Ai-based application system for business korean learning

KR1020260122729APending Publication Date: 2026-08-12STELLUP CO LTD
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Patent Information

Authority / Receiving Office
KR · KR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-08-12

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Abstract

The present invention is an application for learning business Korean, comprising STT technology that converts a learner's speech into text, an AI-based evaluation system that assesses whether the converted text is suitable for a business environment, and a TTS function that converts text into Korean speech to correct the learner's pronunciation. This application converts the learner's speech into text in real time and displays it on the screen, evaluates the pronunciation, grammar, and vocabulary selection of the converted text to determine suitability for a business environment, and provides feedback. Furthermore, it supports learners in correcting their pronunciation by providing correct Korean pronunciation in speech, and improves learning efficiency by including a real-time feedback system to allow learners to receive immediate corrections. The user interface interacts with the learner by providing business conversation scenarios and facilitating feedback, and provides a customized learning experience through the integration of scenario-based learning and feedback. This application supports business Korean learning by managing STT conversion, AI evaluation, and TTS feedback mechanisms.
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Description

Technology Field

[0001] This invention belongs to the field of application software utilizing artificial intelligence (AI) technology. In particular, it relates to an electronic education system that supports Korean language learning in a business environment. This technology helps users whose native language is not Korean to effectively acquire the language skills necessary in business situations.

[0002] This invention converts a learner's speech into text based on Speech-to-Text (STT) and Text-to-Speech (TTS) technologies, and evaluates the suitability of the converted text through an AI-based evaluation system. This technical configuration supports learners in improving their pronunciation and expression by providing real-time feedback. Differentiated from existing Korean language learning systems, this invention offers a customized learning experience to users by providing learning content specialized for business conversation. In particular, it possesses the technical foundation to enable diverse user groups, such as international students, foreign workers, and employees of multinational corporations, to effectively enhance their Korean language proficiency in business environments. Background Technology

[0004] Currently, traditional learning methods focusing on grammar and vocabulary are predominantly used in the field of Korean language education. These methods are primarily based on textbooks and instructor guidance, where learners memorize and use given sentence structures and words. However, this traditional approach has limitations in developing the practical conversational skills required in real-world business environments. In particular, the difficulty in improving pronunciation accuracy or receiving real-time feedback is pointed out as a problem.

[0005] Most existing Korean language learning systems lack automated pronunciation correction or feedback features. Even when some systems offer pronunciation correction, these functions are typically limited to a basic level and fail to provide personalized feedback. Furthermore, systems that convert a learner's speech into text and provide feedback in real time are rare. Existing systems primarily rely on post-mortem feedback, making it difficult for learners to immediately correct or improve their pronunciation.

[0006] Therefore, there is a growing need for a Korean language learning system specialized for business environments. This invention was developed to meet this need. By combining an AI-based real-time feedback system with STT and TTS technologies, it enables learners to receive more effective and immediate feedback. Through this, learners can correct their pronunciation in real time and efficiently acquire the practical Korean language skills required for business conversation. This approach presents an innovative solution capable of overcoming the limitations of existing Korean language learning methods. The problem to be solved

[0008] The present invention aims to provide a learning experience for acquiring effective Korean conversational skills in a business environment. Existing Korean learning methods focus on general conversation, which is insufficient for effectively acquiring the specialized language skills required in a business setting. In particular, the absence of a system that provides real-time pronunciation correction and appropriate feedback may hinder learners' pronunciation improvement and language proficiency enhancement. Therefore, the present invention seeks to enhance the efficiency of Korean learning through scenarios specialized for business conversation and real-time feedback. means of solving the problem

[0010] A method for providing a business Korean language learning service according to an embodiment of the present invention, comprising: a method for providing a Korean language learning service through an AI-based application for business Korean language learning, the method comprising: receiving a selection input for one or more learning scenarios corresponding to a business situation from a learner's terminal; a step of querying conversation script information regarding the selected learning scenario from a preset database and controlling it to display on the screen of the learner's terminal or provide as voice; a step of receiving a learner's utterance voice from the learner's terminal; a step of converting the received learner's utterance voice into text through a STT (Speech-To-Text) engine; a step of analyzing the converted text in an AI-based evaluation module to determine pronunciation, grammar, vocabulary, and business suitability, and generating feedback information based on the judgment result; a step of providing the learner's utterance as a TTS (Text-To-Speech) voice or displaying correction phrases on the screen so that the learner can correct it in real time based on the generated feedback information; and a step of continuously providing real-time feedback by repeating the conversion to STT and AI evaluation when the learner re-utters the corrected expression or performs additional utterance. and may include a step of presenting a future learning plan to the learner by calculating, storing, and displaying the learning progress of business Korean conversation. Effects of the invention

