Abstract: The disclosed invention introduces a steer-drive wheel mechanism, suitable for applications like mobile platforms, featuring two motors mounted on the platform. This design enables an unrestricted steering angle for the wheel without encountering challenges in delivering power and control signals to the motors. The two motors collaborate through two coaxially arranged axes in driving and steering the wheel, ensuring optimal power utilization and minimizing unnecessary mechanical stresses. Continuous cooperation of the two motors in driving and steering the wheel can be achieved using a ‘motion synthesizer.’ This device accepts two rotational motions from the motors and, depending on the required operation of the wheel mechanism, produces appropriate rotational motions for driving and steering the wheel.

Abstract: A control system includes a locomotion device that is configured to accompany a moving object such as a human operator or a robotic device. The control system is configured to control a motion of the locomotion device based on a location of at least one of the moving object relative to the locomotion device or a location of the locomotion device relative to the moving object. The control system is configured to control the locomotion device to maintain a position of the locomotion device with respect to the moving object to thereby synchronize the motion of the locomotion device with a motion of the moving object.

Abstract: A control system includes a locomotion device that is configured to accompany a moving object such as a human operator or a robotic device. The control system is configured to control a motion of the locomotion device based on a location of at least one of the moving object relative to the locomotion device or a location of the locomotion device relative to the moving object. The control system is configured to control the locomotion device to maintain a position of the locomotion device with respect to the moving object to thereby synchronize the motion of the locomotion device with a motion of the moving object.

Abstract: An azimuth thruster system includes a pod configured to rotate relative the hull of the ship about an azimuthal axis of the pod, a propeller shaft extending from the pod and being configured to rotate relative to the pod about a central axis of the propeller shaft, an outer shaft disposed at least partially in the pod and configured to be driven by a first primary prime mover, an inner shaft disposed at least partially within the outer shaft and configured to be driven by a second primary prime mover, and a pod gear unit disposed within the pod and coupled to the outer shaft, the inner shaft, and the propeller shaft. The outer and inner shafts are configured to rotate at least one of the pod and the propeller shaft based on directions and magnitudes of the torques generated by the first and second primary prime movers.

Abstract: An azimuth thruster system includes a pod configured to rotate relative the hull of the ship about an azimuthal axis of the pod, a propeller shaft extending from the pod and being configured to rotate relative to the pod about a central axis of the propeller shaft, an outer shaft disposed at least partially in the pod and configured to be driven by a first primary prime mover, an inner shaft disposed at least partially within the outer shaft and configured to be driven by a second primary prime mover, and a pod gear unit disposed within the pod and coupled to the outer shaft, the inner shaft, and the propeller shaft. The outer and inner shafts are configured to rotate at least one of the pod and the propeller shaft based on directions and magnitudes of the torques generated by the first and second primary prime movers.

Abstract: A system for operating a horizontal axis wind turbine includes a turbine rotor and a rotor blade adapted to rotate about a horizontal axis, two vertical shafts, a plurality of gears adapted to translate a rotational motion of the turbine rotor into counter-rotating vertical rotational motions of the shafts, and two generators fixed to a tower, adapted to translate a rotational motion of the shafts into electrical power. A method of operating a horizontal axis wind turbine system includes obtaining a turbine rotor and a rotor blade adapted to rotate about a horizontal axis, obtaining two vertical shafts, obtaining a plurality of gears, and obtaining two generators fixed to a tower, translating a rotational motion of the turbine rotor into counter-rotating vertical rotational motions of the shafts using the gears, and translating a rotational motion of the shafts into electrical power using the generators.

Abstract: Systems and methods for operating horizontal axis wind turbine systems are disclosed. A system includes a turbine rotor and a rotor blade adapted to rotate about a horizontal axis, two vertical shafts, a plurality of gears adapted to translate a rotational motion of the turbine rotor into counter-rotating vertical rotational motions of the shafts, and two generators fixed to a tower, adapted to translate a rotational motion of the shafts into electrical power. A method of operating a horizontal axis wind turbine system includes obtaining a turbine rotor and a rotor blade adapted to rotate about a horizontal axis, obtaining two vertical shafts, obtaining a plurality of gears, and obtaining two generators fixed to a tower, translating a rotational motion of the turbine rotor into counter-rotating vertical rotational motions of the shafts using the gears, and translating a rotational motion of the shafts into electrical power using the generators.

Abstract: The personal code registration and use method and the service system therefor, through a telecommunication network, are provided. In the personal code registering method it is checked whether there is generated a code registration request from a subscriber terminal connected to the telecommunication network. When the code registration request is generated, subscriber information is received and the personal code is generated. If the generated personal code corresponds to a new code, a code registration and storage for the generated personal code is performed. Thereby, a peculiar identification code can be adequately used to applicable things, substantially reducing a leakage of personal information.