KR20130134545A - System and method for digital television voice search using remote control - Google Patents

System and method for digital television voice search using remote control Download PDF

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Publication number
KR20130134545A
KR20130134545A KR1020120058134A KR20120058134A KR20130134545A KR 20130134545 A KR20130134545 A KR 20130134545A KR 1020120058134 A KR1020120058134 A KR 1020120058134A KR 20120058134 A KR20120058134 A KR 20120058134A KR 20130134545 A KR20130134545 A KR 20130134545A
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KR
South Korea
Prior art keywords
voice
top box
search
data
search word
Prior art date
Application number
KR1020120058134A
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Korean (ko)
Inventor
정영덕
Original Assignee
주식회사 다음커뮤니케이션
주식회사 다음티브이
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to KR1020120058134A priority Critical patent/KR20130134545A/en
Publication of KR20130134545A publication Critical patent/KR20130134545A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42203—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] sound input device, e.g. microphone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
    • H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
    • H04N21/42222—Additional components integrated in the remote control device, e.g. timer, speaker, sensors for detecting position, direction or movement of the remote control, microphone or battery charging device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand

Abstract

The present invention relates to a digital TV voice search system and method using a remote control, and an object of the present invention is to recognize a voice through a remote control without mounting an expensive voice recognition module for voice recognition and reading in the remote control or set-top box. It is to provide a digital TV voice search system and method using a remote control that can implement the selection and execution of the corresponding content or menu.
Digital TV voice search system using a remote control according to the present invention includes a remote control having a microphone for receiving a user's spoken voice, and a voice transmission module for wirelessly transmitting the voice signal input through the microphone to the set-top box; A set-top box which receives a voice signal from a voice transmitting module of the remote controller, processes the voice signal into voice data, and transmits the voice signal to a voice processing server; The voice processing server performing voice recognition on voice data received from the set top box, and transmitting information corresponding to a search word derived by the voice recognition to the set top box; And the set-top box configured to provide an image corresponding to the information received from the voice processing server to the TV.

Description

Digital TV voice search system and method using remote control {SYSTEM AND METHOD FOR DIGITAL TELEVISION VOICE SEARCH USING REMOTE CONTROL}

The present invention relates to a digital TV voice search system and method, and more particularly, to a digital TV voice search system using a remote controller capable of recognizing and inputting a voice to a remote controller to search and execute a corresponding multimedia content or menu. It is about a method.

With the development of digital technology, broadcasting services through Broadband Convergence Network (BcN) are increasing. In particular, over the air, wired, terrestrial, cable, as well as TV banking, Internet search, etc. Digital broadcast services that can provide one-way / two-way services have attracted attention.

The current digital TV service is a form in which a user is provided with VOD or other services by operating a keypad including a button of a remote controller. Compared to a computer having a user interface through a keyboard and a mouse, digital TV has not shown any user interface other than a remote control until now. This is because the type of service through digital TV is still limited, and on the contrary, only a service type dependent on the remote controller is provided. Therefore, when various services are provided in the future, the remote controller has a limitation as an interface.

In order to overcome these limitations, a user interface for searching and executing contents based on speech recognition has been actively researched.

In other words, the conventional TV provides a button-type remote controller for user operation, but recently, by incorporating voice recognition technology into a digital TV, a user voice is uttered by selecting a content, selecting a specific menu, inputting a specific command, watching a specific channel, and the like. It can be implemented through:

However, in order to identify and execute content desired by a user through voice input, a voice recognition module that can recognize and process user spoken voice is required.

Looking at the digital TV voice search system applying the conventional voice recognition technology, the remote control or set-top box with the voice receiving means, the configuration that is equipped with a voice recognition module that can recognize and read the voice signal input through the voice receiving means. Through the above-described digital TV voice search function is implemented.