[0011] Compared to existing Korean language learning technologies, this invention offers the advantage of enabling learners to effectively acquire the language skills required for actual work situations by providing learning content specialized for business environments. Learning efficiency is enhanced as learners can receive immediate correction through an AI-based real-time feedback system. In particular, by combining STT and TTS technologies, it provides significant assistance in pronunciation correction by allowing learners to repeatedly listen to and correct their own pronunciation. This approach provides learners with a customized learning experience, enabling faster and more effective language acquisition than conventional learning methods. This invention is useful for various user groups, including international students, foreign workers, and employees of multinational corporations, and is particularly expected to be utilized in business environments. Brief explanation of the drawing

[0012] FIG. 1 is a diagram illustrating the processing process of an AI evaluation system. This is in accordance with one embodiment of the present invention. Specific details for implementing the invention

[0013] Hereinafter, specific details for implementing the present invention will be described with reference to the attached drawings. Furthermore, in describing the present invention, detailed descriptions of related known functions are omitted if they are deemed obvious to a person skilled in the art and could unnecessarily obscure the essence of the invention.

[0015] The present invention is an AI-based application system for learning business Korean that supports Korean language learning by utilizing Speech-to-Text (STT) technology to convert a learner's utterance into text. This application includes an AI-based evaluation system capable of assessing whether the text is suitable for a business environment, thereby helping learners use more accurate expressions. Additionally, it supports pronunciation correction by playing the converted text back as Korean speech through a Text-to-Speech (TTS) function.

[0017] STT technology converts the content spoken by the learner into text in real time, which is clearly explained through the operation of the STT module in Fig. 1. This converted text is analyzed by an AI-based evaluation system, and Fig. 2 shows the processing process of this AI evaluation system. The AI ​​system evaluates the learner's pronunciation, grammar, and vocabulary selection, determines whether they are suitable for a business environment, and provides feedback. The evaluation results guide the learner to immediately correct and improve their speech.

[0019] The TTS function allows learners to listen to converted text as Korean speech, providing an opportunity to compare and correct their own pronunciation with that of a native speaker. The operation of this TTS technology is illustrated in Fig. 1. The user interface provides a business scenario-based learning environment, the structure of which is schematically shown in Fig. 3. This interface helps learners simulate various business situations.

[0021] This application offers several improvements over existing Korean language learning solutions. Through learning scenarios specialized for business conversation and a real-time feedback system, learners can more effectively acquire the language skills required in actual work situations. In particular, by combining STT and TTS technologies, it provides significant assistance in pronunciation correction by allowing learners to repeatedly listen to and correct their pronunciation.

[0023] What differentiates this invention is its focus on the specific use case of business conversation. Unlike existing Korean language learning methods, it provides learners with a more practical conversational learning experience through a system that offers real-time feedback. This differentiation is realized through learning scenarios and a feedback system based on actual language usage cases in business environments. This invention is useful for various user groups, such as foreign workers and employees of multinational corporations, and is particularly expected to be utilized in business settings where Korean language proficiency is required.

[0025] The present invention is an application for learning business Korean that includes a function to convert speech spoken by a learner into text in real time using Speech-to-Text (STT) technology. This technology is configured to convert the content into text and display it on the screen immediately after the learner speaks. This immediate conversion function provides a useful tool that allows the learner to visually check their speech and make immediate corrections accordingly.

[0027] This application's STT technology utilizes advanced speech recognition algorithms to effectively process various intonations and pronunciations. This enables learners to convert their pronunciation into text more clearly, which is analyzed in real-time by an AI-based evaluation system. During this process, the AI ​​system assesses the grammatical accuracy and suitability of the converted text for business environments, providing feedback to the learner.

[0029] STT technology, which is one of the core components of the present invention, includes a process of continuously collecting and converting a learner's pronunciation and displaying it as text, as described in FIG. 1. This is tightly integrated with a user interface to create an environment where the learner can check the text simultaneously with speaking. This real-time conversion and feedback system supports the learner in receiving immediate correction during the language learning process, which significantly improves learning efficiency compared to existing Korean language learning systems.

[0031] The AI ​​evaluation system described in Fig. 2 analyzes text provided by the STT module to evaluate the learner's pronunciation, grammar, vocabulary selection, etc. The evaluation results are delivered to the learner as immediate feedback, providing the learner with the opportunity to correct and improve their speech. This real-time feedback system is particularly effective for acquiring language skills suitable for a business environment.

