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. 18, 2000
Filed:
Sep. 02, 1997
Yasufumi Masaike, Kanagawa, JP;
NEC Corportion, Tokyo, JP;
Abstract
To provide an OSD circuit needing little load for the control command transfer for displaying a background color, a OSD circuit of the invention comprises a background color control circuit (4) for out-putting three color signals and a blanking signal generated by a character generator (3), when a background control signal supplied from the command processor is inactive, said background control signal made active when the video picture is to be replaced with a background color, and outputting the three color signals generated by the character generator during the blanking signal is active and background color signals for displaying the background color during the blanking signal is inactive, together with a background blanking signal for suppressing signals of all of the video picture instead of the blanking signal, when the background control signal is active.