Abstract: The subject matter disclosed herein relates to systems and methods for detecting, calculating, and displaying the time-of-flight or hang-time of a moving and jumping object such as a skier or snowboarder by using at least one accelerometer secured within a small wearable device. In one embodiment, the device includes: a static acceleration detection device for detecting the static acceleration of the object over at least first, second, and-third periods of time as the object respectively moves, jumps in at least first, second, and third trajectories, and lands at least first, second, and third times along the surface thereby defining at least respective first, second, and third time-of-flight events; a calculating device for determining the approximate time-of-flight of the object during the first, second, and third time-of-flight events; and a display device for displaying in a readable format the approximate time-of-flights associated with the first, second, and third time-of-flight events.

Abstract: A hang-timer device is disclosed that is capable of issuing recording instructions to a recording device, such as a digital camera. The hang-timer can measure a static acceleration profile of a wearer of the hang-timer, and based on this static acceleration profile it can issue recording instructions to a recording device. For example, if the static acceleration profile changes from about 1 g to about 0 g, the hang-timer can issue instructions for the recording device to record; additionally, if the profile changes from about 0 g to about 1 g, it can issue instructions to stop recording. Moreover, the hang-timer can issue instructions for the recording device to record some period of time before a hang-time event and some period of time after a hang-time event. Various other such variations on the general notion described above are also disclosed.

Abstract: The invention disclosed herein relates to systems and methods for detecting, calculating, and displaying the time-of-flight or hang-time of a moving and jumping object such as a skier or snowboarder by using at least one accelerometer secured within a small wearable device. In one embodiment, the inventive device comprises: a static acceleration detection means for detecting the static acceleration of the object over at least first, second, and-third periods of time as the object respectively moves, jumps in at least first, second, and third trajectories, and lands at least first, second, and third times along the surface thereby defining at least respective first, second, and third time-of-flight events; a calculating means for determining the approximate time-of-flight of the object during the first, second, and third time-of-flight events; and a display means for displaying in a readable format the approximate time-of-flights associated with the first, second, and third time-of-flight events.