Data communication apparatus and method

Details Data communication apparatus and method Data communication apparatus and method

H - Electricity

04

L

H04L 12/40 (2006.01) G06F 3/12 (2006.01) G06F 13/42 (2006.01) H04L 29/06 (2006.01) H04N 1/00 (2006.01) H04N 1/333 (2006.01) H04L 12/64 (2006.01) H04N 7/24 (2006.01)

Patent

CA 2229472

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.

En réponse à une demande transmise par un dispositif hôte utilisant un protocole initial, des informations de capacité comprenant des informations portant sur une pluralité de protocoles de communication sont transmises à ce dispositif hôte et un protocole de communication conçu par ce dispositif hôte à partir de ces informations de capacité est établi, et des données d'impression sont reçues de ce dispositif hôte par le protocole de communication établi. Dans un système utilisant une interface connectée à divers types de dispositifs, par exemple un bus série IEEE 1394, un protocole de communication utilisé quand un dispositif hôte transfère des données d'impression à une imprimante n'est pas limité à un dispositif particulier.

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