Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output command process
Reexamination Certificate
2007-09-06
2009-12-29
Nguyen, Tanh Q (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output command process
C710S008000, C710S010000, C710S015000, C710S018000, C710S020000, C710S021000, C710S030000, C710S058000, C710S104000, C717S168000, C717S169000, C717S170000, C717S171000, C717S172000, C717S173000, C717S174000, C717S175000, C717S176000, C717S177000, C717S178000
Reexamination Certificate
active
07640367
ABSTRACT:
A method to update firmware in a plurality of peripheral devices and a computer using the method to reduce data transmission collisions and to reduce the time required to complete the update process. The process involves sending firmware update data from a computer that is connected to a communication network to printers or other peripheral devices that are also connected to the communication network. The computer11groups a plurality of peripheral devices (such as printers13a1) connected to the communication network into separate transmission unit groups each containing up to a maximum number of peripheral devices with the maximum number determined by measuring the transmission speed of the network and thereafter deriving the maximum number by experimentation at the measured transmission speed. The update data for updating the firmware is transmitted to the peripheral devices of any one transmission unit group. Thereafter update data is sequentially transmitted to the peripheral devices in another transmission unit group but not until the completion of transmitting the update data to all of the peripheral devices in the first transmission unit group is confirmed.
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Takamoto Akio
Yamada Takeshi
Baker & Hostetler LLP
Nguyen Tanh Q
Seiko Epson Corporation
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