Abstract: A detection system and method for detecting debris in a workspace comprising a grid formed by a first set of tracks extending in a first direction and a second set of tracks extending in a second direction transverse to the first direction. The method involves obtaining image data, representative of an image of at least part of the workspace, and processing it with an object detection model trained to detect instances of debris on the grid. It is determined, based on the processing, whether the image includes debris on the grid. Annotation data, indicative of the debris in the image, is output in response to determining that the image includes debris on the grid.

Abstract: A method including authenticating a voucher which has a time limited validity period. The method comprises: a user requesting issuance of a token to a customer in a machine readable form; and issuing one or more modified versions of the token to the user, each modified version of the token being associated with a different time period of validity of the token; scanning the ticket on a scanning device connected to a terminal operated by the user; the scanning device modifying the token according to a current time period; and the terminal operated by the user comparing the modified token provided by the scanner with the modified tokens issued by the central server to validate the scanned token. A further method is provided for performing a transaction, between a customer and a vendor, using a customer's mobile phone as an authorisation device.

Abstract: The present invention provides a method of training a DSL link while transmitting data over a powerline connection. If the powerline connection causes interference on the DSL link then this will be present during the line training, giving a more robust set of line parameters.

Abstract: A method including authenticating a voucher which has a time limited validity period. The method comprises: a user requesting issuance of a token to a customer in a machine readable form; and issuing one or more modified versions of the token to the user, each modified version of the token being associated with a different time period of validity of the token; scanning the ticket on a scanning device connected to a terminal operated by the user; the scanning device modifying the token according to a current time period; and the terminal operated by the user comparing the modified token provided by the scanner with the modified tokens issued by the central server to validate the scanned token. A further method is provided for performing a transaction, between a customer and a vendor, using a customer's mobile phone as an authorisation device.

Abstract: The present invention provides a method of training a DSL link whilst transmitting data over a powerline connection. If the powerline connection causes interference on the DSL link then this will be present during the line training, giving a more robust set of line parameters.