KR20110020579A - Method for receiving contents, method for transmitting contents, and multimedia apparatus applying the same - Google Patents

Abstract

PURPOSE: A content receiving method, content transmitting method, and a multimedia device applying the same are provided to transmit information of a user to an external device and receive content corresponding to information of a user from the external device, thereby enabling a user to easily receive desired content from other person. CONSTITUTION: Information of a user is received form an external device(S315). A face picture of a user corresponding to information of the user is searched from an address book. In a face picuter of a searched user, the face feature data of the user is extracted. Based on face feature data, video contents or picture content including the face of the user are searched. A list of content corresponding to user information is transmitted(S325). The content selection information is received form the external device(S355).

Description

A method for receiving content, a method for transmitting content, and a multimedia apparatus applying the same {Method for receiving contents, method for transmitting contents, and multimedia apparatus applying the same}

The present invention relates to a content receiving method, a content transmitting method, and a multimedia device applying the same. More particularly, the present invention relates to a content receiving method for receiving content related to a user from an external device, a content transmitting method, and a multimedia device applying the same.

Recently, digital cameras for storing pictures taken in the form of digital data are rapidly spreading. Digital cameras have been used by many users because of their convenience, as well as being able to check immediately after taking a picture, and store the picture data in the form of a computer file.

In addition, photos taken with digital cameras can be shared with various people by copying photo files to others or sending them via e-mail.

However, in order to receive a picture file taken by another person's digital camera, the user must connect another person's digital camera to a computer and copy the picture files taken by the computer. As such, there is an inconvenience of having to go through a very complicated procedure in order to receive a picture taken by another person's digital camera.

In addition, the user must check the currently stored pictures in order to find a picture taken among the pictures. Therefore, in order to find a picture taken by the user, it is inconvenient to check a list of stored pictures and select and download or copy a desired picture.

The user wants to be able to obtain the desired content more easily. Accordingly, there is a demand for a method for easily receiving a desired content from another user by using a multimedia device.

The present invention has been made to solve the above problems, an object of the present invention, the content receiving method for transmitting the user's information to the external device, and receives the content corresponding to the user's information from the external device and The present invention provides an applied multimedia device.

Another object of the present invention is to provide a content transmission method for receiving user information from an external device, retrieve content corresponding to the received user information, and transmit the retrieved content to the external device, and a multimedia device using the same. Is in.

According to an aspect of the present invention, there is provided a method of receiving a content of a multimedia device communicatively connected to an external device, the method comprising: transmitting user information to the external device; And receiving content corresponding to the information of the user from the external device.

The content corresponding to the user's information may be photo content or video content including the user's face.

The information of the user may include at least one of the user ID, a user name, a phone number, an e-mail address, a picture of the user, and facial feature data.

The information of the user may be information of a user registered as a user of the multimedia apparatus.

On the other hand, according to an embodiment of the present invention, a method for transmitting content of a multimedia device communicatively connected to an external device, the method comprising: receiving user information from the external device; Searching for content corresponding to the received user information; And transmitting the retrieved content to the external device.

The searching may include searching for photo content or video content including the face of the external device user by referring to the user information.

The searching may include: searching a face picture of a user corresponding to the user information in an address book; Extracting facial feature data of the user from the retrieved face photograph of the user; And searching for photo content or video content including the face of the user based on the face feature data.

Transmitting a list of contents corresponding to the user information; The method may further include receiving content selection information from the external device, wherein the content transmission step may transmit content selected by the received content selection information from among contents included in the list to the external device.

On the other hand, according to an embodiment of the present invention, a multimedia device for receiving content from an external device includes a communication unit connected to communicate with the external device; And a controller configured to control the communication unit so that user information is transmitted to the external device and content corresponding to the user information is received from the external device.

The content corresponding to the user's information may be photo content or video content including the user's face.

The information of the user may include at least one of the user ID, a user name, a phone number, an e-mail address, a picture of the user, and facial feature data.

The information of the user may be information of a user registered as a user of the multimedia apparatus.

On the other hand, according to an embodiment of the present invention, a multimedia device for transmitting content to an external device, Communication unit connected to the external device so as to communicate; And a control unit configured to receive information of a user from the external device, search for content corresponding to the received user information, and control the searched content to be transmitted to the external device.

