PATENT CLAIM ANALYSIS

Application Number: 15899653
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["709", "219000"]

Abstract:
Some embodiments provide intelligent predictive stream caching for live, linear, or video-on-demand streaming content using prefetching, segmented caching, and request clustering. Prefetching involves retrieving streaming content segments from an origin server prior to the segments being requested by users. Prefetching live or linear streaming content segments involves continually reissuing requests to the origin until the segments are obtained or a preset retry duration is completed. Prefetching is initiated in response to a first request for a segment falling within a particular interval. Request clustering commences thereafter. Subsequent requests are queued until the segments are retrieved. Segmented caching involves caching segments for one particular interval. Segments falling within a next interval are not prefetched until a first request for one such segment in the next interval is received. Cached segments from the previous interval can be replaced in cache with segments for the current interval, thereby minimizing cache footprint utilization.

Claim (Index 13):
A method for prefetching stream segments, the method comprising:\n receiving a client request for a first segment of streaming content at a first streaming server; submitting a set of requests from the first streaming server to an origin server at which the streaming content is published, wherein the set of requests comprises a first request for the first segment and a second prefetch request for a second segment of the streaming content prior to receiving a client request for the second segment; notifying at least a second streaming server by the first streaming server of said submitting of the set of requests by the first streaming server; receiving a client request for the second segment at the second streaming server; queuing the client request for the second segment at the second streaming server based on said notifying by the first streaming server; distributing at least the second segment from the first streaming server to the second streaming server upon receipt of the second segment from the origin server and in response to said notifying; and responding to the client request for the second segment from the second streaming server in response to said distributing.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 88.0
- Lexical Diversity: 1.94048
- Patent Class: 709.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14831578', '15392268', '14996930', '15614067', '14547052']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2497387692584841
- 35 USC 102 Novelty (BERT): 0.5184145653031353
- Combined Prediction Score: 0.2766063488629492
- Mean Citation Score: 231.38554600000003
- Max Citation Score: 322.2326
- Similarity Product: 254.2786011231184

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test