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. 18, 2010
Filed:
Dec. 19, 2006
Miguel Kirsch, Conches, CH;
Régis Cattenoz, Annemasse, FR;
Stéphane Tanrikulu, Annemasse, FR;
Chiara Cattaneo, Sergy, FR;
Fédérico Corsi, Geneva, CH;
Miguel Kirsch, Conches, CH;
Régis Cattenoz, Annemasse, FR;
Stéphane Tanrikulu, Annemasse, FR;
Chiara Cattaneo, Sergy, FR;
Fédérico Corsi, Geneva, CH;
STMicroelectronics N.V., Amsterdam, NL;
Abstract
The transmission band of an analog signal to be transmitted is notched, including sub-carriers to be modulated from digital modulation coefficients respectively associated with the sub-carriers. The method includes providing an initial digital signal from successive frequency-domain groups each containing the digital modulation coefficients respectively associated to the sub-carriers. The initial signal is filtered with a frequency resolution greater than the frequency resolution of the frequency-domain groups to remove frequencies corresponding to the sub-carriers to be removed. The filtered signal is windowed using a windowing mask having a representation in the frequency-domain including a main lobe and secondary lobes. The power spectrum of the lobes decrease faster than the inverse of the frequency squared.