Abstract: A sonar system for transmitting and/or receiving sonar beams with a desired beam pattern or patterns. The system has a transducer having a linear array of transducer elements, which is driven by element driving signals to project a sonar beam and which generates element receive signals in response to a received sonar signal or sonic wave. A control unit controls the transducer and is configured to generate the element driving signals from a waveform signal based on a set of drive pattern weightings associated with a desired beam pattern to project from the transducer. The control unit is also configured to apply a set of receive pattern weightings to the element receive signals, the receive pattern weightings associated with a desired beam pattern to be detected or sensed received by the sonar system. The drive pattern weightings and receive pattern weightings comprise an amplitude component and polarity component.

Abstract: An arm rehabilitation system for exercising a user's arm. The system provides an arm support device moveable upon a support surface by a user's first arm. The arm support device has a main body configured to movably engage the support surface on one side and has a hand support portion on an opposing side at or toward one end of the body for supporting a user's hand of the first arm. A primary hand support formation protrudes from the hand support portion and a secondary hand support handle extends from the main body at or toward the periphery of the hand support portion. An adjustable switch support boom assembly is also mounted to the main body and has at least one operable user input component for generating an actuation signal in response to operation by the user. An onboard motion tracking system mounted to or within the main body is configured to sense motion of the main body to enable user interaction with an interactive computer system running an application program.

Abstract: An exercise system/device for exercising a user's upper limb is described. The exercise system/device is intended for use in rehabilitating patients suffering hemiparesis that causes one upper limb to be at least partially paralyzed. For example, the exercise system/device can be used for neuroplastic retraining rehabilitation techniques for enabling patients to regain control of their paralyzed upper extremities, including shoulders, elbows, wrists and fingers, but primarily their shoulders and elbows via larger arm movements. This is achieved through the use of an elongate handle and a motion sensing device associated with the handle for communicating the user's movements of the handle to a gaming system. Although the exercise system/device is primarily for rehabilitation of patients suffering hemiparesis, it may also be used by any person for bilateral training and exercising upper limbs.

Abstract: A drive system for driving a diaphragm pressure wave generator comprising opposed first and second diaphragms (11,13) that are each coupled at or toward opposite ends of a reciprocally moveable drive piston (19). The drive system comprises an operable actuator (27) that generates a reciprocating motion output having a low force and long stroke. The drive system also comprises a hydraulic amplifier that is operatively coupled between the actuator and the drive piston, the hydraulic amplifier being arranged to convert the reciprocating motion output from the actuator into an amplified output having a higher force and shorter stroke, and apply the amplified output to the drive piston (19) to cause the drive piston and opposed diaphragms (11,13) to reciprocate and generate waves.

Abstract: An arm rehabilitation system for exercising a user's arm. The system provides an arm support device moveable upon a support surface by a user's first arm. The arm support device has a main body configured to movably engage the support surface on one side and has a hand support portion on an opposing side at or toward one end of the body for supporting a user's hand of the first arm. A primary hand support formation protrudes from the hand support portion and a secondary hand support handle extends from the main body at or toward the periphery of the hand support portion. An adjustable switch support boom assembly is also mounted to the main body and has at least one operable user input component for generating an actuation signal in response to operation by the user. An onboard motion tracking system mounted to or within the main body is configured to sense motion of the main body to enable user interaction with an interactive computer system running an application program.

Abstract: The invention relates generally to oligosaccharide compounds and the use of these compounds as pharmaceuticals for treating diseases or conditions in which it is desirable to inhibit ?-secretase.