发明名称 Data communication on a serial bus using a selected protocol based on an obtained device identifier
摘要 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.
申请公布号 US6874082(B2) 申请公布日期 2005.03.29
申请号 US20020041647 申请日期 2002.01.10
申请人 CANON KABUSHIKI KAISHA 发明人 TATEYAMA JIRO;SUZUKI NAOHISA;FUKUNAGA KOJI;KATANO KIYOSHI;NAKAMURA ATSUSHI;KOBAYASHI MAKOTO
分类号 G06F3/12;G06F13/42;H04L12/40;H04L12/64;H04L29/06;H04N1/00;H04N1/333;H04N7/24;(IPC1-7):G06F15/177;G06F3/00 主分类号 G06F3/12
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