JP2006246056A - Apparatus for receiving digital television broadcast - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for receiving digital television broadcast capable of suitably displaying a QR code included in the digital television broadcast. <P>SOLUTION: The apparatus 10 is provided with a receiver body 100 for receiving digital television broadcast and a portable terminal 200 capable of communicating data with the receiver body 100. The receiver body 100 comprised a discrimination/extraction part 160 for discriminating a QR code included in a received digital television signal and extracting the QR code from the digital television signal and a data communication part 180 for transmitting the extracted QR code to the portable terminal 200. The portable terminal 200 comprises a data communication part 210 for receiving the QR code and a display part 220 for displaying the received QR code. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a home or in-vehicle digital television broadcast receiver, and more particularly to extraction and display of two-dimensional code information contained in a digital television signal.

  2. Description of the Related Art A two-dimensional code is used in which information such as letters and numbers is stamped or printed on a surface of an object or paper as a two-dimensional graphic pattern. The two-dimensional code includes a matrix type QR code, a data matrix, a maxi code, and the like, and the stack type includes a PDF417. The QR code includes a minimum of 21 × 21 black and white two-dimensional pattern. As shown in FIG. 8, cutout codes C1, C2, and C3 are included at three locations on the upper left, upper right, and lower left of the two-dimensional pattern P. ing. The cutout code has a regular square frame of 7 cells × 7 cells on the outside and a black square of 3 cells × 3 cells inside the frame, and the cutout code is used for QR code position detection or discrimination. Used for.

  The QR code printed on the surface of an object can be read by a two-dimensional code reader (reading device) incorporating a CCD camera. As the two-dimensional code reader, for example, a mobile phone or a handy type terminal device can be used in addition to a dedicated reader. Such a QR code can encode a large number of characters and numerical information. For example, it encodes the homepage address (URL) of the Internet, the origin and characteristics of the product, etc., and allows them to be read by a mobile phone, thereby simplifying the contents by omitting troublesome data input operations and decoding the code Can be confirmed.

  For example, Patent Document 1 relates to a wireless communication type two-dimensional code reader with low power consumption and an emphasis on a handy function. A slave unit reads a two-dimensional code image and outputs analog data; and analog data is converted into digital data. A transmitter / receiver having a circuit for converting and a transmitter / receiver for transmitting digital data, and a master device for receiving the digital data, an image processing circuit for processing the received digital data, and a processed output from the image processing circuit And a decoder for decoding the digital data and outputting the character data to a computer.

JP-A-11-282946

  Two-dimensional codes represented by QR codes are being used not only in printed materials but in various places. In particular, even in CS digital broadcasting, BS digital method, and terrestrial digital broadcasting, it is possible to superimpose a company home page (URL) or a company product as a two-dimensional code on a television signal in the case of a commercial or the like. However, since the television screen is far from the viewer's position, there is a problem that it is difficult for the viewer to read the two-dimensional code on the television screen accurately by the two-dimensional code reader. Furthermore, in the case of a vehicle-mounted television receiver, there is a problem that the two-dimensional code on the television screen cannot be practically read because the television screen is stopped and only sound is output while the vehicle is traveling.

The present invention has been made to solve the above-described conventional problems, and is a digital television broadcast receiving apparatus and a two-dimensional code for displaying so that a two-dimensional code included in a digital television method can be appropriately read. The purpose is to provide a display method.
A further object of the present invention is to provide a digital television broadcast receiver capable of displaying a two-dimensional code on a portable terminal such as a remote control even if it is a two-dimensional code that is not displayed while the vehicle is running. .

  A digital television broadcast receiver according to the present invention includes a receiver main body for receiving digital television broadcasts and a portable terminal capable of data communication with the receiver main body, and the receiver main body is included in the received digital TV signal. An extraction means for discriminating the dimension code information and extracting the two-dimensional code information from the digital television signal; and a transmission means for transmitting the extracted two-dimensional code information to the portable terminal. Receiving means, and display means capable of displaying two-dimensional code information.

