Decoding method and apparatus enabling fast channel change of compressed video
US-2015373355-A1 · Dec 24, 2015 · US
Fast channel change for hybrid device
US9219940B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9219940-B2 |
| Application number | US-201214113359-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 18, 2012 |
| Priority date | May 4, 2011 |
| Publication date | Dec 22, 2015 |
| Grant date | Dec 22, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
There is provided according to embodiments of the invention a method of changing channels in a hybrid multicast video distribution environment, which is carried out by receiving a plurality of multicast video streams concurrently in a server, buffering first segments of the video streams respectively, wherein the first segments comprise an independently decodable frame and zero or more predicted frames, encoding the first segments to form new segments having new frame quality parameters that are less than the frame quality parameters of the first segments, assembling the first segments and the new segments into respective channel packs of the video streams, and responsively to a request, identifying one of the video streams and transmitting at least a portion of the oldest stored channel pack of the one video stream from the server to a receiving device. Related apparatus and methods are also described.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of changing channels in a hybrid multicast video distribution environment, comprising the steps of: receiving, decoding and rendering a first multicast video stream on a display using a receiving device having a synchronization module; receiving an order for a channel change operation from the first multicast video stream to a second multicast video stream; responsively to the order and while receiving the second multicast video stream re…
Assignees
Inventors
Classifications
Electricity · mapped topic
- H04N21/4347Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9219940B2 cover?
- There is provided according to embodiments of the invention a method of changing channels in a hybrid multicast video distribution environment, which is carried out by receiving a plurality of multicast video streams concurrently in a server, buffering first segments of the video streams respectively, wherein the first segments comprise an independently decodable frame and zero or more predicte…
- Who is the assignee on this patent?
- Gaillard Etienne, Alliez Damien, Gaude Nicolas, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04N21/4347. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 22 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).