This article is about the proprietary variant USB standard. Self powered conventional USB devices may also colloquially be referred to as powered USB cf. e.g. USB hub Power self powered USB hubs . File Powered USB.jpg thumb right 300px 12 V and 24 V powered USB sockets, on an NCR Corporation NCR cash register Powered USB , also known as Retail USB , USB Plus Power , and USB Power , is an addition to the Universal Serial Bus standard that allows for higher power devices to obtain power through their USB host instead of requiring an independent power supply or external AC adapter . It is mostly ... s. Powered USB, as a proprietary variant of USB, was developed by IBM , NCR Corporation NCR , and FCI Berg but is not endorsed by the USB Implementers Forum USB IF . ref http www.poweredusb.org whatispusb.html What is Powered USB? ref ref name Powered USB in Retail http www.poweredusb.org usbstandards.html Powered USB in Retail ref IBM, who owns the patents to Powered USB, ref US patent 6086430 ref ... and Answers url http www.poweredusb.org faqs.html 070727 poweredusb.org ref Powered USB uses a more complex connector than standard USB, maintaining the standard USB interface for data communications ... connector accepts a standard USB plug and the top connector takes a power plug. image ... at up to 6 A. USB 1.0 and 2.0 supplies 5 V at up to 0.5 A 2.5 W . ref http www.poweredusb.org pdf PoweredUSB v08g.pdf Powered USB Electro Mechanical Specification v0.8g ref USB 3.0 supplies 5 V at up to 0.9 A 4.5 W . ref http www.everythingusb.com superspeed usb.html SuperSpeed USB 3.0 FAQ ref As each Powered USB plug provides one of three voltages, the plugs ... s voltage. ref name Powered USB in Retail Extending USB s power capability is a response to Power ... Bus USB 3.0 USB 3.0 s once the 10 Gbit s Ethernet standard is supported. The combination of USB ... USB can compete over longer distances effectively. References Reflist External links http www.poweredusb.org ... more details
Refimprove date December 2009 Image usbphone.gif thumb right alt A USB phone USB phone USBphone looks like a traditional telephone , but it has a Universal Serial Bus USB connector instead of an RJ11, RJ14, RJ25 RJ 11 . It may be used with most softphone s and services like Skype , Sipnet, Sippoint Mini, Net2Phone , MSN Messenger , NetMeeting , Xlite . Category Telephony equipment Category Computer peripherals Category Universal Serial Bus Technology stub bg USB ... more details
A satellite modem or sat modem is a modem used to establish data transfer s using a communications satellite as a relay . There is a wide range of satellite modems from cheap devices for home internet access to expensive multifunctional equipment for enterprise use. A modem stands for modulator demodulator . A satellite modem s main function is to transform an input bitstream to a radio signal and vice versa. There are some devices that include only a demodulator and no modulator, thus only allowing data to be downloaded by satellite that are also referred to as satellite modems . These devices are used in satellite Internet access in this case uploaded data is transferred through a conventional PSTN modem or an ADSL modem . Satellite link Main Satellite link A satellite modem is not the only ... to a modem from Data terminal equipment e.g. a computer . The modem usually has Intermediate ... by a modem, and at last handled by data terminal equipment. The LNB is usually powered by the modem ... modem are modulation and demodulation. Satellite communication standards also define error correction ... to control the distant end modem Automatic Uplink Power Control AUPC , that is, adjusting the output ... Satellite modem block diagram.png right thumb 500px Satellite modem s internal structure Probably the best way of understanding modem s work is to look at its internal structure. A block diagram of a generic satellite modem is shown on the image. Almost all parts are optional. Analog tract After a Digital ... multiplexed data stream to several streams which it consists of. Satellite modem doesn t have so many ... . Applications Image ASTRA2Connect Modem front.jpg thumb right The IPmodem satellite modem ... http www.newtec.eu Newtec satellite modem manufacturer http www.astra2connect.com ASTRA2Connect satellite internet provider http www.adaptivem2m.com satellite modem gsm gprs satellite modem.htm GSM GPRS satellite modem provider Satcomm Category Telecommunications equipment Category Telecommunications ... more details
