Abstract: Systems, methods, and computer-readable media are provided for dividing and merging online content sharing environments such as, for example, online chat rooms. An online content sharing environment may have a group of user profiles associated therewith, some subgroup of which may be exchanging message content within the online content sharing environment at any given time. If an amount of message data traffic being exchanged and/or a number of user profiles exchanging messages exceeds a corresponding threshold value, the online content sharing environment may be divided into two or more sub-environments. Respective sub-groups of user profiles may then be identified based on association criteria and associated with the various sub-environments.

Abstract: Various technologies described herein pertain to managing and accessing a community Wi-Fi network. The community Wi-Fi network can include sharer computing devices in differing local networks that share respective network bandwidth capacities with consumer computing devices. Feedback information pertaining to network bandwidth capacity available at different geographic locations covered by the community Wi-Fi network can be collected and evaluated to enable generation of maps for visualizing coverage of the community Wi-Fi network. A consumer computing device can display a map that includes visual information pertaining to the geographic coverage of the community Wi-Fi network relative to a geographic location of the consumer computing device.

Abstract: Devices, methods, and systems for provisioning network credentials onto a device using audible commands. In some instances, the device is a headless device without a graphical user interface. The device may include a limited number of speech models and phrases pre-programmed onto the device to enable the device to query a user to enter network credentials and have a dialog type interface with the user using local speech recognition techniques. Once the network credentials are entered and the device connects to the user's network, the device may change modes and limit the local speech recognition techniques. In this respect, the device may send audio input to a more powerful remote device for processing.

Abstract: Various technologies described herein pertain to managing and accessing a community Wi-Fi network. The community Wi-Fi network can include sharer computing devices in differing local networks that share respective network bandwidth capacities with consumer computing devices. Feedback information pertaining to network bandwidth capacity available at different geographic locations covered by the community Wi-Fi network can be collected and evaluated to enable generation of maps for visualizing coverage of the community Wi-Fi network. A consumer computing device can display a map that includes visual information pertaining to the geographic coverage of the community Wi-Fi network relative to a geographic location of the consumer computing device.

Abstract: Various technologies described herein pertain to managing and accessing a community Wi-Fi network. The community Wi-Fi network can include sharer computing devices in differing local networks that share respective network bandwidth capacities with consumer computing devices. Feedback information pertaining to network bandwidth capacity available at different geographic locations covered by the community Wi-Fi network can be collected and evaluated to enable generation of maps for visualizing coverage of the community Wi-Fi network. A consumer computing device can display a map that includes visual information pertaining to the geographic coverage of the community Wi-Fi network relative to a geographic location of the consumer computing device.

Abstract: Embodiments control submission of crowdsourced data from a computing device to a cloud service. The cloud service receives a packet from the computing device having collected data and a single-use data tag associated therewith. The single-use data tag represents one of a threshold quantity of single-use data tags issued to the computing device. The cloud service validates the single-use data tag in the received packet by, for example, searching for the single-use data tag in a tag store maintained by the cloud service. The collected data from the received packet is stored by the cloud service based on the validation. After validation, the tag store is updated to prevent re-use of the single-use data tag. In some embodiments, the cloud service is a location service receiving crowdsourced beacon fingerprint data from a plurality of mobile computing devices.

Abstract: Various technologies described herein pertain to configuring an access point in a local network for operation in a community Wi-Fi network. The community Wi-Fi network includes access points in differing local networks that share respective network bandwidth capacities with member computing devices of the community Wi-Fi network. A request to join the access point to the community Wi-Fi network is transmitted from the access point to a community aggregation system. Responsive to the request, the community aggregation system transmits a firmware update to the access point. The access point installs the firmware update in memory of the access point. Moreover, responsive to installation of the firmware update, the access point can share network bandwidth capacity with the member computing devices of the community Wi-Fi network. Further, the community aggregation system supports transparent handoffs between access points in to the community Wi-Fi network.

Abstract: Various technologies described herein pertain to configuring an access point in a local network for operation in a community Wi-Fi network. The community Wi-Fi network includes access points in differing local networks that share respective network bandwidth capacities with member computing devices of the community Wi-Fi network. A request to join the access point to the community Wi-Fi network is transmitted from the access point to a community aggregation system. Responsive to the request, the community aggregation system transmits a firmware update to the access point. The access point installs the firmware update in memory of the access point. Moreover, responsive to installation of the firmware update, the access point can share network bandwidth capacity with the member computing devices of the community Wi-Fi network. Further, the community aggregation system supports transparent handoffs between access points in to the community Wi-Fi network.

Abstract: Various technologies described herein pertain to managing and accessing a community Wi-Fi network. The community Wi-Fi network can include sharer computing devices in differing local networks that share respective network bandwidth capacities with consumer computing devices. Feedback information pertaining to network bandwidth capacity available at different geographic locations covered by the community Wi-Fi network can be collected and evaluated to enable generation of maps for visualizing coverage of the community Wi-Fi network. A consumer computing device can display a map that includes visual information pertaining to the geographic coverage of the community Wi-Fi network relative to a geographic location of the consumer computing device.

