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. 11, 2010
Filed:
Jun. 10, 2005
Applicant:
Håkan Berg, Göteborg, SE;
Inventor:
Håkan Berg, Göteborg, SE;
Assignee:
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A phase shifter device having two bandwidth modes arranged for altering the electrical length of a signal path between at least two different values, which device is adapted for guiding a signal through at least one of at least a first signal path having a first phase and amplitude filter characteristics for varying frequency of the signal, and a second signal path, having a second phase and amplitude filter characteristics for varying frequency of the signal. At least one of said first and second phase and amplitude filter characteristics is realized by means of an all-pass filter.