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:
Oct. 09, 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
The invention relates to a radiofrequency transmission system comprising: means of producing at least one digital signal quantized on N bits; for each of said at least one digital signal, digital processing means including: Sigma-delta filters capable of producing, on the basis of a digital input signal quantized on N bits, a digital output signal quantized on M bits, where M is less than N; downstream from sigma-delta filters, means of repetition over-sampling; and downstream from over-sampling means, convolution means; digital-to-analogue conversion means capable of converting a digital output signal into an analogue signal; and analogue filtering means capable of filtering said analogue signal so as to select a narrow frequency band which includes the second frequency.