Technology for the wireless interconnection of wearable personal electronic accessories

Wireless and low-power technology for interconnecting personal electronic accessories (PEAs) and a wearable basestation worn by a user is presented. This technology enables applications such as personal inertial navigation, medical monitoring, sports training, and virtual reality. PEAs require small size and weight, protocol robustness, and ultra low power consumption, Exploiting the short interconnect distance and designing an air interface protocol specifically for low power consumption allows reducing the analog/RF section power consumption to under five nanojoules per bit. DSP control of the LO, filters, PLL, power management, TDMA event control, FEC encoding and decoding, matched filters, and transducer present architectural challenges to achieve matching power consumption.