JP2019068185A - Digital broadcast receiving device, mobile terminal, and digital broadcast receiving system - Google Patents

Abstract

To provide a digital broadcast receiving device, a mobile terminal, and a digital broadcast receiving system that can adjust an antenna without depending on an external communication network.SOLUTION: A digital broadcast receiving device includes an apparatus or the like having a digital broadcast receiving function and a short-range wireless communication function and transmits, without going through an external communication network, information on received strength to a mobile terminal including the apparatus or the like having the short-range wireless communication function. The digital broadcast receiving device (television 1) includes an image generation unit for generating a received strength image indicating information on received strength and transmits the received strength image to the mobile terminal (tablet 3) via a short-range wireless communication unit.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a digital broadcast receiver and a digital broadcast reception system, and more particularly, to a technique for notifying a coordinator of information for antenna adjustment via a portable terminal.

  When purchasing and installing a television or recorder antenna, or when the antenna moves due to a typhoon or the like, it is necessary to properly adjust the direction in which the antenna faces. In particular, BS / CS antennas are required to be accurate. For this reason, the antenna adjuster (antenna installing person) needs to repeat the confirmation of the reception condition on the television and the adjustment of the antenna direction in order to adjust the direction of the antenna correctly. However, there are many cases in which the TV and the antenna are placed apart, which makes it difficult to work alone.

JP, 2001-69092, A With respect to such a subject, in the prior art (patent document 1), the receiving condition of a receiver is transmitted to a mobile telephone etc., and the antenna coordinator (antenna installation person) is from the said mobile telephone Techniques have been proposed for installing and adjusting antennas based on information.

However, in the prior art, in order to transmit to a mobile telephone etc. through the external communication network which makes a public (telephone) line an example, for example, 1) the apparatus corresponding to the public line is required,
2) A contract with the public line carrier is required,
3) It is inconvenient when the operator who performs antenna adjustment differs from the contractor because the public network carrier charges the contractor,
There is a problem to be solved, etc., and there is a need for a mechanism that can adjust the antenna without depending on the external communication network even if the installation places of the television and the antenna are separated.

  A digital broadcast receiving apparatus according to the present invention is characterized in that information on reception strength is transmitted to a portable terminal by near field communication without passing through an external communication network.

Since it transmits by near field communication without passing through the external communication network,
1) There is no need for equipment compatible with public lines,
2) No contract with the public line carrier is required,
3) There is no problem even when the operator who performs antenna adjustment is different from the contractor since there is no charge from the public network operator to the contractor,
It has the advantage of

  "Digital broadcast receiver" includes devices equipped with digital broadcast reception function and short distance wireless communication function, and more specifically, TV, recorder, set top box, game console, PC, etc. is there.

  The “portable terminal” includes devices provided with a short distance wireless communication function and the like, and more specifically, is a tablet terminal, a smartphone, a portable game machine, and the like.

  The digital broadcast receiving apparatus according to the present invention further comprises an image generation unit that generates a reception strength image indicating the information on the reception strength, and transmits the reception strength image to the portable terminal.

  By providing the image generation unit, the reception intensity image indicating the information of the reception intensity is transmitted to the portable terminal, so that the reception intensity can be grasped more intuitively while viewing the image on the portable terminal, and antenna adjustment can be performed more efficiently. it can.

  Further, the digital broadcast receiving apparatus according to the present invention changes a reception parameter by a receiving unit that receives the signal by the short distance wireless communication from the portable terminal and a control signal from the portable terminal received by the receiving unit. And a parameter changing unit.

  Since the reception parameter is changed by the control signal from the portable terminal, the reception parameter can be changed from the portable terminal even if the installation places of the digital broadcast receiving apparatus and the antenna are separated, and antenna adjustment can be performed more efficiently.

Further, the parameter changing unit included in the digital broadcast receiving apparatus according to the present invention is characterized by changing a parameter for switching the reception polarization of the antenna and / or a parameter of the tuning frequency of the reception signal.

  Since the parameter for switching the reception polarization of the antenna by the control signal from the portable terminal or the parameter of the tuning frequency of the reception signal is changed, the reception polarization of the antenna is obtained even if the installation place of the digital broadcast receiver and the antenna is far Can be changed, or the parameter of the tuning frequency of the received signal can be changed, and antenna adjustment can be performed more efficiently.

