Patent Description:
The recent advancement of technology has enabled users to control an electronic device in various ways, and the voice recognition is one way.

<CIT>, <CIT>, <NPL>), and <CIT> relate to methods of speech recognition.

<CIT> and <CIT>, <CIT> relate to methods of speech recognition in networked systems.

In a related-art voice recognition, a user prepares a voice recognition system and then, utters voice, and the voice recognition system receives voice uttered by the user, and performs an operation accordingly.

In this situation, when the user utters unintended voice, the voice recognition system still performs voice recognition of the user's voice, providing an incorrect voice recognition result. In this case, it is necessary that the user utters voice of a correct content again, which induces inconvenience.

Accordingly, a measure for providing an accurate voice recognition result corresponding to an intention of user's voice even when the user utters unintended voice.

Accordingly, an aspect of the disclosure is to provide an electronic device for, through a separate voice recognition module for recognizing only erroneously-uttered voice, recognizing the corresponding voice, and performing voice recognition of only the remaining voice other than the corresponding voice, and a voice recognition method thereof.

In accordance with an aspect of the present invention, there is provided an electronic device according to claim <NUM>.

The predetermined voice may include voice which is uttered with an intention of canceling voice uttered by a user prior to the predetermined voice.

The processor may perform voice recognition of only voice present after the predetermined voice in the user's voice through the first voice recognition module.

The predetermined voice may include voice which is meaninglessly uttered by a user.

The processor may control an operation of the electronic device based on the result of voice recognition.

The processor may, if a voice recognition score calculated for the predetermined voice by the second voice recognition module is greater than or equal to a predetermined threshold, perform voice recognition of only a part of the user's voice through the first voice recognition module.

The processor may, when the predetermined voice is not recognized in the user's voice through the second voice recognition module, control an operation of the electronic device based on the result of voice recognition of the user's voice through the first voice recognition module.

In accordance with another aspect of the present invention, there is provided a voice recognition method of an electronic device according to claim <NUM>.

The voice recognition method may further include controlling an operation of the electronic device based on the result of voice recognition.

The performing may include, if a voice recognition score calculated for the predetermined voice by the second voice recognition module is greater than or equal to a predetermined threshold, performing voice recognition of only a part of the user's voice through the first voice recognition module.

The voice recognition method may include, when the predetermined voice is not recognized in the user's voice through the second voice recognition module, controlling an operation of the electronic device based on the result of voice recognition of the user's voice through the first voice recognition module.

According to the various example embodiments described above, even if the user utters voice unintentionally during voice recognition, the corresponding voice is eliminated and the voice recognition is performed, and thus the user can perform an operation corresponding to an intention of utterance of the user's voice even if the user does not perform the voice recognition from the beginning again by uttering the corresponding voice again.

In addition, the voice recognition of the corresponding voice is performed through a separate module for recognizing only voice not intended by the user, thereby strengthening the voice recognition performance.

Hereinafter, example embodiments of the present disclosure will be described in greater detail with reference to the accompanying drawings.

<FIG> is a diagram illustrating an electronic device, according to an example embodiment.

Referring to <FIG>, an electronic device <NUM> is configured to receive input of voice uttered by a user <NUM>, and perform voice recognition of the user's voice and perform an operation according to an intention of utterance included in the user's voice.

For example, when voice uttered by the user <NUM>, "Tell me the weather in Seoul", is input, the electronic device <NUM> may perform voice recognition of the corresponding voice, and search for information relating to weather in Seoul and display on the screen or output the found information as an audio signal.

The electronic device <NUM> performing this function may be implemented integrally with a broadcast content reception device such as a television or a set-top box. However, this is only an example, and the electronic device <NUM> may be implemented as a device of various types such as a smartphone, a tablet PC, and the like, or may be implemented as a separate voice recognition device.

In a case that predetermined voice is present in the user's voice, the electronic device <NUM> is configured to perform voice recognition of only a part of the user's voice.

Here, the predetermined voice may include at least one of voice uttered by the user with the intention of canceling a voice uttered prior to the predetermined voice and voice uttered by the user meaninglessly.

