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:
Dec. 05, 2017
Filed:
Dec. 17, 2015
The Regents of the University of California, Oakland, CA (US);
Yuanxun Ethan Wang, Manhattan Beach, CA (US);
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US);
Abstract
A band pass filter is implemented utilizing Channelized Active Noise Elimination (CANE) in combining Finite Impulse Response (FIR) filtering into a radio frequency (RF) transmitter, or transmission path. The FIR filtering is performed in a combination of multiple conversion paths of delay units, vector modulators and PAs so that the low pass characteristics of the FIR filter are upconverted on the adjacent frequency of the carrier to form a band pass filter at the output of the transmitter. Use of CANE avoids the need of high sampling rates, while also eliminating the need of either broad bandwidth delay lines or modulated power amplifiers. The technique is well-suited for suppression of the quantization noise generated in RF transmitters with bitstream modulations such as the Envelope Delta Sigma Modulation (EDSM).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile