Abstract: Described are systems, methods, and apparatus that enable constraint based communications between two or more devices. For example, a first user of a first device may submit a communication request to establish a communication session with a second user and provide a constraint for that communication session, such as a time-limit (e.g., limit the communication session to five minutes). In such an example, if the second user accepts the communication request with the constraint, a communication session is established and the system monitors the communication session to determine when a condition corresponding to the constraint has been satisfied. When the condition is satisfied, the communication session is terminated by the system.

Abstract: Described are systems, methods, and apparatus that enable constraint based communications between two or more devices. For example, a first user of a first device may submit a communication request to establish a communication session with a second user and provide a constraint for that communication session, such as a time-limit (e.g., limit the communication session to five minutes). In such an example, if the second user accepts the communication request with the constraint, a communication session is established and the system monitors the communication session to determine when a condition corresponding to the constraint has been satisfied. When the condition is satisfied, the communication session is terminated by the system.

Abstract: An unauthorized-product detection system may compare data representing various authentication markers of items presumed to have been produced or sourced by a particular entity with stored data representing valid authentication markers of items produced or sourced by the particular entity. The authentication markers may represent inherent physical characteristics of the items or their packaging, or may be generated and applied to the items or their packaging to facilitate counterfeit detection and/or for other purposes. The data (some of which may be encrypted) may be captured using high-resolution cameras, scanners, or other devices, and then communicated to the unauthorized-product detection system for analysis. The system may maintain a data store of data representing captured or valid authentication markers and may store tracking information reflecting the use of various authentication markers.

Abstract: An unauthorized-product detection system may compare data representing various authentication markers of items presumed to have been produced or sourced by a particular entity with stored data representing valid authentication markers of items produced or sourced by the particular entity. The authentication markers may represent inherent physical characteristics of the items or their packaging, or may be generated and applied to the items or their packaging to facilitate counterfeit detection and/or for other purposes. The data (some of which may be encrypted) may be captured using high-resolution cameras, scanners, or other devices, and then communicated to the unauthorized-product detection system for analysis. The system may maintain a data store of data representing captured or valid authentication markers and may store tracking information reflecting the use of various authentication markers.