A spatial event map system including server-side data processor that maintains a spatial event map which locates events in a workspace. The spatial event map includes a log of events, entries in the log having a location of an object of the event in the workspace and a time. The system includes logic to send messages including a location of an object of the event in the workspace and a time of the event to client-side network nodes; and to receive messages identifying events that create or modify an object, and to add corresponding entries to the log of events. The events can include history events that are sent to the other client-side network nodes, and added to the log for the corresponding history events, and ephemeral events that are sent to other client-side network nodes without adding corresponding entries in the log.

Example systems, apparatus, and methods receive audio information including a plurality of frames from a source device, wherein each frame of the plurality of frames includes one or more audio samples and a time stamp indicating when to play the one or more audio samples of the respective frame. In an example, the time stamp is updated for each of the plurality of frames using a time differential value determined between clock information received from the source device and clock information associated with the device. The updated time stamp is stored for each of the plurality of frames, and the audio information is output based on the plurality of frames and associated updated time stamps. A number of samples per frame to be output is adjusted based on a comparison between the updated time stamp for the frame and a predicted time value for play back of the frame.

Example systems, apparatus, and methods receive audio information including a plurality of frames from a source device, wherein each frame of the plurality of frames includes one or more audio samples and a time stamp indicating when to play the one or more audio samples of the respective frame. In an example, the time stamp is updated for each of the plurality of frames using a time differential value determined between clock information received from the source device and clock information associated with the device. The updated time stamp is stored for each of the plurality of frames, and the audio information is output based on the plurality of frames and associated updated time stamps. A number of samples per frame to be output is adjusted based on a comparison between the updated time stamp for the frame and a predicted time value for play back of the frame.

Playback devices may receive video content and an age of a playlist associated with the video content. A playback device may use the age of the playlist to schedule output of video fragments of the video content. The playback device may adjust the output of the video content until an actual output time of a video fragment is substantially the same as the scheduled output time for the video fragment.

Playback devices may receive video content and an age of a playlist associated with the video content. A playback device may use the age of the playlist to schedule output of video fragments of the video content. The playback device may adjust the output of the video content until an actual output time of a video fragment is substantially the same as the scheduled output time for the video fragment.

A method includes: When a first electronic device does not initiate synchronization with a second electronic device, the first electronic device detects a first operation of a user. In response to the first operation, the first electronic device adds first photo information to a first shared album of the first electronic device. When the first electronic device initiates synchronization with the second electronic device, the first electronic device sends, to the second electronic device, a first request message for adding the first photo information. In this way, after receiving a first request response message that is sent by the second electronic device and that is used for refusing to add the first photo information, the first electronic device deletes the first photo information from the first shared album.

A method includes: When a first electronic device does not initiate synchronization with a second electronic device, the first electronic device detects a first operation of a user. In response to the first operation, the first electronic device adds first photo information to a first shared album of the first electronic device. When the first electronic device initiates synchronization with the second electronic device, the first electronic device sends, to the second electronic device, a first request message for adding the first photo information. In this way, after receiving a first request response message that is sent by the second electronic device and that is used for refusing to add the first photo information, the first electronic device deletes the first photo information from the first shared album.

The present technology provides a system, method and computer readable medium for steering a content request among plurality of cache servers based on multi-level assessment of content popularity. In some embodiments a three levels of popularity may be determined comprising popular, semi-popular and unpopular designations for the queried content. The processing of the query and delivery of the requested content depends on the aforementioned popularity level designation and comprises a acceptance of the query at the edge cache server to which the query was originally directed, rejection of the query and re-direction to a second edge cache server or redirection of the query to origin server to thereby deliver the requested content. The proposed technology results in higher hit ratio for edge cache clusters by steering requests for semi-popular content to one or more additional cache servers while forwarding request for unpopular content to origin server.

Native activity tracking using credential and authentication management in scalable data networks is described, including detecting a request from an extension installed on a browser to access a data network, initiating another request from the extension to a server to retrieve authentication data to access the data network, transferring from the server to the extension the authentication data and an instruction to the extension to generate a further request, transmitting the further request to the data network from the browser, the request comprising the authentication data from the server without manual input of the authentication data, presenting an overlay on the browser, the overlay being configured to indicate a login status associated with the data network, and storing one or more portions of data transferred between the data network and the browser, the storing being performed by the extension if access to the data network has been provided to the browser in response to the request.

Native activity tracking using credential and authentication management in scalable data networks is described, including detecting a request from an extension installed on a browser to access a data network, initiating another request from the extension to a server to retrieve authentication data to access the data network, transferring from the server to the extension the authentication data and an instruction to the extension to generate a further request, transmitting the further request to the data network from the browser, the request comprising the authentication data from the server without manual input of the authentication data, presenting an overlay on the browser, the overlay being configured to indicate a login status associated with the data network, and storing one or more portions of data transferred between the data network and the browser, the storing being performed by the extension if access to the data network has been provided to the browser in response to the request.