Abstract: An electronic apparatus is disclosed. A reproduction section allows first video content containing a plurality of types of data and first identification information to be reproduced. A transmission section transmits the first identification information to a server apparatus. A reception section receives a first application and first access control information from the server apparatus, the first application being associated with the first video content and being retrieved by the server apparatus based on the transmitted first identification information, the first access control information being generated by the server apparatus based on the first identification information and representing a condition in which the first application accesses the individual types of the data contained in the first video content. A control section executes the received first application based on the received first access control information when the first video content is reproduced.

Abstract: An electronic apparatus is disclosed. A reproduction section allows first video content containing a plurality of types of data and first identification information to be reproduced. A transmission section transmits the first identification information to a server apparatus. A reception section receives a first application and first access control information from the server apparatus, the first application being associated with the first video content and being retrieved by the server apparatus based on the transmitted first identification information, the first access control information being generated by the server apparatus based on the first identification information and representing a condition in which the first application accesses the individual types of the data contained in the first video content. A control section executes the received first application based on the received first access control information when the first video content is reproduced.

Abstract: In a system comprising a central control device and operation devices, wherein connectors are connected to operation device and control, video, and audio signals can be exchanged among the operation devices through multiline cables connected to the connectors or as multiplexed signals, a particular operation device connected to a connector can be identified by detecting the connector inputting a control signal transmitted by the particular operation device and information on pairs, each comprising a connector and operation device connected to the connector, is cataloged in a selector control table stored in a RAM unit embedded in a control means of a central control device. Accordingly, the operation devices can be connected to each other with ease.

Abstract: An audiovisual system includes audio, video, and/or audiovisual components and microcomputers for controlling the components, respectively. When one of the components is operated on, data is sent from the corresponding microcomputer to a main microcomputer. The main microcomputer transmits a control signal to those microcomputers for one or some of the other components to put those components in operation in relation to the operation of the component that has been operated on.