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:
Jan. 16, 2001
Filed:
Jul. 15, 1997
Rudiger L. Urbanke, New York, NY (US);
Aaron Daniel Wyner, South Orange, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A system for transmitting data over an erasure channel. A data block is divided into coarse and fine segments. The coarse segment is encoded using an error-correcting encoding process. The fine segment and the encoded coarse segment are combined and divided into packets, and the packets are transmitted over the erasure channel. When the data is received, the coarse segment is decoded. If data packets were lost during transmission, the coarse segment is reconstructed as the received data block. If no packets were lost, the fine segment is combined with the coarse segment and the entire data block as originally transmitted is reconstructed. For large numbers of packets, the system invention can achieve any point within the capacity region of an erasure channel.