reflected signal on a signal line connecting the first amplifier and the combiner element and a feedback loop extends between the sensor and the signal modification unit. The signal modification unit is adapted to modify the first input signal depending on a measurement signal output by the first sensor.