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:
May. 08, 2001
Filed:
Apr. 14, 2000
Toni Neffling, Espoo, FI;
Nokia Networks, Oy, Espoo, FI;
Abstract
The invention relates to an adaptation method and amplifier arrangement, which comprises feedforward amplifying means (,) which amplify a signal entering the arrangement, and adjusting means (,) which use complex factors &agr; and &bgr;, which are adapted in order to adjust the phase and amplitude of the input signal to the amplifier arrangement. The amplifier arrangement also comprises attenuation means (,) which attenuate the signal amplified by the amplifier (,), means (,) which subtract the attenuated signal from the adapted signal, adjusting means (,) which receive part of the signal entering the arrangement for adaptation by factor a, which is adapted partly by the signal obtained from the adapted signal. Furthermore, the amplifier arrangement comprises means (,) which are connected to the outgoing end of the amplifier (,) and form a predetermined signal, adders (,) which add the predetermined signal to the signal amplified by the amplifying means (,), means (,) which form a conjugate signal of the adapted signal and multiply the conjugate signal by the predetermined signal and control adaptation of factor &bgr; by means of the signal obtained as a result of multiplication.