  Since the parameter for switching the reception polarization of the antenna and the parameter for the tuning frequency of the reception signal are changed by the control signal from the portable terminal, the reception polarization of the antenna is obtained even if the installation place of the digital broadcast receiver and the antenna is separated. Can be changed, and parameters of the tuning frequency of the received signal can be changed, and antenna adjustment can be performed more efficiently.

  In addition, the portable terminal according to the present invention comprises near field communication means for performing near field communication, establishes the near field communication with the digital broadcast receiving apparatus, and receives the digital broadcast by the near field communication. And a display unit configured to display information on reception intensity received from the apparatus.

  Thus, in addition to the advantages of 1) to 3) described above, antenna adjustment can be performed without depending on the external communication network even if the installation places of the digital broadcast receiving apparatus and the antenna are separated.

  Further, the mobile terminal according to the present invention is characterized in that a control signal for changing a reception parameter of the digital broadcast receiving apparatus is transmitted by the short distance wireless communication.

  Since the control signal for changing the reception parameter of the digital broadcast receiver is transmitted, the reception parameter can be changed from the portable terminal even if the installation place of the digital broadcast receiver and the antenna are separated, and antenna adjustment can be performed more efficiently.

  Further, the digital broadcast receiving system according to the present invention comprises a portable terminal and a digital broadcast receiving apparatus, and the portable terminal and the digital broadcast receiving apparatus have established communication by near field communication, and the digital broadcast receiving apparatus is And transmitting information on reception strength to the mobile terminal.

  Thus, in addition to the advantages of 1) to 3) described above, antenna adjustment can be performed without depending on the external communication network even if the installation places of the digital broadcast receiving apparatus and the antenna are separated.

  Further, a program according to the present invention operates on a portable terminal equipped with short distance wireless communication means for performing short distance wireless communication, and establishes a near field wireless communication with a digital broadcast receiving apparatus; And D. displaying the information of the reception intensity received from the digital broadcast receiving apparatus by distance wireless communication.

  Thus, in addition to the advantages of 1) to 3) described above, antenna adjustment can be performed without depending on the external communication network even if the installation places of the digital broadcast receiving apparatus and the antenna are separated.

  According to the digital broadcast receiving apparatus according to the present invention, antenna adjustment can be performed without depending on the external communication network even if the installation places of the digital broadcast receiving apparatus and the antenna are apart.

It is an explanatory view of a television system concerning the present invention. FIG. 1 is a block diagram of a television system according to the present invention. It is a figure which shows a mode that the receiving intensity image was displayed on the television which concerns on this invention. It is a figure which shows a mode that the receiving intensity image was displayed on the tablet terminal which concerns on this invention. It is a figure which shows the relationship between the channel number of the broadcast received by the television based on this invention, RF frequency, an intermediate frequency, the kind of polarization (right turn / left turn), local oscillation frequency, and (voltage value of superimposed power supply). .

  The digital broadcast receiving system according to the present invention is characterized in that antenna adjustment can be performed without depending on an external communication network. Hereinafter, an embodiment will be described based on the drawings.

Note that the overall configuration of the digital broadcast receiving system shown in the present embodiment and the configuration of each part are not limited to the embodiments described below, and are within the scope of the technical idea of the present invention, that is, the same effects and effects It can be changed within the range of the composition which can demonstrate.
Example 1
A television system composed of a television and a tablet terminal will be described as an example of a digital broadcast reception system composed of a digital broadcast receiving apparatus according to the present invention and a portable terminal. Examples of the digital broadcast receiving apparatus include a recorder, a set top box, a game machine, a PC, and the like as well as a television, and an apparatus provided with a digital broadcast receiving function corresponds thereto. Examples of the portable terminal include a tablet terminal, a smartphone, a portable game machine, and the like, and an apparatus provided with a short distance wireless communication function corresponds to the portable terminal.

  The digital broadcast receiver may be a digital broadcast receiver that does not have a display unit. For example, a recorder, a set top box, a desktop PC, etc. may be mentioned. In the present invention, since the reception intensity image indicating the information on the reception intensity is transmitted to the portable terminal, the reception intensity can be more intuitively viewed while viewing the image on the portable terminal even in a digital broadcast receiving apparatus without the display unit. It can be grasped and antenna adjustment can be performed more easily.

