From rolling the side, rolling the ball, to the new and updated trackpad, BlackBerry is advancing. The trackpad is replacing the trackball, and after the issues surrounding the Tour’s trackball, the trackpad is a welcomed and embraced improvement. We can thank Inside BlackBerry for Â the trackball’s science lesson.
Inside BlackBerry is the Official BlackBerry Blog, and they were able to have a lesson from the Vice President of Handheld Products and an Electronics Designer for a quick explanation of the science beneath the trackpad. The explanation is interesting, comparing the trackpad to an optical mouse. The trackpad is the optical mouse and your fingertip is the desk.
So basically it works as an upside down infrared video camera with a very low resolution, a very fast frame-rate camera that works in black and white, grey scale. The “camera” actually sees the gradations in your fingertip. As you move your finger, the algorithm happens inside which detects movement.
Unlike a touchscreen, the trackpad doesn’t work based on the gradations of your fingertip alone, you can also use any type of slightly rough textured device. It will work fine though not as exact as your fingertip.
For more details, please check out the article here. Personally, while I like the trackpad, I’m a little sad to say goodbye to the trackball. It’s definitely a little different to work with, but I’m sure it’s going to be far less issues with the trackpad than with the trackball. I’m just curious what the impact of scratches are upon the accuracy and use of the trackpad. What are your thoughts on the trackpad?
[via: Inside BlackBerry]