摘要:
A system is disclosed that can determine the speed of an object and report that speed in a format suitable for use on a television broadcast, a radio broadcast, the Internet or another medium. One example of a suitable use for the present invention includes determining the speed that a baseball player swings a bat. Another use of the present invention is to measure the speed of a moving ball. In one embodiment, the system includes a set of radars positioned behind and pointed toward the batter. Data from all of the radars is collected and sent to a computer which can determine the start of a pitch, when a ball was hit, the speed of the ball and the speed of the bat.
摘要:
A system is disclosed that can determine the speed of a golf club or golf ball, and report that speed in a format suitable for use on a television broadcast, a radio broadcast, the Internet or another medium. In one embodiment, the system includes a set of radars pointed toward the golf ball. Data from the radars is collected and sent to a computer which can determine the speed of the club during a swing, the speed of the ball after being hit, the angle of the path of the ball and/or other related statistics.
摘要:
A system for enhancing the television presentation of an object at a sporting event includes one or more sensors which are used to determine the location of the object. Based on the location of the object and the field of view of a broadcast camera, a processor determines the position of the object in a video frame of the broadcast camera. Once knowing where the object is positioned within the video frame, the television signal can be edited or augmented to enhance the presentation of the object.
摘要:
A system for enhancing the television presentation of an object at a sporting event includes one or more sensors which are used to determine the location of the object. Based on the location of the object and the field of view of a broadcast camera, a processor determines the position of the object in a video frame of the broadcast camera. Once knowing where the object is positioned within the video frame, the television signal can be edited or augmented to enhance the presentation of the object.
摘要:
A wireless local loop system is provided that includes a wireless base station that communicates with a subscriber station via a wireless link. The wireless link can carry a voice service, such as telephone calls, or a data service, such as internet browsing. The subscriber station includes a steerable antenna. A presently preferred steerable antenna for use with the subscriber station includes a driven element mounted on a base plane that is surrounded by a plurality of parasitic elements also mounted to the base plane. The parasitic elements can be optionally grounded or floated in order to reflect the wireless link towards the driven element. The antenna can be oriented in a desired direction during the transception of a voice or data service. A method of transceiving between a wireless local loop subscriber station and a wireless local loop base station is also provided.
摘要:
A wireless local loop system is provided that includes a wireless base station that communicates with a subscriber station via a wireless link. The wireless link can carry a voice service, such as telephone calls, or a data service, such as internet browsing. The subscriber station includes a steerable antenna. A presently preferred steerable antenna for use with the subscriber station includes a driven element mounted on a base plane that is surrounded by a plurality of parasitic elements also mounted to the base plane. The parasitic elements can be optionally grounded or floated in order to reflect the wireless link towards the driven element. The antenna can be oriented in a desired direction during the transception of a voice or data service. A method of transceiving between a wireless local loop subscriber station and a wireless local loop base station is also provided.
摘要:
A wireless communication device repeater includes two antennas coupled to a bi-directional gain stage. A gain control system is coupled to the gain stage and adjusts the gain of the gain stage based on oscillation events.
摘要:
A fluid flow device includes an actuator, an RF transmitter, a gated RF receiver, and a processor. The RF transmitter is configured and arranged to produce a plurality of pulses of RF energy spaced apart in time to form a sensor field. The gated RF receiver is configured and arranged to receive RF energy reflected by objects within the sensor field. The processor is coupled to the gated RF receiver for evaluating the reflected RF energy. The processor is also coupled to the actuator and is configured and arranged to activate the actuator in response to the reflected RF energy to control fluid flow. In addition, a new low power radar sensor operates by providing radar pulses that are non-uniformly spaced in time. In operation, a burst of pulses is initiated in the transmitter. Between each burst is a period of rest time in which the transmitter is not transmitting RF energy.
摘要:
A toilet ventilation device includes a housing that defines an air inlet aperture and an air outlet aperture. Within the housing are an air movement apparatus for drawing air into the device, a filter for removing malodorous elements in the air, and a radar sensor for activating the air movement apparatus in response to the presence of a user and, optionally, deactivating the air movement apparatus when the user leaves. The toilet ventilation device is configured and arranged to draw air, using the air movement apparatus, from the toilet, through the air inlet aperture, into contact with the filter, and out the air outlet aperture. In one embodiment, the toilet ventilation device is disposed over the overflow conduit of the toilet to draw air from the bowl of the toilet, through the overflow conduit, and into the toilet ventilation device. The entire toilet ventilation device is preferably disposed within a tank of a toilet.
摘要:
The present invention is a system for controlling a plumbing fixture. The system includes at least two sensors, each sensor including a receiver, and a controller coupled to receive detection signals from the sensors and to generate a control signal in response to the received signals. An actuator is coupled to receive the control signal from the controller and couplable to the plumbing device to act on the bathroom device. The invention is also a method of controlling plumbing fixtures that includes receiving detection signals from a plurality of sensors in a central controller, selecting, in the central controller, which of a plurality of actuators attachable to the plumbing fixtures to operate and directing control signals to the selected actuator to operate the selected actuator.