Abstract:
An interactive multimedia presentation has an interactive content component that includes an application, which has instructions for rendering a media object. By nesting a declarative language event instruction inside of a declarative language timing instruction, a particular event can arise and/or be handled (for example, a media object is rendered) only within a time interval specified by the timing instruction. The event instruction specifies when a particular event (such as a user event, a system event, a document object event, or another type of event) arises. When the event arises during the time interval, the event may be handled. Outside of the time interval, even if the event arises, the event is not handled. In this manner, responses to the event are constrained to happen in the time interval, and events that are not handled within a certain time may be ignored.
Abstract:
An interactive multimedia presentation has a predetermined presentation play duration, a video content component (which may include video, audio, data, or any combination thereof), and an interactive content component. Methods and systems for playing the presentation include specifying a time when a particular media object is renderable. The time is specifiable using an application instruction that references either a first timing signal having a rate that is based on the play speed of the presentation, or a second timing signal having a continuous rate. One example of an application instruction usable as described above is an element associated with an XML data structure. An attribute of the element, such as the clock attribute, may be used to provide time values for the element that reference either timing signal. The attribute is used to maintain frame-accurate synchronization between the video and the interactive content components of the presentation.
Abstract:
A method is provided for analyzing a plurality of search sessions to identify intent-based clusters therein. Each session comprises at least one received query from a user and a corresponding set of returned search results, and each set of search results includes or refers to at least one piece of content. Each cluster represents a group of similar search sessions that are perceived as representing a common purpose and that can be mapped to a common set of search results. In the method, for each search session, each received query thereof, the corresponding set of search results, and whether any particular piece of content of the search results was acceptable to the user as responsive to the corresponding search session are identified. Thereafter, search sessions are grouped into clusters.
Abstract:
Applications are managed in an interactive media environment by the creation of a logical model for the lifetime of an application. The model is applicable to concurrently and/or consecutively running applications and governs the creation of applications, manipulation of applications by other applications, resource consumption, visibility of an application to a user, and application shutdown in the interactive media environment using the construct of application “state.” A set of Booleans flags is utilized and unique combinations of elements in the Boolean flag set define a plurality of application states
Abstract:
Playing an interactive multimedia presentation involves pre-rendering a media object at certain times based on a frame rate of the interactive content, a frame rate of the video content (which may include video, audio, data, or any combination thereof), and a play speed of the presentation. Certain actions taken include calculating a current elapsed play time representing an amount of the presentation's play duration that has passed. Based on the calculated time, a current interactive content presentation time is ascertained from an interactive content timeline. The interactive content timeline represents times at which the media object is presentable. A subsequent interactive content presentation time is selected from the interactive content timeline. The presentation state of the media object is predicted for the subsequent interactive content presentation time. The media object is pre-rendered within a time offset period before the subsequent interactive content presentation time occurs.
Abstract:
Using declarative language application instructions, one or more actions associated with playing interactive content of an interactive multimedia presentation are conditionally triggered based on a state change of a style or non-style characteristic of a particular media object. Certain application instructions specify the characteristic of the media object, while other application instructions specify the actions associated with playing the interactive content (for example, when one or more media objects are renderable, event generation, script execution, or changes in variables) based on a state change of the characteristic. The state change is detected by querying a structured representation of the application, which includes nodes associated with the application instructions, the media object, and/or the characteristic. When state changes are detected, one or more of the specified actions are triggered.
Abstract:
Media content is arranged into a number of sets of video, audio, or data samples, referred to as clips, which are rendered by a media content manager. A playlist, which is handled by a presentation manager, specifies the time-ordered sequence of clips playable to a user. Certain actions are taken during media content play to minimize glitches perceived by the user, including determining a time offset value that is used to decide how far in advance of a scheduled play time to begin pre-rendering an upcoming clip. The time offset value is determined using one or more static characteristics associated with a media source for the upcoming clip, such as the location of the media source, codec parameters, or encryption complexity, and one or more dynamic characteristics of the presentation system, such as retrieval states, (including play speeds) of media clips, processing loads, or clock frequencies.
Abstract:
In an interactive media environment, input events are distributed to a plurality of applications where each application includes zero or more script components and zero or more markup files and has a Z order which corresponds to the position of the applications' visual elements on a display. An input event processing order is utilized where the application that has focus in an interactive media environment (by virtue of its receipt of user events) is provided with the first opportunity to consume the input event. If the focused application does not consume the input event, it is then delivered to the remaining applications in top down, inverse Z order. Each application is enabled with the ability to consume an input event, pass it on to lower Z ordered applications, hide it from lower Z ordered applications, or otherwise handle it. Input event processing stops when an application consumes the input event.
Abstract:
A search and a browse on a single user query is performed. A refined query is selected from the results of the first user query. Thereafter, a list of concepts from a first directory associated with the refined query is obtained. The concepts are defined in a hierarchical relationship with concepts having broader scope being higher in the hierarchy and concepts having a narrower scope being lower in the hierarchy. Additionally, a list of web sites associated with the search concept is obtained from a second directory.
Abstract:
Using declarative language application instructions, actions associated with playing interactive content of an interactive multimedia presentation are triggered based on a state change of a particular media object. Certain application instructions specify the characteristic of the media object, while other application instructions specify the actions associated with playing the interactive content (for example, when media objects are renderable, event generation, script execution, or changes in variables) based on a state change of the characteristic. The state change is detected by querying a structured representation of the application such as a document object model, which includes nodes associated with the application instructions, the media object, and/or the characteristic. When state changes are detected, one or more of the specified actions are triggered to thereby declaratively respond to the state change. In an illustrative example, the state changes are tracked using attributes which include foreground, focused, pointer, actioned, enabled, and value.