----------------------- Name, organization and contact details ----------------------- Name: Yosuke Funahashi Organization: Tomo-Digi Corporation E-mail: yfuna@tomo-digi.co.jp ----------------------- Participant’s interest ----------------------- As of November, 2010, the number of household television sets in use is already exceeds 97 million in Japan. Since almost all digital TV sets have browser capability (based on XHTML1.1), a universal service using browsers on TV is getting more and more viable all over the land. Now digital TVs are taking the center of digital home networks, and it is expected that they will be used not only as a receiver for digital broadcasting but also as a central server for variety of entertainment and essential information for everyday life. Also it is strongly desired that TV sets will be better integrated with Web technologies, e.g., HTML5 and get even richer presentation capability. We believe our knowledge and expertise on digital TV broadcasting technology in Japan should be useful to this workshop and we should be able to provide various use cases based on our long-term experience. We are very interested in what kind of roles our expertise on digital broadcasting would play in the context of Web standardization. -------------- Point of View -------------- 1. TV and publicness --------------------- In case of natural disasters, usual infrastructures for communications like telephones and mobile phones might not be available. So providing disaster information is one of the very important roles of broadcasting as a public service. We would like to introduce various use cases of public TV network services in Japan. 2. Design Pattern for Interactive TV Programs --------------------------------------------- There are already variety of Interactive TV Programs in Japan and they form a wealth of use cases of Web and TV services with browser on TV devices. Detailed analysis of them shows us that we can classify those use cases and the classification leads us to the notion of Design Pattern for Interactive TV Programs. We would like to introduce some of design patterns as abstract use cases. 3. Essential APIs for realizing Web and TV services with broadcasting --------------------------------------------------------------------- W3C already has several specifications regarding APIs to treat audio-visual resources on the Web, e.g. HTML5 video tag, Media annotations, Media fragments and so on. But from the perspective of broadcasting, they seem to lack some essential APIs for realizing Web and TV services with broadcasting, especially APIs to treat dynamic aspect of broadcasting signals. We would like to introduce some specific APIs suggestion with typical use cases that require those APIs. For example, - URIs for resources in MPEG2 transport stream; - Event model for synchronization of browser's behavior with the change of the state of TV programs. 4. Metadata requirements for smarter contents management, distribution and delivery ---------------------------------------------------------------------- W3C already has the Media Annotations, i.e. an ontology and API designed to facilitate cross-community data integration of information related to media objects in the Web, such as video, audio and images. The Media Annotations is a great work, but we believe that to extend it with the viewpoint of broadcasting will make it more fruitful because in broadcasting industries metadata form a large and complicated value chain, from metadata automatically created in digital video cameras (e.g. latitude, longitude and the information from gyro sensors) to delivered metadata to CE devices which provide richer user experiences (e.g. better presentation of contents and smarter recommendation). We would like to introduce several use cases that can be realized if we have smarter value chain as a result of collaboration of the web technologies and expertise in broadcasting. 5. Use cases from the perspective of TV as a client device for eGov ------------------------------------------------------------------- e-Government has been and continues to be a long-term challenge in many countries, both from the viewpoint of data that governments provide to the Web and broadcasters, and from the viewpoint of CE devices sufficiently easy to use and attractive for users to keep using. Regarding governments' data, the eGov activity in W3C has been bringing semantic web technologies to public sector, and it gradually starts to influence the business in private sector. Regarding CE devices, smart phones and slate devices seem now bringing e-Gove applications and services to life. In such circumstances, to study smarter TV from the perspective of a client device for eGov will bring us new use cases, and those use cases will lead us to the smarter design of both future TV and future eGov. We would like to introduce our trial consideration on future TV and future eGov. 6. Collaboration between broadcasting and communication technology -IPTV- -------------------------------------------------------------------------- To implement actual IPTV services, it is very important to clearly define (1) the interface between IPTV middleware, e.g., DRM (Digital Rights Management), and browsers and (2) ECG (Electronic Content Guide) metadata. We would like to introduce several use cases based on our IPTV service experiences in Japan, and see what possible future services could be beyond our experiences.