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:
Apr. 01, 2025
Filed:
Mar. 19, 2021
Linearity, Llc, San Diego, CA (US);
Scott Richard Velazquez, San Diego, CA (US);
Yujia Wang, San Diego, CA (US);
Linearity, LLC, San Diego, CA (US);
Abstract
The present invention is an architecture and method for radio frequency (RF) simultaneous transmit and receive applications that uses linear and nonlinear modeling to generate a very accurate, wideband analog signal that cancels self-interference before it is digitized by the receiver. In addition to this digitally assisted analog cancellation, another layer of signal cancellation is provided with digital blind source separation. Adaptive signal processing continuously monitors the level of cancellation and updates the processing to provide optimal performance in changing conditions (e.g., rapidly changing frequency content, signal power, temperature, etc.). Signal cancellation can be performed on extremely broadband signals providing high levels of cancellation, enabling a full-duplex RF transceiver. Furthermore, the present invention optionally includes an external signal canceller for cancelling unknown interference such as jamming.