JP2004254091A - Receiving state management device and digital broadcasting receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receiving state management device for always using the latest information to easily update a channel by accurately managing the receiving state of a digital broadcasting receiver. <P>SOLUTION: The receiving state management device 1 transmits a receivable channel and a receiving state at the installed place of the digital broadcasting receiver (receiver 6) to the digital broadcasting receiver (receiver 6). The device 1 obtains information of the receiving location and receiving state of the digital broadcasting receiver (receiver 6) from the digital broadcasting receiver (receiver 6) and updates the management information of the receiving state. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a reception state management device and a digital broadcast receiving device in digital broadcasting, and is particularly suitable for digital terrestrial broadcasting.
[0002]
[Prior art]
In digital terrestrial broadcasting, since it is assumed that the broadcasting service will be started in stages for a while after the service is started, the receivable channel will change depending on the service start time even in the fixed position reception. . In the case of reception involving movement, the receivable channel changes with movement even if the service start time does not change.
[0003]
As a technology related to the processing of a reception channel in reception involving movement, a GPS function for determining a reception position and a channel memory in which receivable channels for each area are stored in advance are provided. Some receivable channels are called from a channel memory and used (for example, refer to Patent Document 1).
However, this method cannot be used in a system such as digital terrestrial broadcasting in which receivable channels change with time according to the service provision status.
[0004]
In addition, in the terrestrial digital broadcast receiving apparatus, a method of detecting a receivable channel while moving the receiving frequency of the tuner may be considered. In fixed reception, once a reception channel is detected, there is not much need for updating, but in reception involving movement, frequent channel detection is required, and viewing is restricted during channel search. In addition, since a relatively long time is required for the channel search, the usability is deteriorated.
[0005]
[Patent Document 1]
JP-A-5-83648
[Problems to be solved by the invention]
As described above, in reception involving movement, receivable channels frequently change, and a channel search is required each time. Since the channel search cannot be performed during viewing, the viewing is interrupted and the channel search is performed.
[0007]
Further, in the related art, there is no system for collecting and managing information on the reception state of the digital broadcast receiving apparatus (for example, a television receiver), and thus there is no method for knowing the correct receivable channel and the service area.
[0008]
Further, even if the reception state can be received by communication from the television receiver, the position cannot be recognized by the conventional television receiver. Further, even if a management center in the reception state is provided, there is still a need for income and the like for operating the management center, and there are various other restrictions.
[0009]
The present invention has been made in view of the above circumstances, and provides a reception state management device and a digital broadcast reception device that can accurately manage the reception state of a digital broadcast reception device and easily perform channel update. The purpose is to:
[0010]
[Means for Solving the Problems]
A reception state management device according to the present invention is a device for managing a reception state of a digital broadcast, a communication unit for exchanging various information and data with a digital broadcast reception device, and Means for transmitting information about the receivable channel and reception state corresponding to the position of the digital broadcast receiving device to the digital broadcast receiving device, and communicating with the plurality of digital broadcast receiving devices, Means for obtaining reception position and reception state information, and means for updating reception state management information using reception state information obtained from each of the digital broadcast receiving apparatuses. Things.
[0011]
The digital broadcast receiving apparatus according to the present invention is a digital broadcast receiving apparatus for exchanging various information and data with a reception state management apparatus for managing a reception state of a digital broadcast, wherein the reception state Means for communicating with the management device and obtaining information about a receivable channel and a reception state at its own reception point; and means for transmitting information about the reception state to the reception state management device. It is characterized by the following.
[0012]
That is, in the present invention, the receivable channel and the state of the reception state at the installation location of the digital broadcast reception device are transmitted from the reception state management device to the digital broadcast reception device. Further, the reception state management device obtains information on the reception position and the reception state from the digital broadcast reception device. Then, by updating the reception state management information using the information obtained from the digital broadcast receiving apparatus, it is possible to always update the channel using the latest information.
[0013]
Further, the digital broadcast receiving apparatus according to the present invention includes mobile communication means for performing communication by mobile communication, and performs communication by mobile communication in communication with the reception state management apparatus. It is.
[0014]
Further, the reception state management device according to the present invention, based on the position of the mobile communication base station with which the digital broadcast receiving device capable of mobile communication is communicating by mobile communication, determines the position of the communication partner digital broadcast receiving device. The mobile communication base station is provided with means for recognizing the mobile communication base station.
[0015]
That is, in the present invention, communication by mobile communication is performed between the reception state management device and the digital broadcast receiving device. The digital broadcast receiving apparatus recognizes the position of the digital broadcast receiving apparatus based on the position of the mobile communication base station used for mobile communication, and performs reception state management for each mobile communication base station. Even when mobile communication is used, accurate information management can be performed.
