A drug delivery device comprising; a housing; a cylindrical member configured to be rotatably supported inside the housing, wherein the outer surface of the cylindrical member is provided with a track comprising a sequence of encoded images; and a sensor directed at the track of the cylindrical member and configured to detect features of the encoded images.

A capacity counter system has a central capacity controller, a clicker to indicate when people enter or leave an area, and a video system for displaying a running count of how many people are in the area. The controller, clicker and video system communicate wirelessly using protocols that allow the controller to communicate with a plurality of clickers while being in close proximity to other controllers serving adjacent areas.

A capacity counter system has a central capacity controller, a clicker to indicate when people enter or leave an area, and a video system for displaying a running count of how many people are in the area. The controller, clicker and video system communicate wirelessly using protocols that allow the controller to communicate with a plurality of clickers while being in close proximity to other controllers serving adjacent areas.

A capacity counter system has a central capacity controller, a clicker to indicate when people enter or leave an area, and a video system for displaying a running count of how many people are in the area. The controller, clicker and video system communicate wirelessly using protocols that allow the controller to communicate with a plurality of clickers while being in close proximity to other controllers serving adjacent areas.

This tool for recording the number of swings in a ball game includes a plurality of holed beads 20 and a cord 30 that is passed through the holes 20H of the beads 20 and that holds the beads 20 so that the beads 20 can slide, the cord 30 is formed from a cord material that does not stretch in an axial direction but that stretches in a diametrical direction and that is normally urged in a diameter-expanding direction, and the cord 30 constrict in diameter so as to elastically interlock with the walls of the holes 20H of the beads 20 and hold the beads 20 in position, whereby the beads do not shift even if a player strongly shakes the tool, the number of swings in the ball game can be reliably recorded and confirmed, and the tool is easily assembled.

This tool for recording the number of swings in a ball game includes a plurality of holed beads 20 and a cord 30 that is passed through the holes 20H of the beads 20 and that holds the beads 20 so that the beads 20 can slide, the cord 30 is formed from a cord material that does not stretch in an axial direction but that stretches in a diametrical direction and that is normally urged in a diameter-expanding direction, and the cord 30 constrict in diameter so as to elastically interlock with the walls of the holes 20H of the beads 20 and hold the beads 20 in position, whereby the beads do not shift even if a player strongly shakes the tool, the number of swings in the ball game can be reliably recorded and confirmed, and the tool is easily assembled.

A system and method for counting items are described. A photocell detects an item, after which a converter converts the generated digital signal to an audio signal that a computing device can recognize. Data from the counting of items is displayed on a user interface of the computing device and/or other visual interfaces.

A system and method for counting items are described. A photocell detects an item, after which a converter converts the generated digital signal to an audio signal that a computing device can recognize. Data from the counting of items is displayed on a user interface of the computing device and/or other visual interfaces.

A fluid dispenser comprising a body (1), a fluid reservoir (2), a dispenser member, such as a pump or a valve, mounted on said reservoir (2), and a dose indicator device for indicating the number of doses of fluid that have been dispensed or that remain to be dispensed from said reservoir, the dispenser being characterized in that said dose indicator device includes a first safety system for actuating the dose indicator device once the dispenser has performed a predetermined incomplete actuation stroke, even if the dispenser does not perform the complete actuation stroke.

A fluid dispenser comprising a body (1), a fluid reservoir (2), a dispenser member, such as a pump or a valve, mounted on said reservoir (2), and a dose indicator device for indicating the number of doses of fluid that have been dispensed or that remain to be dispensed from said reservoir, the dispenser being characterized in that said dose indicator device includes a first safety system for actuating the dose indicator device once the dispenser has performed a predetermined incomplete actuation stroke, even if the dispenser does not perform the complete actuation stroke.