Mike Perkins
Blog Post
Signal Processing

Delta Sigma Converters: Filtering, Decimation and Simulations

In my first post on ΔΣ converters I presented an intuitive way to derive the modulator portion of the converter. Now we need to look at what comes after the modulator — namely, the digital filter and the decimator. The high-level structure of the converter looks like this: The analog input voltage, v(t), is assumed... View Article
Cardinal Peak
Blog Post
Security

How To Find a Memory Leak

Finding memory leaks and other problems in your code can be challenging, but there are tools available to help simplify that process. Remember to add time to your schedule so that you can apply the available tools for finding memory leaks and other problems.
Mike Perkins
Blog Post
Signal Processing

Delta Sigma Converters: Modulation

Discover the essence of Delta Sigma modulation with clear insights and a practical approach. Learn how to implement and understand this vital technology intuitively.
In my first post on ΔΣ converters I presented an intuitive way to derive the modulator portion of the converter. Now we need to look at what comes after the modulator — namely, the digital filter and the decimator. The high-level structure of the converter looks like this: The analog input voltage, v(t), is assumed... View Article
Finding memory leaks and other problems in your code can be challenging, but there are tools available to help simplify that process. Remember to add time to your schedule so that you can apply the available tools for finding memory leaks and other problems.
Discover the essence of Delta Sigma modulation with clear insights and a practical approach. Learn how to implement and understand this vital technology intuitively.
Cardinal Peak
Blog Post
Software Development

Ben’s Golden Rule for Preventing Memory Leaks

Learn how to prevent memory leaks in C/C++ with Ben's Golden Rule. Follow these steps for effective memory management and ensure your embedded systems run smoothly!
Howdy Pierce
Blog Post
Outsourced Engineering

The Cost of an Engineer-Hour

As all good project managers know, there are three dimensions to any engineering effort: The features of the product: What does the product do and how does it look? (For sake of simplicity, let’s include “quality” as a product feature.) The schedule on which the product is produced: How fast does it get to market?... View Article
Mike Perkins
Blog Post
Signal Processing

The Math Behind Analog Video Resolution

NTSC video signals remain vital for many applications due to their affordability and sufficient resolution for security needs. Learn why NTSC still matters today!
Learn how to prevent memory leaks in C/C++ with Ben's Golden Rule. Follow these steps for effective memory management and ensure your embedded systems run smoothly!
As all good project managers know, there are three dimensions to any engineering effort: The features of the product: What does the product do and how does it look? (For sake of simplicity, let’s include “quality” as a product feature.) The schedule on which the product is produced: How fast does it get to market?... View Article
NTSC video signals remain vital for many applications due to their affordability and sufficient resolution for security needs. Learn why NTSC still matters today!
Howdy Pierce
Blog Post
Video

On the Importance of Encrypting Video

This morning brought a front-page Wall St. Journal article that’s a bit of a jaw-dropper: Militants in Iraq have used $26 off-the-shelf software to intercept live video feeds from U.S. Predator drones, potentially providing them with information they need to evade or monitor U.S. operations. … The potential drone vulnerability lies in an unencrypted downlink... View Article
Howdy Pierce
Blog Post
Outsourced Engineering

Outsourcing Just the 1.0

Consider outsourcing just the 1.0 version of your product for a quick market entry, then bring maintenance and enhancements in-house. Learn more about this strategic approach here!
Cardinal Peak
Blog Post
Image Processing

Detecting Well-Focused Images

Our expert discusses how to write a program to automatically determine which photo in a group of pictures of the same scene is in the best focus. The trick is to use a contrast measurement in the passive autofocus algorithm.
This morning brought a front-page Wall St. Journal article that’s a bit of a jaw-dropper: Militants in Iraq have used $26 off-the-shelf software to intercept live video feeds from U.S. Predator drones, potentially providing them with information they need to evade or monitor U.S. operations. … The potential drone vulnerability lies in an unencrypted downlink... View Article
Consider outsourcing just the 1.0 version of your product for a quick market entry, then bring maintenance and enhancements in-house. Learn more about this strategic approach here!
Our expert discusses how to write a program to automatically determine which photo in a group of pictures of the same scene is in the best focus. The trick is to use a contrast measurement in the passive autofocus algorithm.
Mike Perkins
Blog Post
Signal Processing

Noise Floor

As shown in a previous post, for samples taken from a zero mean i.i.d noise signal, the expected power of the k’th DFT coefficient is given by     As discussed in that post, when plotting the power of the k’th coefficient as a function of frequency, the “noise floor” will decrease as N increases... View Article
Cardinal Peak
Blog Post
Video

Uploading Kodak Zi8 Videos to Flickr

Fix your Kodak Zi8 video upload issues to Flickr with our straightforward conversion solution using ffmpeg. Enjoy seamless sharing now!
Mike Perkins
Blog Post
Security

IACP Product Introduction

I just spent the last three days at the IACP show in Denver — the annual conference and expo for the International Association of Chiefs of Police. For anyone who was once a 12-year-old boy, IACP is about as cool as it comes because there are all sorts of cop paraphernalia on display — from... View Article
As shown in a previous post, for samples taken from a zero mean i.i.d noise signal, the expected power of the k’th DFT coefficient is given by     As discussed in that post, when plotting the power of the k’th coefficient as a function of frequency, the “noise floor” will decrease as N increases... View Article
Fix your Kodak Zi8 video upload issues to Flickr with our straightforward conversion solution using ffmpeg. Enjoy seamless sharing now!
I just spent the last three days at the IACP show in Denver — the annual conference and expo for the International Association of Chiefs of Police. For anyone who was once a 12-year-old boy, IACP is about as cool as it comes because there are all sorts of cop paraphernalia on display — from... View Article