Infobox VG title Modem Wars image File ModemWarsTitleScreen.png 250px Modem Wars caption Title screen developer Ozark Softscape publisher Electronic Arts designer Danielle Bunten Berry Danielle Bunten released 1988 genre Real Time Tactics Citation needed date March 2010 modes Multiplayer ratings N A platforms Commodore 64 C64 br DOS media Floppy disk s requirements Modem Wars is a 1988 Real Time Tactics Citation needed date March 2010 game developed by Ozark Softscape and published by Electronic Arts for the IBM PC and Commodore 64 platforms. ref http www.gamespot.com gamespot features pc unsung heroes sec2 07.html Unsung Heroes Ground Breaking Games Bot generated title ref Summary The first multi computer online game. Modem Wars was played over a modem connection between two machines via telephone or null modem serial connection , with both players controlling a group of robotic units trying to eliminate the opponent s command center. Features such as fog of war , varied unit types, terrain, and formations, all now standards in the genre, were implemented despite the daunting technical ... that Modem Wars was perhaps t he closest predecessor to the groundbreaking and influential Sega ... 1up.com accessdate 2009 01 04 ref Of specific technical interest, Modem Wars has been lauded for its ..., but you accumulate points as if it were a sports game. The name was changed to Modem Wars to call attention to how the game is intended to be played against other humans via modem. The computer AI ... Daniel periodical Computer Gaming World title Modem Wars year 1989 pages 32 35 ref The game also ... noted designer Dan Bunten s intentions for the game blockquote Dan would like us to believe that Modem Wars is a wargame for the rest of us . That is, Modem Wars is a fast moving game that does not get bogged down in the minutia of detail so often associated with wargames. Dan feels that Modem ... modem wars.htm Theodor Lauppert s review Category 1988 video games Category Commodore 64 games Category ... more details
Orphan date February 2009 For the official USBCell product, see USBCell A USB cell is a Rechargeable battery rechargeable cell that is charged through any standard Universal Serial Bus USB port. Produced by Moixa , the rechargeable cartridge comes in the AA battery size, and can be charged via a computer using a built in USB port. ref cite web url http www.engadget.com 2007 10 16 rechargeable usb battery works in aa ready devices title Rechargeable USB battery works in AA ready devices accessdate 2009 08 31 last Murph first Darren date 2007 10 06 publisher Engaget ref The battery is a nickel metal hydride battery that is capable of over 500 recharges. ref http www.computeractive.co.uk computeractive news 2164455 rechargeable batteries New rechargeable batteries meet environmental needs , 19 Sep 2006 ref References References External links http www.usbcell.com The official USB Cell website DEFAULTSORT Usb Cell Category Rechargeable batteries computer stub ... more details
Radio modems transfer data wirelessly across a range of up to tens of kilometres. Using radio modems is a modern way to create Private Radio Networks PRN . Private radio networks are used in industrial critical applications, when real time data communication is needed. Also Radio Data Modem enables user to be independent of telecommunication or satellite network operators. In most cases users use licensed frequencies either in UHF or VHF band. Licensed frequency is reserved for given user in certain area thus ensuring that there is less likelihood to have radio interference from other RF transmitters . Also licence free frequencies are available in most countries, enabling easy implementation, but at the same time other users may use same frequency, thus making it possible that given frequency is blocked. Typical users for Radio Data Modems are Surveying Land survey differential GPS , fleet management applications, SCADA applications utility distribution networks , automated meter reading AMR , telemetry applications and many more. Since applications usually require high reliability of data transfer and very high uptime, radio performance plays a key role. Factors influencing radio performance are Antenna radio antenna height and type, the Sensitivity electronics sensitivity of the radio, the output power of the radio and the complete system design. References Unreferenced date April 2009 reflist Telecommunications Telecommunications stub DEFAULTSORT Radio Modem Category Wireless networking sv Radiomodem ... more details
The Pennywhistle was an early acoustic coupler modem originally designed and built by Lee Felsenstein in 1973, and later commercialized and offered for sale in 1976. It was one of the earliest modems available for hobbyist computer users. ref Roy Allan, A History of the Personal Computer The People and the Technology , Allan Publishing, 2001, pg. 17 ref Like most acoustic coupler modems, the Pennywhistle was replaced by the Hayes Microcomputer Products The Smartmodem Hayes Smartmodem and similar models from the early 1980s. History Origins As part of the effort that would lead to the Community Memory bulletin board system , Lee Felsenstein had found an Omnitech modem or something like that . ref name cl Designed to operate at rates as high as 300 bits per second bps , the modem was able to change its speed to match conditions or differences in the modems at either end. In general it was good for only 100 bps, the speed that was used for much of its operational life. The modem was attached to a Teletype Model 33 ASR machine at Leopold s Records in Berkeley, California and connected to the SDS 940 mainframe computer in San Francisco . ref name cl Crosby, ON LINE AT LEOPOLD S ref Felsenstein was unimpressed by the Omnitech design, especially its price of 300, ref name cl and convinced himself he could design a better version. He found that one half of the design problem was easy generating the proper tones for transmission was simple. The other half of the problem was much harder listening to the incoming signal and processing the tones back out. The traditional solution was to generate a local reference tone and compare it to the incoming signal, but this was subject ... as mundane as temperature changes. ref name cm Crosby, PENNYWHISTLE MODEM ref Felsenstein found two ... signal coming from the PLL. These improvements meant the modem was able to follow changes in the reference ..., a modem that he had previously designed. Spergel was able to cobble together a version of the modem ... more details
primary sources date November 2011 Image USBChristmasTree.JPG right thumb 250px A USB powered decorative Christmas tree A USB decoration is a decorative device that uses the Universal Serial Bus USB connector ... lightweight devices e.g. a small lamp on a gooseneck stalk use the USB connector itself for mechanical ... or amusing Blinkenlights displays. Today, USB powered decorations are the most prominently seen examples, since the popularity of Universal Serial Bus USB lets them operate on most modern computers. USB Interface main Universal Serial Bus Many USB decorations do not use the communications features of the USB bus, or fully comply with USB standard power discipline. This can interfere with the purposes for which the USB bus was designed, especially if the device suddenly attempts to draw ... identifying itself first. A newly connected device is supposed to then use the USB protocol to communicate ... USB hub , which is limited to 400 mA if it has no external power connection and is drawing ... to run four low power decorations. If instead a USB hub has an external power adapter , it may ... to a computer host, but can serve as a stand alone power source for USB decorations that need only DC power. Decorative usage USB decorations may have no useful functionality other than aesthetic ... www.gadgets.co.uk item USBDISCO USB Disco Ball.html USB Disco Ball gadgets.co.uk ref aquariums, ref http www.x tremegeek.com templates SearchDetail.asp?productID 6932 USB Mini Desktop Aquarium X treme Geek ref terrariums, ref http www.everythingusb.com usb greenhouse 13176.html ref waterfalls ref http www.everythingusb.com usb waterfall 14828.html ref and pole dancers ref name top15 http www.networkworld.com community ?q node 15886&ts0hb &story htbox The Top 15 USB geek gadgets ref are all available in USB powered versions. Arguably, there are many USB based decorations embedded in existing products&mdash ... that are powered by car adapter plugs. USB adapters for automobiles and built in USB ports in newer ... more details
Image USB hub.jpg thumb A 4 port long cable external box USB hub Image Hub ports.jpeg thumb A 4 port compact design USB hub upstream and downstream ports shown A USB hub is a device that expands a single Universal Serial Bus USB port into several so that there are more ports available to connect devices to a host system. USB hubs are often built into equipment such as computers, computer keyboard keyboards , computer display monitors , or computer printer printers . When such a device has many USB ports they all usually stem from one or two internal USB hubs rather than each port having independent USB circuitry. Physically separate USB hubs come in a wide variety of Computer form factor form ... cable, to small designs that can be directly plugged into a USB port see the compact design ... of available ports. Laptop computers may be equipped with many USB ports, but an external USB ... sharing hubs , which effectively are the reverse of a USB hub, allowing several PCs to access ... point too. Modern KVM switch es can also often share USB devices between several computers. Physical layout Image USB Hub Internals.jpg thumb 250px left A star short cable external USB hub with the plastic casing removed A USB network is built from USB hubs connected downstream to USB ports, which themselves may stem from USB hubs. USB hubs can extend a USB network to a maximum of 127 ports. The USB ... hubs. USB ports are often closely spaced. Consequentially plugging a device into one port may physically ... such as a USB flash drive . A horizontal array of horizontal sockets may be easy to fabricate ... completely. Length limitations USB cables are limited to 3m for low speed USB 1.1 device. A hub can be used as an active USB repeater to extend cable length for up to 5m lengths at a time. Active Cables ... bus powered, externally powered non bus powered USB hubs would likely be required for some of the segments ... s USB interconnection interface . It does not need a separate power connection. However, many ... more details