[0033] This invention provides several improvements that differentiate it from existing Korean language learning solutions. In particular, through STT technology, learners are provided with the opportunity to repeatedly listen to and correct their pronunciation, which greatly aids in pronunciation correction. Furthermore, by focusing on the specific use case of business conversation and providing learning scenarios based on language usage examples in actual work situations, learners can obtain a more practical conversational learning experience.

[0035] This invention is useful for various user groups, such as foreign workers and employees of multinational corporations, and is particularly expected to be utilized in business environments where Korean language proficiency is required. Learners can simulate various business scenarios through the application and continuously improve their language skills through real-time feedback. In this way, learners can effectively acquire the Korean conversational skills necessary for actual business environments.

[0037] The AI-based evaluation system serves as a core component of the business Korean learning application. It assesses the pronunciation, grammar, and vocabulary choices of converted text to determine suitability for a business environment and provides feedback. This system operates based on the learner's utterances converted into text in real-time using STT technology. The AI ​​utilizes complex algorithms to analyze various aspects of the text, helping learners use more accurate expressions.

[0039] The AI ​​evaluation system determines the suitability of text by specifically considering business terminology and context. This enables learners to construct sentences usable in real business environments, ensuring appropriate vocabulary selection and grammatical accuracy. The AI ​​also analyzes the learner's pronunciation to assess accuracy and suggests methods for improvement as needed.

[0041] The processing of the AI ​​evaluation system presented in Fig. 2 consists of a step in which converted text is input and then evaluated by classifying it into three main elements: pronunciation, grammar, and vocabulary selection. In each evaluation step, the AI ​​performs sophisticated comparison and analysis to ensure the use of language appropriate for a business environment. Feedback is provided to the user immediately, offering the learner the opportunity to correct their speech in real time. This feedback helps the learner effectively acquire the Korean language skills required for business conversation.

[0043] Furthermore, this system stores feedback to support repetitive learning and enables learners to continuously improve their learning by reviewing previously received feedback. This feature contributes to the gradual improvement of learners' language skills.

[0045] This AI-based evaluation system significantly enhances learning efficiency by providing real-time feedback compared to traditional learning methods. In particular, it offers a learning experience specialized for business environments, enabling learners to more effectively acquire the language skills required in actual work situations. This approach provides learners with a more practical and personalized learning experience, offering value that differentiates it from existing Korean language learning solutions.

[0047] This invention provides an application that enables Korean language learners to learn Korean pronunciation suitable for business environments. In particular, through a Text-to-Speech (TTS) function, it supports non-native Korean learners in correcting their pronunciation by providing correct pronunciation in audio form. This application converts the learner's speech into text using Speech-to-Text (STT) technology and analyzes the converted text through an AI evaluation system to determine its suitability for a business environment. The evaluation results are provided to the learner as immediate feedback, offering an opportunity to correct pronunciation or grammatical errors.

[0049] The TTS function plays an important role in enabling Korean language learners to listen to correct pronunciation and correct their own pronunciation. Learners can improve the accuracy of their pronunciation by using the TTS function to repeatedly listen to the correct pronunciation and compare it with their own pronunciation. Figure 1 shows the operation process of the STT and TTS modules. These modules perform the process of converting the content spoken by the learner into text in real time and outputting the converted text back as speech.

[0051] This application is specialized for learning business Korean and provides a learning environment based on various business scenarios. Figure 3 schematically illustrates the structure of the user interface and the scenario-based learning environment. This interface allows learners to experience practical conversational learning by simulating various business situations.

[0053] This invention offers several improvements compared to existing Korean language learning methods. In particular, it enhances learning efficiency by providing real-time feedback and opportunities for pronunciation correction. This approach helps learners effectively acquire the Korean conversational skills required in actual business environments. The TTS function allows learners to repeatedly listen to and correct their pronunciation, providing significant assistance in pronunciation correction. By creating an environment where learners can modify and improve their speech in real time, this system enables faster and more effective language acquisition than existing learning methods.

[0055] By using this application to practice various business scenarios, learners can effectively improve the language skills required in real-world work situations. This approach is particularly useful for diverse user groups, such as international students, foreign workers, and employees of multinational corporations, and is expected to be utilized in business environments where Korean language proficiency is required.

[0057] This invention is an application for learning business Korean, specifically designed to enable learners to receive immediate correction through a real-time feedback system. The system converts the learner's speech into text in real time using Speech-to-Text (STT) technology and provides feedback by analyzing the converted text through an AI-based evaluation system. This immediate feedback significantly improves learning efficiency by providing learners with the opportunity to instantly recognize and correct errors made during speech.

