Robotic catheter system with variable drive mechanism
US-2024090960-A1 · Mar 21, 2024 · US
Content distribution server and content playback control terminal
US9014541B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9014541-B2 |
| Application number | US-201113330174-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2011 |
| Priority date | Oct 27, 2003 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 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.
In the present invention, a content distribution server distributes a content key, encrypted content encrypted using the content key, and playback control information describing a playback mode restriction for a specific section of content, to a content playback terminal, and the content playback terminal refers to the playback control information, and decodes and plays back encrypted content in the case of a playback mode in which the specific section of content is not restricted. By this means, the playback mode of a specific section of content can be restricted based on playback control information.
First claim
Opening claim text (preview).
What is claimed is: 1. A content playback control method, comprising: storing in a memory, information describing: license information including a content key and a usage condition; special sections subject to a restriction of a special playback of content, the special sections being received separately from the license information; and a playback mode permitted in each of the special sections, the usage condition specifying whether a playback is performed with respect to t…
Assignees
Inventors
Classifications
- H04N21/83555Primary
Electricity · mapped topic
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 US9014541B2 cover?
- In the present invention, a content distribution server distributes a content key, encrypted content encrypted using the content key, and playback control information describing a playback mode restriction for a specific section of content, to a content playback terminal, and the content playback terminal refers to the playback control information, and decodes and plays back encrypted content i…
- Who is the assignee on this patent?
- Kawaguchi Toru, Saito Yutaka, Panasonic Ip Corp America
- What technology area does this patent fall under?
- Primary CPC classification H04N21/83555. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 21 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).