IEC/PAS 62297-2002 在TV传输中引进触发机构的建议标准

适用范围: Existing data broadcasting specifications do not allow a service provider to trigger an application in a receiver. This document specifies a triggering scheme for TV broadcasting based on the requirements defined in Annex A. Examples of possible use include displaying information to warn of severe weather conditions and advising of extreme content in TV programmes. In an interactive system, a message or icon might be displayed inviting on-line access to vote, to register an interest in an advertised product, or to browse programme-related content. For the purposes of this document a trigger is defined as information sent from a service provider as part of a data broadcasting transmission and intended to control an application in a receiver. Additional information can be supplied along with the basic trigger to allow filtering or prioritisation techniques to be applied at the receiver. The transmission aspects of trigger messages are specified in [1]. Annex C describes a simple method for triggering the display of a Teletext page from within a standard page-format Teletext transmission.

IEC/PAS 62297-2002
在TV传输中引进触发机构的建议已作废