[0059] This application consists of an STT module, an AI evaluation system, and a Text-to-Speech (TTS) function. The STT module converts the learner's pronunciation into text in real time and displays it on the screen. As described in Fig. 2, the AI ​​evaluation system evaluates the grammar, pronunciation, and vocabulary selection of the converted text, determines its suitability for a business environment, and provides feedback. This evaluation process supports the learner in immediately correcting their speech, which plays an important role, especially in the context of business conversations.

[0061] The TTS function provides significant assistance to learners in correcting their pronunciation. Learners can listen to the converted text as Korean speech, giving them the opportunity to correct their pronunciation by comparing it with their own. This is illustrated through the operation of the STT and TTS modules in Fig. 1. These functions enable learners to more effectively acquire the language skills required in a business environment.

[0063] A key advantage of this invention is that learners can receive immediate correction through real-time feedback. This serves as a crucial factor in enhancing learning efficiency and provides a faster and more effective learning experience compared to existing Korean language learning solutions. In particular, when combined with learning scenarios specialized for business environments, learners can strengthen practical language skills applicable in actual work situations.

[0065] This application is useful for diverse user groups, such as foreign workers and employees of multinational corporations, and is expected to be utilized in business environments where Korean language proficiency is required. Through the application, learners can simulate various business scenarios and continuously improve their language skills via real-time feedback. This approach provides learners with the opportunity to effectively acquire the Korean conversational skills necessary for actual business settings.

[0067] This invention offers various improvements that differentiate it from existing Korean language learning methods, particularly by enhancing learning efficiency through the provision of real-time feedback and opportunities for pronunciation correction. These differentiations are realized through the combination of an AI-based evaluation system and STT and TTS technologies, which provides learners with a personalized learning experience, enabling faster and more effective language acquisition than conventional methods.

[0069] The present invention is an application for learning business Korean that helps learners effectively improve their Korean conversational skills by simulating various business situations. This application provides business conversation scenarios through a user interface and creates an environment where learners can receive real-time feedback. This user interface is designed to enable learners to naturally acquire Korean expressions necessary in a business environment.

[0071] This application converts a learner's speech into text in real time using Speech-to-Text (STT) technology. The converted text is analyzed by an AI-based evaluation system, which evaluates the learner's pronunciation, grammar, and vocabulary choices as described in Fig. 2 to determine if they are suitable for a business environment and provides feedback. The feedback enables the learner to immediately correct and improve their speech.

[0073] The user interface helps learners experience various business scenarios. Figure 3 schematically illustrates the structure of this interface. The user interface includes features that allow learners to simulate various roles within the context of business conversations. For example, learners can participate in virtual business meetings or practice consultations with customers. This scenario-based learning provides learners with the opportunity to effectively acquire the language skills required in real-world work situations.

[0075] The Text-to-Speech (TTS) function of this application is of great help to learners in correcting their pronunciation. Learners can listen to the converted text as Korean speech, which is illustrated in the operation of the STT and TTS modules in Fig. 1. Learners are provided with the opportunity to compare their pronunciation with that of a native speaker and to correct it.

[0077] An important feature of the present invention is a real-time feedback system. This system significantly improves learning efficiency by providing learners with the opportunity to immediately recognize and correct errors made during speech. This immediate feedback helps learners acquire the pronunciation and expressions required for business conversation more accurately.

[0079] This application offers several improvements that differentiate it from existing Korean language learning solutions. In particular, combined with learning scenarios specialized for business environments, it enables learners to strengthen practical language skills applicable in actual work situations. Furthermore, by combining STT and TTS technologies, it provides significant assistance in pronunciation correction by allowing learners to repeatedly listen to their own pronunciation.

[0081] This system is useful for diverse user groups, such as foreign workers and employees of multinational corporations, and is expected to be utilized in business environments where Korean language proficiency is required. Learners can simulate various business scenarios through the application and continuously improve their language skills through real-time feedback. This approach provides learners with the opportunity to effectively acquire the Korean conversational skills necessary for actual business settings.

[0083] This invention is an application for learning business Korean that provides a customized learning experience to learners through a scenario-based learning and feedback system. The application utilizes Speech-to-Text (STT) technology to convert a learner's speech into text and analyzes the converted text using an AI-based evaluation system to determine its suitability for a business environment. The results of this analysis are provided to the learner as real-time feedback.

[0085] Scenario-based learning is designed to allow users to simulate various business situations and improve their conversational skills in real-world work environments. The user interface described in Fig. 3 is a key element supporting this scenario-based learning, enabling learners to practice conversations appropriate for each situation and receive immediate feedback through an AI evaluation system. The user interface is intuitive and designed for easy navigation, thereby maximizing learning efficiency.