[0016]
Further, the reception state management device according to the present invention includes means for transmitting image, character information, and sound to the digital broadcast receiving device by communication, and the digital broadcast receiving device transmits the image, character information, and sound. It is characterized in that output is possible.
[0017]
Further, the digital broadcast receiving apparatus according to the present invention includes means for outputting the image, character information, and sound transmitted from the reception state management apparatus to a user, and provides notification of useful information, provision of advertisement, and the like. It is characterized by performing.
[0018]
That is, in the present invention, the image, character information, and sound are transmitted from the reception state management device to the digital broadcast receiving device. The digital broadcast receiving apparatus can output the received image, character information, and sound to the user, thereby notifying useful information and providing an advertisement or the like.
[0019]
Further, the reception state management device according to the present invention includes means for holding a software module for changing software of the digital broadcast receiving device in correspondence with an area where the digital broadcast receiving device is used. ,
A desired software module is transmitted to the digital broadcast receiving apparatus.
[0020]
Further, the digital broadcast receiving apparatus according to the present invention, by communicating with the reception state management apparatus, means for obtaining a software module,
Means for changing various functions by adding or replacing the software module.
[0021]
That is, in the present invention, the software module corresponding to the area where the digital broadcast receiving device is installed is transmitted from the receiving state management device to the digital broadcast receiving device. The digital broadcast receiving apparatus can change various functions by adding or replacing the received software module.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a reception state management device and a digital broadcast reception device according to the present invention will be described with reference to the drawings.
[0023]
FIG. 1 is an explanatory diagram showing a relationship between a reception state management device and a digital broadcast receiving device according to an embodiment of the present invention. FIG. 2 is a block diagram showing a configuration of the reception state management device according to an embodiment of the present invention. FIG. 3 is a block diagram illustrating a configuration of a digital broadcast receiving device according to an embodiment of the present invention.
[0024]
By the way, in the field of digital broadcasting, the broadcasting form is steadily progressing from conventional satellite broadcasting to cable broadcasting and terrestrial broadcasting. In such a situation, digital terrestrial broadcasting is viewed while moving. To do so, means for obtaining information on receivable channels is required. In this regard, in the related art, information on the receivable channel is obtained by searching for a receivable channel using a method using a channel memory.
[0025]
On the other hand, the digital broadcast receiving apparatus according to the present invention is characterized in that information on a receivable channel is obtained from the reception state management apparatus by communication.
[0026]
<Relationship between reception status management device and digital information reception device>
As shown in FIG. 1, the reception state management device 1 according to the embodiment of the present invention has a database for managing the reception state, and a digital broadcast reception device (hereinafter, referred to as a receiver 6) ). In addition, a terrestrial broadcast transmission tower 2, a mobile communication base station (A) 3, a mobile communication base station (B) 4, and a mobile communication base station (C) 5 are installed at appropriate positions.
[0027]
The receiver 6 includes mobile communication means, and communicates with the reception state management device 1 via a nearby mobile communication base station (mobile communication base station (B) 4 in the example shown in FIG. 1). , And information such as receivable channels. Then, once the reception is successful using the received information, the reception state (antenna strength, bit error rate, etc.) is transmitted to the reception state management device 1.
[0028]
Since the mobile communication base station (mobile communication base station (B) 4 in the example shown in FIG. 1) used by the receiver 6 is close to the receiving position, the mobile communication base station (B) 4 used The area where the receiver 6 exists can be specified from the position. In addition, the reception state management device 1 is connected to a management device (not shown) of the mobile communication company via a communication line 9 and transmits the position information of the receiver 6 from the management device of the mobile communication company. The data is received via the communication line 9 and the position of the receiver 6 is specified.
[0029]
Since the position of the receiver 6 can be specified in this manner, the reception state management device 1 searches the database for receivable channel information corresponding to the reception position and provides the information to the receiver 6. Further, the database is updated with the reception status data sent from the receiver 6, but the data can be obtained from the other plurality of receivers 6, so that the information in the database is enriched and up-to-date.
[0030]
By managing the reception state in this manner, the information can be used for maintenance and control of the terrestrial broadcast transmission tower 2. For example, if the reception state deteriorates, it is possible to take measures such as increasing the transmission intensity of the radio wave.
[0031]
In addition, since the reception state management device 1 is connected to the receiver 6 via the communication line 9 and can detect the position of the receiver 6, it is also possible to provide useful information and advertisement corresponding to the reception area. . Then, the advertisement revenue can be used for the operation of the reception state management device 1.
[0032]
<Reception state management device>
As shown in FIG. 2, the reception state management device 1 is connected to the communication line 9 by a network line terminal 31 and is connected to a management device (not shown) of a mobile communication carrier. Reference numeral 32 communicates with the receiver 6 and a management device of a mobile communication company under the control of the controller 34.
