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. 27, 2006
Filed:
Nov. 16, 2001
Mark Kintis, Manhattan Beach, CA (US);
Robert R. Harnden, Redondo Beach, CA (US);
Kenneth B. Weber, Redondo Beach, CA (US);
Mark V. Keller, Palos Verdes Estates, CA (US);
Donald L. Lochhead, San Diego, CA (US);
Donald R. Martin, Redondo Beach, CA (US);
Mark Kintis, Manhattan Beach, CA (US);
Robert R. Harnden, Redondo Beach, CA (US);
Kenneth B. Weber, Redondo Beach, CA (US);
Mark V. Keller, Palos Verdes Estates, CA (US);
Donald L. Lochhead, San Diego, CA (US);
Donald R. Martin, Redondo Beach, CA (US);
Northrop Gruman Corporation, Los Angeles, CA (US);
Abstract
A multi-carrier receiver system and method for receiving a transmission frequency multi-carrier signal include a feedforward cancellation loop. A frequency conversion circuit generates an intermediate frequency (IF) multi-carrier signal based on the transmission frequency multi-carrier signal. The feedforward cancellation loop generates an amplitude corrected multi-carrier signal based on the IF multi-carrier signal such that the amplitude corrected multi-carrier signal has a reduced dynamic range with respect to the IF multi-carrier signal. A primary A/D converter having a significantly lower dynamic range requirements can therefore generate a digital multi-carrier signal based on the amplitude corrected multi-carrier signal. The feedforward cancellation loop therefore enables the primary A/D converter to process multi-carrier signals without the need for large dynamic range requirements.