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Data transmission apparatus, data transmission device, data reception device and data transmission system

A technology of data transmission and equipment, applied in the direction of digital transmission system, transmission system, electrical components, etc., can solve the problems of packet neglect, complex retransmission process, inability to interpret and represent data, etc., to improve error correction ability and improve error correction ability , the effect of effective transmission bandwidth

Inactive Publication Date: 2008-11-26
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In type "(2)", although the transmission bandwidth can be efficiently utilized by changing the frame length for each command, the retransmission process becomes extremely complicated
Also, when the data representing the packet header cannot be interpreted due to bit errors, the entire packet is ignored

Method used

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  • Data transmission apparatus, data transmission device, data reception device and data transmission system
  • Data transmission apparatus, data transmission device, data reception device and data transmission system
  • Data transmission apparatus, data transmission device, data reception device and data transmission system

Examples

Experimental program
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Embodiment Construction

[0072] first exemplary embodiment

[0073]A storage system to which a data transmission device, a data transmission device, a data reception device, and a data transmission system according to an exemplary embodiment of the present invention are applied will now be described.

[0074] (Storage system configuration)

[0075] FIG. 1 shows a storage system according to an exemplary embodiment of the present invention. The storage system 100 has a host computer 101 and a semiconductor disk device 102 .

[0076] The semiconductor disk device 102 includes a host bus interface (I / F) 2 connected to a host computer 101, a memory controller 4 connected to the host bus I / F 2 through a serial transmission line 3 such as PCI Express, and a memory controller 4 in which data is stored. Semiconductor memory 5.

[0077] The host bus I / F 2 and the memory controller 4 are connected together through the data transmission device 1 provided here and to which the high-speed serial transmission te...

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PUM

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Abstract

The invention provides a data transmission apparatus, a date sending and receiving apparatus and a data transmission system. The data transmission apparatus includes a packet generation section, a frame encoding section, a transmission section, a reception section, a frame decoding section and a packet extraction section. The packet generation section generates a packet upon request. The frame encoding section generates a frame having a predetermined length by dividing the packet or adding dummy data to the packet and generates an error-correcting-code-added frame by adding an error correcting code to the frame. The transmission section transmits the generated error-correcting-code-added frame through a transmission line. The reception section receives the error-correcting-code-added frame. The frame decoding section performs error detection and an error correction for the error-correcting-code-added frame. The packet extraction section extracts the packet by removing the error correcting code from the error-correcting-code-added frame for which the error detection and the error correction have been performed.

Description

technical field [0001] The invention relates to a data transmission device, a data sending device, a data receiving device and a data transmission system. Background technique [0002] In general, in order to increase the transmission bandwidth, a method of increasing the bit width of the transmission line or the transmission frequency can be considered. Recently, with the development of semiconductor technology, the operating frequency of the CPU or the capacity of the main memory has been increased. In consideration of the above situation, in the transmission line for connecting the host system and the storage device, a serial bus such as PCIExpress, which increases the transmission frequency by reducing the number of bits, replaces a parallel bus such as SCSI, which increases the transmission bandwidth by increasing the bit width. Bus technology, while occupying a dominant position in the market. [0003] In data transmission using a serial bus or the like with a high t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H03M13/31
Inventor 黑石范彦上村健铃木星儿北村淳森信男赤松学瀬野训启
Owner FUJIFILM BUSINESS INNOVATION CORP
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