For example, it is assumed that the user has uttered, "Tell me the weather in Suwon, or in Seoul". In this case, it may be understood that the expression "or" has been uttered with the intention of canceling the voice "Suwon" in "Tell me the weather in Suwon, or in Seoul".

In this case, the electronic device <NUM> may perform voice recognition of only "Tell me the weather in Seoul", which is uttered after "or" in "Tell me the weather in Suwon, or weather in Seoul", and provide the user with information about weather in Seoul according to the voice recognition result.

As another example, it is assumed that the user has uttered, "Tell me the um, weather in Seoul". In this case, it may be understood that the expression "um" is voice which is meaninglessly uttered by the user while hesitating in the middle of utterance.

In this case, the electronic device <NUM> may perform voice recognition of only "Tell me the weather in Seoul", which is the remaining voice where the "or" is excluded from "Tell me the um, weather in Seoul", and provide the user with information about weather in Seoul according to the voice recognition result.

As described above, according to the various example embodiments, even if voice requesting cancellation of the previous utterance or voice meaninglessly uttered by the user is input, voice recognition result corresponding to an intention of voice utterance of the user can be provided, which may enhance the user convenience.

<FIG> is a block diagram illustrating a configuration of an electronic device, according to an example embodiment.

Referring to <FIG>, the electronic device <NUM> may include a voice reception unit <NUM>, a storage unit <NUM>, and a processor <NUM>.

The voice reception unit <NUM> may receive user's voice. That is, the voice reception unit <NUM> may be implemented as a microphone, etc. and receive voice uttered by the user.

In this case, the microphone may be built in the electronic device <NUM> and be integrally formed with the electronic device <NUM>, or may be implemented as separated from the electronic device <NUM>. When implemented as separate from the electronic device <NUM>, the microphone may be implemented in a form that can be easily grabbed by the user or that can be laid on a table, etc. The microphone may be connected to the electronic device <NUM> by wires or a wireless network, to transmit the input user voice to the electronic device <NUM>.

The storage unit <NUM> may store a module for voice recognition (hereinafter, "voice recognition module").

Here, the voice recognition module is configured to, by means of a voice recognition module, perform voice recognition of the user's voice input through the voice reception unit <NUM>, and output the voice recognition result accordingly.

In this case, the voice recognition result may include information relating to a text into which the user's voice has been converted by voice recognition, a voice recognition score and a domain to which the voice belongs. An example of the voice recognition result may be shown as in the Table <NUM> below.

For example, the voice recognition module may, by performing voice recognition of user's voice, identify a text having a chance of matching with the user's voice, calculate a voice recognition score for each text on the basis of the chance that the text will match with the user's voice, and determine a text with the highest voice recognition score as a text corresponding to the user's voice. However, this is only an example, and the voice recognition module may perform voice recognition of the user's voice in various ways.

In this case, the voice recognition module may identify a domain to which the user's voice belongs from among a plurality of domains (for example, broadcast service, control command, application, etc.).

As described above, the voice recognition module may perform voice recognition of the user's voice and output information relating to a text into which the user's voice is converted, a voice recognition score and a domain to which the voice belongs.

Meanwhile, the storage unit <NUM> may store a first voice recognition module for recognizing user's voice and a second voice recognition module for recognizing only predetermined voice in the user's voice. That is, a voice recognition module stored in the storage unit <NUM> may include a first voice recognition module for recognizing user's voice and a second voice recognition module for recognizing only predetermined voice in the user's voice.

Here, the first voice recognition module may include a general voice recognition model which is modeled to recognize user's voice.

In contrast, the second voice recognition module may, unlike, the first voice recognition module, a voice recognition model which is modeled to recognize only predetermined voice.

To this end, the second voice recognition module may be in a state of being trained to recognize only a set of words (for example, "or", "again again", etc.) indicating voice uttered by the user to cancel the previous voice during utterance and a set of words (for example, "um", "uh", "ah", etc.) indicating voice uttered by the user meaninglessly during utterance.

The storage <NUM> may be implemented by various storage media such as a hard disk, a nonvolatile memory, and/or a volatile memory.

The processor <NUM> may control an overall operation of the electronic device <NUM>. To this end, the processor <NUM> may include a central processing unit (CPU), a random access memory (RAM), and a read only memory (ROM), and may execute an arithmetic operation or data processing associated with controlling the other elements included in the electronic device <NUM>.

