Abstract: Providing analysis of exposure of users to content without the use of personally identifiable information (PII) is described. Initially, first user activity data is obtained from a server associated with a collection service. The first user activity data comprises a first unique identifier (ID) deterministically created based on an Internet protocol (IP) address of a first entity using a first one-way function. Next, second user activity data is obtained from a service provider. The second user activity data comprises a second unique ID deterministically created based on PII of a second entity using a second one-way function. It is determined whether the first unique ID is the same as the second unique ID, and responsive to that determination, the first and second user activity data are continuously aggregated such that a trend is determined in real-time and analysis of the aggregated user activity data is performed and reported in compliance with mandated legal or policy privacy provisions.

Abstract: A copy of a request for content from a content provider is initially received from a client device. The copy of the request indicates a unique identifier of the client device, an originating network address of the client device, and a destination network address of the content provider. The client device is associated with a network provider based on the originating network address. It is determined that the network provider belongs to a predetermined class. Activation of a private network switch is enabled on the client device to provide an encrypted connection between the client device and a private network server before the request is forwarded to the content provider based on the determination that the network provider belongs to the predetermined class.

Abstract: A data recovery system (apparatus) includes first management hardware at a first location and second management hardware at a second location. The first management hardware includes or executes a corresponding primary order manager to process first orders. The second management hardware includes or executes a primary manager to process second orders. Each of the first management hardware and the second management hardware includes auxiliary resources to execute functions on behalf of each other in the event of a failure. For example, the first management hardware executes an auxiliary order manager to process the second orders during conditions in which the primary order manager of the second management hardware is unable to process the second orders; the second management hardware executes an auxiliary order manager to process the first orders during conditions in which the primary order manager of the first management hardware is unable to process the first orders.

Abstract: Systems, methods, and computer-readable medium are provided for identifying content displayed by a media device and associating the content with demographics of one or more users. An indication to capture an image of the content displayed by the media device is initially received. The image of the content is then captured and stored. One or more image fingerprints in the image of the content are identified. The monitoring device transmits the one or more image fingerprints, a timestamp of the time at which the image was captured, and an identifier of the monitoring device to a server. The server compares the one or more image fingerprints to fingerprints in a database to identify the content displayed by the media device. The identity of the content is then associated with demographic information of the one or more users. A report of the content viewership of the content displayed by the media device is then generated.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for audience measurement using a mobile device accessory are disclosed. In one aspect, a mobile device accessory includes a power source configured to provide power to the mobile device. The mobile device accessory further includes an audio capturing device configured to capture an ambient sound, and a microprocessor coupled to the audio capturing device and configured to identify distinctive features of the ambient sound and generate a digital representation of the ambient sound. The mobile device accessory further includes a memory coupled to the microprocessor and configured to store at least the digital representation, and a transmitter coupled to the microprocessor and configured to transmit at least the digital representation.

Abstract: Multi-functional materials for use in reversible, high-capacity hydrogen separation and/or storage are described. Also described are systems incorporating the materials. The multi-functional materials combine a hydrogen absorbing material with a high-efficiency and anon-contact energy absorbing material in a composite nanoparticle. The non-contact energy absorbing material include magnetic and/or plasmonic materials. The magnetic or plasmonic materials of the composite nanoparticles can provide localized heating to promote release of hydrogen from the hydrogen storage component of the composite nanoparticles.

Abstract: In general, the systems, components, methods, and techniques are provided for gathering, recording, and developing accurate user demographics attributed to users viewing content across different media platforms while protecting user privacy and providing compliance with legal or policy mandated privacy provisions.

Abstract: The present disclosure relates generally to monitoring internet usage on home networks of panelist users. One example method includes, after receiving informed consent from a user, identifying the user's home network including one or more devices and a gateway configured to receive network traffic from the devices and send the received network traffic to an external network; configuring the home network to send network traffic from the devices to a measurement device connected to the gateway; and after configuring the home network, monitoring, at the measurement device, network traffic received from the devices on the home network.

Abstract: Requests for data received from multiple subscribers are accessed. At least some of the requests for data originate from one or more addresses associated with a particular subscriber of the multiple subscribers. The accessed requests for data are organized into sets of requests based on the one or more addresses such that a set of requests corresponds to the particular subscriber, and a characteristic of the particular subscriber is determined based on aspects of the set of requests corresponding to the particular subscriber and a behavior model.

Abstract: A first set of data including a first tracking identifier for a first webpage component and a destination address for the first webpage component is accessed. A second set of data that includes an address for retrieving a second webpage component, is accessed. The address includes a second tracking identifier. Whether the second tracking identifier is the same as the first tracking identifier is determined. The second webpage component is associated with the destination address when the second tracking identifier is the same as the first tracking identifier.