FIG. 1 is an explanatory view of a television system according to the present invention. The television 1 is connected to the antenna 2 by a coaxial cable. Also, the television 1 is installed indoors, and the antenna 2 is installed outdoors, as in the case of outdoor. The tablet terminal 3 is a general product for general consumers equipped with a general-purpose OS. The television 1 and the tablet terminal 3 both have near field wireless communication functions, and communicate with each other by near field wireless communication. The antenna adjuster adjusts the direction in which the antenna 2 points while looking at the information on the reception intensity displayed on the tablet terminal 3. The detailed procedure of adjustment will be described later.

  FIG. 2 is a block diagram of a television system and an antenna 2 according to the present invention. The television system comprises a television 1 and a tablet terminal 3.

The antenna 2 is for receiving broadcast waves of satellite broadcast (for example, BS (Broadcasting Satellite) broadcast and CS (Communications Satellite) broadcast, and receives broadcast waves transmitted on RF (Radio Frequency) frequency to be an intermediate frequency. Convert and output. Also, the power of the antenna 2 is supplied from the television 1 via a coaxial cable. The television 1 superimposes the power supply on the coaxial cable and supplies the information of the received broadcast wave to the antenna 2. The antenna 2 switches the polarization to be received according to the voltage of the superimposed power supply supplied. As illustrated in FIG. 5, in this example, DC 15 V
In the case of (DC: Direct Current), right-handed circular polarization is received, and in the case of 11V DC, left-handed circular polarization is received.

<TV>
The television 1 receives a broadcast wave by the antenna 2 and views a program.

  The television 1 includes a tuner 11 for tuning, a demodulator 12 for demodulation, a descrambler 13 for descrambling, a separator 14 for separation, a video decoder 15 for decoding video, and a presentation processor for performing presentation processing 16, a display unit 17 for displaying, an audio decoding unit 18 for decoding audio, a reproducing unit 19 for reproducing audio, a short distance wireless communication unit 20 for performing short distance wireless communication, a remote control light receiving unit 21 for receiving remote control signal , And a CPU 22 (Central Processing Unit) that performs control, and a memory 23 that performs storage.

  A process of displaying a broadcast wave received from the antenna 2 will be described.

  The broadcast wave input from the antenna 2 to the television 1 via the coaxial cable is input to the tuner 11.

  The tuner 11 tunes to a frequency (indicated by the CPU 22) at which the service selected by the user's tuning operation is transmitted.

The demodulation unit 12 performs processing such as digital demodulation such as 8 PSK (PSK: Phase Shift Keying), transmission descrambling, deinterleaving, error correction, etc., and then a transmission slot in which the service selected by the user's channel selection operation is transmitted Select (indicated by the CPU 22) to output a transport stream.

The descrambling unit 13 decrypts the encrypted data for limited reception in pay broadcasting and the like. At this time, key information for decryption to be used is acquired from an IC card connected via an IC card IF unit (not shown) and supplied to the descrambling unit 13 by the CPU 22.

The separation unit 14 separates components (video, audio, data broadcast, and other data) constituting the service selected by the user's tuning operation from the transport stream defined by the MPEG (Moving Picture Experts Group) standard. . Among the separated components (elementary streams), the video and audio are respectively sent to the video decoding unit 15 and the audio decoding unit 18. The video decoding unit 15 and the audio decoding unit 18 perform decoding processing by MPEG. After the decoding process is performed, the video is displayed on the display unit 17, and the audio is reproduced on the reproduction unit 19. The data broadcast is processed by the CPU 22 and drawn as a data broadcast in the buffer of the presentation processing unit 16. The rendered data broadcast is combined with the video in the presentation processing unit 16. The data broadcast combined with the video is displayed on the display unit 17.

The presentation processing unit 16 includes one or more buffers for graphic drawing, and combines the video output from the video decoding unit 15, the data broadcast processed by the CPU 22 and drawn in the buffer, and the like, and displays it on the display unit 17. Generate an image. Other examples include subtitles, text overlays, electronic program guides (EPGs), applications, menu screens, and the like. Subtitles, superimposes, EPGs, applications, and menu screens are drawn in a buffer by the CPU 22 and combined with video and data broadcasting. The television 1 can also transmit the graphic (image) drawn in the buffer of the presentation processing unit 16 and an image obtained by combining this with video and data broadcasting to another device. This is realized as follows. The graphic (image) drawn in the buffer of the presentation processing unit 16 and the image obtained by combining this with video and data broadcasting are sent to the short distance wireless communication unit 20 and sent to another device.