The controller may search for photo content or video content including a face of the external device user by referring to the user information.

The controller may search for a face picture of the user corresponding to the user information in an address book, extract the face feature data of the user from the searched face picture of the user, and based on the face feature data. The included photo content or video content may be searched for.

The controller generates a list of contents corresponding to the user information and transmits the list to the external device, receives content selection information from the external device, and selects the received content from the contents included in the list. Contents selected by the information may be controlled to be transmitted to the external device.

According to various embodiments of the present disclosure, a content receiving method for transmitting user information to the external device and receiving content corresponding to the user information from an external device and a multimedia device applying the same may be provided. It is possible to easily receive the desired content from others using the multimedia device.

In particular, since the multimedia device receives the content by transmitting the user's information, the user can collectively download the pictures including their face.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a block diagram showing in detail the configuration of a multimedia device 100 according to an embodiment of the present invention. As shown in FIG. 1, the multimedia apparatus 100 includes a lens unit 110, an imaging device 120, an image processing unit 130, a control unit 140, an operation unit 150, an image output unit 160, a display ( 170, a codec 180, a storage 190, and a communication unit 195.

The lens unit 110 collects the light of the subject to form an optical image in the imaging area.

The imaging device 120 photoelectrically converts light incident through the lens into an electric signal, and performs predetermined signal processing on the electric signal. The imaging device 120 performing the above function includes a pixel and an AD converter. Each pixel outputs an analog video signal, and the AD converter converts the video signal into a digital video signal.

The image processor 130 performs signal processing on an image input from the image pickup device 120, and transmits the processed image signal to the image output unit 160 to display the captured image. In addition, the image processor 130 outputs an image signal processed by the codec 180 to store the captured image.

In detail, the image processor 130 may use digital zoom, AWB (Auto White Balance), AF (Auto Focus), AE (Auto Exposure) to adjust the format conversion and the image scale with respect to the image signal output from the imaging device 120. And so on.

In addition, the image processor 130 performs a face recognition function on the captured image. In detail, the image processor 130 performs a process of detecting a face in the captured image and a process of recognizing feature data of the face in order to perform a face recognition function. The process of detecting a face is a process of detecting an area including a face in the captured image. The process of recognizing the feature data of the face is a process of recognizing the feature of the face to distinguish it from other faces.

The face detection process is performed through color-based face region detection, edge-based eye region detection, face region normalization, and SVM (Support Vector Machine) based face region verification.

Color-based face region detection is a process of detecting a face in an input image using skin color information of the face. In detail, the color-based face region detection generates a flesh color filter using YCbCr information of the input image to extract the face region. That is, color-based face region detection is a process of extracting only the skin part from the input image.

Next, edge-based eye region detection is a process of detecting eye regions using contrast information. In general, the eye area can be easily separated, but there is a possibility that an error may occur due to various hairstyles of women or glasses.

Thereafter, the detected eyes are used to normalize the face area. Then, the normalized face region is verified by using a support vector machine (SVM). Using the SVM face area verifier reduces the likelihood of detecting false face areas to less than 1%.

Through this process, the image processor 130 detects a face from the captured image.

On the other hand, the process of recognizing facial feature data is largely a holistic approach and an analytic approach.

The overall approach is to recognize the face in consideration of the characteristics of the entire area of the face pattern. Such methods include an eigenface method, a template matching-based method, and the like.

The analytical approach is to extract facial features to recognize faces. The analytical approach has the advantage of requiring fast recognition speed and low memory, but it is difficult to select and extract facial features.

Recognition of facial feature data proceeds through the following steps. The image processor 130 receives an image including a face. The image processor 130 extracts components of the face (eg, eyes, nose, mouth, etc.). Next, the image processor 130 corrects the case in which the face is rotated and the illumination is illuminated. Through this process, the image processor 130 extracts the features of the face included in the captured image. Through this process, the image processor 130 may detect a face of a person in the captured image.

As a result, the image processor 130 may detect the overall pattern of the face in the captured image and recognize the facial feature data included in the captured image by using the detected face pattern. Through this process, the image processor 130 provides a face recognition function.

