A camera for facilitating autonomous picture production includes an imager for capturing an image stream, a signal processor for processing the image stream into a plurality of image data paths, at least one image stream output, and a memory for cyclically buffering images of at least two of the plurality of image data paths, into separate circular buffers, respectively, and for buffering one or more output image streams of the camera. A camera for facilitating autonomous picture production produces a standard resolution and rate image stream and a slow-motion image stream of an action of interest.

An autonomous picture production system for automatically capturing an image of a location within a spectator seating area of a stadium upon request of a spectator includes one or more motorized cameras, an external interaction device for receiving an external request from the spectator, a camera control device for determining an optimal camera from the one or more motorized cameras for capturing the image, the camera control device controlling the optimal camera to capture the image, and a database for storing the image, wherein the external interaction device informs the spectator how to retrieve the image from the database.

A camera for facilitating autonomous picture production includes an imager for capturing an image stream, a signal processor for processing the image stream into a plurality of image data paths, at least one image stream output, and a memory for cyclically buffering images of at least two of the plurality of image data paths, into separate circular buffers, respectively, and for buffering one or more output image streams of the camera. A camera for facilitating autonomous picture production produces a standard resolution and rate image stream and a slow-motion image stream of an action of interest.

A stepping exercise machine includes a base and a pedal. The base is provided with an undulating slide rail. A top end of the slide rail is defined as a peak. Bottom ends of two sides of the peak are defined as troughs. The two sides of the peak or the bottom ends of the troughs are provided with stop blocks, respectively. An underside of the pedal is pivotally connected with rollers. Two sides of the underside of the pedal are fixedly connected with a pair of stretchable elastic members. The other ends of the pair of stretchable elastic members are fixed to two sides of the base. The rollers support and drive the pedal to reciprocate along the undulating slide rail ups and downs by means of the stretchable elastic members.

User activity including both athletic activity (e.g., running, walking, etc.) and non-athletic activity (shopping, reading articles, etc.) may be monitored and tracked by an athletic monitoring and tracking device and service. The user activity may be used to award a user with an amount of virtual currency to encourage the user to continue various activities. In one example, users may use the virtual currency to purchase or otherwise acquire various products, services, discounts and the like. A user may track an amount currency earned and/or needed relative to an amount required to acquire a desired product or service. Additionally or alternatively, a visual appearance of a user device (e.g., a watch or athletic activity band) may change based on the user's activity level, an amount of virtual currency earned and the like.

An Internet of Thing (IoT) device includes a camera coupled to a processor; and a wireless transceiver coupled to the processor. Blockchain smart contracts can be used with the device to facilitate secure operation.

A high-speed skatemill with a movable skatemill belt that includes a movable skatemill belt mounted on the rotating drums and where the working area of the movable skatemill belt is supported by stationary rigid sliding pads with integrated distribution channels for distributing a compressed gas or gas mixtures into the injection openings or slits. The compressed gas or the compressed gas mixture optionally enriched with an anti-friction medium in the form of a vapor or aerosol or dispersion containing solid dust particles or solid microparticles is injected through the inlet openings. By means of the anti-friction applicator, the anti-friction medium is applied to the movable skatemill belt, which then transports the medium to the points of contact with the fixed rigid sliding pads. Stationary solid sliding pads can be cooled down by liquid and/or gaseous cooling medium circulating by default in the hollow support beams of the stationary solid sliding pads.

A helmet including a head-facing portion with an exterior surface and an antimicrobial coating applied thereto. The antimicrobial coating includes a silane quaternary ammonium ion or salt thereof. Exemplary silane quaternary ammonium ions or salts thereof include: 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium ion, 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium chloride, 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium ion, and 3-(trihydroxysilyl)propyldimethyloctadecyl ammonium chloride.

Described herein is a modular skate system that includes at least one modular skate component comprising a major surface, a core comprising a body formed from a first material, an outer layer formed from a second material, the outer layer surrounding at least a portion of the core, wherein the first material is different from the second material, and wherein the major surface comprises the outer layer.

User activity including both athletic activity (e.g., running, walking, etc.) and non-athletic activity (shopping, reading articles, etc.) may be monitored and tracked by an athletic monitoring and tracking device and service. The user activity may be used to award a user with an amount of virtual currency to encourage the user to continue various activities. In one example, users may use the virtual currency to purchase or otherwise acquire various products, services, discounts and the like. A user may track an amount currency earned and/or needed relative to an amount required to acquire a desired product or service. Additionally or alternatively, a visual appearance of a user device (e.g., a watch or athletic activity band) may change based on the user's activity level, an amount of virtual currency earned and the like.