technical date July 2011 File USB OTG Logo.svg thumb USB On The Go logo USB On The Go , often abbreviated USB OTG , is a specification that allows USB device s such as digital audio player s or mobile phone s to act as a host allowing a USB flash drive , computer mouse mouse , or computer keyboard keyboard to be attached. Architecture Standard USB uses a master slave technology master slave architecture a USB host acts as the protocol master, and a USB device acts as the slave. Only the host can ... the B end acts as the default peripheral known as the B device . USB On The Go does not preclude using a USB hub , but it describes host peripheral role swapping only for the case of a one to one connection .... Specifications USB OTG is part of a supplement ref http www.usb.org developers onthego On The Go and Embedded Host Supplement to the USB 2.0 Specification Revision 2.0 plus ECN and errata, July 14, 2011 ref to the Universal Serial Bus USB 2.0 specification originally agreed upon in late 2001 and later revised. ref name Heise http www.heise.de english USB On the Go Specification Settled newsticker news 23699 USB On the Go Specification Settled . Heise.de , Heinz Heise . dead link date December 2010 ... Host which has targeted abilities and the same USB Standard A port used by PCs. SuperSpeed OTG devices, Embedded Hosts and peripherals are supported through the USB On The Go and Embedded Host Supplement ref http www.usb.org developers onthego On The Go and Embedded Host Supplement to the USB 3.0 Specification Revision 1.0, July 1, 2011 ref to the Universal Serial Bus USB 3.0 specification. Protocols The USB On The Go and Embedded Host Supplement to the USB 2.0 specification introduced ... SRP and Host Negotiation Protocol HNP . ADP allows an OTG device, Embedded host or USB device to determine attachment status in the absence of power on the USB bus. This enables both insertion based ... measuring the capacitance on the USB port to determine whether there is another device attached ... more details
Infobox Company company name USB Corporation company logo Image USB Logo.png vector logo company type genre foundation 1980s founder location city Cleveland, OH location country USA origins key people area served industry products revenue operating income net income num employees parent divisions subsid owner company slogan Fueling Innovation in Life Science sup TM sup homepage http www.usbweb.com www.usbweb.com dissolved footnotes USB Corporation offers life science products for use in basic research, drug discovery and molecular diagnostics. The company history reaches back to the 1980s, as United States Biochemical, known for Sequenase DNA Polymerase , a genetically modified enzyme used to develop the first easy to use DNA sequencing products. Today, USB focuses on molecular biology and biochemical products for DNA amplification PCR , purification, cloning , protein studies and RNA analysis. USB was acquired by Affymetrix at the start of 2008. Category Research support companies Category Companies based in Cleveland, Ohio US company stub ... more details
Wireless USB.svg thumb The Certified Wireless USB logo Wireless USB is a short range, high bandwidth wireless radio communication protocol created by the Wireless USB Promoter Group . 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 distinguish it from the competing UWB standard. Wireless USB is based on the WiMedia Alliance s Ultra WideBand UWB common radio platform ... USB is used in game controller s, printer computing printer s, scanner computing scanner s, digital ... a Wireless USB universal docking station in August, 2008. It is also suitable for transferring parallel video streams, while utilizing the Wireless USB over Ultra wideband bandwidth. Wireless USB vs. 60 GHz A few issues differentiate Wireless USB from the use of the 60 GHz band as promoted by the Wireless ... USB is based on the Ultra WideBand UWB platform, which operates in the 3.1 to 10.6 GHz frequency ... chips, which are less suitable for mobile units or devices. Development The Wireless USB Promoter Group was formed in February 2004 to define the Wireless USB protocol computing protocol . The group ... Corporation , Philips and Samsung . In May 2005, the Wireless USB Promoter Group announced the completion of the Wireless USB specification. In June 2006, five companies showed the first multi vendor interoperability demonstration of Wireless USB. A laptop with an Intel host adapter using an Alereon ... with a Realtek PHY, all using Microsoft Windows XP drivers developed for Wireless USB. In October 2006 ... and Device Wire Adapter DWA wireless USB solution from WiQuest Communications for both outdoor and indoor ... for those PCs that do not currently include Wireless USB. In 2008, a new Wireless USB Docking ... product on the market to support video and graphics over a USB connection, by using DisplayLink USB graphics technology. Kensington s Docking Station enables wireless connectivity between a notebook ... more details
unreferenced date July 2010 file Usbmicroscope3.jpg thumb An insect observed with a USB microscope. file 2008Computex DnI Award AnMo Dino Lite Digital Microscope.jpg thumb A miniature USB microscope. A USB microscope is a low powered digital microscope which connects to a computer, normally via a USB port. They are widely available at low cost commercially. In essence USB microscopes are a webcam with a high powered macro lens and generally do not use transillumination but rely on incident light instead. As the camera attaches directly to the USB port of a computer eyepieces are not required and the images are shown directly on the monitor. They offer modest magnifications up to about 200 without the need to use eyepieces at very low cost, and illumination is in built. Usage Images can be recorded and stored similar