In addition, the image processor 130 receives and processes an image of content stored in the storage 190 through the codec 180. The image of the processed content is output to the image output unit 160.

The image output unit 160 outputs the image signal received from the image processor 130 to the internal display 170 or the external output terminal.

The display 170 displays a captured image or an image of content stored in the storage 190 on the screen.

The codec 180 encodes an image signal received by the image processor 130. The codec 130 transmits the encoded video signal to the storage 190. In addition, the codec 180 decodes the encoded video signal of the content stored in the storage 190. The codec 180 transmits the decoded image signal to the image processor 130.

That is, the codec 180 encodes when storing the captured image, and decodes when outputting the stored content image to the image processor 130.

The storage 190 stores various multimedia contents. In detail, the storage 190 stores photo content, video content, music content, document content, and the like. Such content may be content directly photographed by the multimedia device 100 or content downloaded from an external device.

In addition, the storage unit 190 stores the image photographed by the imaging device 120 in a compressed form. In addition, the storage unit 190 stores an address book. Here, the address book refers to a database that records contact information for people who the user desires. The address book includes at least one of a person's name, address, email address, and phone number. In addition, the address book is stored with a picture corresponding to each person.

In addition, the storage 190 stores the device information and the device user information in a state in which they correspond to each other. Here, the device information is information representing information unique to the device. The device information may include at least one of a device ID, an IP address, a MAC address, and a serial number. The user information is information representing unique information of the user. The user information may include a user ID, a user name, a phone number, an email address, a picture of the user, facial feature data, and the like.

The storage unit 190 may be implemented using a flash memory, a hard disk, a DVD, or the like.

The manipulation unit 150 receives a command through a user's manipulation. The operation unit 150 may be provided in the form of a button on the surface of the multimedia device 100, or may be provided in the form of a touch screen on the display 170.

The communication unit 195 is connected to communicate with an external device through various networks such as the Internet. The communication unit 195 may be connected to an external device using a wired network such as a wired LAN, or may be connected to an external device using a wireless network such as a wireless LAN or Bluetooth.

In addition, the communicator 195 may receive multimedia content files from external devices.

The controller 140 controls the overall operation of the multimedia apparatus 100. In detail, when the multimedia apparatus 100 operates as a content receiving end, the controller 140 controls user information and device information to be transmitted to an external device and receives a picture or video corresponding to the user information from an external device.

In detail, the controller 140 controls the device information and the user information to be transmitted to the external device. Here, the device information is information representing information unique to the device. The device information may include at least one of a device ID, an IP address, a MAC address, and a serial number. The user information is information representing unique information of the user. The user information may include a user ID, a user name, a phone number, an email address, a picture of the user, facial feature data, and the like.

The controller 140 controls the content list to be received from an external device. In addition, the controller 140 controls the received content list to be displayed on the screen.

The controller 140 selects download target content according to a user's manipulation. The controller 140 transmits a download request to the external device together with the content selection information. Here, the content selection information indicates information on content selected by the user among the contents included in the content list. The content selection information is information including a title, a unique number, and the like of the selected content.

The controller 140 controls the selected content to be received from an external device.

On the other hand, when the multimedia device 100 functions as a transmitter for transmitting content to an external device, the controller 140 performs the following functions.

The controller 140 controls the device information and the user information to be received from the external device. The controller 140 recognizes the type and characteristic of the external device by using the device ID and the serial number of the device information. In addition, the control unit 140 makes settings related to communication with an external device using the IP address and the MAC address of the device information.

The controller 140 searches for content corresponding to user information of an external device among contents stored in the storage 190. In detail, the controller 140 extracts facial feature data of the user based on the received user information of the external device.

The facial feature data may be included in the user information, or may be extracted using a picture of the user and a face recognition function included in the user information. In addition, the facial feature data may be extracted from the picture of the user included in the address book stored in the storage 190. In detail, the controller 140 searches whether the user of the external device is included in the address book stored in the storage 190 based on the information of the user of the external device. When it is found that the user includes the user of the external device in the address book, the controller 140 may extract the facial feature data of the user of the external device using the picture of the user included in the address book stored in the storage 190.