However, when the voice recognition module is mounted in the remote control or the set-top box to implement the voice search function as described above, the manufacturing cost of the device (ie, the remote control or the set-top box) provided for the digital TV service is greatly increased, which is a consumer. As a result of the burden, there is another limitation in that the user refrains from using the voice search function and finally escapes the user interface method that depends on the button method.

The present invention has been made to solve the above problems, an object of the present invention is to search for and execute digital TV content (or menu, etc.) using a remote control, high cost for voice recognition and reading in the remote control or set-top box It is to provide a digital TV voice search system and method using a remote control that can recognize the voice through the remote control and implement the selection and execution of the corresponding content or menu without the voice recognition module of the.

The object of the present invention is a remote control having a microphone for receiving a spoken voice of a user and a voice transmission module for wirelessly transmitting a voice signal input through the microphone to a set-top box; A set-top box which receives a voice signal from a voice transmitting module of the remote controller, processes the voice signal into voice data, and transmits the voice signal to the voice processing server; A voice processing server performing voice recognition on the voice data received from the set top box and transmitting information corresponding to the search word derived by the voice recognition to the set top box; And the set-top box configured to display and provide an image corresponding to the information received from the voice processing server to the TV.

In addition, the object is based on a remote control for receiving a user's spoken voice and wirelessly transmitting a voice signal, and a set-top box for receiving the voice signal from the remote control and processing it into voice data, the voice processing server is the set-top Receiving the voice data from a box; Deriving a search word by performing voice recognition on the received voice data; Extracting information corresponding to a search word derived through the speech recognition; And transmitting the extracted information to the set-top box through a digital TV voice search method using a remote controller.

According to the digital TV voice search system and method using the remote control according to the present invention, since the voice search function can be implemented without mounting an expensive voice recognition module in the set-top box and the remote control necessary for providing a digital TV service, the set-top box or the remote control It is possible to limit the increase in the cost, and accordingly, there is an excellent effect of activating the digital TV service to which the voice input method is applied out of the conventional keypad type remote controller.

1 is a block diagram of a digital TV voice search system using a remote control according to the present invention.
2 (a) and (b) are block diagrams showing the detailed configuration of the speech recognition means and data storage of the speech processing server according to the present invention;
3 is a flowchart illustrating a process of processing a digital TV voice search system using a remote controller according to the present invention.
Figure 4 is an example of the output screen by the digital TV voice search using a remote control according to the present invention.

In the present invention, the remote controller or the set-top box is used to search and execute digital TV content (or menu, etc.) without recognizing the voice through a remote controller without expensive voice recognition module for voice recognition and reading. Disclosed are technical features capable of implementing selection and execution of content to menus.

In the following, preferred embodiments, advantages and features of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a block diagram of a digital TV voice search system using a remote control according to the present invention, Figure 2 (a) and (b) shows the detailed configuration of the voice recognition means and data storage of the speech processing server according to the present invention It is a block diagram.

Digital TV voice search system using a remote control according to the present invention is a voice processing server 40 connected to the set-top box, a set-top box 30 for receiving / converting a terrestrial or cable broadcast video signal, and the set-top box 30 It is configured to include a digital TV system including a TV (10) for receiving a video signal from the display on the screen.

The TV 10 of the present invention is a conventional display device connected to the set top box 30 to visually and audibly display various multimedia and information screens through the relay of the set top box.

The remote controller 20 of the present invention controls the on / off of the set-top box 30 and / or the TV 10, and desired among various multimedia contents provided by a terrestrial wave, a cable, or an IPTV server. A device for remotely selecting contents, in particular, is configured to enable a user to search and execute a desired content by a voice input method through interworking with a set-top box and a voice processing server.

The remote controller 20 includes an operation button 21, a voice input unit 22, a voice transmitting module 23, and an IR transmitting module 24.