to a webcam on the computer. The camera is usually fitted with a light source, although extra sources such as a Optical fiber fiber optic light can be used to highlight features of interest in the object. They generally offer a large depth of field at the cost of a smaller numerical aperture and so amount of light collected. USB microscopes are most useful when examining flat objects such as coin s, printed circuit board s, or documents such as banknote s. Their use is generally similar to that of stereo microscope s. USB microscopes offer the great advantage of being much less bulky than a conventional stereo microscope so can be used in the field, attached to a laptop computer . Effective magnification The precise magnification is determined by the working distance between the camera and the object, and good supports are needed to control the image. Although convenient, the magnifying abilities of these instruments are often overstated typically offering 200 magnification, this claim is based usually on 25x to 30x actual magnification which is then further magnified by the expansion of the image by display on screen. References reflist DEFAULTSORT Usb Microscope ... more details
Advert date May 2009 The USB Stickler is a patented device currently in production that is specially designed to transfer and store data or digital images between a digital camera, cell phone and computer by uniquely connecting one of its USB connectors to the device of choice. The USB Stickler was invented by Brendan Keith Schenk . As explained in its http usbstickler.com website , it provides consumers, photographers and cell phone users with a convenient, portable, cost effective method storage device that will be able to easily interface with a digital camera or cell phone for the transfer and storage of large amounts of data and or digital images, thereby eliminating the need to access large, bulky devices such as a laptop or personal computer for an extended period of time. Being readily usable, it further provides the user the ability to connect to a laptop or computer for the transfer of data and or digital images from the storage device without the need for specialized adapters, cords or the like. Category computer storage devices ... more details
Orphan date August 2010 The USB Gecko is a Wii Gamecube development and hacking tool which connects to the USB port of the computer, and to the GameCube memory slot of the Wii. It can be used to upload homebrew to the wii, or act as a remote terminal under Wii Linux and as a Debugging remote debugging tool. The manufacturer has stopped producing these. Hardware The USB Gecko is a two step converter to convert EXI serial usb. It is a fancy serial port. All the fun is provided by software. The EXI interrupt cannot be triggered from the PC because the pin on the Wii side is left unconnected. In theory one could open up the USB Gecko and run a trace from that pin to one of the many unused pins on the CPLD, reprogram the CPLD, and be able to trigger the EXI interrupt from the PC side. This can be seen in the image at right. The pins on the bottom connector are numbered from left to right 12 down to 1, even numbers being on the bottom row, odd numbers being on the top row. Pin 3 is the EXI interrupt pin, which is unconnected for some unknown reason. The pins on the front side are what connect to the Wii EXI port. The pins on the back side connect to the Altera CPLD s JTAG pins for programming. The pins are, in order from left to right TDO, 3.3V, TMS, TDI, TCK, GND. The Gecko has 3 chips The USB interface is provided by the FT245RL which converts USB to two 8 bit bidirectional FIFOs. One sends data to the Wii 128 byte capacity , the other receives data from the Wii 256 byte capacity . The FIFOs are connected to an ALTERA CPLD Complex Programmable Logic Device EPM570T100C5N which converts the parallel data to the serial datastream needed for the Wii s EXI port. There is a 512K byte flashrom, the SST39VF040 which is accessible only on the Wii side through the Altera CPLD. This is not strictly necessary for the USB Gecko s main functionality. Command Protocol The PC side sends bytes ... pre External links http wiibrew.org WiiBrew http www.usbgecko.com USB Gecko homepage http ... more details
of companies that developed USB. Notable members include Apple Computer , Hewlett Packard , NEC Corporation NEC , Microsoft , Intel , and Agere Systems . The working committees within USB IF are Device Working Group Compliance Committee Marketing Committee On The Go Working Group The USB ...The USB Implementers Forum USB IF is a non profit organisation to promote and support the Universal Serial Bus . Its main activities are the promotion and marketing of USB, Wireless USB, USB On The Go .... The developer forums cover USB hard and software development and is not an end user Forum. Obtaining a vendor ID A vendor ID is necessary for developing a USB product. The USB IF is responsible for issuing USB vendor ID s to product manufacturers. Despite the purported non profit nature of this organisation ... of a USB device wishes to use the Logo then this becomes a 2 year licensing fee. ref http www.usb.org developers vendor How to get a vendor ID from the USB IF ref Some microcontroller manufacturers ... http www.dream.fr pdf General Application Notes USB 20Vendor 20ID 20Sublicense.pdf Dream S.A.S. USB Vendor ID Application ref FTDI ref http www.ftdichip.com Documents technicalnotes tn 100 usb vid pid guidelines.pdf FTDI USB Vendor ID Application ref Luminary Micro ref http www.luminarymicro.com products luminary micro usb vid sublicense.html Luminary Micro now part of Texas Instruments USB Vendor ... APPLICATION 20FOR 20SUBLICENSE 20TO 20USB 20VID 20revised 2012110.pdf Microchip USB Vendor ID Application ... m0 microcontrollers with integrated usb drivers.html NXP to offer global USB Vendor ID program ref Silicon Labs ref http www.silabs.com products mcu Pages request PID.aspx Silicon Labs USB Vendor ID ... 