Abstract: A guest digital device joins a playback session hosted by a host digital device and synchronizes playback of digital media content with playback on the host digital device. This enables multiple users to listen to or view media at the same time on their respective devices. A time-based synchronization process may be used to initially synchronize playback of the guest digital device to the host digital device. If synchronization is lost, the device may record and analyze audio during playback and a fingerprint-based synchronization approach may be applied that detects a time offset between fingerprints in the analyzed audio. If synchronization is still not achieved, a watermark-based synchronization approach may be applied in which watermarks are actively injected into the audio and the time offsets between the watermarks is detected.

Abstract: A guest digital device joins a playback session hosted by a host digital device and synchronizes playback of digital media content with playback on the host digital device. This enables multiple users to listen to or view media at the same time on their respective devices. A time-based synchronization process may be used to initially synchronize playback of the guest digital device to the host digital device. If synchronization is lost, the device may record and analyze audio during playback and a fingerprint-based synchronization approach may be applied that detects a time offset between fingerprints in the analyzed audio. If synchronization is still not achieved, a watermark-based synchronization approach may be applied in which watermarks are actively injected into the audio and the time offsets between the watermarks is detected.

Abstract: Playback of an audio stream is synchronized on multiple connected digital devices by using synchronization fingerprints. Playback actions may furthermore be synchronized on all devices, such as skips and pauses. Furthermore, synchronization may be maintained even in the presence of variations in decoding speed, playback interruptions, and network disconnections. Synchronized playback of streamed audio content on multiple devices is achieved by devices compensating for time drifting induced by network instability and variable playback speed across master and guest devices to reduce the formation of echoes during playback.

Abstract: The present document describes a method for presenting modified information obtained from the internet on an application on a mobile device. The mobile device is set to communicate with the internet through a proxy server. A user of the mobile device is registered on a social network from which indexed search content specific to the user's connections on the social network are obtained. The method comprises: modifying, based on the indexed search content specific to the user's connections, an output for the application from an internet server to produce a modified output for the application; and sending the modified output for the application to the mobile device for presentation in the application on the mobile device.

Abstract: There is disclosed a method and system for presenting indexed search results from a social network, concurrently with customary search results returned by a search engine hosted on a website, to a user performing a search from a user interface of a user device using the search engine. The user is registered on the social network and has connections thereon. The method comprises: indexing data related to users registered on the social network to produce indexed data, the data obtained from the social network hosted on a website different from the website hosting the search engine; receiving a search query along with a user identifier; performing a search on the indexed data specific to the user's connections to obtain indexed search results specific to the user's connections on the social network; and returning to the user device the indexed search results for presentation on the user interface.

Abstract: There is described a method implemented on a social search server for presenting names of members of a social network who shared information about a commercial item to a user performing a search from a user interface of a user device. The user is registered on the social network and has connections thereon. The method comprises: indexing data representative of activities of the members on the social network; extracting commercial items from the indexed activity data; receiving a search query along with a user identifier; identifying a commercial item within the search query; using the search query and the user identifier, performing a search on the extracted commercial items specific to the user's connections to obtain names of members who shared information about the commercial item; and returning the names of the members who shared information about the commercial item to the user device.

Abstract: There is disclosed a method and system for presenting indexed search results from a social network, concurrently with customary search results returned by a search engine hosted on a website, to a user performing a search from a user interface of a user device using the search engine. The user is registered on the social network and has connections thereon. The method comprises: indexing data related to users registered on the social network to produce indexed data, the data obtained from the social network hosted on a website different from the website hosting the search engine; receiving a search query along with a user identifier; performing a search on the indexed data specific to the user's connections to obtain indexed search results specific to the user's connections on the social network; and returning to the user device the indexed search results for presentation on the user interface.

Abstract: There is described a method implemented on a social search server for presenting names of members of a social network who shared information about a commercial item to a user performing a search from a user interface of a user device. The user is registered on the social network and has connections thereon. The method comprises: indexing data representative of activities of the members on the social network; extracting commercial items from the indexed activity data; receiving a search query along with a user identifier; identifying a commercial item within the search query; using the search query and the user identifier, performing a search on the extracted commercial items specific to the user's connections to obtain names of members who shared information about the commercial item; and returning the names of the members who shared information about the commercial item to the user device.

Abstract: There is described a method and system for obtaining ranked search results including names of experts who are members of a social network and presenting the ranked search results to a user performing a search from a user interface of a user device. The user is registered on the social network and has connections thereon. The method comprises: indexing data representative of activities of the members on the social network to produce indexed activity data; receiving a search query relative to a subject along with a user identifier from the user device; using the search query and the user identifier, ranking members from the user's connections based on their activities on the social network related to the subject to obtain ranked experts for the subject; returning the names of ranked experts for the subject to the user device for presentation on the user interface.

Abstract: The present document describes a method for presenting modified information obtained from the internet on an application on a mobile device. The mobile device is set to communicate with the internet through a proxy server. A user of the mobile device is registered on a social network from which indexed search content specific to the user's connections on the social network are obtained. The method comprises: modifying, based on the indexed search content specific to the user's connections, an output for the application from an internet server to produce a modified output for the application; and sending the modified output for the application to the mobile device for presentation in the application on the mobile device.

Abstract: There is described a method and system for obtaining ranked search results including names of experts who are members of a social network and presenting the ranked search results to a user performing a search from a user interface of a user device. The user is registered on the social network and has connections thereon. The method comprises: indexing data representative of activities of the members on the social network to produce indexed activity data; receiving a search query relative to a subject along with a user identifier from the user device; using the search query and the user identifier, ranking members from the user's connections based on their activities on the social network related to the subject to obtain ranked experts for the subject; returning the names of ranked experts for the subject to the user device for presentation on the user interface.

Abstract: A method and system for placing an order for an item which allows a purchaser to search for an item across multiple merchants, including merchants without a pre-existing agreement to be included in the search, returns a list of merchants with the desired item, enables the user to sort the list according to several criteria (including: price; price and shipping; price, shipping, tax, and fees; shipping time; and country of merchant) and enables the purchaser to purchase the item from any of the listed merchants with a single action even if the purchaser did not have an account with the chosen merchant.