Embodiments provide techniques for altering a virtual world based on combinational input gestures. Embodiments retrieve a definition for a combinational gesture within a computer game, the definition specifying physical actions to perform according to a specified timing schedule in order to successfully perform the combinational gesture. User activity is monitored to detect when a first user input from a first input devices sufficiently matches a first predefined pattern of user input corresponding to a first physical action, and to detect when a second user input from a second input device sufficiently matches a second predefined pattern of user input corresponding to a second physical action. Embodiments determine that the first and second user inputs were performed according to the timing schedule specified in the definition. A status of at least one aspect of a virtual world for the computer game is altered, based on performance of the combinational gesture.

A method and system to deliver biomechanical feedback utilizes three major elements: (1) multiple hardware data capture devices, including optical motion capture, inertial measurement units, infrared scanning devices, and two-dimensional RGB consecutive image capture devices, (2) a cross-platform compatible physics engine compatible with optical motion capture, inertial measurement units, infrared scanning devices, and two-dimensional RGB consecutive image capture devices, and (3) interactive platforms and user-interfaces to deliver real-time feedback to motions of human subjects and any objects in their possession and proximity.

The invention discloses a recovery assistance device for helping in rescuing victims of avalanches, earthquakes or boat capsizes. The device is capable of calculating a position from combinations of a previous position and distances to other devices. Different configurations are possible, with a basic configuration consisting of a smart phone having waveform generation capabilities, processing and GNSS receiving capabilities. The device is programmed to be used in a defined mission by an application. The device can also receive a number of add-ons as a battery add-on, a modem add-on, a sound wave generation add-on, antennas, and protection, possibly waterproof, if adequate. Devices of the same type can be carried by people to be rescued and rescuers. The device is therefore quite versatile and can increase significantly the efficiency of rescue teams in different use case scenarios.

The invention generally relates to a grip for a golf club having a housing portion specifically for housing an accessory, the grip specifically configured to enhance performance and enjoyment of the game of golf. Grips of the invention help to provide a smoother gripping surface and to prevent relative motion between the accessory and the club when the accessory is coupled to the club.

A virtual reality baseball system uses a virtual reality device to present a simulated pitch to a batter. The system may include a bat mount configured to be removably secured to a bat. The bat and/or bat mount may include a sensor. The bat mount is configured to be attached to a knob of the bat such that it is not intrusive to a swing of the bat. A sensing device is configured to track movement of the sensor in the bat mount when the bat mount is secured to the bat.

The present disclosure provides a wireless signal transmitting ball to be used in practice or gameplay of a sport and/or other entertainment activities. The ball of the disclosure comprises a microprocessor unit configured to record, process, and transmit data to a paired device. Further disclosed is a method of actuating the ball between different modes. The ball could be used by players during practice to record data about their performance. The ball could also be used by players or game officials or referees to keep score, adjudicate and decide the gameplay. For example, the information about location of the ball could be used to track balls that could potentially be lost. Additionally, data about spin, trajectory, speed, force applied and the like could be used by players or broadcasters for gaining insights to add to viewing pleasure.

Systems and techniques for the collection and display of athletic information. Athletic data relating to a single person or group of people is collected at a central location, and subsequently displayed at a desired remote location so that the person or people can review and critique their performance. In addition, athletic data for multiple persons can be collected at a central location, and subsequently displayed to a user at a desired remote location, so that the user can compare his or her athletic activities to others.

An apparatus includes a communications interface that receives first sensed data from a first sensor attached to a user and second sensed data from a second sensor attached to a user. That apparatus also includes circuitry that analyzes the first sensed data and the second sensed data and provides a display signal that causes a display to produce first visual information regarding a motion of the user and second visual information regarding the motion of the user, the first visual information being different than the second visual information.

A swim training system, a swim data computation method using the same, and a swim training method using the same are provided. The swim training system includes a training device and a processing device. The training device measures a tension in a connecting component which is fastened to a swimmer. The processing device selects a conversion parameter from a conversion parameter table in the processing device according to a swimmer information. Then the processing device performs a conversion between the tension and a swimming speed with the conversion parameter to obtain the swimming speed of the swimmer.

A measurement system for use in an exercise machine, which exercise machine comprises a lifting mechanism and an engaging member for selectively engaging a number of stacked weights to the lifting mechanism, the measurement system comprising a pair of cooperating members including a range meter and a reflector member, wherein one of the cooperating members is connected to the lifting mechanism and the other of the cooperating members is connected to the engaging member, wherein the range meter is directed to measure a distance to the reflector member to determine a distance which correlates to the weight of the selectively engaged weights.