Prior art

Here is an analysis of the most relevant prior art for US Patent 9762639, "Dynamic manifest generation based on client identity," based on the patent's own citations. The primary innovation of US9762639 relates to generating a manifest file that includes offset information for distinct media segments (e.g., advertisements) based on the timing of a live media stream, to ensure continuous timestamps during transitions for a client. The patent also describes optional inclusion of discontinuity tags based on client type.

The independent claims of US9762639 (Claims 1, 7, and 13, representing a method, a server, and a computer-readable medium, respectively) fundamentally cover:

• Receiving a live media content stream.
• Obtaining timing information for this stream.
• Receiving a request to stream the live content.
• Creating a manifest file that includes:
  • Information for streaming live media segments.
  • Information for streaming distinct media file segments (e.g., ads).
  • Offset information for the distinct media file segments, based on the timing information of the live media stream.
• Sending the manifest file.

The most relevant prior art are those documents that significantly overlap with these features, especially those related to dynamic manifest generation, mixing live and on-demand content, and addressing timing synchronization.

Here are the patent citations identified from the text of US9762639, along with their details and potential for anticipation:

Most Relevant Prior Art for US9762639

1. U.S. Pat. No. 9,197,688 B2

   • Full Citation: US 9,197,688 B2, titled "Dynamic chunk manipulation for streaming mixed live and on-demand media: application programming interface," issued November 24, 2015.
   • Publication/Filing Date: Application filed November 21, 2013 (U.S. patent application Ser. No. 14/086,801). Patent issued November 24, 2015.
   • Brief Description: This patent describes methods and systems for dynamically manipulating chunks of media for streaming mixed live and on-demand content, specifically through the use of an application programming interface (API). US9762639 explicitly states it is a continuation of the application that led to this patent (Ser. No. 14/086,801).
   • Potential Anticipation (35 U.S.C. § 102): Given its direct ancestral relationship and title, US9197688B2 is highly likely to anticipate the core elements of US9762639. If US9197688B2 discloses the creation of manifest files containing information for both live and on-demand content, and critically, a mechanism (potentially through its API) to include or derive "offset information" within the manifest to ensure continuous timestamps during transitions between these content types, it could potentially anticipate independent claims 1, 7, and 13 of US9762639. It might also anticipate dependent claims related to the API (claims 2, 8, 14) and potentially discontinuity indications if discussed in the context of seamless transitions.

2. U.S. Pat. No. 9,332,047 B2

   • Full Citation: US 9,332,047 B2, titled "Dynamic chunk manipulation for streaming mixed live and on-demand media: dynamic permutation layer," issued May 3, 2016.
   • Publication/Filing Date: Application filed November 21, 2013 (U.S. patent application Ser. No. 14/086,822). Patent issued May 3, 2016.
   • Brief Description: This patent focuses on the dynamic permutation layer (DPL) and its role in manipulating chunks for streaming mixed live and on-demand media. US9762639 describes the DPL as capable of dynamically creating requested chunks and rewriting timestamps based on offset information received, for example, via URLs in the client manifest.
   • Potential Anticipation (35 U.S.C. § 102): This patent is extremely relevant due to its focus on the DPL and "dynamic chunk manipulation for streaming mixed live and on-demand media." If US9332047B2 describes the DPL receiving instructions (e.g., from an API or manifest) that include offset information to rewrite timestamps for continuous playback when combining live and on-demand content, it could directly anticipate independent claims 1, 7, and 13 of US9762639. Specifically, if it covers the interplay between manifest generation and the DPL's timestamp rewriting function, it would be highly anticipatory.

3. U.S. Patent Application Publication No. US 2014/0122650 A1

   • Full Citation: US 2014/0122650 A1, titled "Live advertising processing engine service," published May 1, 2014.
   • Publication/Filing Date: Application filed November 1, 2013 (U.S. patent application Ser. No. 14/069,961). Publication date May 1, 2014.
   • Brief Description: This application details a "Live Advertising Processing Engine Service (APES)" that provides advanced functionality for advertising during the consumption of live content. US9762639 states that its techniques can be found in conjunction with this application.
   • Potential Anticipation (35 U.S.C. § 102): Given its explicit focus on "Live Advertising Processing," US20140122650A1 is highly likely to address the problem of integrating advertisements (on-demand content) into live streams. If this publication describes the detection of ad breaks in live content, the selection and preparation of ad content, and particularly, mechanisms to handle timestamp discrepancies or ensure continuous playback when inserting ads into live streams, it could strongly anticipate independent claims 1, 7, and 13. Any disclosure of generating manifest files that include both live and ad content with timing adjustments would be highly relevant. Claims related to receiving ad indications (claims 6, 12, 18) are also likely anticipated.

