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:
Jun. 08, 1999
Filed:
Nov. 14, 1997
Sandor Gyarmati, Villingen-Schwenningen, DE;
Deutsche Thomson-Brandt GmbH, Villingen, DE;
Abstract
For the transmission of additional data on a television channel the lines of the vertical blanking interval are used. It is intented to improve program information by so-called electronic program guides, which are based on the transmission of a large database. For these EPGs the additional data shall be broadcasted within the teletext data stream in a compatible manner. The EPG data are splitted into two data streams, wherein the transmitted data are organized in data blocks. Data blocks from different streams may interrupt each other. According to the invention the data pages (A, B) are stored sequentially in two different buffers (PA, PB) and processed alternatively. The blocks of the pages transmitted in the first stream are stored in a first block buffer (BB1) and the blocks of the pages transmitted in the second stream are stored in a second block buffer (BB2).