Abstract: A system, method, and computer product, the system comprising: a transmitter configured to transmit a multiplicity of commands related to managing usage of a screen in accordance with one or more rules, the multiplicity of commands sent at intervals during an applicability time period of a rule; and a receiver operatively connected to the screen, the receiver configured to receive the commands from the transmitter and apply the commands to the screen, thereby managing usage of the screen for the applicability time period of the rule, wherein the transmitter and the receiver communicate with each other using authenticated communication.

Abstract: A computer-implemented method and apparatus for determining location, the method comprising: receiving a first sequence of kinematic values related to a route of an image appearing in captured pictures; receiving a second sequence of kinematic values related to a series of readings from at least one inertial sensor received from a mobile device; determining a matching measure between the first sequence of kinematic values and the second sequence of kinematic values; and associating an identifier associated with the mobile device with a location determined from the captured pictures.

Abstract: A computer-implemented method and apparatus for determining location, the method comprising: receiving a first sequence of kinematic values related to a route of an image appearing in captured pictures; receiving a second sequence of kinematic values related to a series of readings from at least one inertial sensor received from a mobile device; determining a matching measure between the first sequence of kinematic values and the second sequence of kinematic values; and associating an identifier associated with the mobile device with a location determined from the captured pictures.