The operation button 21 is a power button for turning on / off the power, a sound button for adjusting the volume, a channel button for selecting a broadcasting channel, and a specific function (for example, a menu, a TV guide, and a portal site, like a normal remote control). And a direction button for instructing the direction of movement of the cursor to select desired content, and the like, in particular, when a user wants to search for desired content by using voice. The apparatus may further include a voice search button for commanding entry into the state.

The voice input unit 22 is a component that generates an electrical signal by receiving a voice spoken by the user, and configures the voice reception to be activated when the remote controller 20 is in the voice search standby state by the user pressing the voice search button. Can be.

The voice input unit 22 may preferably be implemented as a microphone for converting an input voice into an electrical signal.

The voice transmitting module 23 converts the user uttered voice received from the voice input unit 22 into a wireless signal and transmits the converted voice to the set top box 30. That is, when the voice input unit 22 receives the user voice, the voice transmitting module 23 transmits a corresponding voice signal to the set top box 30 through wireless communication.

In this case, the voice transmission module 23 transmits a voice signal to the set-top box 30 through at least one wireless transmission method selected from Bluetooth, Zigbee, RF, and Wi-Fi. It is preferable to employ an RF wireless communication module.

When the user presses the operation button 21 of the desired function, the IR transmission module 24 transmits a signal corresponding to the operation button to the set-top box 30 or the TV 10 using infrared rays.

The set-top box 30 of the present invention is a relay device that receives the signal from the outside and converts it to display its contents on the TV. In particular, the set-top box 30 of the present invention is a remote controller 20 in addition to the function of receiving and converting such video signals. Receives a voice signal from the) and processes it into an appropriate data form, transmits it to the voice processing server 40, and receives a result of recognition processing of the user spoken voice data transmitted to the voice processing server 40. It is characterized in that to perform a function to display the content content appropriate to the TV screen.

In detail, the set-top box 30 processes the voice signal receiving module 35 to receive the voice signal input from the remote controller 20, and processes the received voice signal into an appropriate data form, and sends it to the corresponding voice processing server 40. It is configured to include a memory and voice data transmitter 37 in which an application program 36 for realizing the function of transmitting is installed.

The voice processing server 40 of the present invention basically corresponds to a server that performs only a function of receiving voice data transmitted from the set-top box 30 through network IP communication and parsing it and sending it back to the set-top box 30. In addition, the case of including a normal IPTV server function is not excluded.

If the IPTV server function is also included, the server may provide a database management for the multimedia content, initial portal page information, and transmission of the requested multimedia content to the set-top box 30 like a server providing a general IPTV service.

The most essential feature of the voice processing server 40 of the present invention is a function of analyzing the voice data sent from the set-top box 30 by using a voice recognition means and transmitting the result of the recognition processing of the corresponding voice data to the set-top box 30. To be configured.

Here, the recognition processing result of the voice data transmitted to the set-top box 30 is information corresponding to the search word derived by the voice recognition, and the information corresponding to the search word is the search word itself extracted from the corresponding voice (ie, text data). May be).

Alternatively, when the voice processing server 40 includes the IPTV server function, the information corresponding to the search word may be content data corresponding to the extracted search word, or a URL and streaming information on content corresponding to the extracted search word. Can be.

Specifically, the voice processing server 40 includes a data transmitter / receiver 41, a voice recognition means 42, and a data storage 43.

The data storage unit 43 basically includes a search word database 47 that stores a word corresponding to a voice recognition target search word in a preset voice dictionary form.

On the other hand, if the voice processing server 40 is configured to include an IPTV server function, the data storage unit 43 may further include a content database 46 for storing a variety of multimedia content.

The data receiver receives voice data from the set-top box 30, and the data transmitter functions to transmit the voice data recognition processing result processed by the voice recognition unit 42 to the set-top box 30.

The speech recognition unit 44 performs speech recognition on the speech data received from the set-top box 30. At this time, the speech recognition unit 44 searches the search term database based on the pronunciation and accent of the spoken speech and quickly extracts a matching word. The voice can be recognized and the voice data recognition processing result can be transmitted to the set-top box 30.

