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Encyclopedia > Wireless USB

Wireless USB is a short-range, high-bandwidth wireless extension to USB that combines the speed and ease-of-use of USB 2.0 with the convenience of wireless technology. Wireless USB is sometimes abbreviated as "WUSB", although the USB Implementers Forum discourages this practice and instead prefers to call the technology "Certified Wireless USB" to differentiate it from competitors (see below, "Competitors"). Wireless USB is based on the WiMedia Alliance's Ultra-WideBand (UWB) common radio platform, which is capable of sending 480 Mbit/s at distances up to 3 meters and 110 Mbit/s at up to 10 meters. It was designed to operate in the 3.1 to 10.6 GHz frequency range, although local regulatory policies may restrict the legal operating range for any given country. To meet Wikipedias quality standards, this article or section may require cleanup. ... Note: USB may also mean upper sideband in radio. ... The USB Implementers Forum, USB-IF, is a non-profit organisation to promote and support the Universal Serial Bus. ... The WiMedia Alliance is a not-for-profit open industry association that promotes and enables the rapid adoption, regulation, standardization and multi-vendor interoperability of ultra-wideband (UWB) worldwide. ... Ultra-wideband (also UWB, and ultra-wide-band, ultra-wide band, etc. ... A megabit per second (mbps or mbit/s) is a unit of data transmission equal to 1,000 kilobits per second or 1,000,000 bits per second. ... A gigahertz is a billion hertz or a thousand megahertz, a measure of frequency. ...

Contents

Uses

Sample Picture Wireless USB Device Connections
Sample Picture Wireless USB Device Connections

WUSB will be used in devices that are now connected via regular USB cables, such as game controllers, printers, scanners, digital cameras, MP3 players, hard disks and flash drives, but it is also suitable for transferring parallel video streams. Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... A game controller is an input device used to control a video game. ... This does not cite its references or sources. ... In computing, a scanner is a device that analyzes an image (such as a photograph, printed text, or handwriting) or an object (such as an ornament) and converts it to a digital image. ... Digital cameras are a remarkable advance in technology. ... A portable MP3 player MPEG-1 Audio Layer 3, more commonly referred to as MP3, is a popular digital audio encoding, lossy compression format, and algorithm, designed to greatly reduce the amount of data required to represent audio, yet still sound like a faithful reproduction of the original uncompressed audio... Typical hard drives of the mid-1990s. ... A USB drive, shown with a 24 mm US quarter coin for scale. ...


Development

The Wireless USB Promoter Group was formed in February 2004 to define the Wireless USB specification. The group consists of Agere Systems, Hewlett-Packard, Intel, Microsoft, NEC Corporation, Philips and Samsung. For other senses of this word, see protocol. ... Agere Systems Inc. ... The Hewlett-Packard Company (NYSE: HPQ), commonly known as HP, is a very large, global company headquartered in Palo Alto, California, United States. ... Intel Corporation (NASDAQ: INTC, SEHK: 4335), founded in 1968 as Integrated Electronics Corporation, is an American multinational corporation that is best known for designing and manufacturing microprocessors and specialized integrated circuits. ... Microsoft is one of few companies engaging itself in the console wars Where they are up against sony, nintendo, and of course sharps new console which may cause a threat. ... NEC Corporation (Jp. ... Philips HQ in Amsterdam Koninklijke Philips Electronics N.V. (Royal Philips Electronics N.V.), usually known as Philips, (Euronext: PHIA, NYSE: PHG) is one of the largest electronics companies in the world. ... Samsung Group is one of the largest South Korean business groupings. ...


In May 2005, the Wireless USB Promoter Group announced the completion of the Wireless USB specification. Companies like Ellisys and LeCroy are supplying development support tools to facilitate early introduction of the technology.


In June 2006, USB Implementers Forum (USB-IF) offered the first five-way, multi-vendor interoperable demonstration of Certified Wireless USB. A laptop with an Intel host adapter using an Alereon PHY was used to transfer high definition video from a Philips wireless semiconductor solution with a Realtek PHY, all using Microsoft Windows XP drivers developed for Wireless USB. The USB Implementers Forum, USB-IF, is a non-profit organisation to promote and support the Universal Serial Bus. ... Intel Corporation (NASDAQ: INTC, SEHK: 4335), founded in 1968 as Integrated Electronics Corporation, is an American multinational corporation that is best known for designing and manufacturing microprocessors and specialized integrated circuits. ... Philips HQ in Amsterdam Koninklijke Philips Electronics N.V. (Royal Philips Electronics N.V.), usually known as Philips, (Euronext: PHIA, NYSE: PHG) is one of the largest electronics companies in the world. ... Realtek Semiconductor Corp. ... Microsoft is one of few companies engaging itself in the console wars Where they are up against sony, nintendo, and of course sharps new console which may cause a threat. ...


In October 2006 the FCC approved the first complete Host Wire Adapter (HWA) and Device Wire Adapter (DWA) wireless USB solution from WiQuest Communications for both outdoor and indoor use. The abbreviation FCC can refer to: Face-centered cubic (usually fcc), a crystallographic structure Federal Communications Commission, a US government organization Farm Credit Corporation/Farm Credit Canada, a Canadian government organization Families with Children from China, an adoption support organization Florida Christian College, a college in central Florida Fresno City...


