Communication apparatus for communicating data between...

Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output expansion

Reexamination Certificate

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Details

C710S003000, C710S008000, C710S100000, C710S300000

Reexamination Certificate

active

10411324

ABSTRACT:
In a connection form of PC-printer-digital camera, for example, to enable a printing function from a PC to a printer, a direct printing function from a digital camera to a printer, and a function of directly transferring image data on a memory card of the digital camera to storage means on the PC, without changing the connection of each device, a printer comprises a virtual USB function which receives data from a PC directly connected via a communication line, a USB host which requests a digital camera also directly connected via the communication line for a data transfer and obtains data, a USB function capable of inputting and outputting the data received by the virtual USB function and the data obtained by the USB host, respectively, and a virtual USB function which transfers the data obtained from the digital camera to the PC.

REFERENCES:
patent: 5784581 (1998-07-01), Hannah
patent: 6148358 (2000-11-01), Murai
patent: 6549966 (2003-04-01), Dickens et al.
patent: 6601109 (2003-07-01), Bealkowski et al.
patent: 2003/0196011 (2003-10-01), Shih

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