  Furthermore, the display method of the two-dimensional code information in the digital television broadcast receiving apparatus according to the present invention, the step of determining the two-dimensional code information included in the received digital television signal, and extracting the two-dimensional code information from the digital television signal; The method includes a step of transmitting the extracted two-dimensional code information to the portable terminal, and a step of displaying the two-dimensional code information on the display unit on the portable terminal side.

  According to the digital television broadcast receiver according to the present invention, the two-dimensional code information included in the digital television signal is discriminated / extracted, and the extracted two-dimensional code information is transmitted to the mobile terminal, where it can be displayed. The user can accurately read the two-dimensional code displayed on the portable terminal with the two-dimensional code reader. Furthermore, preferably, by providing a memory for storing the two-dimensional code information on the portable terminal side, the two-dimensional stored in the memory even when the television screen of the receiver body is switched or the power of the receiving device is turned off. The code can be displayed at any time. Furthermore, in the case of a vehicle-mounted receiving device, the TV screen is stopped while the vehicle is running, so if the two-dimensional code broadcast during that time is stored in the memory on the mobile terminal side, the two-dimensional code is converted from the sound. The contents of can be confirmed.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is a block diagram showing the configuration of a digital television broadcast receiver according to an embodiment of the present invention. The digital television broadcast receiver 10 includes a receiver main body 100 that receives digital TV broadcasts, a portable terminal 200 that can perform data communication with the receiver main body 100, an antenna 300 that is connected to the receiver main body 100, a speaker 310, a display 320, An operation unit 330 is included.

  The receiver body 100 includes a digital tuner 110 that extracts a signal having a specific frequency in response to the control signal S from the high-frequency digital modulation signal received by the antenna 300, and the digital modulation signal extracted by the digital tuner 110 as an audio signal. A demultiplexer (DEMAX) 120 that separates into a video signal, a decoder 130 that decodes the audio signal and the video signal, a process of converting the decoded audio signal into an analog audio signal, and the like, and audio that is output to the speaker 310 It includes a processing unit 140 and a video processing unit 150 that converts the decoded video signal into an image display format and outputs it to the display 320.

  Further, the receiver main body 100 automatically determines a QR code included in the digital television signal, extracts the QR code, and extracts various programs (for example, to transmit the extracted QR code). Software) and a memory 170 capable of storing data such as extracted QR codes, a data communication unit 180 that enables data communication with the portable terminal 200, and a system control unit 190 that controls each unit. ing.

  The command instruction to the receiver main body 100 can be performed by the operation unit 330 directly connected to the receiver main body 100 or by the portable terminal 200. The portable terminal 200 can transmit and receive data to and from the data communication unit 180 by wireless or wired. The portable terminal 200 is preferably a dedicated remote control attached to the receiver main body 100, but other than this, a general-purpose portable telephone or other portable terminal can be used. When a mobile phone or other portable terminal is used, the data communication unit 180 performs Bluetooth communication or wireless LAN communication standardized by IEEE or the like so as not to impair data communication compatibility depending on the model. It is desirable to have a function to perform.

  FIG. 2A is an external perspective view when the portable terminal is a dedicated remote controller, and FIG. 2B is a block diagram showing its internal configuration. The portable terminal 200 includes a data communication unit 210 that enables transmission and reception of data to and from the receiver main body 100, a display unit 220 that displays characters, graphics, and the like, a key operation unit 230 for inputting commands, data, and programs The memory 240 which can memorize | store etc. and the control part 250 which controls each part are included.

  Next, a QR code display method in the receiving apparatus of this embodiment will be described. First, a digital television broadcast of a desired channel is received by the tuner 110 via the antenna 300. The received digital television signal is separated into an audio signal and a video signal by DEMAX 120, and the audio signal and the video signal are decoded by decoder 120. The audio signal is subjected to D / A conversion and amplification processing by the audio processing unit 140 and is output from the speaker 310 as audio. The video signal is converted into image format data of the frame of the display 320 in the video processing unit 150, and the data is displayed on the display 320.

  Although the above operation is not different from the reception of normal digital television broadcast, in this embodiment, the QR code discriminating / extracting unit 160 further receives image format data from the video processing unit 150, and the QR code is added to the image format data. Is determined to be included, and if it is determined to be included, processing for extracting the QR code is performed. Details of the QR code discrimination / extraction unit 160 will be described later.

  The QR code discrimination / extraction unit 160 supplies the extracted QR code to the system control unit 190. The system control unit 190 primarily stores the QR code in the memory 170, and then stores the stored QR code in the data communication unit 180. To the mobile terminal 200.

  When the mobile terminal 200 receives the QR code via the data communication unit 210, the mobile terminal 200 temporarily stores the QR code in the memory 240. The control unit 250 displays the QR code stored in the memory 240 on the display unit 220. As a display method, for example, when a QR code is received, the QR code may be automatically displayed on the display unit 220, or the QR code is read from the memory 240 in accordance with an instruction from the key operation unit 230, May be displayed on the display unit 220. Alternatively, when a certain amount of QR code is stored in the memory 240, the QR code is sequentially read out and displayed on the display unit 220, or when a certain amount of time is reached by timer management, the QR code is read out from the memory 240 and displayed. 220 may be displayed.

  The user can accurately read the QR code displayed on the display unit 220 of the mobile terminal from a close range using a QR code reader. The QR code superimposes information related to a program (for example, a quiz response destination, a prize application destination, a questionnaire response destination) in a television broadcast program as a QR code, and the user can use this QR code. By reading, complicated data input operation can be omitted. Alternatively, in commercial broadcasting, a URL describing a homepage address or a product can be converted into a QR code.

  As described above, according to the present embodiment, the QR code included in the TV signal is displayed on the display unit 220 of the mobile terminal 200, so that the viewer can be positioned away from the display 320 connected to the receiver body. Even so, the QR code can be accurately read using a QR code reader such as a mobile phone. Even when the TV screen is switched or the power of the receiving apparatus is turned off, the QR code is stored in the memory on the portable terminal side, so that it can be displayed on the display unit 220 when necessary.

  FIG. 3 is a block diagram showing the configuration of the QR code discrimination / extraction unit 160. The QR code determination / extraction unit 160 includes an image capture unit 162 that receives the image format data D from the video processing unit 150, a QR code determination unit 164 that determines a QR code from the image captured by the image capture unit 162, A QR code extracting unit 166 that extracts the determined QR code.

  The image capture unit 162 captures image format data at regular time intervals, and creates monochrome bitmap image data composed of pixels corresponding to the image frame of the display 320. The QR code is a two-dimensional pattern displayed in black and white, and when the QR code is superimposed on the television signal, it is included in this bitmap image data.

  The QR code discriminating unit 164 discriminates in what form black and white dots are gathered in the bitmap image data. For the determination, for example, the bitmap image data is scanned in order in the horizontal direction from the upper left. As shown in FIG. 8, in the QR code, the cutout codes C1, C2, and C3 exist at three places, the upper left, the upper right, and the lower left, and therefore, an area having such a monochrome bit pattern is determined.

  If the cut-out code is found, the QR code version is discriminated next. The distance (number of dots) to the upper left-upper right, upper left-lower left cutout code is obtained, and the version is determined. That is, in the QR code, version 1 is composed of 21 dots vertically and horizontally, version 2 is composed of 25 dots vertically and horizontally, and increases by 4 dots as the version increases by one.

  When the QR code is determined by the QR code determination unit 164, the QR code extraction unit 166 next takes a two-dimensional pattern of the QR code. Since the QR code area can be discriminated, the image portion of the QR code is extracted from the bitmap image.

  Next, another display example of the QR code will be described. The receiver main body 100 extracts QR codes included in the television signal and sequentially transmits them to the mobile terminal 200. In response to this, QR codes are sequentially stored in the memory 240 on the mobile terminal side. In such a case, in order to facilitate the display of the QR code, the control unit 250 creates a management table as shown in FIG. The management table includes a time when the QR code is received, channel information including the QR code, and an address storing the QR code. Note that the channel information is transmitted from the system control unit 190 together with the QR code.

  Based on the management table, the control unit 250 displays a list (list) of received QR codes as shown in FIG. The list includes QR code reception time and channel information, and is scrolled by operating the key operation unit 230. When the user selects an item related to a desired QR code from the list via the key operation unit 230, the control unit 250 reads out the corresponding QR code in response to the selection and displays it on the display unit 220. . For example, when the user selects the number “1” from the list display illustrated in FIG. 5, the control unit 250 refers to the management table, reads the QR code from add # 01, and causes the display unit 220 to display the QR code. By performing such list display, it is possible to easily select and display a desired QR code from among a large amount of accumulated QR codes.

  Still another display example will be described. The receiver main body 100 may store the QR code extracted by the QR code determination / extraction unit 160 in the memory 170. In this case, the system control unit 190 creates a management table as shown in FIG. 4 in the memory 170 and transmits information of the management table to the mobile terminal 200 via the data communication unit 180.

  Based on the received management table, the control unit 250 on the portable terminal side displays a list regarding QR codes on the display unit 220 in the same manner as described above (see FIG. 5). When the user selects a desired QR code, the control unit 250 requests the system control unit 190 to transmit the corresponding QR code via the data communication unit 210. In response to this, the system control unit 190 reads the QR code from the memory 170 and transmits the QR code to the mobile terminal 200. The control unit 250 displays the received QR code on the display unit 220.

  By such a display method, only the QR code that is of interest to the user is transmitted to the mobile terminal side, so it is possible to save the trouble of transmitting an unnecessary QR code and at the same time to reduce the capacity of the memory 240 on the mobile terminal side. Can do.

  Next, a second embodiment of the present invention will be described. In the second embodiment, as shown in FIG. 6, the mobile terminal 202 includes a code decrypting unit 260 for decrypting the QR code. In addition to displaying the QR code on the display unit 220, the control unit 250 causes the display unit 220 to display information such as characters or numbers decoded by the code decoding unit 260. For example, when the user presses the “conversion button” of the key operation unit 230 from the state where the QR code is displayed on the display unit 220, the decoding result of the QR code can be displayed. Thereby, the QR code decoding result can be displayed on the portable terminal 200 without using a QR code reader.

  Next, a third embodiment of the present invention will be described. FIG. 7 is a diagram showing the configuration of the in-vehicle digital television broadcast receiver. As shown in the figure, the receiving device 12 includes a receiver main body 100, a portable terminal 200, and a vehicle information supply unit 400 that provides information on the vehicle state. The vehicle information supply unit 400 supplies vehicle information indicating whether or not the vehicle is running, for example, parking on / off information or vehicle speed information.

  When the system control unit 190 determines that the vehicle is running in response to the vehicle information, the system control unit 190 stops the video output to the display 320 according to safety rules. Therefore, only the audio signal is output as sound from the speaker 310. During the period in which the video output is stopped, the system control unit 190 stores the QR code extracted by the QR code determination / extraction unit 160 in the memory 170 and transmits the stored QR code to the mobile terminal 200. Transmission may be performed at any time or in response to an instruction from the mobile terminal. As a result, the driver or passenger can display the QR code on the portable terminal in real time or when desired, and read the QR code with the QR code reader. If the code decoding unit is provided as in the second embodiment, the decoded character or number information can be displayed.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments according to the present invention, and various modifications can be made within the scope of the gist of the present invention described in the claims. Deformation / change is possible.

