Computer implemented user interface for inputting indian language alphabets

• US 9,658,771 B2
• Filed: 08/29/2014
• Issued: 05/23/2017
• Est. Priority Date: 08/31/2013
• Status: Active Grant

• Current Assignee: Reverie Language Technologies Pvt Ltd. (Reliance Industries Limited)
• Original Assignee: Reverie Language Technologies Pvt Ltd. (Reliance Industries Limited)
• Inventors: Pani, Vivekananda, Mohanty, Sachindra Kumar
• Primary Examiner(s): CHUANG, JUNG-MU T
• Application Number:
  US14/473,982
• Publication Number:
  US 20150067575A1
• Time in Patent Office: 998 Days
• CPC Class Codes: G06F 3/018 Input/output arrangements for oriental characters
• CPC Class Codes: G06F 3/04886 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
• CPC Class Codes: G06F 40/129 Handling non-Latin characters, e.g. kana-to-kanji conversion

Abstract

A computer implemented user interface which enables a user to input alphabets in at least one Indian language is disclosed herein. The user interface includes a display enabled keypad layout which in turn includes a default keypad layer, a first keypad layer, a second keypad layer and a third keypad layer. The default keypad layer comprises a plurality of alphabets represented as selectable vowels and consonants. The first keypad layer comprises the vowels and consonants, and a plurality of modifiers. The second keypad layer comprises a plurality of matras, a plurality of halants, the vowels, and the consonants. The third keypad layer comprises the matras and the modifiers. The keypad layers are configured to be incorporated onto the display enabled keypad layout and selectively displayed, based on at least the selection of a key on at least one of the keypad layers.

Claims

1. A computer implemented system for enabling a user to input alphabets in an Indian language, said system comprising a user interface on a display and an analyzer, said user interface comprising:

at least one display enabled keypad layout, said keypad layout comprising a plurality of keypad layers, each of said keypad layers incorporating the alphabets of the Indian language as selectable keys, said alphabets generated based on a script-grammar corresponding to the Indian language, said plurality of keypad layers comprising;

a default keypad layer comprising a plurality of alphabets represented as selectable vowels and consonants;

a first keypad layer comprising the vowels and consonants, and a plurality of modifiers;

a second keypad layer comprising a plurality of matras, a plurality of halants, the vowels, the consonants, wherein said matras are formed by selectively combining the vowels and the consonants; and

a third keypad layer comprising the plurality of matras and the plurality of modifiers;

said plurality of keypad layers are incorporated onto the display enabled keypad layout and selectively displayed, based on selection of a key on at least one of said keypad layers;

said analyzer cooperating with said user interface;

triggers a display of the first keypad layer subsequent to the selection of a vowel on the default keypad layer, and triggers a display of the second keypad layer, in an event that a consonant has been selected from the default keypad layer;

retriggers the display of the default keypad layer in an event that a modifier has been selected from the first keypad layer, and triggers a display of the third keypad layer in an event that a consonant has been selected from the first keypad layer, and generates a trigger to retain the display of the first keypad layer, in an event that a vowel has been selected from the first keypad layer;

retriggers the display of the default keypad layer subsequent to selection of a halant from said second key pad layer, and retriggers the display of the first keypad layer, in an event that a matra has been selected from said second keypad layer; and

retriggers the display of the default keypad layer, subsequent to selection of a modifier from the third keypad layer, and retriggers the display of the default keypad layer, subsequent to selection of a matra from the third keypad layer.

2. The display enabled keypad layout as claimed in claim 1, wherein the default keypad layer further comprises a default base layer and a default toggle layer, wherein said default base layer comprises un-aspirated consonants, and wherein said default toggle layer comprises aspirated consonants.

3. The display enabled keypad layout as claimed in claim 1, Wherein the first keypad layer further comprises a first base layer and a first toggle layer, wherein said first base layer comprises un-aspirated consonants and the modifiers, and wherein said first toggle layer includes only aspirated consonants.

