FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENT RULES, 2003
COMPLETE SPECIFICATION
(See Section 10 and Rule 13)
Title of invention:
A SYSTEM AND METHOD FOR VISUALLY IMPAIRED INDIVIDUALS TO COMPOSE TEXT
MESSAGES USING COMMUNICATION MEANS
Applicant:
TATA Consultancy Services Limited A company Incorporated in India under The Companies Act, 1956
Having address:
Nirmal Building, 9th Floor,
Nariman Point, Mumbai 400021,
Maharashtra, India
The following specification describes the nature of the invention and the manner in which it is to be performed.

FIELD OF THE INVENTION:
The present invention relates to a method and system for composing a text message in a communication means. More particularly the present invention relates to a system and method for visually impaired individuals to compose a text message using communication means without typing the words.
BACKGROUND OF THE INVENTION AND PRIOR ART:
With the rapid advancement in technology, the mode of communication and the means used for communication has also improved by leaps and bounds to meet the ever increasing demand of the population.
"Short messaging service" acronym SMS is one of the common communication mode used by the people all over the world. Communicating by mode of sending or receiving SMS is one of the cost effective, easy and comfortable modes of communication, This is supported by the fact that there are 2.4 billion active users i.e. is equal to 74% of mobile subscribers,
The present day communication mode often tends to be of less user friendly for individuals with physical limitation such as visual impairment.
The biggest challenge for visually impaired individuals or blind or senior citizens or partially blind or legally blind individuals is to effectively use the SMS communication mode without any special device or resources such as Braille keypad, Braille display, and/or text to speech recognition software.
Though being useful, the disadvantage of these special device or resources is, one may need to carry and handle multiple of such devices or resources, such as Braille keypads and Braille displays to host on the communication means.
Further, another limitation to the use of these special hardware and software is the need of a trained individual to decipher information.
Hence there is an urgent need to provide such individuals with visual impairments a method and system for composing a text message using the communication means without typing the words.
Some of the inventions which deal to provide navigation aid and methods for individuals with visual impairment are as follows:

US patent 7684821 titled "Multi-tap keyboard user interface" provides a multi-tap keyboard user interface with auditory feedback for controlling operation of a mobile device having a plurality of input devices. Though '821 patent provides an auditory feedback for navigation through the menu of the mobile, describes mapping of auditory feedback to individual keys and using combination of keys to spetl a word, it necessarily fails to map words to a single key stroke. Further '821 patent relates the auditory feedback mainly to navigation and reading of received messages and fails to relate to auditory feedback for each selected word for composing a message.
US patent 7207011 titled "Alphanumeric information input method" provides an alphanumeric information entry process that includes provision and use of a personal context model that correlates various examples of user context against a unique personal language model for the user. The personal context model is used to predict subsequent alphanumeric entries for a given user. Though '011 patent relates to predicting a word using a statistical algorithm, it fails to map words to a single key stroke and further map the auditory feedback to a single key for each selected word for composing a message.
US patent 7495585 titled "Method for inputting characters in electronic device" discloses an enhanced audible feedback solution for electronic devices using an input device facilitating navigation though a plurality of available user interface input options and confirmation of a selected input option. Though '585 patent relates to audio feedback for navigation through mobile menu, it fails to map words to a single key stroke and further map the auditory feedback to a single key for each individually selected word for composing a message.
US patent application number 20020126097 titled "Alphanumeric data entry method and apparatus using reduced keyboard and context related dictionaries" discloses a method and an apparatus for inputting alphanumeric data into an electronic device via a reduced keyboard using context related dictionaries; wherein the keystroke sequence entered by a user is compared to entries in a dictionary containing keystroke sequences respectively associated with text. Though '097 patent application relates to mapping multiple words to a combination of keys, it fails to map words to a single key stroke and further fails to map the auditory feedback to a single key for each individually selected word for composing a message.
The current state of art restricts the universal application of the Short messaging service i.e. SMS for visually impaired individuals. Hence there is an urgent requirement for a system and method for disabled individual whereby such disabled individual would be able to compose the text SMS without typing the word.