  The display unit 17 includes a liquid crystal panel, a driver, an image processing unit, and the like, and displays an image generated by the presentation processing unit 16.

The short distance wireless communication unit 20 (receiving unit) is a portion that performs short distance wireless communication with a wireless terminal around the television 1, and according to the wireless LAN (Local Area Network) standard of IEEE802.11a and IEEE802.11g. Communicate.

The short distance wireless communication is wireless communication used for communication distance at the wireless LAN level or communication distance shorter than this. The wireless communication according to the wireless LAN standard of IEEE802.11a and IEEE802.11g, or the communication according to the Bluetooth (registered trademark) standard may be used as another example.

  The short distance wireless communication unit 20 (reception unit) communicates with the tablet terminal 3 described later in this example. As an example of the communication content, a graphic screen (reception intensity image) for graphically displaying information on reception intensity of an antenna described later is transmitted to the tablet terminal 3. Also, the remote control signal (control signal) from the tablet terminal 3 for operating the graphic screen is received.

The remote control light receiving unit 21 receives infrared rays output from a remote control (not shown). The infrared light includes operation information generated by operating the remote controller, and the operation information is sent to the CPU 22. The user performs power on / off, channel switching, volume control, and various settings by operating the various setting menus of the television 1 using the remote control.

The memory 23 includes volatile memory and non-volatile memory. The non-volatile memory stores a control program of the television 1, reception parameters to be described later, and various setting contents. The CPU 22 controls the entire television 1 while storing various data in the memory 23.

<Tablet terminal>
The tablet terminal 3 controls the CPU 31, the memory 32 for storing, the short distance wireless communication unit 33 for performing short distance wireless communication, the presentation processing unit 34 for performing presentation processing, the display unit 35 for performing display, and the audio reproduction. The playback unit 36 and an input unit 37 for performing input from the user.

Memory 32 includes volatile memory and non-volatile memory. The non-volatile memory stores a control program of the tablet terminal 3 such as an operating system, various setting contents, data recorded by an application on the tablet terminal 3, and the like. The CPU 31 controls the tablet terminal 3 while storing various data in the memory 32.

The short distance wireless communication unit 33 performs short distance wireless communication in accordance with the wireless LAN standards of IEEE802.11a and IEEE802.11g. In this example, communication with the television 1 is performed. As an example of the communication content, a graphic screen (reception intensity image) for graphically displaying information of reception intensity of an antenna described later is received from the television 1. Also, a remote control signal for operating this graphic screen is transmitted to the television 1.

  The presentation processing unit 34 includes one or more buffers for graphic drawing, and generates an image to be displayed on the display unit 35. Specific examples of the image include a home screen provided by an operating system that controls the tablet terminal 3 and a screen of an application operating on the tablet terminal 3. The generation of the image is performed by drawing in the buffer according to the drawing instruction of the program that executes the operating system or application.

  The display unit 35 includes a liquid crystal panel 404, a driver, and the like, and displays an image generated by the presentation processing unit 34. The liquid crystal panel 404, the driver, and the like also operate as the input unit 37. The user makes an input to the tablet terminal 3 by touching the liquid crystal panel 404. In practice, when the user touches with a finger, this position is detected and position data is sent from the input unit 37 to the CPU 31.

  The input unit 37 includes a liquid crystal panel 404, an operation button 401, and the like. The user can input data to the tablet terminal 3 by touching the liquid crystal panel 404, and can also input data by pressing the operation button 401.

  The reproduction unit 36 reproduces voice data sent from the CPU 31 as voice.

<Antenna setting menu>
This will be described below with reference to FIGS. 3 and 5.

  An antenna setting menu which is a function incorporated in the television 1 will be described. The antenna setting menu has a function of displaying the reception intensity of each channel constituting the broadcast. In general antenna adjustment, the antenna adjuster performs antenna adjustment while looking at a screen (antenna setting menu screen) on which the antenna setting menu of the television 1 is displayed, or while having someone look at it.

  The reception strength is a value defined so that broadcast reception can be performed well. The description regarding the reception strength is usually described in the instruction manual of the television 1 or the like. Definitions may differ by manufacturer or model. The reception strength may be called, for example, antenna level, reception level, antenna input level, signal strength, signal quality, reception status, and the like. The definition in this example is as follows. The reception strength takes a value of 0 to 99. The larger the value, the better the broadcast reception can be performed, and if the antenna or the like is adjusted so that the reception intensity is equal to or more than a predetermined threshold (for example, 60), the television 1 can perform good viewing without noise. The design of is defined. The reception strength is generated based on the level of the reception signal obtained from the tuner 11, the bit error rate obtained from the demodulation unit 12, and the like.