4. The display enabled keypad layout as claimed in claim 3, wherein the first keypad layer incorporates said modifiers on the first toggle layer only after at least one vowel or at least one consonant has been selected by the user from the first base layer.

5. The user interface as claimed in claim 1, wherein said user interface further comprises an identifier identifies words having an invalid phonetic sequence and stores said words in a repository;

tracks and identifies the sequence of alphabets input by the user, and compare compares the sequence of alphabets input by the user with the words stored in the repository, and determines whether the sequence of alphabets input by the user form at least a part of a word stored in the repository;

cooperates with the plurality of keypad layers to identify the selectable keys having alphabets, which in combination with the alphabets input by the user, would result in formation of an unpronounceable word; and

disables selection of the identified keys.

6. The identifier as claimed in claim 5, wherein said identifier further identifies phonetically similar words, said identifier further stores said phonetically similar words in the repository, said identifier still further identifies a sequence of alphabets input by the user and replaces the sequence of alphabets input by the user with a phonetically similar word extracted from the repository, only in an event that the sequence of alphabets input by the user is deemed to be grammatically incorrect.

7. A computer implemented method for enabling a user to input alphabets in an Indian Language, via a user interface, said method comprising the following computer implemented steps:

generating, based on a script-grammar corresponding to the Indian language, a default keypad layer comprising a plurality of alphabets represented as selectable vowels and consonants;

generating, based on the script-grammar corresponding to the Indian language, a first keypad layer comprising the vowels and consonants and a plurality of modifiers;

generating, based on the script-grammar corresponding to the Indian language, a second keypad layer comprising a plurality of matras, a plurality of halants, the vowels and the consonants, wherein said matins are formed by selectively combining the vowels and the consonants;

generating, based on at least the script-grammar corresponding to the Indian language, a third keypad layer comprising the plurality of matras and the plural y of modifiers;

integrating said default keypad layer, first keypad layer, second keypad layer and third keypad layer into a display enabled keypad layout;

displaying said keypad layout on the user interface;

providing the user with an access to at least said default keypad layer of the keypad layout;

triggering a display of the first keypad layer subsequent to selection of a vowel on the default keypad layer, and triggering a display of the second keypad layer, in an event that a consonant has been selected from the default keypad layer;

retriggering the display of the default keypad layer in an event that a modifier has been selected from the first keypad layer, and triggering a display of the third keypad layer in an event that a consonant has been selected from the first keypad layer, and generating a trigger to retain the display of the first keypad layer, in an event that a vowel has been selected via the first keypad layer;

retriggering the display of the default keypad layer subsequent to selection of a halant from said second keypad layer, and retriggering te6display of the first keypad layer, in an event that a matra has been selected via said second keypad layer; and

retriggering the display of the default keypad layer, subsequent to selection of a modifier from the third keypad layer, and retriggering the display of the default keypad layer, subsequent to selection of a matra from the third keypad layer.

8. The method as claimed in claim 7, wherein the step of generating a default keypad layer further comprises the following steps:

generating a default base layer comprising un-aspirated consonants;

generating a default toggle layer aspirated consonants; and

integrating said default base layer and default toggle layer onto the default keypad layer.

9. The method as claimed in claim 7, wherein the step of generating a first keypad layer further comprises the following steps:

generating a first base layer comprising un-aspirated consonants and the modifiers;

generating a first toggle layer, said first toggle layer having only the aspirated consonants; and

integrating said first base layer and first toggle layer onto the first keypad layer.

10. The method as claimed in claim 9, wherein the step of generating a first toggle layer further includes the step of incorporating said modifiers onto the first toggle layer only after at least one vowel or at least one consonant has been selected by the user from the first base layer.

11. The method as claimed in claimed 7,herein the method further comprises the following steps:

identifying combinations of unpronounceable alphabets and combinations of alphabets that form an invalid phonetic sequence; and

disabling, on the display enabled keypad layout, selection of combination of alphabets identified as being unpronounceable and having the invalid phonetic sequence.

