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:
Jan. 05, 2016
Filed:
Jul. 09, 2012
Thomas Eriksson, Gothenburg, SE;
Mats Rydstrom, Billdal, SE;
Thomas Eriksson, Gothenburg, SE;
Mats Rydstrom, Billdal, SE;
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Abstract
A transmitter comprising a baseband modulator arranged to modulate a complex baseband signal and to output a complex modulated signal x(n) with amplitude g and phase q, i.e. x(n)=g(n)e, to the input port of a filter, the filter in turn having its output coupled to a transmit unit, said filter being arranged to output a filtered complex output signal x(n) with amplitude g but phase m, i.e. x(n)=g(n)e, so that the filter is arranged to affect the phase but not the amplitude of its input signal. The filter is arranged to have as its transfer function for the phase of its input signal the z-transform F(z)=1+wz, where w is a weighting function whose value is determined by means of the additive noise autocorrelation, the phase noise autocorrelation and the signal amplitude of x.