JP2004080124A - Digital broadcast receiving apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcast receiving apparatus which can provide information suitable for each receiver without user operation. <P>SOLUTION: The digital broadcast receiving apparatus 30 receives a digital broadcast wave, acquires various type information included in the wave, and processes the information. Receiver information is stored in a memory 13. As the receiver information, one or more of type information, screen size information and loading software information is included. The receiver information is read from the memory 13 in response to a request from a browser 16 operating by data broadcast data, the browser 16 automatically selects a file in response to the receiver information, and proposes, for example, an image matched with the screen size of the receiver. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
[Industrial applications]
The present invention relates to a digital broadcast receiving device for receiving digital broadcast.
[0002]
[Prior art]
A digital broadcast receiving device that receives digital broadcasts using satellites and terrestrial waves selects an arbitrary broadcast wave from a plurality of broadcast waves received through a dedicated antenna or a terrestrial antenna with a tuner, and selects the selected broadcast wave. An arbitrary channel is selected from a plurality of channels included in the wave by demultiplex processing, a digital signal of the selected channel is extracted, and a video / audio signal is output by decoding the digital signal.
[0003]
[Problems to be solved by the invention]
By the way, in digital broadcasting, data broadcasting is also realized. In particular, in program-linked data broadcasting, it is possible to present an image such as a product description (product advertisement) on a product such as a home appliance used in a broadcasted program. It has become. However, in this image presentation, for example, when trying to simultaneously display two images, there is no problem when viewing with a large screen size receiver, but when viewing with a small screen size receiver May make the image difficult to see. Further, even if the user of the projector type receiver wants to advertise the product of the home theater equipment developed for it, and the user of the plasma display receiver wants to advertise the product of the home theater equipment developed for it, Product advertising that satisfies such demands has not been realized. On the other hand, by allowing the user (viewer) to select a product advertisement on the data broadcast screen, it is possible to perform a product advertisement corresponding to the user, but this requires the user to perform a selection operation. .
[0004]
The present invention has been made in view of the above circumstances, and has as its object to provide a digital broadcast receiving apparatus capable of providing information suitable for each receiving apparatus without user operation.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a digital broadcast receiving apparatus according to the present invention is a digital broadcast receiving apparatus which receives a digital broadcast wave, and acquires and processes various kinds of information contained therein. Means for selecting information based on the receiving device information of the receiving device when receiving the information selectable according to the receiving device information, and outputting audio and / or video output of the selected information. Performing means.
[0006]
Further, a digital broadcast receiving apparatus of the present invention is a digital broadcast receiving apparatus configured to receive a digital broadcast wave, acquire and process various information included therein, and include a storage unit in which receiving apparatus information is stored, It is characterized in that the receiving device information is provided from the storage means in response to a request from a browser operated by the data broadcast data.
[0007]
With these configurations, the broadcasting station transmits information suitable for each type of receiving apparatus on a digital broadcast wave, and each receiving apparatus automatically selects information suitable for its own apparatus without user operation. Will be displayed on the screen.
[0008]
The receiving device information preferably includes one or more of type information, manufacturer information, screen size information, and installed software information.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 3. Here, a case where a user watches a BS (Broadcasting Satellite) digital broadcast is illustrated. FIG. 1 is a block diagram showing a digital broadcast receiving apparatus 30 of this embodiment, FIG. 2 is an explanatory diagram conceptually showing information selection based on receiving apparatus information, and FIG. It is a flowchart showing the contents of the selection process.
[0010]
The antenna 1 shown in FIG. 1 is arranged outdoors in a predetermined direction, and receives a digital broadcast wave transmitted from a BS. The antenna 1 generally includes a frequency converter, and supplies a received / frequency-converted signal to the BS digital tuner 2.
[0011]
The BS digital tuner 2 extracts a signal of a specific frequency from the received high-frequency digital modulation signal. That is, a process of selecting one from a plurality of transponders of digital broadcasting is performed. The tuner 2 includes a demodulation circuit, a deinterleave circuit, an error correction circuit, and the like, and demodulates the selected digital modulation signal to output a transport stream.
