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. 19, 2015
Filed:
Feb. 08, 2013
Ericsson Modems SA, Le Grand-Saconnex, CH;
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL), Stockholm, SE;
Abstract
A modulator comprises a polar generation stage that generates an amplitude and phase component of a modulation signal, a differentiator stage that generates a differentiated phase component by differentiating the phase component; and an event detection stage that detects a high bandwidth event by detecting the amplitude component and/or the differentiated phase component meeting an event criterion. An inversion stage generates a modified amplitude component by inverting the amplitude component in response to detecting the high bandwidth event. A phase offset stage generates a modified differentiated phase component by, in response to detecting the high bandwidth event, adding to the differentiated phase component a phase offset having a magnitude of 180° and a sign opposite to a sign of the differentiated phase component. Amplitude and phase modulation stages employ the modified amplitude component and the modified differentiated phase component to respectively modulate the amplitude and frequency of a carrier signal.