Vision systems and industrial I/O may benefit from a recently developed wireless scheme for connecting peripherals to computers. The first generation of wireless USB interfacing is likely to take the format depicted here. The wireless USB connection is between a wireless hub and dongles plugged into USB-certified devices such as cameras, mice, PDAs, or display terminals. Belkin Corp. recently developed hub/dongle connections for the Cable-free USB format. An alternative approach comes from Gefen Inc., which makes small sender/receiver units that fit in an ordinary USB port to provide a Cable-free USB connection. Billed as the world's first UWB image-transfer board, this device from FotoNation, San Francisco, permits wireless transfer of photos at 200-Mbit/sec rates between cameras and PCs. It follows the PTP-IP (picture transfer protocol IP) standard and implements WiMedia-style Wireless USB through use of a UWB chip from Wisair Corp. The difference between direct sequence and OFDM transmission techniques can be illustrated by time and frequency domain plots like these devised by authors at Intel Corp. Direct-sequence transmissions use super-short pulses at differing frequencies. The resulting bandwidth is quite wide. OFDM, sometimes referred to as multiband UWB, uses several carriers at different frequencies and initiated at different times. The resulting frequency domain plot consists of frequency bands with minimal overlap. January's Consumer Electronics Show marked the first public demonstration of wireless USB equipment. USB, for Universal Serial Bus, is the standard used for connecting computers to mice, scanners, digital cameras, printers, and so forth. The wireless version of USB eliminates the cord between the computer and the peripheral by substituting a radio link. The use of RF on wireless USB lets the peripheral sit as far as 30 ft away, though the highest transmission speeds come if the separation is only 10 ft or less. And the peripheral needn't be
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USB cables are designed specifically to connect devices that use the universal serial bus (USB) protocol. They are used to connect personal computers (PCs) and peripherals such as mice, keyboards, printers, digital cameras, and mass storage devices. USB cables are also used in factory environments, sometimes with a locking mechanism, for connecting USB industrial I/O devices to computers.
USB products is a general search form that covers a wide range of devices that use the universal serial bus (USB) standard. USB products include host controllers, adapters, hard drives, CD-ROM drives, hubs, modems, faxes, and routers.
USB connectors are used with universal serial bus (USB) ports. They can be used to connect USB products together, or to connect USB wires and peripherals to other standard port types.
Wireless systems consist of combined RF components such as transmitters, receivers, transceivers, filters, down / up converters, antennas and antenna positioners.
Delphi offers a Universal Serial Bus (USB) consumer port that serves as an interface between the vehicle's electrical system and external consumer equipment. The Delphi USB consumer port enables...
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Belkins Folio Kickstand Case protects your Zune and has a handy stand for your on-the-go viewing pleasure. Belkin has introduced its Cable-Free USB Hub, which utilizes cutting-edge UWB...
A secure, wireless ultrawideband (UWB) data-communication network could help monitor U.S. Air Force bases and DOE nuclear facilities as well as control remotely operated weapon systems, say developers...
Universal serial bus (USB) is a 4-wire, 12-Mbps serial bus for low-to-medium speed peripheral device connections to personal computers (PC), including keyboards, mice, modems, printers, joysticks,...
AN1140 USB Embedded Host Stack Most USB peripheral devices are divided into Author: Kim Otten categories, called classes. Each class has special Microchip Technology Inc. requirements regarding its...
Add A Pinch Of Wireless In most instances, your existing wired network consists of two or more computers networked with Ethernet patch cable and some form of central connecting device, such as a hub,...