FIG. 3 is a diagram showing a state in which the BS satellite signal test screen 300 (reception intensity image) is displayed on the display unit 17 of the television 1. The menu of the BS satellite signal test represented on the BS satellite signal test screen 300 is a part of the antenna setting menu. Also, the BS satellite signal test screen 300 is a type of antenna setting menu screen. BS satellite signal test screen 30
0 is drawn in the buffer of the presentation processing unit 16 according to an instruction of the CPU 22 (image generation unit), and is displayed by the display unit 17. Further, the BS satellite signal test screen 300 is transmitted from the short distance wireless communication unit 20 to the tablet terminal 3 by short distance wireless communication. The BS satellite signal test screen 300 is a graphical user interface, and includes an object 302 for selecting channel numbers “BS-1” to “BS-23”, a display 303 of the selected channel number, and the channel It comprises a bar 304 indicating the current value of the reception strength of the number, a display 305 of the current value, and a display 306 of the maximum value of the reception strength during a predetermined period (for example, 10 seconds).

The BS satellite signal test screen 300 is displayed by the operation of the user.
When the user presses the menu button of the remote control, the setting item (menu first layer) is displayed. Further, the item "Antenna setting" is selected from the setting items with the cursor key and the enter key of the remote control. Furthermore, the BS satellite signal test screen 300 is displayed by similarly selecting “Signal Test-BS” 301 from the displayed items (menu second layer). In this screen, “BS-15” is selected as the channel number, and it is shown that the current value of the reception strength of the BS-15 channel is “87”. In addition, the user can switch the channel number with the cursor key and the enter key of the remote control. For example, when "BS-16" is selected, the CPU 22 switches (the voltage of) the superimposed power supply to the antenna 2 to the tuner 11 to receive the polarized wave on which the BS-16 channel is transmitted, and the BS-16 channel Directs to tune to the frequency to be transmitted. Thus, the tuner 11 switches (the voltage of) the superimposed power supply and tunes to the frequency. The demodulator 12 estimates a bit error rate. The CPU 22 acquires the received signal level and bit error rate from the tuner 11 and the demodulator 12, respectively, generates the reception intensity based on these, and displays the bar and the value as the current value.

FIG. 5 will be described. FIG. 5 illustrates an example of specifications of each channel of satellite broadcasting. The channel number is the number of each channel of satellite broadcasting. In this example, BS-1 to BS-24. The RF frequency is the frequency of the carrier wave of the broadcast wave. The intermediate frequency is the frequency after conversion in the antenna 2. The intermediate frequency is a parameter of the tuning frequency of the received signal. The right turn / left turn is the type of polarization of the broadcast wave and differs depending on the channel. The types of polarization include vertical polarization, horizontal polarization, right-handed circular polarization, left-handed circular polarization, etc. In this example, right-handed circular polarization (right-handed), left-handed circular polarization (left-handed circular polarization (left-handed) Is used. If the antenna 2 is set to receive a right turn, the left turn can not be received (and vice versa). The local frequency is the frequency of a local oscillator used to convert a broadcast wave transmitted at an RF frequency in the antenna 2 to an intermediate frequency. Described in the column of the superimposed power supply of FIG. 5 is the voltage of the superimposed power supply. The superimposed power source is a power source supplied from the television 1 to the antenna 2 via a coaxial cable (antenna wire). The superimposed power source is a power source and also has a function to switch functions by voltage value. The voltage value of the superimposed power supply is a parameter for switching the reception polarization of the antenna. In this example, switching between right rotation and left rotation is performed by setting either DC 15 V or DC 11 V. In the case of right-handed rotation, DC 15 V is supplied, and in the case of left-handed rotation, DC 11 V is supplied. In the case of BS-1, as shown in the row of BS-1 in FIG. 5, DC 15 V is set because it is right-handed, and in the case of BS-2, it is left-handed as in the row of BS-2, DC11V is set. The channel number, the RF frequency, the intermediate frequency, the type of polarization, the local oscillation frequency, and the voltage value of the superimposed power supply can be said to be reception parameters, respectively, and these relationships are stored in the non-volatile memory of the television 1.

  The reception parameter is a parameter for receiving a broadcast. In addition to the above channel number, RF frequency, intermediate frequency, type of polarization, local oscillation frequency, voltage value of superimposed power source, data for specifying a broadcasting satellite, satellite, broadcasting, system, transport stream in digital broadcasting Or, an identifier for specifying a service, such as a network ID, a transport stream ID, a service ID, etc. is also included.

The switching of the channel number and the switching (change) of the reception parameter accompanying this can be performed not only by the remote control but also by the remote control signal from the tablet terminal 3 as described later. The remote control signal from the tablet terminal 3 is received by the short distance wireless communication unit 20 and sent to the CPU 22, and the CPU 22 (parameter change unit) presses the remote control cursor key and the enter key in accordance with the remote control signal. Switch the channel numbers and change the reception parameters in the same way as in the case above.

<Antenna setting application displayed on tablet terminal>
The screen displayed on the tablet terminal 3 according to the present invention will be described.

  This screen is a screen of the antenna setting application, and includes an antenna setting menu screen of the television 1 and an object which is a part of a user interface for operating the antenna setting menu screen.

  FIG. 4 is a diagram showing the screen 403 of the antenna setting application being displayed on the liquid crystal panel 404 of the tablet terminal 3. A liquid crystal panel 404 which is the display unit 35 and the input unit 37 and an operation button 401 which is the input unit 37 are disposed outside the tablet terminal 3.

  The antenna setting application screen 403 includes a BS satellite signal test screen 300 and a button (button object) 402 for operation.

  In the BS satellite signal test screen 300, an image displayed on the television 1 is transmitted from the near field communication unit 20 of the television 1, and this is received by the near field communication unit 33 of the tablet terminal 3 and displayed.

The operation button 402 includes a cursor movement button, an enter button, and a back button. These buttons are graphical user interfaces that the CPU 31 draws and displays. When these buttons are pressed (specifically, touch the portion of the liquid crystal panel 404 where the button is displayed), data (remote control signal) indicating that the button is pressed is the CPU 3
1, and the remote control signal is transmitted to the television 1 via the short distance wireless communication unit 33. The television 1 performs the operation of the BS satellite signal test screen 300 according to the remote control signal received through the short distance wireless communication unit 20 in the same manner as when the cursor movement key or the determination key of the remote control is pressed.

  Thus, by displaying a screen (image) of substantially the same image as the screen related to the antenna adjustment displayed on the television on the tablet, the antenna adjuster smoothly operates the antenna in the operation method along the known adjustment screen. You can make adjustments.

<Use scene of antenna adjuster>
The flow of the adjustment work according to the present invention will be described. The antenna 2 is installed at a distance from the television 1 and the orientation of the antenna 2 is not adjusted yet.

  First, the operator (antenna coordinator) causes the television 1 to display the BS satellite signal test screen 300, and selects an appropriate channel, for example, BS-15.

Next, the worker activates an antenna setting application (an application for displaying the BS satellite signal test screen 300) of the tablet terminal 3. Then, a receiver selection screen for selecting a receiver is displayed. On this screen, receivers that can communicate with the tablet terminal 3 and can display a BS satellite signal test screen are listed. In addition to the television 1 described above, other televisions, recorders and the like may be included in the list display. From this, the television 1 which is a desired receiver is selected. In order to be distinguishable from other receivers, a uniquely assigned identifier, for example, a MAC (Media Access Control) address assigned to a radio interface configuring the short-range wireless communication unit 20 is used as a BS satellite signal test of the receiver. It may be displayed on the screen so that the desired receiver can be selected based on this. When the television 1 is selected, the antenna setting application establishes a connection with the television 1. It can be said that the tablet terminal 3 establishes near field communication with the television 1. Thereby, the antenna setting application receives the BS satellite signal test screen 300 displayed on the selected television 1 via the short distance wireless communication unit 33 and displays the same. In other words, it can be said that the information of the reception strength is displayed. As a result, the operator can check the BS satellite signal test screen 300 displayed on the television 1 even on the tablet terminal 3.

  Next, the worker holds the tablet terminal 3, leaves the television 1, and moves to the source of the antenna 2. Then, while looking at the reception intensity of the BS satellite signal test screen 300 displayed on the tablet terminal 3, the angle of the antenna 2 is adjusted. Further, the channel number is switched by the operation button 402 on the tablet terminal 3, and adjustment is performed while confirming whether good reception can be performed on all the channels.

  Thus, the adjustment of the antenna 2 is completed. If the tablet terminal 3 is provided, the reception intensity of the BS satellite signal test screen 300 can be viewed even if the user is away from the television 1 and since the channel to be received can be switched on the BS satellite signal test screen 300 The antenna 2 can be adjusted by one person, and the burden can be reduced.

  The present invention can also be realized as a program, and it is a matter of course that the program may be realized by being recorded on a recording medium. As the recording medium, a “non-transitory tangible medium”, for example, a tape, a disk, a card, a semiconductor memory, a programmable logic circuit or the like can be used. The program may be supplied to the computer via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the program is embodied by electronic transmission.

  According to the present invention, near-field wireless communication is used for transmission of information on reception strength from the digital broadcast receiving apparatus to the portable terminal, and therefore, in addition to the advantages of 1) to 3) described above, the digital broadcast receiving apparatus and antenna Even if the installation location is far away, antenna adjustment can be performed without depending on the external communication network.

  The basis of this is as follows. In the prior art (Patent Document 1), transmission was made to a mobile phone etc. through an external communication network such as a public (telephone) line, but the digital broadcast receiving apparatus according to the present invention This is because transmission to the portable terminal is performed by distance wireless communication. Even if the short-distance wireless communication technology is simply adopted as the conventional technology, it is characterized in that “information of reception strength is transmitted to a portable terminal by short-distance wireless communication” which is a unique configuration of the present invention. There is no indication of disclosure, and it is not easy to conceive of the present invention.

  The present invention relates to a digital broadcast receiver that notifies an coordinator of information for antenna adjustment via a mobile terminal, and has high industrial applicability.

Reference Signs List 1 television 2 antenna 3 tablet terminal 11 tuner 12 demodulation unit 13 descrambling unit 14 separation unit 15 video decoding unit 16 presentation processing unit 17 display unit 18 audio decoding unit 19 reproduction unit 20 near field communication unit 21 remote control light receiving unit 22 CPU
23 Memory 31 CPU
32 memory 33 near field communication unit 34 presentation processing unit 35 display unit 36 reproduction unit 37 input unit 300 BS satellite signal test screen 301 menu second hierarchy 302 channel number selection object 303 channel number display 304 reception strength display bar (current value)
305 Received power indication (current value)
306 Received power indication (maximum value)
401 button 402 button object 403 antenna setting application screen 404 liquid crystal panel

Claims (8)

A digital broadcast receiver for transmitting information on reception strength to a portable terminal, comprising:
Transmitting the information of the reception strength to the portable terminal by near field communication;
A digital broadcast receiver characterized in that. The digital broadcast receiver according to claim 1, wherein
An image generation unit configured to generate a reception intensity image indicating information on the reception intensity;
Sending the received intensity image to the mobile terminal;
A digital broadcast receiver characterized in that. The digital broadcast receiver according to claim 1 or 2, wherein
A receiver configured to receive a signal by the short distance wireless communication from the portable terminal;
A parameter change unit that changes a reception parameter according to a control signal from the mobile terminal received by the reception unit;
A digital broadcast receiver comprising: The digital broadcast receiver according to claim 3, wherein
The parameter changing unit changes a parameter for switching the reception polarization of the antenna and / or a parameter of the tuning frequency of the reception signal.
A digital broadcast receiver characterized in that. A portable terminal equipped with near field communication means for performing near field communication,
Establish the near field communication with the digital broadcast receiver,
A display unit for displaying information on reception intensity received from the digital broadcast receiving apparatus by the short distance wireless communication;
A portable terminal characterized by comprising. The mobile terminal according to claim 5, wherein
Transmitting a control signal for changing a reception parameter of the digital broadcast receiving apparatus by the short distance wireless communication;
A portable terminal characterized by A digital broadcast receiving system comprising a portable terminal and a digital broadcast receiving apparatus,
Communication between the portable terminal and the digital broadcast receiver has been established by near field communication,
The digital broadcast receiver transmits information on reception strength to the mobile terminal.
Digital broadcast receiving system characterized by A program for operating on a portable terminal equipped with near field communication means for performing near field communication,
Establishing a communication with the digital broadcast receiver and the near field communication;
A display step of displaying information of reception strength received from the digital broadcast receiving apparatus by the short distance wireless communication;
Programs that include

Images