Abstract: A copy of a request for content from a content provider is initially received from a client device. The copy of the request indicates a unique identifier of the client device, an originating network address of the client device, and a destination network address of the content provider. The client device is associated with a network provider based on the originating network address. It is determined that the network provider belongs to a predetermined class. Activation of a private network switch is enabled on the client device to provide an encrypted connection between the client device and a private network server before the request is forwarded to the content provider based on the determination that the network provider belongs to the predetermined class.

Abstract: A first set of data including a first tracking identifier for a first webpage component and a destination address for the first webpage component is accessed. A second set of data that includes an address for retrieving a second webpage component, is accessed. The address includes a second tracking identifier. Whether the second tracking identifier is the same as the first tracking identifier is determined. The second webpage component is associated with the destination address when the second tracking identifier is the same as the first tracking identifier.

Abstract: A first set of data including a first tracking identifier for a first webpage component and a destination address for the first webpage component is accessed. A second set of data that includes an address for retrieving a second webpage component, is accessed. The address includes a second tracking identifier. Whether the second tracking identifier is the same as the first tracking identifier is determined. The second webpage component is associated with the destination address when the second tracking identifier is the same as the first tracking identifier.

Abstract: A method of testing a system having at least one electrochemical sensor for detecting an analyte gas within a housing of the system, the housing having an inlet, the at least one electrochemical sensor including an electrically active working electrode in fluid connection with the inlet of the system, the method including biasing the electrically active working electrode at a first potential, to detect the analyte gas and biasing the electrically active working electrode at a second potential, different from the first potential, such that the at least one electrochemical sensor is sensitive to a driving force created in the vicinity of the inlet to test at least one transport path of the system. The method may further include creating the driving force in the vicinity of the inlet of the housing of the system and measuring a response of the electrically active working electrode to the driving force.

Abstract: A method of operating a system having at least one sensor for detecting an analyte gas in an ambient atmosphere and a sensor responsive to oxygen includes providing a volume in fluid connection with the sensor responsive to oxygen. The volume has an open state in which the volume is in fluid connection with the ambient atmosphere and at least a first restricted state in which entry of molecules from the ambient atmosphere into the volume is restricted as compared to the open state. The method further includes placing the volume in the open state, subsequently placing the volume in the first restricted state, and measuring a dynamic output of the sensor responsive to oxygen while the volume is in the first restricted state. The dynamic output provides an indication of the status of one or more transport paths of the system.

Abstract: The present disclosure relates generally to monitoring internet usage on home networks of panelist users. One examples method includes after determining that a user has accepted an offer to modify a home network of the user to monitor network traffic generated by devices connected to the home network, identifying a gateway device on the home network configured to receive network traffic from devices connected to the home network and communicate with an external network on behalf of the devices; determining that the gateway device is operable to be modified over the home network to include a monitoring application; and in response to determining that the gateway device is operable to be modified, modifying the gateway device over the home network to include the monitoring application.

Abstract: A space solar power system that has sun-tracking curved reflectors, such as off-axis parabolic reflectors, a secondary reflector, and a power conversion module for converting the sunlight into microwave energy and transmit the energy to remote locations. The power conversion module can have a modular stepped conical shape, with additional radiator area configured in vertical sidewalls, horizontal radiator panels, or both. Hinged, fold-out units can house the microwave conversion electronics and the antenna for transmitting the microwave radiation to the remote ground station.

Abstract: An identifier associated with a client machine is accessed, and parameters that define a control group of client machines for a particular advertising campaign are accessed. The advertising campaign is associated with one or more standard advertisements. Whether the client machine is a member of the control group based on the identifier associated with the client machine and the parameters that define the control group is determined. If the determination of whether the client machine is a member of the control group indicates that the client machine is a member of the control group, a control advertisement is caused to be presented on the client machine. The control advertisement is an advertisement not associated with the advertising campaign.

Abstract: Requests for data received from multiple subscribers are accessed. At least some of the requests for data originate from one or more addresses associated with a particular subscriber of the multiple subscribers. The accessed requests for data are organized into sets of requests based on the one or more addresses such that a set of requests corresponds to the particular subscriber, and a characteristic of the particular subscriber is determined based on aspects of the set of requests corresponding to the particular subscriber and a behavior model.

Abstract: An airflow distribution system comprising an occupancy detector, a motorized damper, a ventilation sensor, and a controller; wherein said occupancy detector signals said motorized damper to open when a room is occupied and to close when a room is unoccupied; wherein said ventilation sensor signals said controller to reduce the speed of a fan when less volumetric airflow is needed; wherein said ventilation sensor signals said controller to increase the speed of a fan when more volumetric airflow is needed.