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. 10, 2016
Filed:
Jun. 04, 2013
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Rune Johansson, Upplands Väsby, SE;
Louise Ehn, Älvsjö, SE;
Bo Franzon, Bro, SE;
Roy Naddaf, Sollentuna, SE;
Marie O'Loughlin, Stockholm, SE;
Ulf Skärby, Lidingö, SE;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
It is presented a filter apparatus comprising: a first frequency shifter arranged to accept an input signal of the apparatus; a first filter; a second frequency shifter; a second filter; and a third frequency shifter, the output of which is connected to the output of the apparatus. The first frequency shifter, the first filter, the second frequency shifter, the second filter and the third frequency shifter are serially connected; and each one of the first frequency shifter, second frequency shifter and third frequency shifter has separate shift input signals, respectively. A corresponding radio base station assembly and method are also presented.