[0012]
A demultiplexer (DEMUX) 3 separates the transport stream into a video stream of MPEG2 (Moving Picture Experts Group2), an audio stream, a PSI / SI (Program Specific Information / Service Information), and data broadcast data. The demultiplexer 3 supplies the video stream and the audio stream to the AV decoder 4, supplies the program information and the like included in the PSI / SI to the CPU 12, and detects data broadcast data and sends the data broadcast to a browser (data broadcast processing unit) 16. Request data processing. As described above, a plurality of channels are multiplexed in the transport stream, and a process for selecting an arbitrary channel from among the channels is performed by selecting an arbitrary channel from the PSI / SI in the transport stream. It becomes possible by extracting data such as which packet ID is multiplexed. Further, the selection of the transport stream (the selection of the transponder) can also be performed based on the PSI / SI information.
[0013]
The AV decoder 4 includes a video decoder that decodes a video stream and an audio decoder that decodes an audio stream. The video decoder decodes the input coded signal to obtain a quantization coefficient and a motion vector, and performs inverse DCT transform, motion compensation control based on the motion vector, and the like. The audio decoder decodes the input coded signal to generate audio data.
[0014]
The video processing circuit 5 receives the video data from the AV decoder 4 and performs D / A conversion to generate a video signal. The audio signal processing circuit 6 receives the audio data output from the AV decoder 4, performs D / A conversion, and generates, for example, a right (R) sound analog signal and a left (L) sound analog signal.
[0015]
The scaler / OSD circuit 11 is a circuit for generating video data based on character information and color information instructed to be output from the browser 16 and the CPU 12, and is provided by the scaler / OSD circuit 11 with an EPG (Electronic Program Guide) based on the aforementioned program information. ) Display, data broadcast display, menu screen display, etc. can be performed.
[0016]
The receiver 8 performs video display using the video signals (R, G, B signals and vertical / horizontal synchronization signals) supplied from the drive circuit 7. Further, the speaker 14 performs audio output based on the audio signal output from the audio processing circuit 6.
[0017]
The remote control transmitter 9 is a transmitter for sending a command to the broadcast receiver 30. When a key (not shown) provided on the remote control transmitter 9 is operated, a signal light (remote control signal) indicating a command corresponding to the key is transmitted from a light emitting unit (not shown). The remote control light receiver 10 receives the signal light, converts the light into an electric signal, and supplies the electric signal to the CPU 12.
[0018]
The memory (RAM, EEPROM, flash memory, etc.) 13 stores information that constitutes a program table, data broadcast data, receiving device information (manufacturer information, model information, screen size information, installed software information, etc.). Is stored. It is assumed that the performance information such as a display method (separate from CRT / plasma / liquid crystal projector, etc.) can be known from the model information. Although a dedicated area and a common use area are set in the memory 13 for each broadcaster, the receiving device information may be stored in the common use area. The receiving device information is stored in the memory 34 in advance by the maker of the receiving device 30. If the receiving device is a set-top box type, the user can input the screen size information of the monitor connected thereto. Good. When the installed software is upgraded by downloading, the receiving device automatically stores the information in the memory.
[0019]
The IC card 15a (for example, a B-CAS card for BS digital broadcasting) stores key information for making payable broadcasts viewable and purchase history information for PPV (pay-per-view) programs to be charged for each program. Store. A CA (Conditional Access) module 15 performs a write process and a read process of various information between the CPU 12 and the IC card 15a.
[0020]
The CPU 12 performs overall control of the digital broadcast receiving apparatus 30. In particular, the CPU 12 executes information selection processing based on the following receiving apparatus information as control according to the present invention.
[0021]
FIG. 2 is an explanatory diagram showing the contents of data broadcast data sent from a broadcasting station and showing an example of a display screen by an information selection process based on the receiving device information in the receiving devices A, B, and C. Note that, as the receiving device information, the receiving device A stores “made by XX Corporation / 24 inch” and the receiving device B stores “made by XX Company / 50 inch” in the memory of each receiving device. . It is assumed that the receiving device information is not stored in the receiving device C.
