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. 17, 1998
Filed:
Jul. 03, 1996
Christen Rauscher, Alexandria, VA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A channelized protection circuit for protecting the front-end of a receiver rom the detrimental effects of interference signals within the bandwidth of received signals is disclosed. The channelized protection circuit comprises: a frequency demultiplexer for separating a broadband input signal into a plurality of different signal components in respective contiguous frequency channels; a plurality of signal conditioning sub-circuits respectively responsive to the plurality of different signal components for selectively performing a conditioning operation on the plurality of different signal components to produce a plurality of conditioned signal components minimally affected by interference signals from within any of the contiguous frequency channels; and a frequency multiplexer having a plurality of contiguous frequency channels for recombining the plurality of conditioned signal components into a composite conditioned signal of original bandwidth and at a safe power level with a minimum amount of interference. Preferably, the channelized protection circuit also includes a first plurality of phase-adjusting circuits for compensating for phase imbalances among the plurality of different signal components, and also includes a second plurality of phase-adjusting circuits for compensating for phase imbalances among the plurality of conditioned signal components.