First, when user's voice is input, the processor <NUM> may drive a voice recognition module stored in the storage <NUM> and perform voice recognition of the user's voice.

In this case, when predetermined voice is present upon voice recognition through the voice recognition module, the processor <NUM> is configured to control voice recognition to be performed for only a part of the voice recognition result excluding predetermined voice.

In detail, when user's voice is input via the voice reception unit <NUM>, the processor <NUM> may drive the second voice recognition module and perform voice recognition of the user's voice input via the voice reception unit <NUM>.

In addition, in a case that predetermined voice is present in the user's voice upon voice recognition through the second voice recognition module, the processor <NUM> may perform voice recognition of only a part of the user's voice through the first voice recognition module.

To this end, the processor <NUM> may identify whether the predetermined voice is included in the user's voice based on the voice recognition result of the second voice recognition module.

In detail, the voice uttered by the user with the intention of canceling the previously-uttered voice is voice which is uttered when the user makes an erroneous utterance by mistake and desires to cancel the utterance, which may include, for example, "or", "again again", etc..

In addition, the voice uttered by the user meaninglessly is voice which is meaninglessly uttered while the user is thinking about what to say next during utterance, which may include, for example, "um", "uh", "ah", etc..

In this case, as described above, the second voice recognition module is in a state of being modeled to recognize only voice to cancel the previous voice and voice with little significance, and thus the processor <NUM> may identify whether the corresponding voice is present in the user's voice based on the voice recognition result of the second voice recognition module.

In addition, in a case that predetermined voice is present in the user's voice upon voice recognition through the second voice recognition module, the processor <NUM> is configured to perform voice recognition of only a part of the user's voice through the first voice recognition module.

First, the processor <NUM> may, through the first voice recognition module, perform voice recognition of only voice present after the predetermined voice in the user's voice.

That is, in a case that the predetermined voice recognized through the second voice recognition module corresponds to voice uttered with the intention of canceling voice uttered by the user prior to the predetermined voice, the processor <NUM> may perform voice recognition of only voice present after the predetermined voice in the user's voice through the first voice recognition module.

In detail, in a case that voice to cancel the previously-uttered voice is present, when voice recognition is performed with respect to voice present prior to the corresponding voice, a voice recognition result not corresponding to the intention of utterance of the user may be provided. Accordingly, in a case that voice for canceling the previously-uttered voice is present in the user's voice, the processor <NUM> may perform voice recognition of only voice present after the voice for canceling the previously-uttered voice.

In this case, the processor <NUM> may identify an interval (for example, a time interval in which the corresponding voice is present in the entire user's voice) in which the voice for canceling the previously-uttered voice is present in the user's voice, and eliminate voice to the corresponding interval from the user's voice and then, perform voice recognition of the user's voice through the first voice recognition module.

In addition, the processor <NUM> may, through the first voice recognition module, perform voice recognition of only the remaining voice excluding the predetermined voice in the user's voice.

That is, in a case that voice uttered by the user meaninglessly is present, there is a possibility that the corresponding voice is recognized as voice associated with voices uttered by the user before and after, providing a voice recognition result that does not correspond to the intention of utterance of the user. Accordingly, in a case that voice meaninglessly uttered by the user is present, the processor <NUM> may perform voice recognition of only the remaining voice excluding the voice meaninglessly uttered by the user.

In this case, the processor <NUM> may identify an interval in which the voice meaninglessly uttered by the user is present in the user's voice, and eliminate voice of the corresponding interval from the user's voice and then, perform voice recognition of the user's voice through the first voice recognition module.

Meanwhile, the processor <NUM> may control an operation of the electronic device <NUM> based on the voice recognition result.

That is, in a case that voice for canceling the previously-uttered voice in the user's voice and voice meaninglessly uttered by the user are recognized through the second voice recognition module, the processor <NUM> may perform voice recognition of only voice present after the corresponding voice and the remaining voice excluding the corresponding voice through the first voice recognition module, and control the operation of the electronic device <NUM> based on the voice recognition result of the first voice recognition module.

