Posts Tagged ‘digital’


A Simple Product With All the Features

March 11, 2009

I’ve been writing about keeping products simple. It makes your product easier to use for the majority of users. However, what about the users that don’t want simple? How do you keep them excited about your product?

I want to talk about cameras for a moment, as I’ve found them to be a good example of products that might have a good balance of everything. There’s no question that digital SLR’s (single lens reflex) cameras take better pictures than their point-and-shoot counterparts. They have larger, better quality CCD’s and better lenses. For the advanced users, it’s also easier to quickly adjust such features as shutter speeds and F-stops. Point-and-shoots are meant for convenience; they fit neatly in your pocket so you always have it handy. 

However, if you delve into the manual settings for a point-and-shoot (I have had good experiences with a few of the products in the Canon Powershot lineup) you might find ways to tweak your photos for better results and get more functionality from your camera. I like to play with the depth of field, using focus to highlight my target instead of location within the frame or lighting. I’ve also been experimenting with white-balance. I’ve found those two features alone have dramatically improved my ability to capture the moment. My Canon SD750 even has the ability to setup hotkeys, so I can get into the white-balance menu with one key-press instead of navigating the function-tree. 

Even though I’ve been stressing the importance of keeping products simple, they should only be as simple as they need to be. In the case of my camera, sometimes I want to just grab a quick picture of my kids doing something goofy, and I don’t want to worry about setting up a shot. Other times, I’d really like to get an image with more character, and I’m glad I have a camera that has a multitude of manual features. 

What products are you using that work well for both the novice user and the advanced hobbiest?

An appetizer: Figs topped with chevre and wrapped in prosciutto. Photo taken on the Automatic settings.

An appetizer: Figs topped with chevre and wrapped in prosciutto. Photo taken with the Automatic settings - auto focus, flash, 77mm focal length (35mm equiv.), f-stop (f/4.0) and exposure (1/60).



The same appetizer taken with Manual settings. No flash, ISO 80, Macro focal adjustment.

The same appetizer taken with Manual settings. No flash, f/2.8, exposure (1/40), 37mm focal length (35mm equiv.).


Preparing for the Digital TV Transition

February 11, 2009

digital_worldI get most of my news and entertainment online instead of through the television. But, we still turn on the weather or PBS cartoons in the morning, so we needed to prepare for the upcoming “digital transition”. Here’s a summary of how I chose a converter box and built an antenna. Did I miss anything? What did you do?

As you’ve probably heard, Congress and the FCC are requiring full-power television broadcasters to drop their analog signal and go completely digital. The date for this transition was originally scheduled to be February 17, 2009, but it was postponed recently to June 12, 2009. According to the FCC, they plan to use the “discarded” analog spectrum for public safety communications (fire, police, rescue squads, etc.) as well as auction off portions to private companies for the expansion of more advanced wireless programs such as wireless broadband. Regardless of why Congress has federally mandated a technological shift for television broadcasting, it appears to be happening. Even with the postponement, there is no reason for you to wait.

Note: If you’re a cable/FIOS/Satellite subscriber, you don’t need to worry. The digital transition is only for over-the-air (OTA), broadcast television that you’d pick up with an antenna. 

Read the rest of this entry ?


Can you feel me now?

February 2, 2009

Touch the red pillIn graduate school, I studied haptics. But what is “haptics”, and why does it matter?

Haptics is the study of the sense of touch. Unlike our other senses – sight, smell, hearing, and taste – we can feel the world throughout our entire body. It’s a very complex system. We use our sense of touch to perceive temperature, texture, vibration, density, and more. But what if you couldn’t touch anything? How would you be affected?

Haptics and technology
Not everyone is taking to the digital revolution. People like the feel of a newspaper or of gliding pen across paper and do not like to work on a computer. Now that digital technology has progressed and grown into more corners of our lives, people are less accepting of the fact that it lacks the sense of touch.

The rumble pack in game controllers was one of the early attempts at integrating a sense of touch into the gaming experience. When you blow something up or drive off the track, an eccentric mass rotates (similar to a cell phone) and causes vibration. The sense isn’t overwhelming, submersive, or even accurate, but you can perceive meaning from that vibration, and it’s better than nothing.

For a class project, I developed a magnetically actuated force-feedback mouse. I added an electro-magnet to a common computer mouse and placed it on a steel mouse pad. When energized, the frictional force increased from almost nothing to 2N (.44lbf). Quite substantial. I devised several experiments to showcase how the feedback could be utilized and to explore how haptic feedback might improve a user’s ability to click on-screen items faster and more accurately. I created virtual textures and a target that slowed the mouse for you when you entered it. You can download a PDF of my paper detailing my project and the experimental results.

Companies and universities are studying the integration of haptic feedback into products of far greater importance than my class project. Intuitive Surgical leads the commercial medical robotics field with the da Vinci minimally invasive surgical system. Force feedback allows surgeons to have the tactile sensation similar to a standard minimally invasive procedure, except with the additional benefits of an intuitive control system, virtual boundaries, and motion scaling. Sensable Technologies has developed a haptic Dental Lab to digitally scan and interact with the details of a patient’s mouth to fabricate better crowns or bridgework. Immersion Medical manufactures a suite of surgical simulation products to provide doctors with lifelike training and planning tools. And, of course, Dr. Allison Okamura’s Haptics Lab (my alma mater) and other university programs are also on the cutting edge of haptics research, exploring new ways to interact with the tools of the next century.

The future of digital
As our interaction with the world around us becomes more digitized, we can expect great innovation in the use of haptic feedback. Logitech has improved on the vibrating game controller with some exciting racing wheels, and even the Blackberry Storm offers feedback in its touchscreen. We enjoy and need the sense of touch. It’s a large part of how we interact with the world and it improves our experience.

Dont’ worry, you will feel a thing.

Photo credit: Rodolfo Clix