Data communication on a serial bus using a selected protocol based on an obtained device identifier
US6874082B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2002 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Jan 10, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/33378
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In response to a request from a host device using an initial protocol, capability information including information indicative of a plurality of communication protocols is returned to the host device, and a communication protocol, designated by the host device based on the capability information, is set, and print data is received from the host device by the set communication protocol. In a system using an interface connected to various types of devices, e.g., an IEEE 1394 serial bus, a communication protocol, which is used when a host device transfers print data to a printer, is not limited to that unique to the manufacturer of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.