[0022]
The browser 16 composes the screen based on the description of the BML file which is the data broadcast data. As the BML file, not only the top page but also a plurality of files (in the example of FIG. 2, the image files A, B, C, D, E, etc.) are also fetched at the same time and stored in the memory, and the file is usually read out by a user operation. In the present invention, however, the script information (Script Language) described in the BML file is used to store the information in the receiving device information. The file is automatically selected and presented on the screen. In the example of FIG. 2, for example, for one second, a BML file that describes, as the top page, “the optimal information is selected for this receiver” is displayed, and then the selected file is presented on the screen according to the receiver information. ing. Of course, by performing processing in the BML file on the top page, the top page is immediately displayed with a screen configuration corresponding to the receiving device without being displayed. Note that the browser (data broadcast processing unit) can access the memory by an API (application programming interface) mounted on the receiving device. On the broadcast station side, viewers (reception devices) are divided into predetermined groups according to the manufacturer name, model, screen size information, etc. of the reception devices, and the BML file is described so that the data to be displayed is determined according to the groups. It is assumed that
[0023]
The information selection process based on the receiving device information will be briefly described based on the flowchart of FIG. In response to a presentation request for receiving device information from the browser (data broadcast processing unit), memory access is performed by the API and the receiving device information is read (step S1). It is determined whether or not the screen configuration needs to be changed based on the receiving device information (step S2). If a change is required, a display image is determined based on the read receiver information (step S3). If the screen configuration does not need to be changed, the received basic screen is output without depending on the receiving device information (step S4).
[0024]
The present invention is not limited to the information selection processing on the data broadcast data based on the receiving device information. For example, some commercial (CM) videos inserted between programs are multiplexed and one based on the receiving device information. It is also possible to filter one commercial image by the demultiplexer 3. In addition, as information selection based on manufacturer information, for example, in the case where a home appliance store performs a special sale advertisement for a home theater manufactured by XX and a home theater manufactured by △△, a home theater manufactured by XX may receive An example is considered in which an advertisement is given to the user of the device and a home theater manufactured by the company wants to advertise to the user of the receiving device manufactured by the company. An example in which advertisement is desired for each user of a receiving device of a corresponding type is considered. As information selection based on installed software information, an application product corresponding to installed software is to be advertised for each user of the receiving device equipped with the corresponding software. Examples are possible.
[0025]
【The invention's effect】
As described above, according to the present invention, by transmitting information suitable for each type of receiving apparatus on a digital broadcast wave on the broadcast station side, each receiving apparatus automatically selects information suitable for its own apparatus. However, there is an effect that the selection information is presented on the screen without any user operation.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a digital broadcast receiving apparatus according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing an outline of an information selection process on data broadcast data based on receiving device information according to the embodiment of the present invention.
FIG. 3 is a flowchart showing a process according to the embodiment of the present invention.
[Explanation of symbols]
1 antenna 2 BS digital tuner 3 demultiplexer (DEMUX)
4 AV decoder 11 OSD circuit 12 CPU
13 Memory 15 CA module 15a IC card

Claims (3)

A digital broadcast receiving apparatus for receiving a digital broadcast wave and acquiring and processing various kinds of information included in the digital broadcast wave, receiving a storage unit storing the receiver information, and receiving selectable information according to the receiver information. A digital broadcast receiving apparatus comprising: means for selecting information based on the receiving apparatus information of the receiving apparatus when the receiving is performed; and means for outputting audio and / or video of the selected information. A digital broadcast receiving apparatus which receives a digital broadcast wave, acquires and processes various information included in the digital broadcast wave, includes a storage unit in which the receiver information is stored, and receives a request from a browser operated by data broadcast data. A digital broadcast receiving apparatus configured to provide receiving apparatus information from storage means in response to the request. 3. The digital broadcast receiving apparatus according to claim 1, wherein the receiving apparatus information includes at least one of type information, manufacturer information, screen size information, and installed software information. .

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