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:
Jun. 30, 2026
Filed:
Dec. 05, 2024
Cable Television Laboratories, Inc., Louisville, CO (US);
Ruoyu Sun, Westminster, CO (US);
Dorin Gheorghe Viorel, Erie, CO (US);
Cable Television Laboratories, Inc., Louisville, CO (US);
Abstract
Methods and apparatuses for noise removal are provided. A noise removal method may determine multiple channel impulse responses (CIRs) and multiple power delay profiles (PDPs) corresponding to the CIRs collected at multiple spatial-separated positions. Initially, the noise removal method may apply a dynamic noise threshold based on a false-alarm probability to generate an initial denoised signal. Thereafter, the noise removal method may apply a delay window to the initial denoised signal to generate an intermediate denoised signal. Finally, the noise removal method may perform a persistence check on the intermediate denoised signal to generate the final denoised signals, assuming a multiple component present in multiple CIRs when the transmitter or receiver moves in a small distance which is not true for the random noise. The false alarm probability, the delay window, and/or the persistence check may be dynamically optimized for a specific environment.