In a preferred embodiment, the voice recognition unit 44 estimates words that are close to each word of the input voice from among words stored in the search word database when the voice data is received from the set-top box 30, and has a known voice. By using a recognition algorithm, a matching index between each word of the input voice and the estimated words may be calculated to extract a search word most suitable for the spoken voice.

The request search processor 45 is a component that allows the set-top box 30 to transmit the result of the voice data recognition processing based on the search word derived through the voice recognition unit 44.

For example, if the voice data recognition processing result to be transmitted to the set-top box 30 is the search word itself derived through parsing, the text information corresponding to the search word may be transmitted to the set-top box 30 through the data transmitter 41. do.

Alternatively, if the voice data recognition processing result to be transmitted to the set-top box 30 is content data including video and / or sound information, the request search processing unit 45 corresponds to a search word derived through the voice recognition unit 44. By searching and extracting the content data to be retrieved from the content database, the user who commanded the voice search is processed to transmit the desired content data to the set-top box 30 through the data transmitter 41.

Alternatively, the request search processing unit 45 searches for and extracts the URL and streaming information of the content corresponding to the extracted search word and transmits it to the set-top box 30, so that the set-top box 30 receives the By using the information, the user who commands the voice search can display the desired content image on the TV.

3 is a flowchart illustrating a process of processing a digital TV voice search system using a remote controller according to the present invention, and FIG. 4 is an example of an output screen by digital TV voice search using a remote controller according to the present invention.

Referring to Figures 3 and 4, the digital TV voice search process using the remote control of the present invention with reference to a specific example as follows.

Suppose a user wants to select and watch a movie 'Titanic' by voice search. In this case, the user clicks the voice search button on the remote control 20 while the VOD_Latest Movie Screen 11 displaying the list of movies including 'Titanic' is displayed on the TV 10 as shown in FIG. After activating the voice search function of the remote controller 20, the voice of 'Titanic 15' is uttered (S10).

The voice spoken by the user is input through the microphone of the remote controller 20, and the input voice signal is converted into a wireless signal through the voice transmission module 23 and then transmitted to the set top box 30 (S20).

The set-top box 30 receiving a specific voice signal from the remote controller 20 processes the received voice signal into an appropriate data form and transmits it to the voice processing server 40 associated with the corresponding set-top box 30 (S30). .

The voice processing server 40 receiving the voice data sent from the set-top box 30 transmits the voice data recognition processing result derived through the voice recognition process S40 to the set-top box 30, more specifically. Looking at it as follows.

First, the speech recognition unit 44 searches a search word database based on pronunciations and accents recorded in the voice data, and derives a search word most suitable for the user's speech using a speech recognition algorithm.

Then, the request search processing unit 45 processes the derived search word, extracts the voice data recognition processing result corresponding thereto, and sends it to the set-top box 30 (S41).

Here, if the voice data recognition processing result to be sent to the set-top box 30 is the search word itself derived through parsing, the text information corresponding to the search word may be transmitted to the set-top box 30 through the data transmitter 41. do.

Alternatively, if the voice processing server 40 is configured to include an IPTV server function and the voice data recognition processing result to be transmitted to the set-top box 30 is content data including video and / or sound information, the request search processing unit ( 45 searches for a content database and extracts content data corresponding to a search word derived through the voice recognition unit 44, thereby extracting the content data desired by the user who commanded the voice search through the data transmitter 41. 30).

Alternatively, if the voice data recognition processing result to be transmitted to the set-top box 30 is a URL and streaming information for playing the movie, the request search processing unit 45 performs a URL and streaming on content corresponding to the extracted search word. (Streaming) information is retrieved and transmitted to the set-top box (30).

After receiving the voice data recognition processing result from the voice processing server 40, the set-top box 30 performs a process for displaying an image corresponding to the voice data recognition processing result, and then the user is ready to play the VOD 'Titanic'. Inform that the completion, and wait for the final decision from the user (S50).