1769 STMicroelectronics USB Vendor ID Application ref Texas Instruments ref http focus.ti.com en download mcu application for sublicense.pdf Texas Instruments USB Vendor ID Application ref See also Personal Computer Memory Card International Association PCMCIA USB Wireless USBUSB On The Go References ... more details
USB communications device class or USB CDC is a composite Universal Serial Bus device class. It provides a single Universal Serial Bus Device classes device class . The class may include more than one interface, such as a custom control interface, data interface, audio, or USB mass storage device class mass storage related interfaces. The communications device class is primarily used for modem s. However it also supports ISDN and fax machines and telephony applications for performing regular voice calls. Additionally this device class supports computer network ing akin to a network card , providing an interface for transmitting Ethernet or Asynchronous Transfer Mode ATM frames onto some physical media. Microsoft Windows versions prior to Windows Vista do not support the networking parts of the USB CDC, instead promoting Microsoft s own derivative named RNDIS Microsoft RNDIS , a serialized version of the Network Driver Interface Specification Microsoft NDIS Network Driver Interface Specification . With a vendor supplied INF file , Windows Vista supports USB CDC and USB WMCDC. ref http msdn.microsoft.com en us library ff538833.aspx Support for the Wireless Mobile Communication Device Class ref This class can be used for industrial equipment such as CNC machinery to allow upgrading from ... driver works transparently emulating the USB as a serial port. Chip manufacturers like Microchip and Atmel provide easy to use solutions for developing USB to serial converters This class is also implemented in embedded system s like mobile phone s so that a phone may be used as a modem, fax or network ... External links http www.usb.org developers devclass docs USB IF s Approved Class Specification ... oriented about USB host to host, CDC ethernet class and RNDIS http www.atmel.com dyn resources prod documents doc4322.pdf App Note, Migrating from RS 232 to USB Bridge Specification . Explains the use of USB CDC Communications Device Class ACM Abstract Control Model to emulate serial ports over USB ... more details
Refimprove date August 2010 Main Modem Voice modem is a term commonly used to describe an analog telephone data modem with a built in capability of transmitting and receiving voice recordings over the phone ... command set used for data modems, in which the host PC commands the modem via a series of commands ... consistent throughout the industry. Because voice mode is not the prototypical use for a modem ... voice modem depend greatly upon the intended application, and include Reliable operation. Many modems ... ID as used in North America is missing from the vast majority of modems. Nearly all modem chipsets ... of death blue screens of death , or simple inoperability of all but a single modem. External RS232 based serial modems do not have this limitation because each modem contains its own microprocessor and is unaware of other modems on the same host. USB modems may or may not have this problem, because some USB modems are simply serial modems with a USB to serial converter chipset in which case there should be no problem , and other USB modems are host controlled and are essentially externally attached Winmodems in which case the problem may persist . Plus versus Hash Each voice modem platform tends ... on a modem by issuing the following command AT FCLASS ? This command is usually supported containing the plus sign whether a modem supports plus or the hash command set, because the command which stands for fax class is part of the industry standard fax commands which always use the plus. A modem ... 8. A modem not supporting voice will respond with ERROR , or with a list of numbers not including 8 ... ? as well. Entering voice mode The command AT FCLASS 8 or AT CLS 8 will put the modem in voice ..., most modems will respond with Data Link Escape DLE messages instead of or in addition to normal modem ... reported by each modem is specific to its chipset and documented in its reference guide. Querying the modem s capabilities The command AT VLS ? or AT VLS ? usually returns a list of operating modes ... more details
