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:
Jul. 12, 1983
Filed:
Jun. 04, 1981
William L Thomas, Northbrook, IL (US);
Zenith Radio Corporation, Glenview, IL (US);
Abstract
A teletext interface is coupled between a television receiver and a medium storing a plurality of digitally encoded signals each representing a selected text/graphics character intended for transmission as a corresponding synthetic video signal during the active scanning intervals of a television signal. The teletext interface includes a ROM for converting each of the digitally encoded signals to a teletext encoded signal representing a corresponding text/graphics character and apparatus for inserting the teletext encoded signals as a plurality of teletext formated data rows in successive teletext lines of the television signal. A television receiver including a built-in teletext decoder is responsive to the teletext formated data rows for displaying the selected text/graphics characters in a high quality form while a standard receiver is responsive to the synthetic video signal for displaying the characters in a poorer quality form.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile