Computer security is always a hot topic, but what do we mean by security and why do systems seem to be ever vulnerable. Comparing hardware to software helps understand vulnerabilities in software security.
As in all systems where there are opposed ideologies, there is a kind of cold war in which advances on one side need to be balanced by advances on the other. In encryption, the availability of increased computing power at low cost made it easier to break codes, but it…
Once upon a time, the cause of data corruption would be accidental. A dropout on a tape or interference picked up on a cable would damage a few bits. Error correction was designed to deal with that.
The arrival of 5G brings both opportunities and challenges to communications, media and entertainment companies, as well as the original equipment manufacturers (OEMs) working to support them.
The requirements for data transmission have changed out of all recognition since the early days of computing where the goal was simply to make something that worked. Today that’s the easy part.
The explosion in digital technology that led to Compact Discs, DVD, personal computers, digital cameras, the Internet and digital television broadcasting relies heavily on a small number of enabling technologies, one of which is the use of Reed-Solomon error correcting codes.
The first burst error correcting code was the Fire Code, which was once widely used on hard disk drives. Here we look at how it works and how it was used.
The CRC (cyclic redundancy check) was primarily an error detector, but it did allow some early error correction systems to be implemented.
There are many different CRCs but they all work in much the same way, which is that the data to be protected are divided by the CRC polynomial.…
The way consumers engage with content is constantly shifting and at a faster pace than ever before, leaving the television industry playing catch up. Broadcasters, production companies and content producers around the globe are seeing the complexities in production and distribution soaring, increasing costs with lower revenue per asset. At…
The changes in workflows with increased remote production will be sustained as vaccines help ease the COVID-19 coronavirus pandemic during 2021 but with some change back towards traditional workplace interaction.
The industry experienced futureshock head-on in 2020. The impact will take a long time to unwind but it’s already clear that some changes will be profound and not all of them bad. In part 2 we look at what sports and sportscasters need to do to change the live experience to m…
If we could have a “Year of the Engineer”, then I am firmly of the opinion that 2020 would be it. Lockdown has demonstrated unprecedented imagination, ingenuity and tenacity, especially for our engineering community.
