Abstract: A speech improvement system includes a memory, an audio input device, and a signal processing device. A baseline spoken audio signal is pre-recorded and stored in the memory. A real-time spoken audio signal is captured using the audio input device. The signal processing device is configured to compare the real-time spoken audio signal to the baseline spoken audio signal and generate a user alert, such as a haptic alert, an audible alert, and/or a visual alert, if the real-time spoken audio signal deviates from the baseline spoken audio signal by a preset threshold amount.

Abstract: A personal mobility device includes a pair of rear legs and a pair of front legs pivotably connected to the rear legs via a pair of hubs. A handle, having a loop shape and including a grip portion, is slidably mounted within the pair of hubs so that the height of the grip can be adjusted. The hubs lock the front and rear legs in both an open (unfolded) and closed (folded) configuration. By sliding the handle downward through the hubs, the legs are unlocked from the open position and allowed to pivot until locked in the closed configuration. Conversely, by sliding the handle upward through the hubs, the legs are unlocked from the closed position and allowed to pivot until locked in the open configuration.

Abstract: A personal mobility device includes a frame including first, second, third, and fourth frame members. The first and second frame members are connected, such as by a pivot joint. The third and fourth frame members are connected to collapse in the same plane as the first and second frame members. The first and third, and second and fourth, frame members are also connected via hinges. This allows the device to fold (“collapse”) and unfold (“expand”) substantially simultaneously in two substantially orthogonal planes. A tension wire assembly is provided that biases the frame into a collapsed configuration; a locking mechanism is provided that holds the frame in an expanded configuration. Alternatively, tendons can bias the frame into an expanded configuration.

Abstract: A personal mobility device includes a frame including first, second, third, and fourth frame members. The first and second frame members are connected, such as by a pivot joint. The third and fourth frame members are connected to collapse in the same plane as the first and second frame members. The first and third, and second and fourth, frame members are also connected via hinges. This allows the device to fold (“collapse”) and unfold (“expand”) substantially simultaneously in two substantially orthogonal planes. A tension wire assembly is provided that biases the frame into a collapsed configuration; a locking mechanism is provided that holds the frame in an expanded configuration. Alternatively, tendons can bias the frame into an expanded configuration.