In the present invention we propose a novel approach to overcome all the above mentioned limitations for individual with visual impairment and provide a practical usability for composing a text message on a communication means without typing the word.
In light of the above mentioned prior arts it is evident that there is a need to have a customizable solution to individuals with physical limitation such as visually impairment to compose text messages on a communication means.
In order to address the long felt need of such a solution, the present invention provides system and a method for composing a text message in a communication means without typing words.
OBJECTS OF THE INVENTION:
The principle object of the invention is to provide a system and method for individuals with visual impairment to compose a text message without typing words.
Another object of the invention is to enable the individuals with visual impairment to use the messaging system as a communication mode.
Yet another object of the invention is to enable a visually impaired individual to compose and send a text message in situations, whereby, calling is not possible.
Yet another object of the invention is to provide a system and a method for composing the text message using the keys on the keypad of the communication means.
Yet another object of the present invention is to provide a cost effective, easy and a comfortable method and system for the individuals with visual impairment to compose a text message on the communication means.
Yet another object of the invention is to provide a system and method for individuals with visual impairment to use the SMS communication mode without upgrading the communication means or integrating the special devices with the communication means.
Yet another object of the invention is to provide a system and method for individuals with visual impairment for composing the text message using both rote learning and analytical reasoning.

SUMMARY OF THE INVENTION:
The present invention discloses a system and method for individuals with visual impairment to compose a text message without typing words.
The user provides input to the remote communication means via the input means of the communication to compose a text message.
According to the present invention the method for composing a text message in a communication means characterized in that wherein the text message is not required to be typed by a user for composing the text message; wherein the said method comprising the steps of:
a. downloading and installation of an application for composing the text message on a
communication means from a server over a communication network;
b. automatic generation of an user account with an unique id on launch and registration of the
said application with the server;
c. pressing and holding an input key of an input means of the said communication means;
d. listening and selecting a word recited by the application from a stored dictionary of words in
the said communication means; wherein the said specific input keys of the input means is
mapped to the specific words from the dictionary using a mapping algorithm of the said
application;
e. providing input via the said input means by releasing the pressed input key and enabling
one or more user to type the selected words recited by the application installed in the said
communication means;
f. storing and updating the list of frequently used words by the frequency sort algorithm, in the
dictionary of the said installed application;
g. forming a sentence of words fed by the user, by repeating the steps c), d) and e) to form a
text message and further transmitting the said text message to the selected user over the
communication network via the server.
BRIEF DESCRIPTION OF THE DRAWINGS:
The foregoing summary, as well as the following detailed description of preferred embodiments, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there is shown in the drawings, example constructions of the invention; however, the invention is not limited to the specific methods disclosed in the drawings:

Figure 1 of the present invention illustrates the architecture of system of the present invention for composing text message installed on the communication means.
Figure 2 illustrates a flow diagram to compose and send a text message using the system of the present invention.
DETAILED DESCRIPTION OF THE INVENTION:
Before the present method and hardware enablement are described, it is to be understood that this invention in not limited to the particular methodologies, and hardware's described, as these may vary. It is also to be understood that the terminology used in the description is for the purpose of describing the particular versions or embodiments only, and is not intended to limit the scope of the present invention which will be limited only by the appended claims. The words "comprising," "having," "containing," and "including," and other forms thereof, are intended to be equivalent in meaning and be open ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items, or meant to be limited to only the listed item or items. The disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms.
In one of the significant embodiment of the present invention a system for composing a text message in a communication means characterized in that wherein the text message is not required to be typed by a user for composing the text message. The said system of the present invention for visually impaired individuals comprises:
At least one communication means having an application downloaded and installed therein for composing the text message and transmitting the said message to a selected user over the communication network via the server;
The said application for composing message further comprising: a dictionary of words embedded in the said application;
a mapping algorithm to map one or more words stored in the dictionary with a specific input key of the input means of the said communication means.
a frequency sort algorithm to sort the stack of words based on the frequency of the usage of the words
The present invention provides a method for assisting the visually impaired individuals to compose a text message in a communication means without typing the word,