Abstract: Various technologies described herein pertain to configuring an access point in a local network for operation in a community Wi-Fi network. The community Wi-Fi network includes access points in differing local networks that share respective network bandwidth capacities with member computing devices of the community Wi-Fi network. A request to join the access point to the community Wi-Fi network is transmitted from the access point to a community aggregation system. Responsive to the request, the community aggregation system transmits a firmware update to the access point. The access point installs the firmware update in memory of the access point. Moreover, responsive to installation of the firmware update, the access point can share network bandwidth capacity with the member computing devices of the community Wi-Fi network. Further, the community aggregation system supports transparent handoffs between access points in to the community Wi-Fi network.

Abstract: Embodiments control submission of crowdsourced data from a computing device to a cloud service. The cloud service receives a packet from the computing device having collected data and a single-use data tag associated therewith. The single-use data tag represents one of a threshold quantity of single-use data tags issued to the computing device. The cloud service validates the single-use data tag in the received packet by, for example, searching for the single-use data tag in a tag store maintained by the cloud service. The collected data from the received packet is stored by the cloud service based on the validation. After validation, the tag store is updated to prevent re-use of the single-use data tag. In some embodiments, the cloud service is a location service receiving crowdsourced beacon fingerprint data from a plurality of mobile computing devices.

Abstract: A method and apparatus determines if a location fix received by a mobile station using a non-GPS location techniques is accurate. Location results obtained using the non-GPS location technique or techniques are treated as accurate if they are verified as being within an error margin obtained from a trusted source of location information such as a GPS positioning system. Non-GPS Location information may be obtained from a signal transmitted by the base station, which signal includes the base station location. The non-GPS location information may also be obtained from a backend service associated with the wireless network that includes the base station.

Abstract: The present embodiments related to a device having a device element to which a high voltage can be applied. The device is provided with at least one additional conducting element which is disposed, embodied and connected in such a way that the element is assigned a defined potential value and a change to the electric field generated by the high voltage in the sense of a more favorable field distribution is effected by means of position, shape and potential value. According to the invention, maximum loads on switching elements are avoided and undesirable phenomena such as voltage breakdowns or flow voltages are counteracted as a result of the more favorable field distribution.

Abstract: A method and apparatus determines if a location fix received by a mobile station using a non-GPS location techniques is accurate. Location results obtained using the non-GPS location technique or techniques are treated as accurate if they are verified as being within an error margin obtained from a trusted source of location information such as a GPS positioning system. Non-GPS Location information may be obtained from a signal transmitted by the base station, which signal includes the base station location. The non-GPS location information may also be obtained from a backend service associated with the wireless network that includes the base station.

Abstract: A computer tomography device is provided. The computer tomography device includes a rotating part and a stationary part. The rotating part has an X-ray tube for radiographing an object to be examined with X-rays and a detector for detecting the X-rays transmitted through the object. A stationary part has a data processing device for evaluating the detected measuring results, and a transmitter for supplying the X-ray tube and/or the detector and other rotating consumers with supply voltage by contactless transmission of electric power between the stationary and the rotating part. The transmitter is designed for contactless data transmission between the stationary part and the rotating part in addition to the contactless transmission of electrical power.

Abstract: A computer tomography device is provided. The computer tomography device includes a rotating part and a stationary part. The rotating part has an X-ray tube for radiographing an object to be examined with X-rays and a detector for detecting the X-rays transmitted through the object. A stationary part has a data processing device for evaluating the detected measuring results, and a transmitter for supplying the X-ray tube and/or the detector and other rotating consumers with supply voltage by contactless transmission of electric power between the stationary and the rotating part. The transmitter is designed for contactless data transmission between the stationary part and the rotating part in addition to the contactless transmission of electrical power.

Abstract: The invention relates to a gantry for an x-ray device. According to the invention at least one screening device used to reduce interactions with electromagnetic disturbance fields is provided for the at least one transmitter for the non-contact power or signal transmission between a stationary part and a rotatable part of the gantry.

Abstract: The disclosed, embodiments relate to a high-voltage supply (11, 13, 23) for an X-ray device. The X-ray device comprises an X-ray tube (15) and a high voltage generator(1), for generation of the high voltage necessary for operating the X-ray tube (15). The high voltage supply (11, 13, 23) comprises electrically-conducting lines (11, 13), for the connection of the high voltage generator to the X-ray tube (15). Each of the lines (11, 13) comprises one end which may be connected to the high voltage generator (1) and a further end which may be connected to the X-ray tube (15). At least one end of at least one of the lines (11, 13) may be connected to an electrical terminal resistor (39) which may be arranged between the line (11, 13) and the high voltage generator (1), or between the line (11, 13) and the X-ray tube (15).

Abstract: A circuit arrangement for generating an X-ray tube voltage is described, wherein a switching device, connected downstream of a voltage controller (Gsu) and a oscillating current controller (Gri), operable to compare a first controlling variable value (Yu(t)) and a second controlling variable value (Yz(t)) and is operable to send the lesser of the first and second controlling variable values (Yu(t) and Yz(t) onward as a resultant controlling variable value (Y(t)) to the inverse rectifier circuit (Gsi).

Abstract: X-ray apparatus has a d.c.-a.c. converter circuit supplied with energy that is connected via a line connection to a high-voltage transformer supplying the high-frequency operating voltage to an X-ray tube. The line connection has a first and a second conductors that are insulated from one another and are disposed close to one another for achieving a low line inductance. These conductors have ratio of radius to conductor thickness such that a low ohmic impedance is established.