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. 10, 2011
Filed:
Aug. 09, 2006
Rahim Bagheri, Los Angeles, CA (US);
Ahmad Mirzaei, Los Angeles, CA (US);
Rahim Bagheri, Los Angeles, CA (US);
Ahmad Mirzaei, Los Angeles, CA (US);
WiLinx Corporation, Carlsbad, CA (US);
Abstract
Embodiments of the present invention include programmable filter circuits and methods. In one embodiment, the present invention includes a programmable filter for filtering an input signal comprising a storage element for storing a plurality of digital values representing a discrete time window function, and a plurality of filter channels, each channel comprising a multiplying digital-to-analog converter having a plurality of digital inputs coupled to the storage element and an analog input for receiving said input signal to be filtered, at least one capacitor having at least one terminal coupled to an output of the multiplying digital-to-analog converter, and a sampling device coupled between the at least one terminal of the at least one capacitor and an output of the filter. In another embodiment, the present invention includes a software defined radio.