In a preferred embodiment of the invention the communication means can be a mobile phone, a Personal Digital Assistant (PDA) or any portable communication device, palm-top, and a mobile digital assistant.
In a preferred embodiment of the present invention, the said communication means is wirelessly connected to the server of the service provider over the communication network.
In another preferred embodiment of the present invention, the service provider is a telecom service provider or a third party service provider.
According to one of the embodiment of the present invention, the user of the present invention can be visually impaired individuals, blind or senior citizens or partially blind or legally blind individuals or normal individuals. Further the user may also be print illiterate.
Figure 1 of the present invention illustrates the architecture of the system for composing text message installed on the communication means.
According to one of the embodiments of the present invention, the application for composing a text message is downloaded and installed on the communication means (100).
Further, the visually impaired user launches the application on the communication means (100), and provides input via the input keys of the communication means (100) to compose a text message.
According to one of the embodiment of the present invention, the input keys of the communication means comprises of touch screen, QWERTY keypad or alpha numeric keys.
Each input key of the communication means is further mapped with the stack of words (103) from the dictionary using the mapping algorithm (101); wherein each word in the stack of words is embedded with equivalent voice playback of the words (102).
According to one of the embodiments of the present invent/on, the dictionary is created using the statistical and rhyming information.
Further, the dictionary is divided into clusters; wherein each cluster of the dictionary further has 10 words mapped to the input key thereby, making a vocabulary of words.
Further, according to another embodiment of the present invention, the words are further divided into cluster based on

a. Phonetic mapping of words: phonetic mapping of words is based on pronunciations of numbers
and words.
For example: Number key 1 is mapped to words such as won, on, once. Number key 2 is mapped to words such as to, who, few. Number key 4 is mapped to words such as for, more, how Number key 8 is mapped to words such as wait, hate.
b. Rhyme mapping of words: rhyme mapping of words is done wherein; the word could potentialfy
rhyme with more than one number. Further, the odd number keys of the communication means
are mapped with nouns, whereas the even number keys of the communication means are
mapped with verbs.
Further, according to another embodiment of the present invention, the application of the present invention further sorts the order of the words in the cluster based on the frequency of the words used, using the frequency sort algorithm (104).
The frequency sort algorithm (104) sorts the stack of words and pushes the frequently used words on top of the list.
The visually impaired user provides an input by pressing and holding an input key of the said communication means (100). The application for composing text message reads out the stack of words mapped to the pressed key sequentially with pauses in between.
The user releases the pressed key to select a word from the stack of words. The user continues the process until the message is formed. The user can press "*" key to end the composition of message.
Further, the user can listen to the sentence formed by pressing "#" key to verify whether, correct text message is formed. On verification of the message composed, the user can send the text message or Short Message service (SMS) (105) to the selected recipient(s) via the server over the communication network.
According to one of the embodiments of the present invention, the system of the present invention even supports the local language.

BEST MODE/EXAMPLE OF WORKING OF THE INVENTION
The invention is described in the example given below which is provided only to illustrate the invention and therefore should not be construed to limit the scope of the invention.
Figure 2 illustrates a flow diagram to compose and send a text message using the system of the present invention.
According to one of the exemplary embodiments of the present invention, figure 2 illustrates the steps followed by the visually impaired user to compose a text message "Hi How are you".
201: The visually impaired individual launches the application for composing text message on the communication means.
202: The visually impaired individual presses and holds the number key "5° until "Hi" word is read out by the application of the present invention on the said communication means.
203: The visually impaired individual releases the input key "5" once the word "Hi" is read out by the application. The word "Hi" is added to compose a message.
204: The steps 202 and 203 are repeated until the message "Hi How are you" is composed.
205: To stop composing the message or end the sentence, the visually impaired individual presses "*" key.
206: The visually impaired individual presses "#" key to listen to the whole message composed
207: On verification of the composed message, the visually impaired individual sends the text message composed to the selected recipients via the server over the communication network.
ADVANTAGES OF THE INVENTION:
• The present invention provides a system and a method for individuals with visual impairment to compose a text message.
• Provides the visually impaired individuals a new and cost effective mode of communication.
• Enables a visually impaired individual to compose and send a text message in situations, whereby, calling is not possible.
• Provides an easy and comfortable method to the visually impaired individuals to compose a text message independently.

