The high-speed radio communication technology which was developed in Korea. It was standardized IEEE (international Institute of Electrical and $electronic Engineer) with “Mobile WiMAX” (IEEE802.16e) as portion of standard in 2005 December.

The radio of the 2.3GHz band is used, it is maximum and it descends and can communicate with 20Mbps and rising 6Mbps. WiMAX of fixed radio technology was developed in the basis, but it is assumed that, WiBro when moving and being communication possible, descends in the high-speed on the move and can guarantee the transmission speed of several hundred kbps. Because of this, until the fourth generation portable telephone (4G) is introduced, “it connects and” it is expected as high-speed portable communication technology.

WIDE

Reading: Wide
Full spelling: Widely Integrated Distributed Environments
Alias:
WIDE project
Field:
Internet > group > WIDE

The research project which aims toward the establishment of the new computer environment where operating system technology and communication technology were designated as the basis. The Murai pure people of university Professor present Keio originated in 1986. 100 the group which such as academic institution and enterprise such as university and laboratory exceeds participates. In 1988 it participated in Internet in Japan with IP connection for the first time, it was observed as the tip running of domestic Internet utilization

Wideband CDMA W-CDMA

Field:
Portable telephone > 3G > Wideband CDMA

The 3rd generation portable telephone which NTT [dokomo] and the Ericsson corporation etc developed (3G) communication method. The high-speed portable time at the time of 144kbps and walking at the time of 384kbps and standstill there to be the data transmission ability of 2Mbps, communication of the real time with animated picture sound is possible. CDMA system is adopted, because one frequency can be shared with the group of users, frequency efficiency is good. We are proposed ITU (the International Telecommunication Union) as the Japanese and European standard plan of the next generation communication method IMT-2000 which is advancing standardization, we have disputed centering on cdma2000 and standard of the North American plan. 3rd generation portable telephone “FOMA” of NTT [dokomo] has adopted this system.

Wideband cdmaOne W-cdmaOne

Field:
Portable telephone > 3G > Wideband cdmaOne
-> Referring to the section of cdma2000

It is resolution of 400×240 pixel. QVGA (the 320×240) those which expand breadth. It is adopted by PDA and the portable telephone etc.

Wide QVGA WQVGA

Alias:
Wide QVGA and Wide Quarter VGA
Field:
Imaging > display > structure > Wide QVGA
Mobile > PDA > Wide QVGA
Portable telephone > terminal > Wide QVGA

It is resolution of 400×240 pixel. QVGA (the 320×240) those which expand breadth. It is adopted by PDA and the portable telephone etc.

Wide SCSI-2 Fast Wide SCSI

Field:
Personal computer > I/O > SCSI > Wide SCSI-2

At portion of SCSI-2 standard, simultaneous transfer capacity at 16 bit width specification of transfer rate 20MB/s. The American National Standards Institute (ANSI) being something which is standardized in 1994, it was defined the early SCSI standard (SCSI-1) as one of the SCSI-2 standard which it strengthens. As for the maximum connection quantity 16, as for maximum cable length with single-end transfer 12m (LVD) - 25m (HVD) is with 3m and differential transfer. With SCSI-2 in addition transfer is done at 8 bit width, there is “a Fast SCSI” specification.

Wide SCSI-3 Wide Ultra SCSI

Alias:
Wide Ultra SCSI-3 and Ultra Wide SCSI
Field:
Personal computer > I/O > SCSI > Wide SCSI-3

At portion of SCSI-3 standard, simultaneous transfer capacity at 16 bit width specification of transfer rate 40MB/s.

In the specification which raises transfer rate former SCSI-2 (Fast Wide SCSI) with drive frequency as time, maximum cable length at the time of single-end drive with 8 connections to 1.5m, with 4 unit connections has become to 3m.

If differential drive (HVD) with it operates, as for existing together of the single-end equipment at the time of 16 unit connection of those which it is not possible to 25m extended possibility.

Transfer is done at 8 bit width, (Narrow) transfer rate of Ultra SCSI specification is 20MB/s.