Circuit for processing video signal including information such as caption
US7460182B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 25, 2005 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Aug 21, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8233
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A video signal processing circuit includes a frame memory to receive and store therein at a first rate each frame of a digital video signal in which additional information is assigned separately to each frame, a frame synchronization unit to read each frame of the digital video signal from the frame memory at a second rate, and a processing unit to assign the additional information to the digital video signal read by the frame synchronization unit, without repeating the additional information when the frame synchronization unit reads a same frame of the digital video signal repeatedly, and without skipping the additional information when the frame synchronization unit reads by skipping a frame of the digital video signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.