Daughter Card GeoPort , a similar standard for the Apple Macintosh dead link http www.computer info.co.uk ... Category Motherboard expansion slot de Audio Modem Riser es Audio modem riser gl Audio Modem Riser ja Audio and Modem Riser pl AMR z cze p yty g wnej pt Audio Modem Riser ru AMR ... more details
Merge to Wireless modem date October 2011 for the smart card system termed ConnectCard Port Authority of Allegheny County Fare structure File Option GT 3G UMTS card.jpg thumb One 3G connect card A mobile broadband modem , also known as a connect card or data card , allows a laptop , a personal computer or a router computing router to connect to receive Internet access via mobile broadband . History Early connect cards used the PCMCIA or ExpressCard ports, commonly found on legacy laptops. The expression connect card instead of connection card had been registered and used the first time by Vodafone as brand for its products but now is become a brandnomer or genericized trademark used in colloquial or commerce commercial speech for similar product, made by different manufacturers, too. Major producers are Huawei , Option N.V. , Novatel Wireless . More recently, the expression connect card is also used to identify internet USB keys. ref http www.wireless.att.com cell phone service cell phones pc cards.jsp Connect cards on At&t ref Standard First cards were based on the GPRS standard, then were developed for the EDGE standard. Modern cards use advanced UMTS standard like the HSUPA and HSDPA . References reflist See also Mobile broadband Option N.V. Huawei Commons cat Wireless modems Wireless modems Category Modems Category PCMCIA Category ExpressCards fr Cl 3G it connect card de UMTS Datenkarte ... more details
X 10.4.9 update Includes iChat support for USB Video Class webcams. Apple Inc. April 8, 2008. Retrieved ...The USB video device class also USB video class or UVC is a Universal Serial Bus USB Universal serial bus Device classes device class that describes devices capable of streaming video like Webcam webcams , digital Camcorder camcorders , Transcoding transcoders , analog video converters, TV tuner card television tuners , and Still camera still image cameras . The latest revision of the USB video class specification carries the version number 1.1 and was defined by the USB Implementers Forum in a set of documents describing both the basic protocol and the different payload formats ref http www.usb.org developers devclass docs USB Video Class 1 1.zip USB Device Class Definition for Video Devices, Revision 1.1 , June 2005 ref . See also the List of USB video class devices Devices Webcams Webcams were among the first devices to support the UVC standard and they are currently the most popular UVC ... on releases, see the revision history section of the published USB UVC documents, available from ... dynamic and fixed frame rate devices RR0043 . Operating system support Linux USB video class support ...? Apple Mac OS X Mac OS X ships with a UVC driver included since version 10.4.3, Citation needed date ... kernel USB mediadrivers work in userspace, by using an asynchronous USB interface. FreeBSD is the first OS to have an entire highspeed USB driver in userland. NetBSD NetBSD added the uvideo http netbsd.gw.com ... of the http www.opensolaris.org os community device drivers projects usb uvc usbvc driver for OpenSolaris ... 56 and later. Microsoft Windows Windows XP has a class driver for USB video class devices since ... more capabilities is also available. ref http support.microsoft.com kb 899271 The updated USB ... references compu hardware stub Category Universal Serial Bus Category Videotelephony de USB Video Class fr USB video device class zh USB ... more details
cleanup date February 2010 Orphan date April 2009 Zenith Cable Modem is one of the first proprietary cable modem s deployed at limited scale. There were 2 basic models, one operating at 500 kbit s, the other at 4 Mbit s using BPSK and about a 25 alpha. History The Zenith cable modem was originally developed ... to support the Prodigy Cable Modem trial begun on a 1500 homes passed fiber node in El Cajon, CA ... of a Prodigy server in the El Cajon headend, connected via the Microchannel based cable modem to an Olsen ... 16 bit 16 bit version. The new design dropped the onboard CPU. The modem connected to the card using ... were powered by the PC. The new modem was frequency agile, with a configuration utility that ran ... prior to installation, and tracked the subscriber to modem MAC address in an Microsoft Excel Excel spreadsheet , as it was too many digits to fit into the billing system. Product Versions White modem, from 1980 s based design br Black Internal Modem, Homeworx br External Modem, 1 Ethernet Jack br External Modem, 2 Ethernet Jacks br HW Revision A First black case modem br HW Revision B Volume Production ..., San Diego University of California San Diego , and other customers. Added modem MAC address to external ... the second coax port. The modem could either operate on one coax built in diplex filter or two Headend ... a residential cable modem inside a server, and a frequency translator to convert the upstream transmit ... section date January 2010 The commercial prospects of Prodigy over cable modem came to reality when ... release 9.32, under the title Node Data Controller SNMP Provisioning a Zenith Cable Modem The physical possession of a properly installed modem connected the subscriber to the network, and the use of this modem with a packet sniffer would enable full viewing of all transmitted and received packets ... to disable a modem remotely. Installing an internal Zenith Cable Modem br Step 1 Verify there is a free .... br Step 5 Update Prodigy Software to dial in using IPX protocol over Zenith Modem instead of 2400 ... more details
