Do the BBC have patents in Dirac?
Frequently asked questionsNo. We did have patent applications in train which included some of the techniques involved in Dirac, but we let those parts that related to Dirac lapse. If we had allowed them to continue, users of the Dirac code would still have been covered in perpetuity by the licence: by letting them lapse, the BBC has no IPR interest in any implementation of Dirac by anyone, based on the Dirac software or not.
Related QuestionsIs the BBC going to stream video using Dirac?
Frequently asked questionsA good question. Now we are close to a version 1.0, the BBC has the opportunity to adopt Dirac for operational use. We have real-time decoding, integration with players, a bytestream spec and a choice of transport stream formats. What we need to deliver next is hardware or software which can be used live for encoding - without that, there is a problem delivering streaming video at the volumes that the BBC would expect. The Schrodinger project will help us achieve that.
Related QuestionsWhere can I get Dirac?
Frequently asked questionsYou can download the latest version from the Sourceforge project page. You can also look at the developing code on the CVS there.
Related QuestionsWhy is it called Dirac?
Frequently asked questionsDirac is named after the British physicist (of Swiss extraction) Paul Dirac, who was one of the great figures in modern physics. We've seen some good explanations on the 'net, suggesting that we chose the name because the Dirac delta function is fundamental to signal processing and that Dirac's work underpins wavelets. Sorry, but the stories aren't true. We thought of hundreds of names, most of them awful, some of them good, but most of the good ones had been used already. Tim suggested Dirac.
Related QuestionsHow did Dirac begin?
Frequently asked questionsThomas began experimenting with compression techniques in about 2001. The ideas were originally developed as part of an idea to deliver high definition services as a layered addition to conventional MPEG-2 broadcasts. As with most similar proposals, he did not manage to achieve any real benefit from linking the standard definition and high definition coding, but the algorithm he used was pretty efficient in isolation. It was the foundation of Dirac.
Related QuestionsAre you going to charge for Dirac?
Frequently asked questionsNo. The terms of the MPL mean that as far as the BBC is concerned, there will be no charges or royalties for the Dirac software.
Related QuestionsWhat is the BBC?
KHSU-FM 90.5 Arcata,CA | Station FAQThe British Broadcasting Corporation. KHSU airs BBC World Service , the BBC's worldwide news service, broadcast from London in 43 languages, and distributed in the U.S. by PRI.
Related QuestionsWhat patents are there?
Elliptic curve cryptography FAQ v1.12 22nd December 1997There are various patents concerning normal basis. US patents 4587627 Omura-Massey (OMNET), 739220 Onyszchuk/Mullin/Vanstone. Richard Crandall of Next computers has patents concerning GF(p), where p is of the form 2^q - C for small C. US Patents 5463690,5271051,5159632 US Patent 5146500 Maura (Omnisec) concerns "elliptic curves over rings" (sic). I haven't any idea what this means, but it seems to only use integer arithmetic modulo a prime.
Related QuestionsBuchanan Law & FAQA patent is a registered form of IP right available for particularly novel and inventive products, methods or processes. If your business involves the development, manufacture or use of novel products, processes and solutions then patents will represent a critical component of your effective IP strategy.Related Questions
Intellectual Property Department - FAQPatents protect inventions, that is products, substances, or processes which are new and inventive. Patent owners have the right to prevent others from manufacturing, using, selling, or importing the invention. Protection under short-term patents is renewable, after four years from filing, for a maximum term of eight years.Related Questions
Why are you releasing Dirac Open Source?
Frequently asked questionsThe BBC has always advocated open standards, and has tried to use them where possible. So far, streaming has been dominated by proprietary systems and existing licensing regimes for standards-based systems have not been as attractive as they might be for large-scale broadcasting, particularly for Public Service broadcasters.
Related QuestionsWhat is BBC AMERICA?
BBC America - Frequently Asked QuestionsBBC AMERICA is a digital cable and satellite channel dedicated to bringing audiences a new generation of award-winning television featuring razor-sharp comedies, provocative dramas, life changing makeovers and news with a uniquely global perspective. BBC AMERICA's programming pushes the boundaries to deliver high quality, highly addictive and eminently watchable programming to viewers who demand more.
Related QuestionsWhat about copyrights, usage and patents?
OpenSSH FAQThe OpenSSH developers have tried very hard to keep OpenSSH free of any patent or copyright problems. To do this, some options had to be stripped from OpenSSH. Namely support for patented algorithms. OpenSSH does not support any patented transport algorithms. In SSH1 mode, only 3DES and Blowfish are available options. In SSH2 mode, only 3DES, Blowfish, CAST128, Arcfour and AES can be selected. The patented IDEA algorithm is not supported.
