Abstract: A method to charge a battery pack including a plurality of cells connected in parallel, the method including setting a plurality of set cell charging current, a set cell charging current for each cell of the battery pack; charging the battery back with a total current from a single current source; sensing a plurality of cell currents which flows through each cell of the battery pack; comparing a value proportional to each set cell charging current with a value proportional to the cell current for the same cell; and modulating each cell current on the basis of the comparison for the same cell. A battery charging circuit for a battery pack is also provided.

Abstract: A handle or accessory is attached to mobile computers or similar devices. The handle or accessory includes the use of a wireless trigger employing a low energy technology. This trigger does not need a power source since it is provided with a piezoelectric element connected to a power management circuit. The mechanical energy applied from pressing a button is harvested and transformed in electricity and used to enable the low energy technology to communicate wirelessly with a mobile computer or similar device. Different pairing methods can be implemented in the invention to connect the handle or accessory with the mobile computer or similar device.

Abstract: Systems and methods for an accessory that includes a supplemental display that can be used to present images, text, and other information. The accessory may include a strap that may be physically coupled along one surface of a hand-held processor-based terminal. A gap may be provided between the strap and the surface of the hand-held processor-based terminal that may be sized and dimensioned to receive a limb of a user. The supplemental display may be positioned along one surface of the strap to be visible when the limb of the user is inserted into the gap. The accessory may include a user input device, such as a user actuatable button, that may be used to receive inputs from the user. Such inputs may be used to control the images presented on the supplemental display and/or to trigger functions or processes on the hand-held processor-enable terminal.

Abstract: A handle or accessory is attached to mobile computers or similar devices. The handle or accessory includes the use of a wireless trigger employing a low energy technology. This trigger does not need a power source since it is provided with a piezoelectric element connected to a power management circuit. The mechanical energy applied from pressing a button is harvested and transformed in electricity and used to enable the low energy technology to communicate wirelessly with a mobile computer or similar device. Different pairing methods can be implemented in the invention to connect the handle or accessory with the mobile computer or similar device.

Abstract: Systems and methods for an accessory that includes a supplemental display that can be used to present images, text, and other information. The accessory may include a strap that may be physically coupled along one surface of a hand-held processor-based terminal. A gap may be provided between the strap and the surface of the hand-held processor-based terminal that may be sized and dimensioned to receive a limb of a user. The supplemental display may be positioned along one surface of the strap to be visible when the limb of the user is inserted into the gap. The accessory may include a user input device, such as a user actuatable button, that may be used to receive inputs from the user. Such inputs may be used to control the images presented on the supplemental display and/or to trigger functions or processes on the hand-held processor-enable terminal.

Abstract: A method to charge a battery pack including a plurality of cells connected in parallel, the method including setting a plurality of set cell charging current, a set cell charging current for each cell of the battery pack; charging the battery back with a total current from a single current source; sensing a plurality of cell currents which flows through each cell of the battery pack; comparing a value proportional to each set cell charging current with a value proportional to the cell current for the same cell; and modulating each cell current on the basis of the comparison for the same cell. A battery charging circuit for a battery pack is also provided.

Abstract: A customer terminal of a “self-scanning shopping” system, which is configured to store at least one shopping session in a non volatile memory, includes a main processor, a product code reader, a location for non volatile storage of an open shopping session indicator and/or an identifier, either direct or indirect, of a shopping session, and a supervisor circuit. In a working operating state, the main processor periodically sends a heartbeat to the supervisor circuit. The supervisor circuit commands a reset of the main processor when, from the lack of receipt of the heartbeat, it detects a non working operating state of the main processor. The main processor, upon reset, checks whether there is an open shopping session based on the contents of said memory location and in the affirmative case restores said shopping session.

Abstract: A customer terminal of a “self-scanning shopping” system, which is configured to store at least one shopping session in a non volatile memory, includes a main processor, a product code reader, a location for non volatile storage of an open shopping session indicator and/or an identifier, either direct or indirect, of a shopping session, and a supervisor circuit. In a working operating state, the main processor periodically sends a heartbeat to the supervisor circuit. The supervisor circuit commands a reset of the main processor when, from the lack of receipt of the heartbeat, it detects a non working operating state of the main processor. The main processor, upon reset, checks whether there is an open shopping session based on the contents of said memory location and in the affirmative case restores said shopping session.