of a USB drive to be encrypted automatically and transparently. Also, Windows 7 Enterprise and Ultimate Editions and Windows Server 2008 R2 provide USB drive encryption using BitLocker to Go. The Apple ...Secure USB flash drives protect the data stored on them from access by unauthorized users. USB flash ... Serial Bus USB flash drives, personal digital assistant s PDAs , advanced mobile phones and other mobile devices. Companies in particular are at risk when sensitive data are stored on unsecured USB flash ... risk of reputation damage. Major dangers of USB drives The uncontrolled use of USB drives is a major ... the following should be taken into consideration for securing USB drives assets Storage USB flash ... policies toward USB drives, and some companies ban them outright to minimize risk. The average ... from USB drives include In the UK HM Revenue & Customs lost personal details of 6,500 private pension holders In the United States a USB drive was stolen with names, grades, and social security ... 2006 08 15 thumbdrives stolen x.htm ref USB flash drives with US Army classified military information ... software like http www.usbcrypt.com USBCrypt or http www.newsoftwares.net usb secure USB Secure can be installed on your USB External drive to prevent access to your files in case your drive ... the interactions between any USB drive and the computer and storing them in a centralized database. Hardware Some USB drives do hardware encryption, in which microchips within the USB drive do automatic and transparent encryption. The cost of these USB drives can be significant. Hardware systems ... 040 veroeffentlichungen dokumente SySS Cracks Kingston USB Flash Drive.pdf ref to have a bug that potentially ... ref http www.kingston.com driveupdate ref Verbatim Corporate Secure USB Flash Drive ref http ... fileadmin ressources 040 veroeffentlichungen dokumente SySS Cracks Yet Another USB Flash Drive.pdf ... environments, where most secure USB drives are used ref name ENISA , a central management system ... more details
Unreferenced date December 2009 Command and Data modes refer to the two modes in which a computer modem ... modems. These modes exist because there is only one channel of communication between the modem and the computer, which must carry both the computer s commands to the modem, as well as the data that the modem is enlisted to transmit to the remote party over the telephone line. When a modem is in command mode , any characters sent to it are interpreted as commands for the modem to execute, per ..., if a modem receives ATDT5551212 while in the command mode, it interprets that as an instruction to dial the numbers 5551212 on the telephone, using touch tone dialing. While in command mode, the modem ..., the modem may respond with the word BUSY in response to the ATDT command, if it hears a busy signal ... directions is terminated by a carriage return . When a modem is in data mode , any characters sent to the modem are intended to be transmitted to the remote party. The modem enters data mode immediately ... by another computer modem, the modem would report the word CONNECT and then switch to data mode ... characters sent are transmitted to the remote party. When a voice capable modem is in voice data mode, any data sent to the modem is interpreted as audio data to be played over the phone line, rather ... always start out in command mode when powered up. Here are the ways a modem can switch to data mode After a successful dial out connection in response to an ATD dial command in which the modem reaches another modem. After answering the phone with the ATA answer command, if another modem is on the other ... , and connecting to another modem. Almost all modems support auto answering when given the command ... 1 second pause. The connection remains, but the modem can accept commands, such as ATH for hangup. The computer can issue the ATO command to return to data mode. The computer instructed the modem ... how computers invoke the termination of a modem call nowadays the escape sequence is rarely used ... more details
Unreferenced stub auto yes date December 2009 A modem sharing device MSD , also commonly known as a line sharing device LSD , modem sharer , or line sharer , allows multiple devices to share a Serial communications serial connection. Only multipoint serial protocols such as bisync are supported. Both Synchronization computer science synchronous and asynchronous datastreams can be used. A common example would have a Tandem Computers Tandem as host connected to multiple automatic teller machine s often with a modem or Cisco Systems, Inc. Cisco router computing router in between. DEFAULTSORT Modem Sharing Device Category Networking hardware Compu hardware stub ... more details
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