Interactive cable television system with frame grabber
US6253238A · kind A · utility
191Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1998 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Dec 2, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an interactive cable system having at least one processor at a headend in communication with subscribers through an information service distribution network, a frame grabber is provided for grabbing a frame of video and storing the frame in a storage medium. A video frame may be requested from the storage medium in response to control data received from a subscriber selection device, wherein a processor retrieves the video frame from the storage medium, transforms the frame into a television information signal and sends the frame to the subscriber's home interface controller for display on the subscriber's television.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.