Image display apparatus capable of displaying personal computer signals and television signal by conversion into a signal of a higher number of pixels
US5838381A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1996 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Dec 20, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/125
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention aims at providing an image display apparatus capable of displaying both a television signal and an image signal supplied from a personal computer with a high picture quality on a high definition display unit having 1024 by 768 pixels. In order to achieve this object, an image display apparatus according to the present invention includes an NTSC-VGA conversion circuit for converting a television signal to a signal having 640 by 480 pixels and corresponding to the non-interlacing VGA standard, a switch unit for selecting and outputting either the signal outputted from the NTSC-VGA conversion circuit and an inputted image signal from a personal computer, and a VGA-XGA conversion circuit for converting a number of pixels of a signal outputted from the switch unit to a number of pixels 1024 by 768 substantially equivalent to the number of the display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.