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:
Aug. 15, 2023
Filed:
Oct. 12, 2021
Applicant:
Comcast Cable Communications, Llc, Philadelphia, PA (US);
Inventors:
Brian Field, Evergreen, CO (US);
Jan Van Doorn, Castle Rock, CO (US);
Jim Hall, Centennial, CO (US);
Assignee:
Comcast Cable Communications, LLC, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 67/563 (2022.01); H04L 67/288 (2022.01); H04L 67/63 (2022.01); H04L 67/568 (2022.01);
U.S. Cl.
CPC ...
H04L 67/563 (2022.05); H04L 67/288 (2013.01); H04L 67/568 (2022.05); H04L 67/63 (2022.05);
Abstract
An announcement protocol may allow disparate, and previously incompatible, content delivery network caches to exchange information and cache content for one another. Announcement data may be stored by the respective caches, and used to determine whether a cache is able to service an incoming request. URL prefixes may be included in the announcements to identify the content, and longest-match lookups may be used to help determine a secondary option when a first cache determines that it lacks a requested content.