CLOSED CAPTION TAGGING SYSTEM

摘要

A tagging system provides a mechanism for inserting tags into an audio or video television broadcast stream prior to or at the time of transmission. The tags contain command and control information that the receiver translates and acts upon. The receiver receives the broadcast stream and detects and processes the tags within the broadcast stream which is stored on a storage device that resides on the receiver. Program material from the broadcast stream is played back to the viewer from the storage device. The receiver performs the appropriate actions in response to the tags.

主权项

1. A method comprising:
receiving a media stream at a media device, the media stream comprising at least video frames and video frame-specific tags within the media stream, the video frame-specific tags including at least command and control information instructing the media device to perform certain actions; playing the media stream at the media device; while playing the media stream at the media device:
detecting particular video frame-specific tags that were received within the media stream, the particular video frame-specific tags specific to particular video frames of the media stream;processing the particular video frame-specific tags that were received within the media stream; andperforming one or more appropriate actions with respect to the playing of the media stream when the playing of the media stream reaches the particular video frames that correspond to the particular video frame-specific tags, based at least on particular command and control information included in the particular video frame-specific tags instructing the media device to perform the one or more appropriate actions.