As in the example described above, when voice recognition of "Tell me the weather in Seoul" is performed through the first voice recognition module, "Tell me the weather in Seoul" may be converted into text and output as the voice recognition result.

In this case, the processor <NUM> may identify an intention of utterance of the user through the corresponding text, transmit a keyword (for example, Seoul, weather, etc.) for searching for weather in Seoul, and receive, as a search result thereof, information relating to weather in Seoul and display it or output it through an audio signal.

However, this is only an example, and the processor <NUM> may control the electronic device <NUM> to perform various operations (for example, channel adjustment, volume control, application execution, etc.) based on the voice recognition result of the first voice recognition module.

However, as described above, the voice recognition result output from the voice recognition module may include a voice recognition score.

In this case, the voice recognition score is generated by digitizing the accuracy of how the text generated as a result of voice recognition matches with the voice actually uttered, and thus, when the voice recognition score is low, it may be understood that the voice recognition result is inaccurate.

Accordingly, even when the voice recognized score calculated by the second voice recognition module is low, when voice recognition is performed for only a part of the user's voice, there is a possibility that another operation irrelevant to the user's intention of utterance will be performed.

Accordingly, in a case that a voice recognition score calculated for predetermined voice by the second voice recognition module is greater than or equal to a predetermined threshold, the processor <NUM> may perform voice recognition of only a part of the user's voice through the first voice recognition module.

In this case, the predetermined threshold may be preset to a default value at the time of manufacturing of the electronic device <NUM>, and then modified by the user.

Meanwhile, in a case that predetermined voice is not recognized in the user's voice through the second voice recognition module, the processor <NUM> is configured to control the operation of the electronic device <NUM> based on the voice recognition result through the first voice recognition module.

That is, as a result of voice recognition through the second voice recognition module, in a case that voice uttered by the user to cancel the previously-uttered voice and voice meaninglessly uttered by the user are not present in the user's voice, it may be considered that only voice uttered by the user intended as a subject of voice recognition is present in the user's voice.

Accordingly, upon voice recognition through the second voice recognition module, in a case that voice for canceling the previous voice and voice with little meaning are not present in the user's voice, the processor <NUM> may perform voice recognition of the entire user's voice through the first voice recognition module, and control the operation of the electronic device <NUM> based on the voice recognition result of the first voice recognition module.

For example, it will be assumed that the "Tell me the weather in Seoul" uttered by the user is input through the voice reception unit <NUM>.

The processor <NUM> may drive the second voice recognition module and perform voice recognition of "Tell me the weather in Seoul".

In this case, in "Tell me the weather in Seoul", voice for canceling the previous voice and meaningless voice are not present, and thus the second voice recognition module may not recognize "Tell me the weather in Seoul".

Accordingly, the processor <NUM> may, based on the voice recognition result of the second voice recognition module, identify that the voice for canceling the previous voice and the meaningless voice are not present in "Tell me the weather in Seoul".

In this case, the processor <NUM> may perform voice recognition of "Tell me the weather in Seoul" through the first voice recognition module.

Accordingly, when voice recognition of "Tell me the weather in Seoul" is performed through the first voice recognition module, "Tell me the weather in Seoul" may be converted into text and output as the voice recognition result.

Meanwhile, in the example described above, when user's voice is input through the voice reception unit <NUM>, the processor <NUM> may drive the first and second voice recognition modules together and perform voice recognition of the user's voice.

In this case, when it is determined based on the recognition result of the second voice recognition module, voice for canceling the previous voice and meaningless voice are present in the user's voice, the processor <NUM> may suspend voice recognition performed by the first voice recognition module, and eliminate a result of recognition in the first voice recognition module up to the time point of suspension.

In addition, the processor <NUM> may perform voice recognition again of only voice after the voice for canceling the previous voice in the user's voice through the first voice recognition module, or may perform voice recognition again of only the remaining voice other than the meaningless voice in the user's voice through the first voice recognition module.

Thereafter, the processor <NUM> may control an operation of the electronic device <NUM> based on the voice recognition result of the first voice recognition module.