Related QuestionsDo you infringe any patents?
Frequently asked questionsWe haven't employed armies of lawyers to trawl through the tens of thousands of video compression techniques. That's not the way to invent a successful algorithm. Instead we've tried to use techniques of long standing in novel ways. There are some areas that are more heavily patented than others. Arithmetic coding is one such, even though the technique itself has been around for 30 years. We're keeping an eye on the situation, and we'll adopt alternative techniques if we have to.
Related QuestionsWhat is the main difference between patents and trademarks?
Before getting into the details of patents, trademarks and copyrights, a brief explanation of the basic differences is needed. If you don't work with each of them on a day to day basis, it easy to become confused., as you should be. There is a definite a blurring of the edges between the rights to each of them. In fact, it is possible to simultaneously obtain rights under patent, trademark and copyright laws for the same product.
Related QuestionsAre there different types of patents?
First Stop Business Center - Frequently Asked QuestionsThere are three types of patents. Utility Patents may be granted to anyone who invents or discovers any new and useful process, machine, article of manufacture, or compositions of matters, or any new useful improvement thereof. Design Patents may be granted to anyone who invents a new, original, and ornamental design for an article of manufacture. Plant Patents may be granted to anyone who invents or discovers and asexually reproduces any distinct and new variety of plants.
Related QuestionsAre you going to broadcast TV using Dirac?
Frequently asked questionsBroadcasting or multicasting over the web is likely to develop over the next few years, and the technology we use for this is likely to be the same as for standard streaming. There is no likelihood at all of replacing our existing Digital TV infrastructure, based on European DVB standards and using MPEG-2, with anything new - the installed base of millions of customers is too large.
Related QuestionsAre BBC Four programmes repeated on BBC One or Two?
BBC - BBC Four - FAQSome BBC Four programmes are repeated on BBC One and Two. At present BBC Two often shows BBC Four programmes after Newsnight.
Related QuestionsWhat is BBC AMERICA On Demand?
BBC America - Frequently Asked QuestionsBBC AMERICA On Demand is a fantastic way to enjoy BBC AMERICA's award-winning programming at your convenience. It allows you to view shows again and again with the ease of full VCR functionality. BBC America's On Demand schedule can be found here
Related QuestionsWhat is this 'BBC protocol'?
BBC R&D - MOT - FAQThe 'BBC protocol' is a simple protocol that is used to frame data groups as they are passed between the spooler and the cache manager (possibly via a DAB signal chain). It is extremely simple and provides no error detection as it is intended to be used over TCP/IP where reliable delivery of data may be assumed. We didn't spend hours agonising over every last detail but it's perfectly functional for what it is required to do.
Related QuestionsWhat's a BBC article?
BBC - Action Network - Frequently asked questionsAcross Action Network you will see articles with the words 'This page was created by the BBC' underneath the title. These pieces have been written by a member of the Action Network team. The BBC provides an open platform for local campaigns but does not endorse or support any of the content submitted by users.
Related QuestionsWhat are BBC's strengths?
BBC : Frequently Asked Questionswe offer an all round education: a broad based curriculum designed to achieve the goal of educating the "whole" person and to encourage boys to reach their full potential in all areas.
Related QuestionsIs the BBC part of the U.S. Government?
FAQsNo. The Iraq Business Centers Alliance is an independent organization, having applied for registration as an Iraqi NGO. The BBC had its origin under the former CPA, but it is an Iraqi organization. No, the BBC's only goal is to promote Iraqi businesses and the Iraqi economy generally. The BBC does help Iraqi firms find opportunities provided by foreign corporations and governments. It does not promote the interest of certain foreign countries above others.
Related QuestionsWhere can I find out about jobs with the BBC?
BBC - Birmingham Features - Pebble Mill move FAQ'sPlease log on to www.bbc.co.uk/jobs for details of the BBC's current vacancies. There are several booklets about working in different areas of the BBC available to take away from the public space at the Mailbox.
Related QuestionsIs the plan for BBC the same as UP?
FIU OEM HOME PAGEBasically the same plan except that Biscayne Bay is evacuated before the storm. Students are transported to UP prior to the event. All preparation and check list are the same. Biscayne Bay resident students are evacuated to University Park if a mandatory evacuation is issued for that area.
Related QuestionsHow can I watch BBC Four?
BBC - BBC Four - FAQWe broadcast from 7pm every evening on Freeview channel 9, Sky Digital channel 116, Telewest channel 107 and NTL channel 127.
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