A multi-mode ring scanner (MMRS) has a ring unit for wearing on a finger. The MMRS optionally has a wrist unit coupled to the ring unit, such as via a cable. The MMRS optionally communicates wirelessly with a computing device. The ring unit has one or more scanners (such as an optical scanner or an RFID tag reader). The ring unit optionally has two paddle switches for activation by inward pressure from fingers adjacent to the finger. The two switches enable specifying operation of the MMRS in a plurality of modes and/or to communicate a plurality of information codes to the computing device. The computing device is optionally enabled to assign a function to each combination of activation of the two switches. A scanning system including the MMRS optionally provides feedback to a user based on feedback from a host processor.

A system and method for performing a package status check are provided, including a scanner for use in a surgical field and having an antenna for emitting a radio frequency detection field, the scanner including control circuitry configured to determine a predetermined quantity of sponges corresponding to a complete pack of sponges; count a number of sponges associated with the pack with the scanner prior to use of the sponges in a surgical field; and issue an alert when a number of counted sponges does not match the predetermined quantity corresponding to the complete pack. The system and method may include the control circuitry configured to determine whether a sponge has been re-scanned or is unknown by comparing detected information with previously detected information prior.

A system and method for performing a package status check are provided, including a scanner for use in a surgical field and having an antenna for emitting a radio frequency detection field, the scanner including control circuitry configured to determine a predetermined quantity of sponges corresponding to a complete pack of sponges; count a number of sponges associated with the pack with the scanner prior to use of the sponges in a surgical field; and issue an alert when a number of counted sponges does not match the predetermined quantity corresponding to the complete pack. The system and method may include the control circuitry configured to determine whether a sponge has been re-scanned or is unknown by comparing detected information with previously detected information prior.

A system and method for performing a package status check are provided, including a scanner for use in a surgical field and having an antenna for emitting a radio frequency detection field, the scanner including control circuitry configured to determine a predetermined quantity of sponges corresponding to a complete pack of sponges; count a number of sponges associated with the pack with the scanner prior to use of the sponges in a surgical field; and issue an alert when a number of counted sponges does not match the predetermined quantity corresponding to the complete pack. The system and method may include the control circuitry configured to determine whether a sponge has been re-scanned or is unknown by comparing detected information with previously detected information prior.

A system and method for performing a package status check are provided, including a scanner for use in a surgical field and having an antenna for emitting a radio frequency detection field, the scanner including control circuitry configured to determine a predetermined quantity of sponges corresponding to a complete pack of sponges; count a number of sponges associated with the pack with the scanner prior to use of the sponges in a surgical field; and issue an alert when a number of counted sponges does not match the predetermined quantity corresponding to the complete pack. The system and method may include the control circuitry configured to determine whether a sponge has been re-scanned or is unknown by comparing detected information with previously detected information prior.

A system and method for performing package status check are provided, including a scanner for use in a surgical field and having a circuit and an antenna for emitting a radio frequency detection field, the scanner further including control circuitry configured to determine a predetermined quantity of sponges corresponding to a complete pack of sponges; count a number of sponges associated with the pack with the scanner prior to use of the sponges in a surgical field; and issue an alert when a number of counted sponges does not match the predetermined quantity corresponding to the complete pack. The system and method may include the control circuitry configured to determine whether a sponge has been re-scanned or is unknown by comparing detected information with previously detected information prior.

A system and method for performing package status check are provided, including a scanner for use in a surgical field and having a circuit and an antenna for emitting a radio frequency detection field, the scanner further including control circuitry configured to determine a predetermined quantity of sponges corresponding to a complete pack of sponges; count a number of sponges associated with the pack with the scanner prior to use of the sponges in a surgical field; and issue an alert when a number of counted sponges does not match the predetermined quantity corresponding to the complete pack. The system and method may include the control circuitry configured to determine whether a sponge has been re-scanned or is unknown by comparing detected information with previously detected information prior.

Generally discussed herein are techniques, software, apparatuses, and systems configured for presenting information to a user through multiple primary user interfaces. In one or more embodiments, a method can include providing first data to a first primary user interface that causes the first primary user interface to provide a first view of an application state of a software application, providing second data to a second primary user interface that causes the second primary user interface to provide a second view of the application state, changing the application state to a new application state, and in response to changing the application state, providing data to the first and second view modules so as to cause the first primary user interface to provide a first view of the new application state and the second primary user interface to provide a second view of the new application state.

Generally discussed herein are techniques, software, apparatuses, and systems configured for presenting information to a user through multiple primary user interfaces. In one or more embodiments, a method can include providing first data to a first primary user interface that causes the first primary user interface to provide a first view of an application state of a software application, providing second data to a second primary user interface that causes the second primary user interface to provide a second view of the application state, changing the application state to a new application state, and in response to changing the application state, providing data to the first and second view modules so as to cause the first primary user interface to provide a first view of the new application state and the second primary user interface to provide a second view of the new application state.

An authentication method involves comparing a 2D description of an authentication device, referred to as a subsequent description, with an original 2D description by choosing, from several previously established original 2D descriptions, a 2D description established from a point of view similar to the one used to establish the subsequent 2D description. Advantageously, the optical characteristics of the authentication device vary so little when it is viewed from neighboring points of view that the device can be recognized from most of the points of view, and the original 2D descriptions have been established from neighboring points of view, which form a substantially continuous domain. In an improved version, a three-dimensional description of the authentication device, referred to as a 3D description, is reconstructed from several original 2D descriptions, which makes it possible to predict the appearance thereof from a plurality of different points of view.