According to the various example embodiments described above, even if voice unintentionally uttered by the user is input during voice recognition, the electronic device <NUM> eliminates the corresponding voice and performs voice recognition, and thus it is possible to perform an operation corresponding to a user's intention for voice utterance, even if the voice recognition is not performed again from the beginning.

In particular, the electronic device <NUM> includes an additional module for recognizing only voice unintended by the user, and thus the recognition performance for the corresponding voice can be strengthened.

In addition, the electronic device <NUM> may perform voice recognition of the user's voice and voice recognition of the voice unintended by the user in parallel, and thus it is possible to eliminate the voice unintended by the user from the user's voice without delay and perform an operation corresponding to the intention of user's utterance.

<FIG> and <FIG> are diagrams illustrating a voice recognition operation of an electronic device, according to various example embodiments.

For example, it will be assumed that, as illustrated in <FIG>, the "Tell me the weather in Suwon, or in Seoul" uttered by the user <NUM> is input through the voice reception unit <NUM>.

The processor <NUM> may drive the second voice recognition module and perform voice recognition of "Tell me the weather in Suwon, or in Seoul".

Here, the second voice recognition module is modeled to recognize voice for canceling the previously-uttered voice, and thus voice for canceling the previously-uttered voice, "or", may be recognized in the "Tell me the weather in Suwon, or in Seoul". In this case, the processor <NUM> may identify that "or" which is voice for canceling the previously-uttered voice is present in the user's voice based on the voice recognition result of the second voice recognition module. In addition, the processor <NUM> may identify an interval in which "or" is present in "Tell me the weather in Suwon, or in Seoul".

In this case, the processor <NUM> may eliminate voice up to the interval in which "or" is present, that is, "in Suwon, or" in "Tell me the weather in Suwon, or in Seoul", and perform voice recognition of only "Tell me the weather in Seoul" present after "or" in the user's voice through the first voice recognition module.

Accordingly, the processor <NUM> may search for weather in Seoul based on the voice recognition result of the first voice recognition module and display information relating to the weather in Seoul on the screen.

As another example, it will be assumed that, as illustrated in <FIG>, "Tell me the um, weather in Seoul" uttered by the user <NUM> is input through the voice reception unit <NUM>.

The processor <NUM> may drive the second voice recognition module and perform voice recognition of "Tell me the um, weather in Seoul".

Here, the second voice recognition module is modeled to recognize voice meaninglessly uttered by the user, and may thus recognize voice meaninglessly uttered by the user, "um", in "Tell me the um, weather in Seoul". In this case, the processor <NUM> may identify that "um" which is voice meaninglessly uttered by the user is present in the user's voice based on the voice recognition result of the second voice recognition module. In addition, the processor <NUM> may identify an interval in which "um" is present in "Tell me the um, weather in Seoul".

In this case, the processor <NUM> may eliminate voice in the interval in which "um" is present, that is, "um,", in "Tell me the um, weather in Seoul", and perform voice recognition of only "Tell me the weather in Seoul" from which "um" is eliminated in the user's voice through the first voice recognition module.

<FIG> is a flowchart illustrating a process of performing voice recognition of an electronic device, according to an example embodiment.

First, user's voice may be input, at operation S510.

Then, voice recognition of the user's voice may be performed through the first and second voice recognition modules, at operations S520 and S530.

In this case, in a case that a canceled voice is recognized in the user's voice upon voice recognition of the second voice recognition module, at operation S540, canceled voice and voice present prior to the canceled voice may be eliminated from the user's voice, at operation S550.

Then, in a case that meaningless voice is recognized in the user's voice upon voice recognition of the second voice recognition module, at operation S550, the meaningless voice may be eliminated from the user's voice, at operation S560.

Then, voice recognition of the entire user's voice that have been performed through the first voice recognition module may be suspended, voice recognition of the user's voice from which a part of voice has been eliminated may be performed based on at least one of the canceled voice and the meaningless voice, at operation S510. The corresponding operation may be performed based on the voice recognition result through the first voice recognition module, at operation S580.

However, in a case that the canceled voice and the meaningless voice are not recognized in the user's voice through the second voice recognition module, the corresponding operation may be performed based on the voice recognition result of the user's voice through the first voice recognition module.

<FIG> is a block diagram illustrating a detailed configuration of an electronic device, according to an example embodiment.

