Amazon patents granted on 27 October 2015

19 US patents granted on 27 October 2015 and assigned to Amazon

1 9,172,791 Noise estimation algorithm for non-stationary environments
2 9,172,674 Managing request routing information utilizing performance information
3 9,172,640 Frameworks and interfaces for offload device-based packet processing
4 9,172,621 Unified account metadata management
5 9,172,599 Fault tolerant folded Clos networks
6 9,172,532 Multi-tiered encryption system for efficiently regulating use of encryption keys
7 9,171,552 Multiple range dynamic level control
8 9,171,301 Location aware transaction authorization
9 9,171,278 Item illumination based on image recognition
10 9,171,265 Crowdsourcing for documents that include specified criteria
11 9,171,195 Recognizing three-dimensional objects
12 9,171,164 Establishing trust using side channels
13 9,171,019 Distributed lock service with external lock information database
14 9,170,915 Replay to reconstruct program state
15 9,170,891 Predictive upload of snapshot data
16 9,170,821 Automating workflow validation
17 9,170,795 Digital item ingestion process
18 9,170,712 Presenting content related to current media consumption
19 9,170,318 Inter-device location determinations