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:
Oct. 04, 1994
Filed:
Jul. 20, 1993
Howard L Lester, Alplaus, NY (US);
Sandeep Chennakeshu, Cary, NC (US);
General Electric Company, Schenectady, NY (US);
Abstract
A digital simulcast transmission is automatically aligned, at a simulcast receiver (22) that simultaneously receives a plurality of RF signals from a plurality of transmitters, each of the RF signals being modulated to convey identical digitally encoded information. An equalizer (24) adaptively equalizes the plurality of received RF signals to substantially correct for a misalignment in time between the received signals. The misalignment in time is due in part to a non-simultaneous transmission of the identical digitally encoded information from the plurality of transmitters. Equalizer embodiments include a Decision Feedback Equalizer (DFE) and an equalizer based on a Maximum Likelihood Sequence Estimator (MLSE). Embodiments of the DFE are an Order Recursive Lattice-DFE and a Fast Kalman DFE.