Abstract: According to an embodiments, a system and method for managing electromagnetic interference in an electronic charging unit is disclosed. The operating frequencies of multiple electronic devices interfacing with the electronic charging unit may be dynamically altered to manage electromagnetic interference from each electronic device such that the aggregated electromagnetic interference from all electronic devices remains within predetermined limits.

Abstract: According to an embodiments, a system and method for managing electromagnetic interference in an electronic charging unit is disclosed. The operating frequencies of multiple electronic devices interfacing with the electronic charging unit may be dynamically altered to manage electromagnetic interference from each electronic device such that the aggregated electromagnetic interference from all electronic devices remains within predetermined limits.

Abstract: A device wirelessly receives first and second identifiers contemporaneously from a network. The first identifier indicates that the network operates in a first mode that is not secure. The second identifier indicates that the network operates in a second mode that is secure. In response to wirelessly receiving the first and second identifiers, the device wirelessly connects to the network in the first mode to determine whether the network accepts the device for the second mode, irrespective of whether the network previously accepted the device for the second mode, and irrespective of whether the device already stores authentication information for the second mode. In response to determining that the network accepts the device for the second mode, the device wirelessly connects to the network in the second mode to securely communicate with the network in response to the authentication information.

Abstract: A method for associating handheld calculators with a network host system of a classroom network that includes receiving a service set identifier (SSID) of the classroom network by a handheld calculator, wherein the SSID includes a network mode indicator, and operating the handheld calculator according to the network mode indicator. The method may also include operating the handheld calculator in a configuration mode in which the handheld calculator sends a request for association to the network host system, wherein the request includes a unique identifier of the first handheld calculator, and acceptance of the request by the network host system, wherein authentication information for the handheld calculator is stored by the network host system to indicate that the first handheld calculator is associated with the classroom network.

Abstract: A device wirelessly receives first and second identifiers contemporaneously from a network. The first identifier indicates that the network operates in a first mode that is not secure. The second identifier indicates that the network operates in a second mode that is secure. In response to wirelessly receiving the first and second identifiers, the device wirelessly connects to the network in the first mode to determine whether the network accepts the device for the second mode, irrespective of whether the network previously accepted the device for the second mode, and irrespective of whether the device already stores authentication information for the second mode. In response to determining that the network accepts the device for the second mode, the device wirelessly connects to the network in the second mode to securely communicate with the network in response to the authentication information.

Abstract: A method for associating handheld calculators with a network host system of a classroom network that includes receiving a service set identifier (SSID) of the classroom network by a handheld calculator, wherein the SSID includes a network mode indicator, and operating the handheld calculator according to the network mode indicator. The method may also include operating the handheld calculator in a configuration mode in which the handheld calculator sends a request for association to the network host system, wherein the request includes a unique identifier of the first handheld calculator, and acceptance of the request by the network host system, wherein authentication information for the handheld calculator is stored by the network host system to indicate that the first handheld calculator is associated with the classroom network.