The controller 140 searches for photo content and video content including the face of the user of the external device among the stored contents by using the facial feature data and the face recognition function of the external device user. Thereafter, the controller 140 transmits the list of searched contents to the external device.

In addition, the controller 140 receives a download request together with content selection information from an external device. In addition, the controller 140 transmits the selected content to the external device.

As such, the controller 140 may function differently depending on whether the multimedia apparatus 100 transmits or receives content.

As described above, the multimedia apparatus 100 receives content corresponding to user information from an external device. Therefore, the user can easily download a picture or video including his face from an external device using the multimedia device 100.

2 is a diagram illustrating a system in which the multimedia apparatus 100 receives content through an external multimedia apparatus 200, a PC 260, and the Internet 270, according to an exemplary embodiment. Here, the external multimedia device 200 has a similar configuration and function as the multimedia device 100 of FIG. 1.

The multimedia device 100 transmits its own device information and user information to the external multimedia device 200, the PC 260, and the Internet 270. Then, the external multimedia apparatus 200, the PC 260, and the Internet 270 search for photo content and video content including the face of the user based on the user information, and the searched photo content and video content to the multimedia device. to provide.

In detail, the external multimedia apparatus 200, the PC 260, and the Internet 270 extract facial feature data of the user based on the received user information of the multimedia apparatus 100. The facial feature data may be included in the user information, or may be extracted using a picture of the user and a face recognition function included in the user information.

In addition, the external multimedia apparatus 200, the PC 260, and the Internet 270 may determine whether the corresponding user is included in the stored address book based on the information of the user of the multimedia apparatus 100. In addition, the external multimedia apparatus 200, the PC 260, and the Internet 270 may extract facial feature data of the user of the multimedia apparatus 100 using a photo included in the stored address book.

The external multimedia apparatus 200, the PC 260, and the Internet 270 search for photo content and video content including the user's face by using facial feature data of the user of the multimedia apparatus 100. The external multimedia apparatus 200, the PC 260, and the Internet 270 transmit a list of searched contents and the searched contents to the multimedia apparatus 100.

As such, the multimedia apparatus 100 may transmit the device information and the user information to collectively download the photo content and the video content including the user's face.

Hereinafter, an operation of the multimedia apparatus 100 and the external multimedia apparatus 200 will be described in detail with reference to FIG. 3. 3 is a flowchart provided to explain operations of the multimedia apparatus 100 and the external multimedia apparatus 200 according to an embodiment of the present invention.

First, the multimedia device 100 transmits device information and user information to the external multimedia device 200 (S310). Here, the device information is information representing information unique to the device. The device information may include at least one of a device ID, an IP address, a MAC address, and a serial number. The user information is information representing unique information of the user. The user information may include a user ID, a user name, a phone number, an email address, a picture of the user, facial feature data, and the like.

Then, the external multimedia device 200 receives the device information and the user information of the multimedia device 100 (S315). The external multimedia apparatus 200 recognizes the type and characteristics of the multimedia apparatus 100 using the device ID and the serial number of the device information. In addition, the external multimedia apparatus 200 may configure settings related to communication of the multimedia apparatus 100 using an IP address and a MAC address of the device information.

The external multimedia apparatus 200 searches for content corresponding to user information of the multimedia apparatus 100 (S320). In detail, the external multimedia apparatus 200 extracts facial feature data of the user based on the received user information of the multimedia apparatus 100.

The facial feature data may be included in the user information, or may be extracted using a picture of the user and a face recognition function included in the user information. In addition, the facial feature data may be extracted from a picture of a user included in an address book stored in the external multimedia apparatus 200. In detail, the external multimedia apparatus 200 searches whether the user of the multimedia apparatus 100 is included in the stored address book based on the information of the user of the multimedia apparatus 100. If it is found that the user includes the user of the multimedia apparatus 100 in the address book, the external multimedia apparatus 200 may extract the facial feature data of the user of the multimedia apparatus 100 using the picture of the user included in the stored address book. .

The external multimedia apparatus 200 searches for photo content and video content including the face of the user of the multimedia apparatus 100 among the stored contents by using the facial feature data and the face recognition function of the user of the multimedia apparatus 100. do.

