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A telephone keypad is a keypad installed on a push-button telephone or similar telecommunication device for dialing a telephone number. It was standardized when the dual-tone multi-frequency signaling (DTMF) system was developed in the Bell System in the United States in the 1960s – this replaced rotary dialing, that had been developed for electromechanical telephone switching systems. Because of the abundance of rotary dial equipment still on use well into the 1990s, many telephone keypads were also designed to be backwards-compatible: as well as producing DTMF pulses, they could optionally be switched to produce loop-disconnect pulses electronically.
Predictive text is an input technology used where one key or button represents many letters, such as on the physical numeric keypads of mobile phones and in accessibility technologies. Each key press results in a prediction rather than repeatedly sequencing through the same group of "letters" it represents, in the same, invariable order. Predictive text could allow for an entire word to be input by single keypress. Predictive text makes efficient use of fewer device keys to input writing into a text message, an e-mail, an address book, a calendar, and the like.
T9 is a predictive text technology for mobile phones, originally developed by Tegic Communications, now part of Nuance Communications. T9 stands for Text on 9 keys.
iTap is a predictive text technology developed for mobile phones, developed by Motorola employees as a competitor to T9. It was designed as a replacement for the old letter mappings on phones to help with word entry. This makes some of the modern mobile phones features like text messaging and note-taking easier.
A virtual keyboard is a software component that allows the input of characters without the need for physical keys. Interaction with a virtual keyboard happens mostly via a touchscreen interface, but can also take place in a different form when in virtual or augmented reality.
Multi-tap (multi-press) is a text entry system for mobile phones. The alphabet is printed under each key in a three-letter sequence as follows; ABC under 2 key, DEF under 3 key, etc. Exceptions are the "7" key, which adds a letter ("PQRS"), and the "9" key which includes "Z". Punctuation is typically accessed via the "1" key and various functions mapped to the "*" key and "#" key.
LetterWise and WordWise were predictive text entry systems developed by Eatoni Ergonomics (Eatoni) for handheld devices with ambiguous keyboards / keypads, typically non-smart traditional cellphones and portable devices with keypads. All patents covering those systems have expired. LetterWise used a prefix based predictive disambiguation method and can be demonstrated to have some advantages over the non-predictive Multi-tap technique that was in widespread use at the time that system was developed. WordWise was not a dictionary-based predictive system, but rather an extension of the LetterWise system to predict whole words from their linguistic components. It was designed to compete with dictionary-based predictive systems such as T9 and iTap which were commonly used with mobile phones with 12-key telephone keypads.
The Nokia 8850 is a mobile phone handset manufactured by Nokia. It was a light alloy-bodied enhanced version of Nokia 8210 model with slider protection of the keypad and white lighting of the keypad and screen. The 8850 is considered to be an un-repairable phone, thus resulting in very few active handsets in the market. Today it remains a collector's item. It also came in gold. It was introduced as a successor of an earlier model, the chrome phone Nokia 8810.
Baraha is a word processing application for creating documents in Indian languages. It was developed by Sheshadrivasu Chandrasekharan with an intention to provide a software to enable and encourage Indians use their native languages on the computers. Baraha was first released in Kannada in 1998 and later on in other Indian languages. Baraha can be effectively used for creating documents, sending emails and publishing web pages. Baraha uses a transliteration scheme, which allows the user to write any Indian language in Latin text and later convert it to the respective language. Baraha package consists of Baraha, BarahaPad, BarahaIME and FontConvert programs. This package includes TrueType fonts for various Indian languages. The latest full version of the software is not free anymore. The full-featured software requires a registration key, which currently costs $49.95 or ₹3745.
A text entry interface or text entry device is an interface that is used to enter text information in an electronic device. A commonly used device is a mechanical computer keyboard. Most laptop computers have an integrated mechanical keyboard, and desktop computers are usually operated primarily using a keyboard and mouse. Devices such as smartphones and tablets mean that interfaces such as virtual keyboards and voice recognition are becoming more popular as text entry systems.
Indic Computing means "computing in Indic", i.e., Indian Scripts and Languages. It involves developing software in Indic Scripts/languages, Input methods, Localization of computer applications, web development, Database Management, Spell checkers, Speech to Text and Text to Speech applications and OCR in Indian languages.
E.161 is an ITU-T Recommendation that defines the arrangement of digits, letters, and symbols on telephone keypads and rotary dials. It also defines the recommended mapping between the basic Latin alphabet and digits. Uses for this mapping include:
Released during Q3 2007 for T-Mobile in the US, the Samsung Blast (SGH-T729) slider features a double-tap QWERTY keypad, music player, stereo bluetooth and a MicroSD slot.
The LG enV3 is a mobile phone built by LG Electronics, and released from Verizon Wireless in the United States and Telus Mobility in Canada. It succeeded the LG enV2. Along with a slimmer design, the enV3 also boasts a full keyboard, a 2.6-inch screen and a 3.0-megapixel camera. In addition to standard phone and text messaging capabilities, the enV3 can be used as a portable music player as well as Internet capabilities such as e-mail and web browsing. The phone is Bluetooth enabled.
Adaptxt is a predictive text application for mobile phones, developed by KeyPoint Technologies, a UK-based software company. The application is designed to improve text entry on mobile devices by making it faster and error-free. It achieves this by predicting the next word as well as the word being typed, continuously adapting to the user's writing style and vocabulary.
The Nokia 8810 is a discontinued slider-style mobile phone announced and manufactured by Nokia in 1998. It is notable for being among the first mainstream mobile devices to have an internal antenna, although the first is regarded as the TCP-6000, released as the Hagenuk GlobalHandy.
Microsoft SwiftKey is a virtual keyboard app originally developed by TouchType for Android and iOS devices. It was first released for Android in July 2010, followed by an iOS release in September 2014 after Apple's implementation of third-party keyboard support.
MessagEase is an input method and virtual keyboard for touchscreen devices. It relies on a new entry system designed by Saied B. Nesbat, formatted as a 3x3 matrix keypad where users may press or swipe up, down, left, right, or diagonally to access all keys and symbols. It is a keyboard that was designed for devices like cell phones, mimicking the early cell phones' limited number of 12 keys.
Typewise is a Swiss deep tech company that builds text prediction AI. In January 2022, the company filed a patent for its technology which it claims outperforms that of Google's and Apple's.
References
- ↑ "Noida start up Panini Keypad breaking language barriers on mobile phones". Economic Times, June 19, 2011.
- ↑ "How Abhijit Bhattacharjee founder of Luna Ergonomics developed solutions for mobile texting". Economic Times, July 19, 2012.
- ↑ "Massive list of Assamese Typing Software-Complete Guide". Orundoi, Piyush Ranjan, April 2016.
- ↑ "Type Gujarati From Mobile | iPhone, Samsung, Nokia, Android, iPad Software Download". TechTipTricks Jul 1st, 2013
- ↑ "Is language the key to hooking India on the web?" BBC News, 9 July 2012. Shilpa Kannan
- ↑ "Local messaging". Indian Express, Shambhu Das Sahu, June 19, 2010
- ↑ "Thumbs up for clever texting". Innovation, March 2011
- ↑ "CleverTexting: A new predictive texting technology". Textually, January 2009.
- ↑ "Nasscom honours tech impact". Deccan Herald, 15 February 2011 by L Subramani