JPH1079935A - Digital satellite broadcasting receiving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To comfortably attain program selection by using an EPG(electronic program guide) for a ground wave TV broadcasting in addition to an EPG for digital satellite broadcasting. SOLUTION: A digital satellite broadcasting electric wave is received by a digital satellite broadcasting tuner 1, demodulated by a signal processing circuit 3, and supplied to a section filter 4 and a packet filter 7. The filter 7 extracts packet data including each channel video signal, and supplies the data to an MPEG2 decoder 8. The decoder 8 outputs the video signal. On the other hand, a section filter 4 extracts each data from the output of the signal processing circuit 3, and supplies the data to an SDT, EIT decoder 5. The decoder 5 outputs the picture signal of an EPG for digital satellite broadcasting. The both picture signals are added 10, and displayed on the screen. In this case, a radio wave for ground wave TV broadcasting is received and demodulated by a ground wave TV broadcasting tuner 13, converted into a video signal, transmitted through a changeover switch 14, added by the adder 10, and displayed on the screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital satellite broadcast receiving apparatus, and more particularly to a digital satellite broadcast receiving apparatus for receiving digital satellite broadcast and terrestrial broadcast electronic program guide (EPG) data.

[0002]

2. Description of the Related Art At present, viewers of terrestrial television (TV) broadcasts obtain TV program information from newspapers, program information magazines, and the like published as print media, and select and view desired programs. . On the other hand, urban CATV and digital satellite broadcasting that has recently started service are multi-channel (several dozens to hundreds and dozens of channels) broadcasts as compared with the related art. In the latter case, in particular, the use of image compression technology has the advantage that a program of 100 or more channels from one satellite can be broadcast over a wide range such as the entire United States and the entire region of Japan on the same radio wave. In this case, due to the increase in the number of channels, the program table on a print medium as described above is used on the day,
The next day, searching for a program one week later and selecting a channel and making a recording reservation are very complicated for many viewers.
Viewers can interactively search and select programs on the TV screen in the form of ser Interface (hereinafter referred to as GUI).

FIG. 10 is a basic configuration diagram of an example of a digital satellite broadcast transmitting and receiving system including a conventional digital satellite broadcast receiving apparatus including such transmission and reception of EPG data. In FIG. 10, a digital satellite broadcast wave from a communication satellite CS is received by a parabolic antenna PA and supplied to a receiving device IRD '. The receiving device IRD 'processes the received signal and supplies it to the terrestrial TV broadcast receiver TV'. The terrestrial TV broadcast radio wave from the terrestrial TV broadcast base station antenna TTA is received by the Yagi antenna YA and supplied to the terrestrial TV broadcast receiver TV '. The terrestrial TV broadcast receiver TV 'can view both digital satellite broadcast video and terrestrial TV broadcast video via the receiving device IRD'. Also, a terrestrial TV broadcast receiver remote control transmitter RC1 can remotely control channel switching and the like of terrestrial TV broadcasts, and a digital satellite broadcast receiver IRD 'remote control transmitter RC2 can control digital satellite broadcasts. Can be remotely controlled.

FIG. 11 is a block diagram showing a configuration example of the digital satellite broadcast receiver IRD 'of FIG.
In FIG. 11, 1 is a digital satellite broadcast tuner,
2 is a frequency selection circuit, 3 is an AQPSK (Quadrature
Signal processing circuit including PSK) demodulation, analog / digital conversion (ADC), FEC (Forward Error Correction) error correction, etc., 4 is a section filter, 5 is SD
T (Service Description Table) and EIT (Event
Information Table) A decoder, 6 is a memory, 7 is a packet filter, 8 is an MPEG2 decoder, 9 is a memory, 10 is an adder, and 16 is a digital / analog converter (DAC). In the above configuration, the digital satellite broadcast wave is received by the digital satellite broadcast tuner 1, demodulated, A / D converted, and error corrected by the signal processing circuit 3, and the output of the signal processing circuit 3 is supplied to the section filter 4 and the packet filter 7. You. Packet filter 7
Extracts the packet data including the video signal of each channel of the digital satellite broadcasting in the MPEG2 format from the output of the signal processing circuit 3 and supplies the packet data to the MPEG2 decoder 8. The MPEG2 decoder 8 decodes the packet data from the packet filter 7 and decodes the video signal (eg, NTS
C signal).

On the other hand, the section filter 4 outputs a PAT (Program Association Table) from the output of the signal processing circuit 3.
), NIT (Network Information Table), PMT
(Program Map Table), SDT (Service Descript
ion Table), EIT (Event Information Table)
Are extracted and supplied to the SDT and EIT decoder 5. The SDT and EIT decoder 5 decodes the SDT and EIT data extracted by the section filter 4 and outputs a digital satellite broadcast EPG image signal (for example, an NTSC signal). The video signal from the MPEG2 decoder 8 and the digital satellite broadcast EPG image signal from the SDT and EIT decoders 5 are added by an adder 10, and a terrestrial TV broadcast receiver TV ′ is output via a DAC 16.
(FIG. 10) and displayed on the screen. If the user selects a channel number in the program list displayed on the screen by controlling the cursor with the remote control transmitter RC or the like, the program is switched to the program specified by the data.