Thereafter, the external multimedia device 200 transmits the list of found contents to the multimedia device 100 (S325). Then, the multimedia apparatus 100 receives a content list from the external multimedia apparatus 200 (S330).

The multimedia apparatus 100 displays a list of contents received on the screen. The multimedia apparatus 100 selects the download target content according to the user's operation (S335). The multimedia apparatus 100 transmits the download request to the external multimedia apparatus together with the content selection information (S340). Here, the content selection information indicates information on content selected by the user among the contents included in the content list. The content selection information is information including a title, a unique number, and the like of the selected content.

Then, the external multimedia device 200 receives a download request together with content selection information from the multimedia device 100 (S345). The external multimedia device 200 transmits the selected content to the multimedia device 100 (S350). Then, the multimedia device 100 receives the selected content from the external multimedia device 200 (S355).

Through such a process, the multimedia apparatus 100 receives content corresponding to user information from the external multimedia apparatus 200. Accordingly, the user can easily download a picture or video including his or her face from the external multimedia device 200 using the multimedia device 100.

Meanwhile, although the present embodiment has been described as receiving content including the face of the user of the multimedia device 100, it may be implemented to receive content including the face of another person.

In this case, the multimedia apparatus 100 transmits the specific portrait selected by the user to the external multimedia apparatus 200. Then, the external multimedia apparatus 200 extracts facial feature data from the received specific person photo and searches for photo content and video content including the face of the specific person among the stored contents. In addition, the external multimedia device 200 transmits the photo content and the video content of the searched specific person to the multimedia device 100. Accordingly, the multimedia apparatus 100 may receive content including the face of a specific person other than the user from the external multimedia apparatus 200.

Meanwhile, in the present exemplary embodiment, the multimedia device 100 receives content from the external multimedia device 200. However, in addition to the above, any multimedia device 100 may receive content from any device that is capable of face recognition and stores multimedia content. Of course it can. For example, the external device may be an external PC or a device connected through the Internet.

Hereinafter, an actual operation screen of the multimedia apparatus 100 will be described. 4A is a diagram illustrating a menu screen for receiving content from the DSC 400 which is an external multimedia device 200 according to an embodiment of the present invention. 4B is a diagram illustrating a screen on which a list of photos including a user's face is displayed according to an embodiment of the present invention.

As shown in FIG. 4A, the multimedia apparatus 100 displays a menu 410 for receiving content from a digital still camera (DSC) 400 on a screen. The menu 410 includes items for viewing recommended photos in DSC, saving recommended photos in DSC, viewing recommended videos in DSC, and saving recommended videos in DSC. Such items are for receiving a command for displaying and downloading a picture or a video including a face of a user of the multimedia apparatus 100 among contents stored in the DSC 400.

As shown in FIG. 4A, when the user selects 'view recommended photos in the DSC' in the menu 410, the multimedia apparatus 100 receives a list of photo contents including the user's face from the DSC 400. Done. As shown in FIG. 4B, the multimedia apparatus 100 displays a list of photos including the user's face on the screen.

4B, when the user selects a desired picture from the list of pictures, the multimedia apparatus 100 downloads the selected picture from the DSC 400. As shown in the list of pictures shown in FIG. 4B, it can be seen that the user's face 450 is included in all pictures.

5A is a diagram illustrating a screen displaying a menu 510 for receiving content from a PC 500 corresponding to an external multimedia device 200 according to an embodiment of the present invention. 5B is a diagram illustrating a screen displaying a list of photos including a user's face according to an embodiment of the present invention.

As shown in FIG. 5A, the multimedia apparatus 100 displays a menu 510 (ie, a photo sharing service menu) for receiving content from the PC 500 on the screen. The menu 510 includes items for uploading photos, viewing a photo album of friends, and viewing recommended photos. Here, the recommended picture viewing item is for receiving a command for displaying a list of pictures including the face of the user of the multimedia apparatus 100 among the contents stored in the PC 500.

As shown in FIG. 5A, when the user selects 'view recommended photo' in the menu 510, the multimedia apparatus 100 receives a list of photo contents including the user's face from the PC 500. 5B, the multimedia apparatus 100 displays a list of photos including the user's face on the screen.

