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:
May. 07, 2002
Filed:
Jul. 09, 1998
Tadashi Oguma, Saitama-ken, JP;
Kabushiki Kaisha Toshiba, Kanagawa-Ken, JP;
Abstract
When a sub-image (A) and a sub-image (B) are displayed as semi-moving pictures on a multi-screen, the fields of the input sub-images (A) and (B) are determined. By setting the field determination result as one condition for a write to the memory the sub-images (A) and (B) can be stably written to the memory in either odd fields (ODD) or even fields (EVEN), and can be read and displayed on the screen without flickering characters due to line flicker. Furthermore, when video signals are switched for a channel switch or an input switch, the operation remote controller can issue a switch instruction so that a write to the video memory is stopped according to the generated switch signal, and the image is displayed as a still image. In response to a new input video signal, the number of write increase lines or picture elements for a write to the video memory is set to n. The writing operation is performed m times (m is a natural number) for every other field. According to the operation of n×m, the number of write increase lines or picture elements is incremented, and the updated image at the image switch can be gradually switched from one end of the screen or in combination of vertical and horizontal directions.