Abstract: A computer-implemented method includes defining a valid scan or range of valid scans as a valid activity of an object in an application-specific activity taking place through a light curtain sensing area of a light curtain, defining an invalid scan or range of invalid scans as an invalid activity of the object in the application-specific activity taking place through the light curtain sensing area of the light curtain, storing parameters and activity-specific rules for processing a plurality of objects, monitoring and processing the object in the application-specific activity taking place through a light curtain sensing area of a low cost light curtain in conjunction with the stored parameters and activity-specific rules, and reporting a status and results of the processing of the object.

Abstract: A customer self-checkout system includes one or more checkout stations and multiple supervisor terminals. The supervisor terminals provide support to, and control over, the self-checkout system and checkout stations. A controller is used to coordinate communications among the checkout stations and supervisor terminals over a wired and/or wireless network interfaces. A user may provide input at supervisory terminal using an interface providing context sensitive prompting to enable control using a simple keyboard interface.

Abstract: A customer self-checkout system includes one or more checkout stations and multiple supervisor terminals. The supervisor terminals provide support to, and control over, the self- checkout system and checkout stations. A controller is used to coordinate communications among the checkout stations and supervisor terminals over a wired and/or wireless network interfaces. A user may provide input at supervisory terminal using an interface providing context sensitive prompting to enable control using a simple keyboard interface.

Abstract: A self-checkout system receives a plurality of objects for the identification of each object in the plurality of objects. The system allows security for a collection of the objects and a subset of the collection of objects to be resolved during a self checkout. In order for security to be resolved on an object, a subset of the collection of objects, or a collection of objects the weight detected on a security scale must be equal to the weight of the object, a sum of a subset weight of the collection, or a sum of the collection weight within a given tolerance. If security is not resolved, the system will prevent an additional object from being recognized by the system until the security for the object is resolved.

Abstract: A point-of-sale (“POS”) system includes POS devices and associated monitoring and diagnostic applications. POS peripherals in a POS device include data memory for storing device configuration and status information. A diagnostic application installed in the POS device monitors and diagnoses the POS device. The diagnostic application monitors the interactions between hardware in the POS device and applications that interface with the hardware. The diagnostic applications analyze these interactions, the configuration and status information and any logs it creates to provide diagnostic information. The POS device also includes several interfaces to access the diagnostic application.

Abstract: A self-checkout system includes a graphical user interface for self-checkout of non-bar-coded items. The interface displayes a predetermined image corresponding to a non-bar-coded item, and means for the user to select the image. A product look up (PLU) entry device provides a PLU corresponding to the item selected by the user and a processing unit uses the selected PLU to retrieve price information from a database. The processing unit may also maintain a list of most frequently sold items and the image of at least on item on the list is provided on the display screen. The processing unit may update the display screen when the list of most requently sold items changes. Images of other non-bar-coded items can also be displayed.