5B, when the user selects a desired picture from the list of pictures, the multimedia apparatus 100 downloads the selected picture from the PC 500. As can be seen from the list of pictures shown in FIG. 5B, it can be seen that the user's face 550 is included in all pictures.

As such, the multimedia apparatus 100 may collectively receive photos including the face of the user from external multimedia apparatuses. Therefore, the user can easily download a picture including his or her face from the external multimedia device 200 through a very simple operation using the multimedia device 100.

Hereinafter, a process of registering a face picture of a user in the multimedia device 100 will be described with reference to FIGS. 6A to 6H. 6A to 6H illustrate a process of registering a user's photo on the multimedia apparatus 100 using face recognition technology according to an embodiment of the present invention.

As shown in FIG. 6A, the multimedia apparatus 100 displays a main menu on a screen. In this state, when the user touches the setting icon 600, the multimedia apparatus 100 receives a selection command of the setting icon 600, and displays the setting menu on the screen.

6B is a diagram illustrating a screen on which a setting menu is displayed. As shown in FIG. 6B, when the user selects the item "Register My Information" in the setting menu, the multimedia apparatus 100 receives a selection command for the item "Register My Information".

Therefore, as shown in Fig. 6C, it is displayed on the My Information registration screen. Here, when the user enters a name and an e-mail and selects a photo registration button 610, the multimedia apparatus 100 performs a photo registration process. Here, the photo registration process refers to a process of registering a user's photo in the user information of the multimedia apparatus 100.

Therefore, when the user selects the picture registration button 610, the multimedia device 100 displays a picture list on the screen as shown in FIG. 5D. As shown in FIG. 6D, when the user touches a desired picture in the picture list, the multimedia apparatus 100 receives a selection command for the touched picture. Accordingly, as shown in FIG. 6E, the multimedia apparatus 100 displays the selected picture in full screen.

In addition, as shown in FIG. 6E, if a face is included in the selected picture, the multimedia apparatus 100 recognizes the faces included in the picture and displays an indicator around the face. 6E includes a first face 620 and a second face 630, and a box is displayed around the first face 620 and the second face 630.

As illustrated in FIG. 5E, when the user touches the first face 620, the multimedia apparatus 100 receives a command for selecting the first face 620. Accordingly, the multimedia apparatus 100 separately displays a picture of the selected face part as shown in FIG. 6F. In addition, as shown in FIG. 6F, it can be seen that the save button 640 is displayed together with the picture of the first face 620. Here, the save button 640 serves to receive a command for storing the selected face picture corresponding to the user information of the multimedia apparatus 100.

Therefore, as illustrated in FIG. 6F, when the user touches the storage button 640, the multimedia apparatus 100 stores the first picture 620 to correspond to the user information of the multimedia apparatus 100. Thereafter, as shown in Fig. 6G, a message confirming the storage is displayed on the screen. As shown in FIG. 6H, after the picture registration is completed, the screen returns to the screen on which the setting menu is displayed.

Through such a process, the multimedia apparatus 100 may register a photo so that the photo stored in the multimedia apparatus corresponds to the user information of the multimedia apparatus 100 using the face recognition function.

7A to 7D are diagrams illustrating a process of directly photographing a picture and registering the same with user information of the multimedia apparatus 100 according to an embodiment of the present invention.

After the process of FIGS. 6A to 6C, when the user touches the photographing button 710 as illustrated in FIG. 7A, the multimedia apparatus 100 executes the photographing mode. 7B, when the user photographs the face of a specific person, the multimedia apparatus 100 displays the photographed picture on the screen.

As illustrated in FIG. 7C, the multimedia apparatus 100 displays the photographed picture on the screen and displays a confirmation message on the screen as to whether the picture is stored in correspondence with the selected person in the address book. When the user touches the save button 720, the multimedia apparatus 100 stores the photographed picture so as to correspond to the user information of the multimedia apparatus 100. That is, in FIG. 7C, the multimedia apparatus 100 stores the photographed picture to correspond to "Kim Yu-na". As shown in FIG. 7D, when the storing is completed, the multimedia apparatus 100 displays a message indicating that the storing is completed on the screen.

