Video clip identification system unusable for commercial cutting

In a television broadcasting system comprising transmitting a video stream from a first station to second stations, a method, for use in a second station, of identifying a scene within the video stream, the method comprising the steps of:

• obtaining from a user a category of scenes that the user desires;
• detecting a tag associated with said scene that is in said video stream, said tag including a category of said scene, a location of a beginning of said scene and a length of said scene,
• wherein said tag comprises means to prevent said tag from being used for commercial cutting;
• and
• if said category incorporated in said tag coincides with said desired category, extracting from said video stream a part of a length of said video stream, defined by the length of said scene.

A system, within a first station in a television broadcasting system, for permitting a second station to extract a scene from within a video stream being broadcast from the first station, the system comprising:

• means for generating a tag for said scene, said tag including a category of said scene,
• means for locating a beginning of said scene and a length of said scene;
• means for preventing said tag from being used for commercial cutting;
• and
• means for inserting said tag in said video stream at the position associated with said scene beginning.

In a television broadcasting system wherein a first station transmits a video stream to second stations, a system, within at least one second station, for extracting a scene within said video stream from the first station, the system comprising:

• means for obtaining from a user a category of scenes that the user desires;
• means for detecting at least one tag in said video stream, said tag including a category of said scene,
• means for locating a beginning of said scene and a length of said scene,
• wherein said tag is adapted to prevent said tag front being used for commercial cutting;
• and
• means, responsive to a determination that said category included in said tag coincides with said desired category, for extracting, from said video stream a part of a length of the video stream defined by said length of said scene starting from a beginning of said scene.