4. U.S. Pat. No. 8,145,782 B2

   • Full Citation: US 8,145,782 B2, titled "Dynamic chunking for media streaming," issued March 27, 2012.
   • Publication/Filing Date: Application filed December 22, 2010 (U.S. patent application Ser. No. 12/976,883). Patent issued March 27, 2012. It claims priority to Australian Patent Application Serial No. 2010202741, filed June 30, 2010.
   • Brief Description: This patent outlines techniques for "Dynamic Chunking For Media Streaming," including processing media files or live streams into smaller chunks for storage and serving to a client. It is a foundational patent mentioned for dynamic chunking and indexing. US9762639 shares its earliest priority date (June 30, 2010, via AU2010202741).
   • Potential Anticipation (35 U.S.C. § 102): As a foundational patent in the dynamic chunking family and sharing the earliest priority date, US8145782B2 is crucial. If it discloses how manifest files are created to facilitate streaming of dynamically chunked media, and particularly if it discusses the challenge of combining different media sources (e.g., live and on-demand) and any mechanisms to maintain continuous timing information or prevent playback errors during transitions, it could potentially anticipate independent claims 1, 7, and 13. The extent of anticipation depends on whether it explicitly teaches the inclusion of "offset information" in the manifest to resolve timestamp mismatches.

5. U.S. Pat. No. 8,301,733 B2

   • Full Citation: US 8,301,733 B2, titled "Dynamic chunking for delivery instances," issued October 30, 2012.
   • Publication/Filing Date: Application filed March 26, 2012 (U.S. patent application Ser. No. 13/430,081). Patent issued October 30, 2012.
   • Brief Description: This patent also concerns "Dynamic chunking for delivery instances" and is referenced in US9762639 for additional details regarding the functionality of the CHIMPS 110 (Cloud-Hosted Integrated Multi-Node Pipelining System).
   • Potential Anticipation (35 U.S.C. § 102): US8301733B2 builds upon dynamic chunking concepts. If it details methods for preparing and delivering media chunks from different sources in a way that requires managing timing information for seamless delivery instances, it could broadly anticipate the "creating a manifest file" step and the need for continuity. However, its anticipation of the specific "offset information for streaming... based on the timing information of the stream of data" in a manifest for distinct media types, which is central to US9762639, would depend on the specificity of its disclosure regarding explicit timestamp adjustment mechanisms.

6. U.S. Pat. No. 8,327,013 B2

   • Full Citation: US 8,327,013 B2, titled "Dynamic index file creation for media streaming," issued December 4, 2012.
   • Publication/Filing Date: Application filed May 26, 2011 (U.S. patent application Ser. No. 13/116,423). Patent issued December 4, 2012.
   • Brief Description: This patent focuses on "Dynamic Index File Creation for Media Streaming" and is cited in US9762639 for providing additional detail on chunking and indexing, and dynamically creating chunks and manifest files.
   • Potential Anticipation (35 U.S.C. § 102): US8327013B2's focus on "dynamic index file creation" directly relates to the "creating... a manifest file" step in US9762639. If this patent describes generating manifest files that accommodate segments from different media sources (e.g., live and on-demand) and includes any form of metadata or instructions within the manifest to handle timing synchronization or continuity across these transitions, it could potentially anticipate independent claims 1, 7, and 13 of US9762639. The key would be the level of detail regarding explicit "offset information" for timestamp rewriting.

7. Australian Patent Application Serial No. 2010202741 A1

   • Full Citation: AU 2010202741 A1, titled "Dynamic chunking for media streaming," published July 22, 2010.
   • Publication/Filing Date: Application filed June 30, 2010. Publication date July 22, 2010.
   • Brief Description: This is the earliest priority document for the patent family, filed June 30, 2010, which US9762639 also claims priority from. Its title is "Dynamic chunking for media streaming."
   • Potential Anticipation (35 U.S.C. § 102): As the earliest priority document, AU2010202741A1 serves as critical prior art for any new matter introduced in US9762639. If this application fully discloses the concepts of dynamic chunking for media streaming, the generation of manifest files, and particularly, the specific solution of using "offset information" within the manifest to reconcile timestamps between different media sources (like live content and inserted on-demand content) to ensure continuity, it would directly anticipate independent claims 1, 7, and 13 of US9762639.