Referring to <FIG>, the electronic device <NUM> may further include, in addition to the elements illustrated in <FIG>, a reception unit <NUM>, a signal processing unit <NUM>, an image signal generation unit <NUM>, an output unit <NUM>, an input unit <NUM>, an interface unit <NUM>, and a remote signal reception unit <NUM>. The operations of such elements may be controlled by the processor <NUM>.

The storage unit <NUM> may store an operating system (OS) for controlling overall operations of the elements of the electronic device <NUM> and a command or data related to the elements of the electronic device <NUM>.

Accordingly, the processor <NUM> may drive the operating system to control a number of hardware or software elements connected to the processor <NUM>, load a command or data received from at least one of the other elements onto a volatile the memory and process it, and store various data in a non-volatile memory.

Meanwhile, the storage unit <NUM> may, as illustrated in <FIG>, store a first voice recognition module <NUM> and second voice recognition module <NUM> for performing voice recognition.

Here, the first voice recognition module <NUM> may include a general voice recognition model which is modeled to recognize user's voice. The second voice recognition module <NUM> may include, unlike the first voice recognition module, a voice recognition model which is modeled to recognize only predetermined voice.

At least a part of the voice recognition modules may be embodied as software, a program and so on, and may be implemented (for example, execution) by the processor <NUM>.

The reception unit <NUM> may include various circuitry to receive a broadcast content (or a broadcast signal). The broadcast content may include images, audio, and additional data (for example, an EPG). The reception unit <NUM> may receive the broadcasting content from various sources such as terrestrial broadcasting, cable broadcasting, satellite broadcasting, Internet broadcasting, etc..

For example, the reception unit <NUM> may include various receiver circuitry, such as, for example, and without limitation, a tuner (not shown), a demodulator (not shown), an equalizer (not shown), or the like, to receive a broadcast content received from a broadcasting station.

The signal processing unit <NUM> may perform signal processing of a content received via the reception unit <NUM>. More specifically, the signal processing unit <NUM> may perform signal processing of an image included in the content into a form that can be outputted at a display (not shown) of the output unit <NUM>, by performing operations such as decoding, scaling, or frame rate conversion. Further, the signal processing unit <NUM> may perform signal processing such as decoding on the audio included in the contents and perform signal processing on the audio to a format that can be outputted in the audio output unit (not shown) of the output unit <NUM>.

The image signal generation unit <NUM> may generate a Graphic User Interface (GUI) for a user. Further, the image signal generation unit <NUM> may add the generated GUI to an image that is processed by the signal processing unit <NUM>.

The output unit <NUM> may include a display (not shown) for displaying an image outputted from the signal processing unit <NUM> and a GUI generated by the image signal generation unit <NUM>, and an audio output unit (not shown) for outputting audio outputted from the signal processing unit <NUM>.

In this case, the display (not shown) may be implemented as a Liquid Crystal Display (LCD) display, an Organic Light Emitting Diodes (OLED) display, or the like. , and the audio output unit (not shown) may be implemented as a speaker (not shown), an external output terminal (not shown), or the like.

The input unit <NUM> may include various input circuitry that receives various user commands. The processor <NUM> may perform a function corresponding to the user command input through the input unit <NUM>.

For example, the input unit <NUM> may receive a user command to perform the operations of switching channels, controlling volume, and the like, and the processor <NUM> may switch channels or adjust volume according to the input user command.

In particular, the input unit <NUM> may receive user's voice, and perform voice recognition of the user's voice and receive input of a user's command for initiating a voice recognition mode that operates correspondingly. In this case, the processor <NUM> may, when the voice recognition mode is initiated, receive user's voice uttered within a predetermined distance via the voice reception unit <NUM>, and perform a voice recognition operation on the user's voice through the first voice recognition module and the second voice recognition module.

To achieve this, the input unit <NUM> may include various input circuitry, such as, for example, and without limitation, an input panel. The input panel may be implemented by using a touch pad, a key pad provided with various function keys, number keys, special keys, character keys, etc., or a touch screen.

