System and method for describing presentation and behavior information in an ITV application
First Claim
1. An interactive television (ITV) system comprising:
- an authoring tool generating an ITV application, the ITV application including presentation information for presenting ITV content, the presentation information being represented via a plurality of data structures built based on one or more predetermined data structure types, at least one of the plurality of data structures configured to include an attribute and value pair for defining a presentation parameter of the ITV content; and
an execution engine receiving and executing the ITV application and the ITV content, the execution engine storing a plurality of default values for a plurality of attributes for defining default presentation parameters of the ITV content, the execution engine determining whether the at least one of the data structures includes one or more values for one or more of the plurality of attributes, and responsive to a determination that the at least one of the data structures includes the one or more values, retrieving the one or more values from the at least one of the data structures instead of the corresponding default values for presenting the ITV content.
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Accused Products
Abstract
An ITV application definition language (ADL) used to generate ITV applications for different types of target platforms and devices. The ADL provides a plurality of core data structure types upon which one or more data structures may be built. Data structures storing ITV content presentation and behavior information are referred to as resources. A resource is associated with a globally unique identifier that allows the data structure to be efficiently stored and retrieved from a hash table. A resource is also associated with an expiration time stamp that indicates when the resource is to be freed from memory. A resource is of arbitrary length, and contains values that differ from the default values stored at a receiving client device. Resources are also packaged into a module that may be catered to a platform and/or profile of a receiving client. The client may quickly determine whether the module is relevant to it by examining the platform and/or profile ID contained in a header of the module.
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Citations
20 Claims
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1. An interactive television (ITV) system comprising:
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an authoring tool generating an ITV application, the ITV application including presentation information for presenting ITV content, the presentation information being represented via a plurality of data structures built based on one or more predetermined data structure types, at least one of the plurality of data structures configured to include an attribute and value pair for defining a presentation parameter of the ITV content; and an execution engine receiving and executing the ITV application and the ITV content, the execution engine storing a plurality of default values for a plurality of attributes for defining default presentation parameters of the ITV content, the execution engine determining whether the at least one of the data structures includes one or more values for one or more of the plurality of attributes, and responsive to a determination that the at least one of the data structures includes the one or more values, retrieving the one or more values from the at least one of the data structures instead of the corresponding default values for presenting the ITV content. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification