Image input/output control system
US6707569B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1999 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Nov 8, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0082
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanner is connected to a G bus and a B bus by way of a scanner controller and a G bus/B bus interface (GBI). A printer is connected in a similar manner. Furthermore, the scanner controller is connected directly to a printer controller with a CP bus. The GBI is capable of performing DMA transfer and data can be transferred between the GBIs. Furthermore, data can be transferred by way of the G bus and a RAM or the B bus and the RAM. The GBI is connected to the scanner controller and the printer controller by way of FIFOs, respectively. Accordingly, an image input/output control system according to the present invention is capable of absorbing differences in data transfer speeds and can be connected to various kinds of scanners and printers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.