Laser detection and timing method and apparatus
AssigneeDux Technologies Pty Ltd
InventorBradley James Duxbury
Life of this patent
Estimating the term…
Abstract
Timing apparatus which may be in the form of a stop watch and which includes a laser beam transmitter for transmitting a laser beam and a detector for detecting a reflected laser beam reflected from objects for example runners intercepting the transmitted beam. The apparatus includes a processor for calculating elapsed time of movement of the runners and their finishing order from the reflected signals received by the detector.
Claims23
Apparatus for determining the elapsed time of movement and identifying each of a plurality of movable objects travelling or moving in separate lanes, said apparatus comprising at least one laser beam transmitter for transmitting modulated laser beam signals across said lanes, a detector for detecting the interception by each said object of said transmitted laser beam by the receipt of respective reflected laser beam signals from each said object, and processor means which determines from the time between transmission of said laser beam signals and receipt by said detector of reflected signals from respective said objects, the identity of said objects and/or the lanes of said objects, said processor means further determining from said received reflected laser beam signals, said elapsed time of each said object.
A laser stopwatch comprising a support body adapted to be hand held, said support body supporting a laser beam transmitter for transmitting pulse modulated laser beam signals, a detector for detecting a reflected laser beam signals, a timer for measuring an elapsed time of movement of objects from a start time, and processor means which measures the time between the transmission of said laser beam signals and the receipt of corresponding reflected signals to enable the identification of objects from which said laser beam signals are reflected, said processor means being further adapted to calculate from said received reflected signals, the said elapsed time of each of said objects.
A method of determining an elapsed time of movement and the identification and order of a plurality of movable objects moving in respective lanes and passing a selected location, said method including the steps of transmitting laser beam signals across said lanes at said location and thereby across the path of movement of said objects, and calculating said elapsed time of each said movable object and the identity of each said object by detecting from receipt of reflected said signals from respective objects due to the interception of said objects of a laser beam transmitted by said laser beam transmitter, the elapsed time of each said object and the identity of each said object and/or lanes of each said object from time between transmission of said signals and receipt of reflected said signals from each said object.
Dependencies are inferred from the claim text.