Other Cited Prior Art

These documents are also cited within US9762639 and contribute to the overall technical landscape, but may be less directly anticipatory of the specific timestamp rewriting aspect than those listed above:

1. U.S. Pat. No. 8,645,504 B2

   • Full Citation: US 8,645,504 B2, titled "Dynamic chunking for delivery instances," issued February 4, 2014.
   • Publication/Filing Date: Application filed September 21, 2012 (U.S. patent application Ser. No. 13/624,029). Patent issued February 4, 2014.
   • Brief Description: Deals with dynamic chunking for various delivery instances. US9762639 is a continuation-in-part of an application in this lineage.
   • Potential Anticipation (35 U.S.C. § 102): While covering dynamic chunking, its focus might be broader than the specific timestamp rewriting in manifests for mixed content. It could anticipate generic manifest generation but is less likely to anticipate the specific offset information for timestamp continuity without more detailed disclosures.

2. U.S. Patent Application Publication No. US 2016/0100236 A1

   • Full Citation: US 2016/0100236 A1, titled "Dynamic Chunk Manipulation for Streaming Mixed Media: Application Programming Interface," published April 7, 2016.
   • Publication/Filing Date: Application filed October 20, 2015 (U.S. patent application Ser. No. 14/918,368). Publication date April 7, 2016.
   • Brief Description: A continuation-in-part of the application for US9197688B2, further elaborating on the API's role in dynamic chunk manipulation for mixed media.
   • Potential Anticipation (35 U.S.C. § 102): Published before US9762639 but after its earliest priority date. It would be prior art for any new matter in US9762639 not covered by earlier priority. As a continuation-in-part, it's likely to build upon and further detail the API aspects of mixed media streaming, potentially including how timing is managed for seamless transitions, which could anticipate various claims of US9762639.

3. U.S. Patent Application Publication No. US 2013/0080268 A1

   • Full Citation: US 2013/0080268 A1, titled "Multi-platform media syndication customization," published March 28, 2013.
   • Publication/Filing Date: Application filed December 29, 2011 (U.S. patent application Ser. No. 13/339,680). Publication date March 28, 2013.
   • Brief Description: Focuses on customizing media syndication across multiple platforms.
   • Potential Anticipation (35 U.S.C. § 102): While relevant to media distribution, its general focus on "customization" and "multi-platform syndication" makes it less likely to directly anticipate the specific technical solution of timestamp rewriting using offset information in a manifest for continuity between live and distinct on-demand content.

4. U.S. Patent Application Publication No. US 2013/0080267 A1

   • Full Citation: US 2013/0080267 A1, titled "Single-URL content delivery," published March 28, 2013.
   • Publication/Filing Date: Application filed September 26, 2011 (U.S. patent application Ser. No. 13/245,372). Publication date March 28, 2013.
   • Brief Description: Describes methods for delivering various media content, possibly dynamically, through a single URL.
   • Potential Anticipation (35 U.S.C. § 102): Its focus is on content access via a single URL. While it may involve manifest files for dynamic content, it is less likely to specifically detail the timestamp offset logic in the manifest for seamless transitions between live and distinct on-demand content as claimed in US9762639.

5. U.S. Patent Application Publication No. US 2013/0246663 A1

   • Full Citation: US 2013/0246663 A1, titled "Dynamic chunking for delivery instances," published September 19, 2013.
   • Publication/Filing Date: Application filed March 8, 2013 (U.S. patent application Ser. No. 13/791,789). Publication date September 19, 2013.
   • Brief Description: A continuation-in-part of earlier dynamic chunking patents, further developing concepts for delivery instances.
   • Potential Anticipation (35 U.S.C. § 102): Similar to its parent patents, this application would cover aspects of dynamic chunking. Its potential to anticipate US9762639 would lie in any specific disclosures regarding the handling of timing information for mixed content sources within delivery instances, rather than general chunking strategies.

It is important to note that the actual anticipatory effect of any of these prior art documents would require a detailed claim-by-claim comparison against the full disclosure of each prior art document. The analysis above is based on the titles, descriptions within US9762639, and general understanding of their fields.