Apparatus and method for rotating on-screen display fonts
US6765577B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2000 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Jan 25, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/109
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for rotating OSD fonts are disclosed. The OSD rotation device including a central processing unit, font addresses generator, memory, a font ROM, a decoder, a shift register, a output controller and output circuits, a synchronization signal generator, and a display device. In a manner, the OSD fonts corresponding to the OSD font addresses are produced. Next, the OSD fonts is read and delivered to the decoder. Further, the decoder performs a decoding process for the OSD fonts to form a plurality of rotated fonts. The OSD message, including the rotated fonts, is displayed on a display device so that the video display is synchronized with the OSD message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.