Our blog focuses on sharing our experience and knowledge across a wide range of technologies and industries including hardware and software design, audio, video, internet of things, mobile application and signal processing technologies.

WebOS List Formatters

Here at Cardinal Peak, we’ve been doing quite a bit of development on webOS, Palm’s new operating system for smartphones. WebOS is based on Linux, and it relies heavily on web standards like HTML, CSS, and JavaScript. It’s a great programming environment, but since it’s also rather new, there’s a lot of tribal knowledge still…

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Howdy Pierce

The Importance of Encrypting Video Over IP

I just read a report of a new IP security vulnerability being demonstrated today at the DefCon hacker’s conference in Las Vegas. The new hack has two components:

1. The attackers are able to view video being streamed across a network, and
2. The attackers are able to use a man-in-the-middle attack to insert video controlled by the attacker to a video decoder somewhere on the network.

The linked video shows viscerally how an attacker could foil a security/surveillance video system – a modern-day Thomas Crown Affair.

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Mike Perkins

Power Measurements With the DFT

Many of the systems we work on here at Cardinal Peak employ analog-to-digital conversion in one form or another. It seems like almost invariably some analog signal needs to be digitized or “sampled.” Sampling is the process of periodically looking at an analog signal at some sample rate, and then converting each measured value into…

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