Interactive generator: a self-powered haptic feedback device

We present Interactive Generator (InGen), a self-powered wireless rotary input device capable of generating haptic or force feedback without the need for any external power source. Our approach uses a modified servomotor to perform three functions: (1) generating power for wireless communication and embedded electronics, (2) sensing the direction and speed of rotation, and (3) providing force feedback during rotation. While InGen is rotating, the device is capable of providing the sensation of detents or bumps, changes in stiffness, and abrupt stops using only power that is harvested during interaction. We describe the device in detail, demonstrate an initial ‘TV remote control’ application, and end with a discussion of our experiences developing the prototype and application. To the best of our knowledge, InGen is the first self-powered device, which also provides haptic feedback during operation. More broadly, this work demonstrates a new class of input systems that uses human-g...

• Type: Journal
• Year: 2011
• Where: CHI
• Authors: Akash Badshah, Sidhant Gupta, Gabe Cohn, Nicolas Villar, Steve Hodges, Shwetak N. Patel
• Keywords: CHI 2011, External Power Source, Human Computer Interaction, Interactive Generator, Interface Device