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. 20, 2018
Filed:
Jul. 18, 2016
Amazon Technologies, Inc., Seattle, WA (US);
Yajun Chen, Santa Clara, CA (US);
Peng Zhan, San Jose, CA (US);
Qingyuan Ma, Saratoga, CA (US);
Zhen Zhou, San Jose, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A transmission system that sends data to multiple devices simultaneously using multiple access points (APs). The system may send multicast data (e.g., original transmission of multicast data) to the multiple devices using a first AP and may send recovery data (e.g., retransmission of portions of the multicast data) to individual devices using a second AP. As the second AP handles requests for the recovery data and sends the recovery data, the first AP may send the multicast data using all available bandwidth and an efficiency of transmission does not depend on the number of devices connected to the first AP. The recovery data may be determined based on an original manifest of the multicast data, such as a bitmap or other representation, and the device may generate a recovery manifest indicating the recovery data and send the recovery manifest to the second AP.