12. The method as claimed in claim 11, wherein said method further includes the following steps:

identifying words having the invalid phonetic sequence and storing said words in a repository;

identifying the sequence of alphabets input by the user, and comparing the sequence of alphabets input by the user with the words stored in the repository, and determining whether the sequence of alphabets input, by the user form at least a part of a word stored in the repository;

cooperating with the plurality of keypad layers to identify the keys having alphabets, which in combination with the alphabets input by the user, would result in formation of an unpronounceable word; and

disabling selection of identified keys.

13. The method as claimed in claim 12 wherein the method further includes the following steps:

identifying phonetically similar words, storing said words in the repository;

identifying a sequence of alphabets input by the user and automatically replacing the sequence of alphabets input by the user with a phonetically similar word extracted from the repository, only in an event that the sequence of alphabets input by the user is deemed to he grammatically incorrect.

14. A non transitory computer readable medium, having computer readable instructions stored thereupon, said computer readable instructions when executed by a processor, configured to cause a computer enabled device to:

generate, based on a script-grammar corresponding to an Indian language, a default keypad layer comprising a plurality of alphabets represented as selectable vowels and consonants;

generate, based on the script-grammar corresponding to the Indian language, a first keypad layer comprising the vowels and the consonants and a plurality of modifiers;

generate, based on the script-grammar corresponding to the Indian language, a second keypad layer comprising a plurality of matras, a plurality of halants, the vowels, and the consonants, wherein said matras are formed by selectively combining the vowels and the consonants;

generate, based on the script-grammar corresponding to the Indian language, a third keypad layer comprising the plurality of matras and the plurality of modifiers;

integrate said default keypad layer, first keypad layer, second keypad layer and third keypad layer into a display enabled keypad layout;

display said keypad layout on a user interface of the computer enabled device, and provide a user with an access to at least said default keypad layer of the keypad layout;

trigger a display of the first keypad layer subsequent to the selection of a vowel on the default keypad layer, and trigger a display of the second keypad layer, in an event that a consonant has been selected from the default keypad layer;

retrigger a display of the default keypad layer in the event that a modifier has been selected from the first keypad layer, and trigger a display of the third keypad layer in an event that a consonant has been selected from the first keypad layer, and generate a trigger to retain the display of the first keypad layer, in an event that a vowel has been selected via the first keypad layer;

retrigger the display of the default keypad layer, subsequent to selection of a halant from said second keypad layer, and retrigger the display of the first keypad layer, in an event that a matra has been selected via said second keypad layer; and

retrigger the display of the default keypad layer, subsequent to selection of a modifier from the third keypad layer, and retrigger the display of the default keypad layer, subsequent to selection of a matra from the third keypad layer.

15. The non transitoiy computer readable medium as claimed in claim 14, wherein said computer readable instructions, when executed by a processor are further configured to enable a computer enabled device to:

generate a default base layer comprising un-aspirated consonants;

generate a default toggle layer comprising aspirated consonants;

integrate said default base layer and default toggle layer onto the default keypad layer;

generate a first base layer comprising the un-aspirated consonants;

generate a first toggle layer, said first toggle layer haying only the aspirated consonants;

integrate said first base layer and first toggle layer onto the first keypad layer;

incorporate said modifiers onto the first toggle layer, only after at least one vowel or at least one consonant has been selected by the user from the first base layer;

identify words having an invalid phonetic sequence and store said words in a repository;

identify the sequence of alphabets input by the user, and compare the sequence of alphabets input by the user with the words stored in the repository, and determine whether the sequence of alphabets input by the user form at least a part of a word stored in the repository;

cooperate with the plurality of keypad layers to identify keys having alphabets, which in combination with the alphabets input by the user, would result in formation of an unpronounceable word;

disable selection of identified keys;

identity phonetically similar words, and storing the phonetically similar words in the repository; and

identify a sequence of alphabets input by the user and automatically replace the sequence of alphabets input by the user with a phonetically similar word extracted from the repository, only in an event that the sequence of alphabets input by the user is deemed to be grammatically incorrect.