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. 12, 2016
Filed:
Sep. 12, 2008
Steve Chen, Fremont, CA (US);
Michael G. Luby, Berkeley, CA (US);
Manu Prasad, Fremont, CA (US);
William Seed, Los Altos, CA (US);
Thomas Stockhammer, Bergen, DE;
Steve Chen, Fremont, CA (US);
Michael G. Luby, Berkeley, CA (US);
Manu Prasad, Fremont, CA (US);
William Seed, Los Altos, CA (US);
Thomas Stockhammer, Bergen, DE;
Digital Fountain, Inc., San Diego, CA (US);
Abstract
A method of generating Source Identification information from a source packet stream and reliably transmitting the Source Identification information from a source to a destination over a communications channel is provided. The method operates on a set of source packets, wherein Source Identification information for each source packet to be transmitted is derived and delivered with the Source Identification information of all or most other source packets of an associated source block. The method includes techniques to minimize the network bandwidth required to deliver Source Identification information and techniques to overcome network impairments. When combined with FEC techniques, retransmission techniques, or combinations of FEC techniques and retransmission techniques, the methods described herein allow receivers to recover lost source packets, while simultaneously ensuring that the original source packets are not modified and thereby ensuring backwards compatibility for legacy receivers.