Host Wire Adapters, Device Wire Adapters, and Dual-Role Devices

The WUSB architecture allows up to 127 devices to connect directly to a host. Because there are no wires or ports, there is no longer a need for hubs.


However, to facilitate the migration from wired to wireless, WUSB introduced a new Device Wire Adapter (DWA) class. Sometimes referred to as a "WUSB hub", a DWA allows existing USB2 devices to be used wirelessly with a WUSB host.


WUSB host capability can be added to existing PCs through the use of a Host Wire Adapter (HWA). The HWA is a USB2 device that attachs externally to a desktop or laptop's USB port or internally to a laptop's MiniCard interface.


WUSB also supports Dual-Role Devices (DRDs), which in addition to being a WUSB device, can function as a host with limited capabilities. For example, a digital camera could act as a device when connected to a computer and as a host when transferring pictures directly to a printer.


Relation to Ultra-wideband (UWB)

A common source of confusion is about the relationship between WUSB, WiMedia, and UWB. The UWB and WUSB technologies are not the same, and the terms WUSB and UWB are not synonymous.


UWB is a radio platform promulgated by the WiMedia Alliance. WUSB is a protocol promulgated by the USB-IF that uses WiMedia's UWB radio platform. Other protocols that have announced their intention to use WiMedia's UWB radio platform include Bluetooth, Wireless 1394, and WiNet. The WiMedia Alliance is a not-for-profit open industry association that promotes and enables the rapid adoption, regulation, standardization and multi-vendor interoperability of ultra-wideband (UWB) worldwide. ... The USB Implementers Forum, USB-IF, is a non-profit organisation to promote and support the Universal Serial Bus. ...


Competitors: Certified Wireless USB vs WirelessUSB™

WirelessUSB

"WirelessUSB" by Cypress Semiconductor is not related to "Certified Wireless USB". Cypress Semiconductor began operations in 1982 and listed publicly in 1986. ...


Cypress's "WirelessUSB" is a protocol that uses the 2.4 GHz band with a range from 10 meters (at max 1 Mbit/s) to 50 meters (at max 62.5 kbit/s) and is designed for Human Interface Devices (HIDs), with current offerings from companies such as Belkin, Logitech, and Virtual Ink. A human interface device or HID is a type of computer device that interacts directly with and takes input from humans, such as the computer keyboard, computer mouse, joystick, graphics tablet, and the like. ... Belkin Corporation is a global manufacturer of computer hardware which specializes in connectivity devices. ... Logitechs Silicon Valley office in Fremont Logitech International S.A. (SWX: LOGN, NASDAQ: LOGI), headquartered in Romanel-sur-Morges, Switzerland, is the holding company for Logitech Group, one of the industry leaders in the personal peripheral market. ... An Interactive Whiteboard is an electronic whiteboard writing surface which can capture writing electronically in group presentation situations such as teaching. ...


UWB

Other forms of Wireless USB such as those to be offered on the competing UWB technology based on Freescale pulse method are also not approved by the IEEE. The same is also true for other RF based Wire replacement systems which can carry USB. The result is that the name 'Certified Wireless USB' had to be adopted to allow consumers to identify which products would be adherent to the standard and would support the correct protocol and data rates. // Ultra-wideband (also UWB, and ultra-wide-band, ultra-wide band, etc. ... The Institute of Electrical and Electronics Engineers or IEEE (pronounced as eye-triple-ee) is an international non-profit, professional organization incorporated in the State of New York, United States. ...


References

See also

Bluetooth logo Bluetooth is an industrial specification for wireless personal area networks (PANs). ... Wibree is a digital radio technology (intended to become an open standard of wireless communications) designed for ultra low power consumption (button cell batteries) within a short range (10 meters / 30 feet) based around low-cost transceiver microchips in each device. ... WirelessHD is an industry-led effort to define a specification for the next generation wireless digital network interface specification for wireless high-definition signal transmission for consumer electronics products. ... ZigBee is the name of a specification for a suite of high level communication protocols using small, low-power digital radios based on the IEEE 802. ...

External links


  Results from FactBites:
 
Wireless USB - Wikipedia, the free encyclopedia (815 words)
Wireless USB (WUSB), from the USB Implementers Forum, is a new short-ranged, high-bandwidth wireless extension to USB intended to combine the speed and security of wired technology with the ease-of-use of wireless technology.
The Wireless USB Promoter Group was formed in February 2004 to define the Wireless USB specification.
Other forms of Wireless USB such as those to be offered on the competing UWB technology based on Freescale pulse method are also not approved by the USB Sig or the IEEE.
Universal Serial Bus - Wikipedia, the free encyclopedia (6036 words)
Wireless USB is a standard being developed to extend the USB standard while maintaining backwards compatibility with USB 1.1 and USB 2.0 on the protocol level.
Wireless USB is intended as a cable-replacement technology, and will use Ultra wideband wireless technology for data rates of up to 480 Mbit/s.
Wireless USB is well suited to wireless connection of PC centric devices, just as Bluetooth is now widely used for mobile phone centric personal networks (at much lower data rates).
  More results at FactBites »

 
 

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