Abstract: Systems, methods, and computer software are disclosed where sensor data is received from sensors operatively connected to a powered device. Based on the sensor data, an inventory of detectable items proximate the powered device is generated. The inventory of detectable items is compared to an expected inventory of detectable items that are expected to be proximate the powered device. An alert is generated at a client device when the inventory of detectable items does not match the expected inventory of detectable items.

Abstract: We describe a projected capacitance touch screen sensing system comprising: a plurality of touch sensing circuit modules each configured to interpolate between sensed touching of a plurality of adjacent electrodes simultaneously and to output corresponding interpolated touch sense data at a resolution greater than that of a spacing between said electrodes; wherein each of said row and column electrodes has a break to divide the electrode into portions, one of said portions having an electrical connection at one side of the display screen, the other of said portions having an electrical connection at an opposite side of the screen; the sensing system comprising a controller coupled to touch sense data outputs of first to fourth touch sensing circuit modules, said controller configured to select interpolated touch sense data from one of first and second modules to provide row interpolated touch sense data, wherein selection of said first and second modules is responsive to interpolated touch sense data from sai