US 7,120,846 B2 · Data transmission device, data receiving device, data transfer device and method

Abstract

A data transfer device having a data transmission side to receive an error detection signal transmitted thereto when an error is detected within data transmitted therefrom. It is decided whether to receive an error detection signal relating to the data transmitted therefrom and retransmission of the data is controlled depending upon the result of this determination. A data receiving side to detect an error in data transmitted thereto, to detect whether there is an error in the data received and, if there is an error in the data received, the data receiving side is capable of receiving data which generates an error detection signal depending upon the degree of the error. Therefore, when an error is detected from transfer data received, it will be possible to re-transfer the data using the address data for the transmission source.

Claims13

Dependent claims

A method of operating a data transfer device, comprising:

transmitting address data;
starting a counter;
determining whether an error communication signal is received in response to transmitted address data;
and
comparing a timing of receiving the error communication signal with a timing of an interrupt signal transmitted when a predetermined time period has elapsed.

2 more elements

A data transmission device transmitting data, including a device address of the data transmission device, to at least one data receiving device, comprising:

means for determining whether an error communication signal, transmitted from an intended data receiving device and received at the data transmission device, relates to data transmitted from the data transmission device in accordance with a match of a known time of data transmission from the data transmitting device to the intended data receiving device and an arrival time of the error communication signal at the data transmission device;
and
means, responsive to a match determination, for controlling retransmission of the previously transmitted data, including the address of the data transmission device, to the intended data receiving device.

A data transmission device transmitting data, including a device address of the data transmission device, to at least one data receiving device, comprising:

a controller determining whether an error communication signal, transmitted from an intended data receiving device and received at the data transmission device, relates to data transmitted from the data transmission device in accordance with a match of a known time of data transmission from the data transmitting device to the intended data receiving device and an arrival time of the error communication signal at the data transmission device;
and
a transmission device, responsive to a match determination by the controller, retransmitting previously transmitted data, including the address of the data transmission device, to the intended data receiving device.

Dependencies are inferred from the claim text.

Data transmission device, data receiving device, data transfer device and method

Life of this patent

Data transmission device, data receiving device, data transfer device and method

Life of this patent

Abstract

Claims13