[0033]
The controller 34 searches the plurality of reception state management memories 35 for the reception state corresponding to the position of the receiver 6 obtained by the communication, and provides information such as a receivable channel to the receiver 6 via the communication line 9. I do.
[0034]
Further, a software module corresponding to the receiving point and the receiver 6 can be searched from the plurality of software module libraries 36 and provided to the receiver 6. Further, the image data, the character information, and the content data stored in the audio memory 33 are transmitted to the receiver 6 as necessary. These image, character information, and audio data can be used for information specific to the reception area, advertisements, messages to the receiver 6, and the like. Since the position of the receiver 6 can be easily managed for each mobile communication base station, the reception state management memory 35 and the software module library 36 may be divided for each mobile communication base station. For example, in FIG. 2, the units of the mobile communication base station are divided into point A, point B, point C,..., Point Z.
[0035]
<Receiver (Digital Broadcast Receiver)>
The receiver 6 can obtain receivable channel information by communicating with the reception state management device 1 via the mobile communication antenna 25 and the mobile communication unit 26 as shown in FIG. The obtained information is sent to the controller 22, and the controller 22 updates the receivable channel information held in the memory 27.
[0036]
When a new receivable channel is selected by a user operation, the tuner 12 is controlled based on the receivable channel information, and a broadcast wave from the digital broadcast receiving antenna 11 is received.
[0037]
The received signal in the desired frequency band extracted by the tuner 12 is supplied to a digital demodulation unit 13, which performs digital demodulation such as analog-to-digital conversion and OFDM, finally performs error correction, and outputs a digital signal (transport stream). And supplied to the signal separation unit (demultiplexer) 14.
[0038]
The video data extracted by the signal separation unit 14 is supplied to a video decoding unit 15, and the audio data is supplied to an audio decoding unit 16. In the video decoding unit 15, the compressed video data is decoded and supplied to the adding unit 17. The adder 17 superimposes the OSD supplied from the OSD generator 23 on the video and outputs it to the video output terminal 19. In the audio decoding unit 16, the compressed audio data is decoded and supplied to the adding unit 18. The adder 18 mixes the sounds supplied from the sound generator 24 and outputs the mixed sound to the sound output terminal 20.
[0039]
The memory 27 holds the operation program of the controller 22, and also holds the reception state information, image, character information, audio data, and software modules received from the reception state management device 1. Note that the controller 22 includes a remote control light receiving section 21 so as to receive an infrared signal from the remote control.
[0040]
The controller 22 controls the entire receiver 6 in the following procedure under the control of a program stored in the memory 27.
[0041]
(1) The mobile communication antenna 25 and the mobile communication unit 26 store in the memory 27 the receivable channel information provided by communicating with the reception state management device 1 side.
[0042]
(2) The tuner 12 and the digital demodulation unit 13 are set by a user operation or an instruction from the reception state management device 1 to receive a broadcast.
[0043]
(3) The reception state such as the reception radio field intensity and the bit error rate is read from the tuner 12 and the digital demodulation unit 13, and the data is transmitted via the mobile communication unit 26 and the mobile communication antenna 25 to the reception state management device 1. Send to
[0044]
(4) The mobile communication antenna 25 and the mobile communication unit 26 receive the image, character information, and audio data provided by communicating with the reception state management device 1 and store them in the memory 27.
[0045]
(5) The image and character information stored in the memory 27 are supplied to the OSD generation unit 23 and the audio data is supplied to the audio generation unit 24 in response to a user operation or an instruction from the reception state management device 1. Then, an OSD for displaying images and character information is created by the OSD generation unit 23, audio is created by the audio generation unit 24, and the decoded video and audio are mixed and provided to the user.
[0046]
(6) The software module provided by communicating with the reception state management device 1 is received by the mobile communication antenna 25 and the mobile communication unit 26, and stored in the memory 27.
[0047]
(7) In response to a user operation or an instruction from the reception state management device 1, the operation program is changed using the software module stored in the memory 27, and various functions of the receiver 6 are changed.
[0048]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the receiving state management apparatus which concerns on this invention, the latest receiving state can be managed by acquiring the information of a receiving state from several digital broadcast receiving apparatuses. Further, by transmitting the information to the digital broadcast receiving apparatus, the digital broadcast receiving apparatus can receive information such as a receivable channel.
Therefore, the digital broadcast receiving apparatus does not need to perform a channel search, and the user can update the channel setting while watching the broadcast. In addition, since the latest reception state can always be managed, the information can be used for maintenance of broadcasting equipment. Furthermore, it is also possible to control the transmission level according to the reception state, and to reduce reception deterioration due to the influence of weather or the like.
[0049]
Further, according to the digital broadcast receiving apparatus of the present invention, since information such as receivable channels can be received from the reception state management apparatus, there is no need to perform a channel search. Updates can be performed.
