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:
Mar. 05, 1991
Filed:
Feb. 01, 1989
Vonn L Black, Colorado Springs, CO (US);
Gary D Zimmerman, Colorado Springs, CO (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A system is provided in which video information is converted to a format acceptable for printing by a standard printer, which is also capable of printing non-video based information. The system enables the user to provide a hard copy recording of video information that may be changing rapidly. The system includes an apparatus for converting the video information into a format acceptable for printing by the standard printer. Preferably, the conversion technique does not depend on providing synchronization between the display rate of the video display screen of the video information instrument and the sampling of the video information, nor is it necessary that the number of clock samples associated with the horizontal scan be the same for different instruments from which video information can be obtained. To accomplish such objectives, the video information is sampled at a greater rate than the display rate of the video screen. The obtained video information is stored using digital data. The digital data representing the video information is then reconstructed using a dot boundary algorithm and a dot clock synchronization pattern algorithm, together with translation maps that are used to translate serial bit samples into corresponding representations of display dot intensity levels. The reconstructed video information, which represents the display dots, is outputted by the converting apparatus for printing by the standard printer.