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Refreshable braille display

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characters, usually by means of round-tipped pins raised through holes in a flat surface. Visually impaired computer users who cannot use a standard computer monitor can use it to read text output. Deafblind computer users may also use refreshable braille displays.
316:, which allows the user to read continuously with a stationary finger while the wheel spins at a selected speed. The braille dots are set in a simple scanning-style fashion as the dots on the wheel spin past a stationary 263:
Screen readers for graphical operating systems are especially complex, because graphical elements like windows or slidebars have to be interpreted and described in text form. Modern operating systems usually have an
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that sets the braille characters. As a result, manufacturing complexity is greatly reduced and rotating-wheel braille displays, when in actual production, should be less expensive than traditional braille displays.
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of some crystals, whereby they expand when a voltage is applied to them. Such a crystal is connected to a lever, which in turn raises the dot. There has to be a crystal for each dot of the display (
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Because of the complexity of producing a reliable display that will cope with daily wear and tear, these displays are expensive. Usually, only 40 or 80
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are also commonly used for the same task, and a blind user may switch between the two systems or use both at the same time depending on circumstances.
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is represented by vibrating the dots, and some models have a switch associated with each cell to move the cursor to that cell directly.
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A Baum David System 90 special-purpose computer for the blind, with a braille "screen" and special keyboard
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The base of a refreshable braille display often integrates a pure braille keyboard. Similar to the
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keyboard for input and braille pins for output, as well as input-only and output-only devices.
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Please help update this article to reflect recent events or newly available information.
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are displayed. Models with between 18 and 40 cells exist in some notetaker devices.
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Information on Bi-directional Refreshable Tactile Display US Patent 6,692,255
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in Belgium. In these units, braille dots are put on the edge of a spinning
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A rotating-wheel Braille display was developed in 2000 by the
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to help screen readers obtain this information, such as
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The software gathers the content of the screen from the
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Unsourced material may be challenged and removed. 397:NIST: Converting Digital Information to Braille 184:is an electro-mechanical device for displaying 306:National Institute of Standards and Technology 2210:History of computing hardware (1960s–present) 1677: 425: 226:The mechanism which raises the dots uses the 8: 2097: 1709: 1684: 1670: 1662: 795: 494: 432: 418: 410: 120:Learn how and when to remove this message 27:Device for displaying braille characters 363: 1569:American Printing House for the Blind 1345:International Phonetic Alphabet (IPA) 997:Devanagari (Hindi / Marathi / Nepali) 7: 2215:List of pioneers in computer science 58:adding citations to reliable sources 244:On some models the position of the 382:Pictures of the experimental setup 25: 403: (archived December 31, 2009) 136: 34: 45:needs additional citations for 300:Rotation-wheel Braille display 1: 2205:History of computing hardware 1337:Gardner–Salinas braille codes 1293:Gardner–Salinas braille codes 69:"Refreshable braille display" 2073:Network interface controller 1548:National Braille Association 1527:Braille Institute of America 1245:Two-cell Chinese (Shuangpin) 1870:Refreshable braille display 1812:Refreshable braille display 1428:Refreshable braille display 1407:Optical braille recognition 1004:Bengali (Bangla / Assamese) 536:Chinese (mainland Mandarin) 178:refreshable braille display 172:Refreshable braille display 18:Refreshable Braille display 2267: 1495:Thakur Vishva Narain Singh 328: 308:(NIST) and another at the 1231:Mainland Chinese Mandarin 145:This article needs to be 1218:Chinese semi-syllabaries 481:Unicode braille patterns 467:International uniformity 234:, eight per character). 1979:Central processing unit 1555:Blindness organizations 1534:Braille Without Borders 1323:Canadian currency marks 945:Egyptian lineage family 2241:Computer accessibility 872:Russian lineage family 352:Tactile project at MIT 208: 173: 1636:Accessible publishing 1562:Schools for the blind 1541:Japan Braille Library 1330:Computer Braille Code 984:Indian lineage family 206: 171: 1400:Mountbatten Brailler 755:(largely reassigned) 538:(largely reassigned) 54:improve this article 2236:American inventions 1352:Nemeth braille code 1138:(reassigned vowels) 663:(extended to 8-dot) 342:GNOME accessibility 193:Speech synthesizers 2246:Braille technology 1386:Braille translator 1363:Braille technology 1339:(science; GS8/GS6) 1308:Symbols in braille 1238:Taiwanese Mandarin 753:Taiwanese Mandarin 209: 199:Mechanical details 174: 2251:Haptic technology 2223: 2222: 2193: 2192: 2123:Analog audio jack 1844: 1843: 1659: 1658: 1581:tactile alphabets 1509:William Bell Wait 1502:Sabriye Tenberken 1303: 1302: 1168: 1167: 1153:(Japanese vowels) 951:-mediated scripts 878:-mediated scripts 310:Leuven University 274:Microsoft Windows 166: 165: 130: 129: 122: 104: 16:(Redirected from 2258: 2098: 1749:Optical trackpad 1714:Pointing devices 1710: 1686: 1679: 1672: 1663: 1652: 1645: 1643:Braille literacy 1638: 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Refreshable Braille display

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braille
Speech synthesizers

Perkins Brailler
character cells
QWERTY
piezo effect
braille cells
cursor
operating system
API
UI Automation
Microsoft Windows
VoiceOver
macOS
iOS
AT-SPI

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