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US 2004/0111524 A1Published application
Data communication method and information processing apparatus for acknowledging signal reception by using low-layer protocol
OwnerYoshimitsu Namioka, Takeshi Miyaoinventors
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Abstract
In a data communication method and information processing apparatus which is highly secure against attack to a computer, data is transmitted from a first computer to a second computer, a confirmation signal of data reception at the second computer is transmitted from the second computer to the first computer, data transmission from the second computer to the first computer is restricted, and data reception at the second computer is confirmed by using a protocol at a lower layer.
Claims12
A data communication method comprising steps of:
- transmitting data from a first computer to a second computer by using a data transmission protocol restricting data transmission from the second computer to the first computer;
- and
- transmitting, a signal representative of data reception at the second computer, from the second computer to the first computer by using a protocol at a layer lower than the data transmission protocol.
An information processing apparatus having a first computer comprising:
- a data transmission processing unit for transmitting data to a second computer;
- and
- an input unit for inputting from the second computer a signal representative of reception of the data at the second computer,
- wherein the signal representative of reception of the data at the second computer is input to said input unit from the second computer by using a protocol at a level lower than a protocol of data transmission, whereby data reception at the second computer is restricted.
1 more element
Dependencies are inferred from the claim text.