High bandwidth data transfer employing a multi-mode, shared line buffer
US6654835B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2000 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Mar 23, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8042
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A technique for transferring data between a first device and a second device using a shared line buffer connected to a system bus which couples the first device and the second device. The technique includes (i) transferring data between the line buffer and dedicated memory associated with the first device, wherein the first device includes a data controller coupled to the system bus through a bus interface. The transferring (i) includes using the data transfer controller to effectuate a multiword data transfer between the dedicated memory and the line buffer. The technique further includes multiword data (ii) transferring between the line buffer and the second device across the system bus. When the transferring (i) precedes the transferring (ii), data is read from the dedicated memory from output to the second device, and when the transferring (ii) precedes the transferring (i), data is written to dedicated memory from the second device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.