Sony has filed a patent application for a device called a SmartWig with hopes of becoming a major player in the wearable technology sector. The filing indicates the device could help blind people navigate roads and collect information such as the blood pressure, pulse, and temperature of the wearer, and gaming and virtual reality are other potential uses. Described as an intelligent tool and a fashion item at the same time, the SmartWig is designed to process data and communicate wirelessly with other external devices. Sony places the communication interface and sensors in the wig, which can be worn in addition to natural hair and keeps parts hidden from sight during use. "The system can detect these kinds of data naturally and transmit them to the server computer," Sony says. Sony also says the SmartWig offers significant advantages over other wearable computing devices with regard to user comfort and handling. During a presentation, for example, the wearer could simply raise her eyebrows to move to the next slide.