Next, a conventional EPG for digital satellite broadcasting will be described.
Will be described with reference to the flowchart of FIG. First, in step S31, for example, the remote control transmitter R for the digital satellite broadcast receiver IRD '
When an EPG display command is input using a specific key of the C2 key, in step S32, the SDT data is received and decoded, the presence or absence of a program table is confirmed, and a service name is obtained (own / other stream). Next, in step S33, the EIT data is received, and information such as a program name, a start and end time, a category, and a broadcast time change in each service is obtained (own and other streams). Next, in step S34, EI
The T data is decoded to obtain an on-screen display (OSD) image signal of a digital satellite broadcast EPG. Next, in step S35, an on-screen display (OSD) image signal of a digital satellite broadcast program table is transmitted from the digital satellite broadcast receiver IRD 'to the terrestrial wave T.
The program is supplied to the V broadcast receiver TV 'and a program table is displayed on the screen. This program table includes dates, times, service names, program names, and the like.

[0007]

However, when a viewer selects and switches between a terrestrial TV broadcast and a digital satellite broadcast program with one television receiver TV ', the digital satellite broadcast uses the EPG. Remote control transmitter RC
2 can be selected comfortably by operating button instructions, but when watching terrestrial TV broadcasting, the program must be selected by relying on a print medium, and equipment in an environment where new technology and conventional technology are mixed Operation will be forced.

In digital satellite broadcasting, reservation for program viewing can be registered interactively with the EPG screen.
In the case of the V broadcast, since there is no EPG in which each broadcasting station (channel) is integrated, a start, an end time and a channel number conventionally used in a VTR are input, or a so-called search from a print medium is performed. There is a need to perform operations across devices, such as a method of inputting a G code number and an input by a scanner using a bar code.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems by using a terrestrial TV set in addition to an EPG for digital satellite broadcasting.
An object of the present invention is to provide a digital satellite broadcast receiving apparatus that can also use a broadcast EPG.

[0010]

According to a first aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus capable of receiving digital satellite broadcast radio waves, and capable of extracting EPG data of terrestrial broadcast. Things.

According to a second aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus comprising: a first tuner for receiving a digital satellite broadcast wave; a signal processing circuit for performing signal processing on an output of the first tuner; First to extract EPG data for digital satellite broadcasting from the output of the signal processing circuit
Filter means, a first decoding means for decoding the output of the first filter means and outputting an image signal of a digital satellite broadcast program guide, and a second decoding means for extracting video signal data from the output of the signal processing circuit Filter means, a second decoding means for decoding the output of the second filter means and outputting a video signal, and a third means for extracting terrestrial broadcast EPG data from the output of the second filter means. Filter means, and first switching means for switching the output of the second filter means and the output of the third filter means and supplying the output to the first decoding means.

According to a third aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus according to the second aspect, wherein the third filter means controls the area ID signal by controlling the area ID signal. 2 extracts only the terrestrial broadcast EPG data related to the area ID signal from the output of the second filter means.

According to a fourth aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus according to the second aspect, further comprising an output of the first decoding means and an output of the second decoding means. Monitor means supplied, memory means for storing schematic national map or place name data, screen display means for reading the data stored in the memory means and supplying the data to the monitor means, and display on the screen of the monitor means Designation means for designating the place of residence of the viewer from the general nationwide map or the name of the place, wherein the third filter means receives the output of the second filter means in response to a designation signal of the designation means. Only the terrestrial broadcast EPG data related to the designated signal is extracted.

According to a fifth aspect of the present invention, in the digital satellite broadcast receiving apparatus according to the second aspect, the digital satellite broadcast receiving apparatus further includes an area code data of a telephone number of an area where the viewer resides. An input means for inputting, wherein the third filter means extracts only terrestrial broadcast EPG data associated with the area code data from an output of the second filter means, based on the area code data. It is.

According to a sixth aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus according to the second aspect, wherein the terrestrial broadcast EPG data transmitted from the digital satellite broadcast wave is transmitted to the digital satellite broadcast wave. A conditional access ID code according to the area where each viewer resides is added, and the conditional access ID code and an ID unique to the receiver are added.
A collating unit for collating with the D code, wherein the third filter unit includes a collating unit for collating the second code with the collation data of the collating unit.
And extracting only the terrestrial broadcast EPG data related to the collation data from the output of the filter means.

According to a seventh aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus comprising: a first tuner for receiving a digital satellite broadcast wave; and a signal processing circuit for performing signal processing on an output of the first tuner. A first filter for extracting digital satellite broadcast EPG data from an output of the signal processing circuit; and a first filter for decoding an output of the first filter and outputting an image signal of a digital satellite broadcast program table. Decoding means; second filter means for extracting video signal data from the output of the signal processing circuit; second decoding means for decoding the output of the second filter means to output a video signal; A third filter for extracting terrestrial broadcast EPG data from an output of the second filter, and an output of the second filter and the third filter. Wherein switching the output of the motor means first
A second tuner for receiving a terrestrial broadcast wave, and a second tuner for switching and outputting the output of the second tuner and the output of the second decoding means. And switching means.

