The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 1999
Filed:
Jul. 07, 1997
Frank Andre Schaffa, Hartsdale, NY (US);
David Israel Seidman, New York, NY (US);
Ahmed Nasr-El-Din Tantawy, Yorktown Heights, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system architecture enables the distribution, to users connected to a digital broadcast medium, of supplementary information, which is presented and accessed in the context of the viewing of a video program. This ancillary, or 'follow-up' information (FUI) is embedded in the same transport stream (digital multimedia broadcast stream) as the digital video and audio content. The FUI may take the form of video, audio or text. Alternatively, the transport stream may carry pointers to follow-up information (PFUI) instead of the information itself. In the latter case, the pointers are saved and used subsequently in the selection of FUI from a channel which carries data exclusively. In the former case, the user selects the FUI (supplementary information) which is to be extracted from the broadcast stream as it is transmitted.