  In the above-described embodiment, the QR code has been described as an example, but the same display can be performed using other two-dimensional codes.

  The digital television broadcast receiving apparatus according to the present invention can be widely used for in-vehicle use, portable use, home use, and the like.

It is a block diagram which shows the structure of the digital television broadcast receiver which concerns on the Example of this invention. FIG. 2A is a perspective view showing the external configuration of the mobile terminal, and FIG. 2B is a block diagram showing the internal configuration. It is a block diagram which shows the structure of a QR code discrimination | determination / extraction part. It is a figure explaining the management table of the memory by the side of a portable terminal. It is a figure which shows the example which performs a list display on a portable terminal. It is a figure which shows the structure of the portable terminal which concerns on a 2nd Example. It is a figure which shows the structure of the vehicle-mounted digital television broadcast receiver which concerns on a 3rd Example. It is a figure which shows the cutout pattern of QR Code.

Explanation of symbols

10: Digital TV broadcast receiver 100: Receiver body 110: Tuner 120: DEMAX
130: Decoder 140: Audio processing unit 150: Video processing unit 160: QR code discrimination / extraction unit 162: Image capture unit 164: QR code discrimination unit 166: QR code extraction unit 170: Memory 180: Data communication unit 190: System control Unit 200: mobile terminal 210: data communication unit 220: display unit 230: key operation unit 240: memory 250: control unit

Claims (12)

A digital television broadcast receiver comprising a receiver body for receiving digital television broadcasts, and a portable terminal capable of data communication with the receiver body,
The receiver main body discriminates the two-dimensional code information included in the received digital television signal, extracts the two-dimensional code information from the digital television signal, and transmits the extracted two-dimensional code information to the portable terminal. Means,
The mobile terminal has a receiving means for receiving the two-dimensional code information, and a display means capable of displaying the two-dimensional code information.
Digital television broadcast receiver. 2. The digital television broadcast according to claim 1, wherein the portable terminal further includes a first memory for storing the received two-dimensional code information, and the display means displays the two-dimensional code information stored in the first memory. Receiver device. 3. The digital television broadcast receiver according to claim 1, wherein the portable terminal further includes a decoding unit that decodes the two-dimensional code information, and the display unit displays the decoded content. 4. The digital television broadcast receiver according to claim 3, wherein the decoding means decodes the two-dimensional code information in response to a user input. The digital television broadcast receiver according to claim 1, wherein the display means displays a list of received two-dimensional code information. The digital signal processing apparatus according to claim 1, wherein the receiver main body further includes a second memory for storing the extracted two-dimensional code information, and the transmission means transmits the two-dimensional code information stored in the second memory. TV broadcast receiver. 7. The digital television broadcast receiver according to claim 6, wherein the transmission means transmits the two-dimensional code information stored in the second memory in response to a transmission request from the portable terminal. The digital television broadcast receiver according to claim 1, wherein the portable terminal is a remote controller for remotely controlling the operation of the receiver body. 9. The digital television broadcast receiving apparatus according to claim 1, wherein the digital television broadcast receiving apparatus is for in-vehicle use, and the transmission means transmits the two-dimensional code information extracted while the vehicle is running to the portable terminal. . A display method of two-dimensional code information in a digital television broadcast receiver,
Determining two-dimensional code information contained in the received digital television signal and extracting the two-dimensional code information from the digital television signal;
Transmitting the extracted two-dimensional code information to the mobile terminal;
Displaying two-dimensional code information on the display unit on the mobile terminal side;
A method for displaying two-dimensional code information. The display method of two-dimensional code information according to claim 10, further comprising a step of decoding the two-dimensional code information on the mobile terminal side and a step of displaying the decoded content on the display unit. Method. The two-dimensional code information display method further includes a step of storing the two-dimensional code information in a memory on the mobile terminal side, and a step of displaying the stored two-dimensional code information on a display unit. Dimension code display method.

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