WE CLAIM:
1. A method for composing a text message in a communication means characterized in that wherein the text message is not required to be typed by a user for composing the text message; wherein the said method comprising the steps of:
a. downloading and installation of an application for composing the text message on a
communication means from a server over a communication network;
b. automatic generation of an user account with an unique id on launch and registration of the
said application with the server;
c. pressing and holding an input key of an input means of the sard communication means;
d. listening and selecting a word recited by the application from a stored dictionary of words in
the said communication means; wherein the said specific input keys of the input means is
mapped to the specific words from the dictionary using a mapping algorithm of the said
application;
e. providing input via the said input means by releasing the pressed input key and enabling
one or more user to type the selected words recited by the application installed in the said
communication means;
f. storing and updating the list of frequently used words by the frequency sort algorithm, in the
dictionary of the said installed application;
g. forming a sentence of words fed by the user, by repeating the steps c), d) and e) to form a
text message and further transmitting the said text message to the selected user over the
communication network via the server.
2. A method as claimed in claim 1, wherein the said communication means comprises of mobile phone, a Personal Digital Assistant (PDA) , portable communication device, palm-top, and a mobile digital assistant.
3. A method as claimed in claim 1, wherein the input key of the input means of the said communication means comprises of a touch screen, QWERTY keypad or alpha numeric keys.
4. A method as claimed in claim 1, wherein each of the said input key of the communication means is mapped with the words from the dictionary.
5. A method as claimed in claim 1, wherein the dictionary of words is created based on statistical and rhyming information.

6. A method as claimed in claim 1, wherein the dictionary is further divided into clusters of words based on phonetic mapping and rhyme mapping of words.
7. A method as claimed in claim 6, wherein, each cluster is further mapped to an input key.
8. A method as claimed in claim 6, wherein each of the said cluster of words further has a stack of 10 words mapped to an input key.
9. A method as claimed in claim 1, wherein each word in the stack of words is embedded with equivalent voice playback of the words.
10. A method as claimed in claim 1, wherein the server may be a server of telecom service provider or a third party service provider.
11. A method as claimed in claim 1, wherein the user may be a visually impaired individual, blind or senior citizens, partially blind individual, legally blind individual, print illiterate or a normal individual.
12. A system for composing a text message in a communication means characterized in that wherein the text message is not required to be typed by an user for composing the text message; the said system comprising of:
At least one communication means having an application downloaded and installed therein for composing the text message and transmitting the said message to a selected user over the communication network via the server;
The said application for composing message further comprising: a dictionary of words embedded in the said application;
a mapping algorithm to map one or more words stored in the dictionary with a specific input key of the input means of the said communication means.
a frequency sort algorithm to sort the stack of words based on the frequency of the usage of the words
13. A system as claimed in claim 12, wherein the said communication means comprises of mobile
phone, a Personal Digital Assistant (PDA) , portable communication device, palm-top, and a
mobile digital assistant.

14. A system as claimed in claim 12, wherein the input key of the input means of the said communication means comprises of a touch screen, QWERTY keypad or alpha numeric keys.
15. A system as claimed in claim 12, wherein each of the said input key of the communication means is mapped with the words from the dictionary.
16. A system as claimed in claim 12, wherein the dictionary of words is created based on statistical and rhyming information.
17. A system as claimed in claim 12, wherein the dictionary is further divided into clusters of words based on phonetic mapping and rhyme mapping of words.
18. A system as claimed in claim 17, wherein, each cluster is further mapped to an input key.
19. A system as claimed in claim 17, wherein each of the said cluster of words further has a stack of 10 words mapped to an input key.
20. A system as claimed in claim 12, wherein each word in the stack of words is embedded with equivalent voice playback of the words.
21. A system as claimed in claim 12, wherein the server may be a server of telecom service provider or a third party service provider.
22. A system as claimed in claim 12, wherein the user may be a visually impaired individual, blind or senior citizens, partially blind individual, legally blind individual, print illiterate or a normal individual.
23. A system and method substantially as herein described with reference to and as illustrated by the accompanying drawings.