[0050]
Further, according to the digital broadcast receiving apparatus of the present invention, since information such as a receivable channel can be received from the reception management system while moving using mobile communication, the channel search can be performed even in reception involving movement. This eliminates the need to do so, and allows the user to update the channel settings while watching the broadcast. That is, since the channel setting can be updated while watching the broadcast, the receivable channels can be constantly updated, and it is possible to configure an optimal device for mobile reception by terrestrial broadcasting. Become.
[0051]
According to the reception state management device of the present invention, the position information of the digital broadcast receiving device can be obtained from the position information of the mobile communication base station used by the digital broadcast receiving device. Even if there is no special position detecting means on the receiving device side, it is possible to provide received information corresponding to the position of the digital broadcast receiving device.
[0052]
Further, according to the reception state management device of the present invention, since images, text information, and audio can be transmitted to the digital broadcast reception device, it is possible to provide information to users and to earn revenue from advertisements, Can be applied to the operation of the reception state management device.
[0053]
Further, according to the digital broadcast receiving apparatus of the present invention, since the image, character information, and sound received from the reception state management apparatus can be output, it is possible to provide useful information, advertisement, and the like to the user. .
[0054]
According to the reception state management device of the present invention, a software module corresponding to the position of the digital broadcast receiving device can be provided to the digital broadcast receiving device. Can be performed.
[0055]
Further, according to the digital broadcast receiving apparatus of the present invention, the software module corresponding to the receiving position is obtained from the receiving state management apparatus, and the software module adapted to the receiving point is incorporated, so that various types of the digital broadcast receiving apparatus are obtained. The function can be changed. For this reason, for example, it is possible to enjoy a way of displaying a screen in a dialect of a region where the digital broadcast receiving device is installed.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a relationship between a reception state management device and a digital broadcast reception device according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a configuration of a reception state management device according to an embodiment of the present invention.
FIG. 3 is a block diagram illustrating a configuration of a digital broadcast receiving device according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Receiving state management apparatus 2 Terrestrial broadcasting transmission tower 3 Mobile communication base station (A)
4 Mobile communication base station (B)
5 Mobile communication base station (C)
6. Receiver (Digital broadcast receiving device)
9 Communication line 11 Digital broadcast receiving antenna 12 Tuner 13 Digital demodulation unit 14 Signal separation unit 15 Video decoding unit 16 Audio decoding unit 17, 18 Addition unit 19 Video output terminal 20 Audio output terminal 21 Remote control light receiving unit 22 Controller 23 OSD generation unit 24 Voice generating unit 25 Mobile communication antenna 26 Mobile communication unit 27 Memory 31 Network line terminal 32 Communication unit 33 Image, character information, voice memory 34 Controller 35 Reception state management memory 36 Soft module library

Claims (8)

An apparatus for managing a reception state of a digital broadcast,
Communication means for exchanging various information and data with the digital broadcast receiving device;
Means for transmitting information about a receivable channel and a reception state corresponding to the position of the digital broadcast receiving device during communication to the digital broadcast receiving device;
Means for communicating with the plurality of digital broadcast receiving apparatuses and obtaining information on the receiving position and receiving state of each digital broadcast receiving apparatus;
Means for updating the reception state management information using the reception state information obtained from each of the digital broadcast receiving apparatuses. A digital broadcast receiving apparatus for exchanging various information and data with a reception state management apparatus for managing a reception state of a digital broadcast,
Means for communicating with the reception state management device and obtaining information about a receivable channel and a reception state at its own reception point,
Means for transmitting information about a reception state to the reception state management apparatus. Comprising mobile communication means for performing communication by mobile communication,
3. The digital broadcast receiving apparatus according to claim 2, wherein communication with the reception state management apparatus is performed by mobile communication. A means for recognizing the position of the digital broadcast receiving device of the communication partner based on the position of the mobile communication base station with which the digital broadcast receiving device capable of mobile communication is communicating by mobile communication,
2. The reception state management device according to claim 1, wherein the reception state management is performed for each mobile communication base station. By communication, comprising means for transmitting images, text information and audio to the digital broadcast receiving device,
2. The reception state management device according to claim 1, wherein the digital broadcast receiving device is capable of outputting images, character information, and sounds. With means for outputting the image, character information and sound transmitted from the reception state management device to the user,
3. The digital broadcast receiving apparatus according to claim 2, wherein notification of useful information, provision of an advertisement, and the like are performed. A software module for changing the software of the digital broadcast receiving device, comprising means for holding the digital broadcast receiving device corresponding to an area where the digital broadcast receiving device is used,
2. The reception state management device according to claim 1, wherein a desired software module is transmitted to the digital broadcast reception device. Means for obtaining a software module by communicating with the reception state management device;
3. A digital broadcast receiving apparatus according to claim 2, further comprising means for changing various functions by adding or replacing said software module.

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