As described above, the multimedia apparatus 100 may also register a photograph corresponding to the user information of the multimedia apparatus 100 by directly photographing the photograph in addition to the method of selecting the photograph from the photograph list.

In the present embodiment, the multimedia device 100 may be applied to any device as long as the device supports the face recognition function and executes the multimedia content. For example, the multimedia device 100 may be a mobile phone, an MP3 player, a PDA, a notebook computer, or the like.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

1 is a block diagram showing in detail the configuration of a multimedia device according to an embodiment of the present invention;

2 is a diagram illustrating a system in which a multimedia device receives content through an external multimedia device, a PC, and the Internet according to an embodiment of the present invention;

3 is a flowchart provided to explain operations of a multimedia device and an external multimedia device according to an embodiment of the present invention;

4A illustrates a menu screen for receiving content from a DSC, which is an external multimedia device, according to an embodiment of the present invention;

4B is a diagram illustrating a screen displaying a list of photos including a user's face according to one embodiment of the present invention;

5A illustrates a screen displaying a menu for receiving content from a PC corresponding to an external multimedia device according to an embodiment of the present invention;

5B is a diagram illustrating a screen displaying a list of photos including a user's face, according to an embodiment of the present invention;

6A to 6H illustrate a process of registering a user's photo on a multimedia device using face recognition technology according to an embodiment of the present invention.

7A to 7D are diagrams illustrating a process of directly photographing a picture and registering the same with user information of the multimedia apparatus 100 according to an embodiment of the present invention.

Claims (16)

In the method for receiving content of a multimedia device connected to communicate with an external device, Transmitting user information to the external device; And Receiving a content corresponding to the information of the user from the external device; Content receiving method comprising a. The method of claim 1, Content corresponding to the user information, Contents receiving method characterized in that the picture content or video content including the user's face. The method of claim 1, The information of the user, And at least one of the user ID, a user name, a phone number, an e-mail address, a picture of the user, and facial feature data. The method of claim 1, The information of the user, Contents receiving method characterized in that the information of the user registered as a user of the multimedia device. In the method for transmitting content of a multimedia device connected to communicate with an external device, Receiving user information from the external device; Searching for content corresponding to the received user information; And Transmitting the retrieved content to the external device. The method of claim 5, The search step, And searching for photo content or video content including a face of the external device user by referring to the user information. The method of claim 5, The search step, Searching a face picture of a user corresponding to the user information in an address book; Extracting facial feature data of the user from the retrieved face photograph of the user; And And searching for photo content or video content including the face of the user, based on the face feature data. The method of claim 5, Transmitting a list of contents corresponding to the user information; Receiving content selection information from the external device; The content transmission step, And transmitting the contents selected by the received content selection information among the contents included in the list to the external device. In a multimedia device for receiving content from an external device, A communication unit communicatively connected to the external device; And And a controller configured to control the communication unit so that user information is transmitted to the external device and content corresponding to the user information is received from the external device. 10. The method of claim 9, Content corresponding to the user information, Multimedia device, characterized in that the picture or video content including the user's face. 10. The method of claim 9, The information of the user, And at least one of the user ID, a user name, a phone number, an e-mail address, a picture of the user, and facial feature data. 10. The method of claim 9, The information of the user, And information of a user registered as a user of the multimedia device. In a multimedia device for transmitting content to an external device, A communication unit communicatively connected to the external device; And And a control unit configured to receive information of a user from the external device, search for content corresponding to the received user information, and control the searched content to be transmitted to the external device. The method of claim 13, The control unit, The multimedia device, characterized in that for searching the photo content or video content including the face of the user of the external device, with reference to the user information. The method of claim 13, The control unit, Search for a face picture of the user corresponding to the information of the user in an address book, extract the face feature data of the user from the searched face picture of the user, and include photo content including the face of the user based on the face feature data; Multimedia device, characterized in that for searching the video content. The method of claim 13, The control unit, A list of contents corresponding to the information of the user is generated and transmitted to the external device, the content selection information is received from the external device, and the contents selected by the received content selection information are included in the list. Multimedia device characterized in that the control to be transmitted to the external device.

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