When the user finally gives a playback command through the remote controller (20) (S60), the remote controller 20 transmits a corresponding signal (playback start signal) to the set-top box 30 (S61), whereby the set-top box 30 Play the VOD and display it on the TV screen (S70).

In the above description, a method of selecting and playing multimedia content through voice search has been described and illustrated as an example. However, the digital TV sets such as menu selection, specific command input, and channel switching as well as selection of multimedia content through the same process. It will be apparent to those skilled in the art that a command for executing various functions can be implemented by a voice input method.

By the above configuration and method, it is possible to minimize the increase in the cost of the bar set-top box or the remote control, which can implement the voice search function without mounting the expensive voice recognition module in the set-top box or the remote control, and thus only the keypad method. By moving away from the remote control, it is possible to activate digital TV service with voice input method.

While the preferred embodiments of the present invention have been described and illustrated above using specific terms, such terms are used only for the purpose of clarifying the invention, and it is to be understood that the embodiment It will be obvious that various changes and modifications can be made without departing from the spirit and scope of the invention. Such modified embodiments should not be understood individually from the spirit and scope of the present invention, but should be regarded as being within the scope of the claims of the present invention.

10: TV 20: remote control
21: operation button 22: voice input unit
23: voice transmission module 30: set-top box
35: voice signal receiving module 37: voice data transmitter
40: voice processing server 41: data transmission and reception unit
42: voice recognition means 43: data storage unit

Claims (5)

In a digital TV system comprising a set-top box for receiving / converting a video signal, a voice processing server connected to the set-top box and a TV for receiving a signal from the set-top box and displaying the signal on a screen,
A remote controller including a microphone for receiving a spoken voice of a user and a voice transmitting module for wirelessly transmitting a voice signal input through the microphone to the set-top box;
The set-top box which receives a voice signal from a voice transmitting module of the remote controller, processes the voice signal into voice data, and transmits the voice signal to the voice processing server;
The voice processing server performing voice recognition on voice data sent from the set-top box and transmitting information corresponding to the search word derived by the voice recognition to the set-top box; And
And a set-top box for displaying and displaying the image corresponding to the information received from the voice processing server on the TV.
A voice processing server that provides a digital TV voice search function based on a remote controller that receives a user's spoken voice and wirelessly transmits a voice signal, and a set-top box that receives the voice signal from the remote controller and processes the voice signal into voice data.
A data receiver configured to receive the voice data from the set top box;
A search word database that stores a word corresponding to a voice recognition target search word in a preset voice dictionary form;
A speech recognition unit configured to derive a search word by performing speech recognition on the received speech data using the search word database;
A request search processor for extracting information corresponding to the search word derived through the voice recognition unit; And
And a data transmitter to transmit the extracted information to the set-top box.
3. The method according to claim 1 or 2,
The information may be at least one selected from among contents data corresponding to the search word, URLs and streaming information for contents corresponding to the search word, and text data for the search word itself. Voice search system.
Based on a remote controller that receives a user's spoken voice and wirelessly transmits a voice signal, and a set-top box that receives the voice signal from the remote controller and processes the voice signal into voice data, the voice processing server provides a digital TV voice search function. As a method,
The voice processing server,
Receiving the voice data from the set top box;
Deriving a search word by performing voice recognition on the received voice data;
Extracting information corresponding to a search word derived through the speech recognition; And
Digital TV voice search method using a remote control comprising the step of transmitting the extracted information to the set-top box.
5. The method of claim 4,
The voice processing server,
When performing voice recognition on the received voice data, the digital TV using the remote controller may be used to derive the search word using a search word database that stores a word corresponding to a voice recognition target search word in a preset voice dictionary form. Voice search method.
KR1020120058134A 2012-05-31 2012-05-31 System and method for digital television voice search using remote control KR20130134545A (en)

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