The interface unit <NUM> may include various circuitry that connects various other electronic devices (not shown) and the electronic device <NUM>. In this case, the processor <NUM> may transmit data which is pre-stored in the electronic device <NUM> to another electronic device (not shown) through the interface unit <NUM>, or receive data from an electronic device (not shown).

For example, the interface unit <NUM> may include various interface circuitry, such as, for example, and without limitation, at least one of a High-Definition Multimedia Interface (HDMI) input terminal, a component input terminal, a PC input terminal, and a USB input terminal, or the like.

The remote control signal reception unit <NUM> may include various circuitry that receives a remote control signal input from a remote controller (not shown).

In this case, the remote control signal reception unit <NUM> may receive various remote control signals. For example, the remote control signal receiver <NUM> may receive a remote control signal to perform the operations of switching channels, controlling volume, and the like, and the processor <NUM> may switch channels in the electronic device <NUM> or control volume according to the received remote control signal.

In particular, the remote control signal reception unit <NUM> may receive a remote control signal for initiating the voice recognition mode. In this case, the processor <NUM> may, when the voice recognition mode is initiated, receive user's voice uttered within a predetermined distance via the voice reception unit <NUM>, and perform a voice recognition operation on the user's voice through the first voice recognition module and the second voice recognition module.

<FIG> is a flowchart illustrating a voice recognition method of an electronic device, according to an example embodiment.

Meanwhile, the electronic device according to an example embodiment may store a first voice recognition module for recognizing user's voice and a second voice recognition module for recognizing only predetermined voice in the user's voice.

First, user's voice may be input, at operation S710.

Then, in a case that predetermined voice is present in the user's voice upon voice recognition through the second voice recognition module, voice recognition of only a part of the user's voice is performed through the first voice recognition module, at operation S720.

Here, the predetermined voice may include voice uttered by the user with the intention of canceling voice uttered prior to the predetermined voice, and voice uttered by the user meaninglessly.

At operation S720, through the first voice recognition module, voice recognition of only voice present after the predetermined voice in the user's voice may be performed.

In addition, the predetermined voice may include voice meaninglessly uttered by the user.

At operation S720, through the first voice recognition module, voice recognition of only the remaining voice other than the predetermined voice in the user's voice may be performed.

Meanwhile, an operation of the electronic device may be controlled based on the voice recognition result.

In addition, at operation S720, in a case that a voice recognition score calculated for predetermined voice by the second voice recognition module is greater than or equal to a predetermined threshold, voice recognition of only a part of the user's voice may be performed through the first voice recognition module.

In addition, in a case that predetermined voice is not recognized in the user's voice through the second voice recognition module, the operation of the electronic device is controlled based on the voice recognition result of the user's voice through the first voice recognition module.

Meanwhile, the first and second voice recognition modules and a method for performing voice recognition through the first and second voice recognition modules have been described above.

A non-transitory computer-readable medium where a program for sequentially performing the voice recognition method of the electronic device may be provided.

The non-transitory computer readable medium refers to a medium that stores data semi-permanently rather than storing data for a very short time, such as a register, a cache, a memory or etc., and is readable by an device. In detail, the above-described various applications or programs may be stored in the non-transitory computer readable medium, for example, a compact disc (CD), a digital versatile disc (DVD), a hard disc, a Blu-ray disc, a universal serial bus (USB), a memory card, a read only memory (ROM), and the like, and may be provided.

Claim 1:
An electronic device, comprising:
a voice reception unit (<NUM>) configured to receive a user voice input; and
a processor (<NUM>) configured to:
receive the user voice input through the voice reception unit (<NUM>),
based on a predetermined voice input being identified in the user voice input by performing a function corresponding to a voice recognition through a voice recognition model which is configured to recognise only the predetermined voice input, obtain a text corresponding to a part of the user voice input excluding the predetermined voice input by performing a function corresponding to a voice recognition through a general voice recognition model which is configured to recognise the user voice input,
based on the predetermined voice input not being identified in the user voice input by performing the function corresponding to the voice recognition through the voice recognition model which is configured to recognise only the predetermined voice input, obtain a text corresponding to the user voice input by performing the function corresponding to the voice recognition through the general voice recognition model which is configured to recognise the user voice input, and
perform a function corresponding to the obtained text.