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:
Jul. 31, 2012
Filed:
Jul. 08, 2010
Patrick Wurm, Strasbourg, FR;
Claire Auer (Wurm), Legal Representative, Strasbourg, FR;
Alexandre Shirakawa, San Jose, CA (US);
Patrick Wurm, Strasbourg, FR;
Claire Auer (Wurm), legal representative, Strasbourg, FR;
Alexandre Shirakawa, San Jose, CA (US);
Abstract
Radiofrequency transmission system including a digital module producing a first complex digital signal quantised on N bits, a module transforming the first complex digital signal into two second complex digital signals with an identical and constant envelope that are phase-shifted with respect to one another, sigma-delta filters quantising the two second signals into third M bits signals, M being less than N, a digital-to-analogue converter converting the third signals into analogue signals, band-pass filters selectively filtering the analogue signals in a predetermined transmission frequency band, amplifiers amplifying the filtered analogue signals, and filters recombining the amplified analogue signals for transmission.