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:
Aug. 28, 1990
Filed:
May. 23, 1989
Richard E Bugg, Coulsdon, GB;
U.S. Philips Corporation, New York, NY (US);
Abstract
A teletext decoder for teletext information comprising a plurality of different pages each of which is identified by a respective page number and each of which comprises a plurality of data packets each having a respective address. The teletext decoder includes a page memory and a pseudo page clearing arrangement in which a reference flag number (F) is allocated to a page header of a selected page. A packet related flag number (F) is allocated to each packet of the selected page as it is received. Utilisation of any data packet stored in the page memory, whose packet related flag number is not the same as the reference flag number is inhibited and the reference flag number for each successively selected page is changed.