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:
Nov. 28, 2017
Filed:
Nov. 22, 2016
Spatial Digital Systems, Inc., Agoura Hills, CA (US);
Donald C. D. Chang, Thousand Oaks, CA (US);
Michael T. H. Lin, Chatsworth, CA (US);
Steve Chen, Pacific Palisades, CA (US);
Spatial Digital Systems, Inc., Agoura Hills, CA (US);
Abstract
A system for reducing undesired interference in a target zone is disclosed. The system comprises a set of M pickup sensors, a beam forming network coupled to the M pickup sensors, and a set of N injectors coupled to the beam forming network. The M pickup sensors pick up undesired signals in real time and generate M pickup signals, M being an integer greater than or equal to 1. The beam forming network comprises a set of M beam forming modules. Each of the M beam forming modules receives a respective one of the M pickup signals and generates N intermediate signals, N being an integer greater than 1. The N intermediate signals generated by each of the M beam forming modules are combined correspondingly with remaining intermediate signals generated by remaining M−1 beam forming modules to generate N interference signals. The N injectors receive and radiate the N interference signals to the target zone.