[0087] The AI-based evaluation system assesses the grammar, pronunciation, and vocabulary selection of text spoken by learners, focusing particularly on analyzing their suitability for business environments. The evaluation results are provided to learners as immediate feedback, offering them the opportunity to correct and improve their speech in real time.

[0089] The Text-to-Speech (TTS) function provides learners with the opportunity to listen to correct Korean pronunciation and correct their own pronunciation. Learners can use the TTS function to listen to converted text as Korean speech, and through this, they can compare and correct their own pronunciation with that of a native speaker. This is explained through the operation process of the STT and TTS modules in Fig. 1.

[0091] The main advantage of this application is that it enables learners to effectively acquire the language skills required in real business environments by providing a customized learning experience. Learning content specialized for business scenarios and a real-time feedback system offer value that differentiates them from existing Korean language learning solutions. In particular, the feature that integrates STT and TTS technologies, allowing learners to repeatedly listen to and correct their pronunciation, is of great assistance to pronunciation correction.

[0093] This invention is useful for various user groups, including foreign workers, employees of multinational corporations, and those working in business environments where Korean language proficiency is required. Through this application, learners can efficiently improve their necessary language skills and strengthen their business conversational abilities through practical conversational learning experiences. This approach enables faster and more effective acquisition of the Korean language compared to existing learning methods.

[0095] The present invention provides an application for effectively supporting business Korean language learning through a processor-based implementation system. This system integrates Speech-to-Text (STT) conversion, AI-based evaluation, and Text-to-Speech (TTS) feedback mechanisms to provide the user with a comprehensive learning experience.

[0097] This application utilizes STT technology to convert learners' speech into text in real time, enabling them to instantly check their pronunciation. The converted text is analyzed by an AI evaluation system that assesses pronunciation accuracy, grammatical correctness, and suitability for a business environment. Using complex algorithms, the AI-based evaluation system meticulously analyzes the learner's speech and provides immediate feedback, helping learners quickly identify and correct errors in their delivery.

[0099] The TTS function converts the converted text into Korean speech, providing the learner with the opportunity to compare it with their own pronunciation. Through this, the learner can repeatedly listen to and correct native speaker pronunciation, thereby improving the accuracy of their pronunciation. As described in Fig. 1, the operation of this TTS technology consists of a process in which the learner's pronunciation is converted into text in real time and then output as speech, together with an STT module.

[0101] The user interface provides a learning environment based on various business scenarios, enabling learners to simulate real-world work environments. This interface is designed to allow learners to practice diverse business situations and continuously improve their language skills through real-time feedback.

[0103] This invention offers several improvements compared to existing Korean language learning solutions. In particular, by combining STT and TTS technologies, it provides significant assistance in pronunciation correction by offering learners the opportunity to repeatedly listen to and correct their own pronunciation. Furthermore, through learning scenarios specialized for business environments and a real-time feedback system, learners can effectively acquire the language skills required in actual work situations. This differentiated learning experience greatly enhances learning efficiency and is useful for diverse user groups.

[0105] This invention is expected to be particularly useful in business environments where Korean language proficiency is required. Foreign workers and employees of multinational corporations can effectively acquire the necessary Korean conversational skills through this application, enabling smooth communication during international conferences or business meetings. Differentiated from existing Korean learning methods, this invention provides learners with a more practical and customized learning experience.

[0107] The scope of protection of the present invention is not limited to the descriptions and expressions of the embodiments explicitly explained above. Furthermore, it is added once again that the scope of protection of the present invention cannot be limited by obvious changes or substitutions within the technical field to which the present invention pertains.

Claims

Claim 1 A method for providing a Korean language learning service through an AI-based application for business Korean language learning comprises: receiving a selection input from a learner's terminal regarding one or more learning scenarios corresponding to a business situation; querying conversation script information regarding the selected learning scenario from a preset database and controlling it to display on the screen of the learner's terminal or provide it as voice; receiving a learner's spoken voice from the learner's terminal; converting the received learner's spoken voice into text through a STT (Speech-To-Text) engine; analyzing the converted text in an AI-based evaluation module to determine pronunciation, grammar, vocabulary, and business suitability, and generating feedback information based on the judgment result; providing the learner's spoken voice as TTS (Text-To-Speech) voice based on the generated feedback information; displaying correction phrases on the screen regarding the learner's spoken voice based on the generated feedback information so that the learner can correct it in real time; and, if the learner re-utters the corrected expression or performs additional speech, repeating the conversion to STT and AI evaluation to continuously provide real-time feedback. A method for providing a business Korean learning service, comprising the step of presenting a future learning plan to the learner by calculating, storing, and displaying the learning progress of business Korean conversation.