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15-525: One of the key aspects of the P910 is its ability to input text via several methods: multi-tap and T9 text input using the numerical keypad, hand-writing recognition with the pre-installed Jot-Pro software and touchscreen, virtual keyboard on screen and the new QWERTY keyboard on the inside of the flip. Other enhancements (compared to the P900) include support for HTML browsing, a new numerical keypad with larger keys and

30-502: A 3×4 numeric keypad ), originally developed by Tegic Communications , now part of Nuance Communications . T9 stands for Text on 9 keys. T9 was used on phones from Verizon , NEC , Nokia , Samsung Electronics , Siemens , Sony Mobile , Sanyo , SAGEM and others, as well as PDAs such as Avigo during the late 1990s. The main competing technologies include iTap created by Motorola , SureType created by RIM , Eatoni's LetterWise and WordWise , and Intelab's Tauto . It still

45-534: A numeric-style 4×3 keyboard. Such T9 formats for text entry therefore remain available in all latest [as of August 2020] iterations of LG keyboards, certain Samsung keyboards, and third party T9 keyboards such as Go keyboard for Androids and Type Nine for iPhones, as shown on this LG V60. Algorithm Too Many Requests If you report this error to the Wikimedia System Administrators, please include

60-477: A primary and secondary language and access matches from both languages. This enables users to write messages in their native language, as well as a foreign one. Some implementations learn commonly used word pairs and provide word prediction (e.g. if one often writes "eat food", after entering "eat" the phone will suggest "food", which can be confirmed by pressing Next). T9 can automatically recognize and correct typing/texting errors, by looking at neighboring keys on

75-514: A slightly changed outer casing. Its closest competitors are the palmOne Treo 650 , and the Nokia 9500 Communicator . Other competitors include several PDA-phones powered by Windows and manufactured by Taiwan-based HTC. Sony Ericsson released the successor to the P910, the P990 , in 2006. T9 (predictive text) T9 is a predictive text technology for mobile phones (specifically those that contain

90-424: Is a side effect of the requirements for small database sizes on the lower end embedded devices. On a phone with a numeric keypad, each time a key (1-9) is pressed (when in a text field), the algorithm returns a guess for what letters are most likely for the keys pressed to that point. For example, to enter the word 'the', the user would press 8 then 4 then 3, and the display would display 't' then 'th' then 'the'. If

105-448: Is an example of a letter changing while entering words. Many smart keyboards now exist, such as Swype or Swiftkey , that have taken the idea of T9 and combined it with the advanced touchscreen technology found in Android phones and iPhones . These advances have made T9 obsolete in newer cellphones for many users, since it is predicated on the use of a keypad with nothing besides numbers,

120-431: Is used on niche products as Punkt mp-02. T9 is available on certain phones without a touchscreen, and is available on Apple iPhone (as of iOS 18 ) and Android phones as a custom keyboard. T9's objective is to make it easier to enter text messages . It allows words to be formed by a single keypress for each letter, which is an improvement over the multi-tap approach used in conventional mobile phone text entry at

135-509: The asterisk and the pound key (known as the hash key in Commonwealth countries). Many features, such as predictive text, have been adopted by and improved by future generations of keyboard software. However, T9 remains viable. For example, those with larger fingertips still use the T9 based keyboard on smartphones for text entry, because key press accuracy increases with the larger screen area per key on

150-604: The keypad to determine an incorrect keypress. For example, the word "testing" is entered with the key combination "8378464". Entering the same number but with two incorrect keypresses of neighboring keys, e.g. "8278494", results in T9 suggesting the words "tasting" (8278464), "testing" (8378464), and "tapping" (8277464). In order to achieve compression ratios of close to 1 byte per word, T9 uses an optimized algorithm that maintains word order and partial words (also known as stems); however, because of this compression, it over-generates words that are sometimes visible as "junk words". This

165-450: The less-common word 'fore' is intended (3673) the predictive algorithm may select 'Ford'. Pressing the 'next' key (typically the '*' key) might bring up 'dose', and finally 'fore'. If 'fore' is selected, then the next time the user presses the sequence 3673, fore will be more likely to be the first word displayed. If the word "Felix" is intended, however, when entering 33549, the display shows ' E ', then 'De', 'Del', 'Deli', and ' F elix.' This

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180-499: The possessive 's ). Depending on the language, T9 also supports word breaking after punctuation to support clitics such as l' and n' in French and 's in English. For words entered by the user, word completion can be enabled. When the user enters matching keypresses, in addition to words and stems, the system also provides completions. In later versions of T9, the user can select

195-403: The time, in which several letters are associated with each key, and selecting one letter often requires multiple keypresses. T9 combines the groups of letters on each phone key with a fast-access dictionary of words. It will then look up in the dictionary all words corresponding to the sequence of keypresses and order them by frequency of use. As T9 "gains familiarity" with the words and phrases

210-430: The user commonly uses, it speeds up the process by offering the most frequently used words first and then letting the user access other choices with one or more presses of a predefined "Next" key. The dictionary is expandable. After introducing a new word, the next time the user tries to produce that word, T9 adds it to the predictive dictionary. The user database (UDB) can be expanded via multi-tap . The implementation of

225-554: The user database is dependent on the version of T9 and how T9 is actually integrated on the device. Some phone manufacturers supply a permanent user database, while others do so for the duration of the session. Some T9 implementations feature smart punctuation . This feature allows the user to insert sentence and word punctuation using the '1'-key. Depending on the context, smart punctuation inserts sentence punctuation (period or 'full stop') or embedded punctuation (period or hyphen) or word punctuation (apostrophe in can't, won't, isn't, and

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