Abstract: An audio beacon system, apparatus and method for collecting information on a panelist's exposure to media. An audio beacon is configured as on-device encoding technology that is operative in a panelist's processing device (e.g., cell phone, PDA, PC) to enable the device to encode and/or process media data and acoustically transmit it for a predetermined period of time. The acoustically transmitted data is received and processed by a portable audience measurement device, such as Arbitron's Personal People Meter™ (“PPM”), or other specially equipped portable device to enable audience measurement systems to achieve higher levels of detail on panel member activity and greater association of measurement devices to their respective panelists.

Abstract: A spring powered engine comprising a headgear having a cylindrical outer casing with gear threads positioned on a radial circumference of the outer casing. A rotatable headgear shaft is positioned through the outer casing and a spring coil is dispersed within the outer casing, the spring coil having one end fixed to the headgear shaft and another end fixed to the inner circumference of the headgear casing. A motor is provided to wind the coil spring, and the undercarriage of the coil spring rotates the headgear which, through a series of gears and pulleys, rotates a transmission shaft to power a vehicle.