Posts filed under 'HD VoIP'
[This post is part of our Designing Hardware for HD series. Be sure to check it out!] [Fabrizio Ghetti, who wrote a very useful post on camera shopping tips had more tips for you about cameras, so here's another post - this time, camera positioning. As you'll be able to see, I assisted with the images.] So you’ve selected a camera. Great! Now it’s time to decide where to position it. This decision should not be taken lightly –
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By guest | March 10th, 2010 | Filed under HD VoIP
[We're still in the cameras part of our Designing Hardware for HD series. Be sure to check it out!] [This time, I've asked Fabrizio Ghetti, Video System Engineer in our Italian R&D center, to provide a short list of requirements to look for when shopping around for endpoint cameras.] When you go out to shop for a camera for your hardware endpoint design, you will be looking at a lot of brochures showing different specifications. Even if
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By guest | March 3rd, 2010 | Filed under HD VoIP
[This post is taking part in our Designing Hardware for HD series. Be sure to check it out!] Now that we’re past the camera glossary part, it’s time to take a look at what is required from a good camera for visual communications. I’ll start by saying that, as a rule of thumb, desktop video conferencing cameras are usually USB webcams and professional video conferencing systems have professional HD cameras. These are two separate types of cameras, using two
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By Tsahi Levent-Levi | February 15th, 2010 | Filed under HD VoIP
[This post is part of our Designing Hardware for HD series. Be sure to check it out!] There are still a few things that I haven’t touched here, in this HW for HD series. One of them is the camera. In the next few weeks I’ll try to cover some grounds in this area. But before I dive in to the issues at hand, I’d like to get you up-to-date with the basics. This glossary that I supply here will
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By Tsahi Levent-Levi | February 1st, 2010 | Filed under HD VoIP
[This post is part of our Designing Hardware for HD series. Be sure to check it out!] In my previous post I’ve discussed on the requirements from an OSD engine. These requirements will affect the decision making of chip selection for the OSD. But there is another aspect that affects that decision and it is the software you will use for visualization – the OSD engine. While I do not pretend to be an expert on GUI, I have
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By Tsahi Levent-Levi | January 25th, 2010 | Filed under HD VoIP
[This post is part of our Designing Hardware for HD series. Be sure to check it out!] Time to talk about OSD. That is the On Screen Display (OSD). This is what users will see besides the actual video streams, the Graphical User Interface (GUI), so there’s a lot of reasons to spend some time around it. It is also something that causes a lot of headaches for hardware designers, especially in the seamless, iPhone-inspired era of interfaces we live
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By Tsahi Levent-Levi | January 18th, 2010 | Filed under HD VoIP
[This post is part of our Designing Hardware for HD series. Be sure to check it out!] If you are in the process of designing a videophone, one of your considerations is going to be the user experience. In most cases, you will need to consider two different user scenarios: A user who uses the system for visual communication An IT guy who is taking care of the system Each of these users has his own set
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By Tsahi Levent-Levi | January 11th, 2010 | Filed under HD VoIP
[This post is part of our Designing Hardware for HD series. Be sure to check it out!] I already delved into the issue of the host in an HD video product design, where I also made a point of the fact that a hardware design for HD video is going to require several chips – one just isn’t capable of doing everything today. This means that there will be interaction between these chips, and this is not an issue you
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By Tsahi Levent-Levi | January 4th, 2010 | Filed under HD VoIP
[This post is part of our Designing Hardware for HD series. Be sure to check it out!] It’s about time we deal with interfaces. Not the video ins and outs – I have already touched on that one. This time I want to discuss the interfaces that usually connect to a videophone product – and trust me, there are a bunch of options here. Yes, I’m talking peripherals here – those pesky things your end-users will end up connecting to
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By Tsahi Levent-Levi | December 28th, 2009 | Filed under HD VoIP
[This post is part of our Designing Hardware for HD series. Be sure to check it out!] I’d like to take a bit of a break from all those hardware posts in my “HW for HD” series, now that I’ve covered the video coding chip, as well as scaling and layout issues. Instead I want to delve into the realm of designing the software architecture of the application itself. The hardware you design will affect your software architecture. As you
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By Tsahi Levent-Levi | December 21st, 2009 | Filed under HD VoIP