In the digital satellite broadcast receiving apparatus according to the present invention, the third filter means may control the area ID signal by controlling the area ID signal. And extracting only the terrestrial broadcast EPG data related to the area ID signal from the output of the second filter means.

According to a ninth aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus according to the seventh aspect, further comprising an output of the first decoding means and the second decoding means. Monitor means supplied, memory means for storing schematic national map or place name data, screen display means for reading the data stored in the memory means and supplying the data to the monitor means, and display on the screen of the monitor means Designation means for designating the place of residence of the viewer from the general nationwide map or the name of the place, wherein the third filter means receives the output of the second filter means in response to a designation signal of the designation means. Only the terrestrial broadcast EPG data related to the designated signal is extracted.

According to a tenth aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus according to the seventh aspect, further comprising an area code data of a telephone number of an area where the viewer resides. An input means for inputting, wherein the third filter means extracts only terrestrial broadcast EPG data associated with the area code data from an output of the second filter means, based on the area code data. It is.

According to the present invention, there is provided a digital satellite broadcast receiving apparatus according to the present invention, wherein the terrestrial broadcast EPG data transmitted from the digital satellite broadcast radio wave is provided in the digital satellite broadcast receiving apparatus. A limited reception ID code according to the residence area of each viewer is added, and the matching means includes matching means for matching the limited reception ID code with an ID code unique to a receiver. According to the collation data of the means, only the EPG data for terrestrial broadcasting associated with the collation data is extracted from the output of the second filter means.

According to a twelfth aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus according to the seventh aspect, further comprising a second terrestrial broadcast radio wave receiving apparatus.
And the output of the second tuner and the second
And second switching means for switching and outputting the output of the decoding means.

According to a thirteenth aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus for receiving a digital satellite broadcast wave, a signal processing circuit for processing an output of the tuner, A section filter for extracting table data of program sequence information from an output of the processing circuit; and decoding of SDT and EIT data from the output of the section filter to an EPG.
An SDT and EIT decoder for outputting a program guide image signal, an output of the signal processing circuit, a packet filter for outputting packet data based on control of a target PID signal from the section filter, and an output of the packet filter MPEG2 decoder that decodes the data and outputs a video signal; an output of the packet filter; a data filter that extracts terrestrial broadcast EPG data; and an output of the data filter and the output of the section filter that are switched to output the SDT. And a first changeover switch to be supplied to the EIT decoder.

According to a fourteenth aspect of the present invention, there is provided a digital satellite broadcast receiving apparatus according to the thirteenth aspect, further comprising: a terrestrial broadcast tuner for receiving a terrestrial broadcast wave; 2nd output for switching between tuner output and MPEG2 decoder output
And a changeover switch.

[0024]

The terrestrial EPG data is transmitted as one of the digital satellite broadcast service data, and the terrestrial broadcast EPG data is received by the digital satellite broadcast receiver.
The monitor television can display both the digital satellite broadcast EPG and the terrestrial broadcast EPG.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a digital satellite broadcast receiving apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a basic configuration diagram of a digital satellite broadcast transmitting / receiving system including a digital satellite broadcast receiving apparatus according to the present invention. In FIG. 1, a digital satellite broadcast wave from a communication satellite CS is received by a parabolic antenna PA, and a terrestrial wave T
The terrestrial TV broadcast wave from the V broadcast base station antenna TTA is received by the Yagi antenna YA, and each received signal is supplied to the receiver IRD. The receiving device IRD processes each received signal and supplies it to the monitor television TV. The monitor television TV can watch both service images of digital satellite broadcasting and images of channels of terrestrial TV broadcasting. The operation surface of the remote control transmitter RC for the digital satellite broadcasting receiver IRD includes satellite program. A key K1 for calling a table and a key K2 for calling a terrestrial TV broadcast program table are provided.

In the above basic configuration, the current digital satellite broadcast format is transmitted by transmitting the data of the EPG for terrestrial TV broadcast from the communication satellite CS as one satellite broadcast service (consisting of a plurality of events). Easy for terrestrial TV broadcast EP without change
G as in the case of digital satellite broadcast EPG
It can be displayed on the television receiver TV via D and the channel can be selected. Here, the EPG data for digital satellite broadcasting is multiplexed into a transport stream (hereinafter referred to as TS) according to the MPEG2 multiplexing standard, and is transmitted from a communication satellite CS along with a program along with a digital satellite broadcasting radio wave. EPG for digital satellite broadcasting
Data is stored in PSI (Program Specific Information) (PSI) in the multiplex protocol in the MPEG2 TS.
Are all in section format), and the SDT and EIT data constituting the EPG program guide are transmitted in section format.

FIG. 3 is a diagram showing a multiplexing protocol in the MPEG2 TS, FIG. 4 is a diagram showing a data structure (section format) of SDT, FIG. 5 is a diagram showing a data structure (section format) of EIT, and FIG. Diagram showing format,
FIG. 7 is a diagram showing a PES packet format (video and audio format), and FIG. 8 is a diagram showing a structure of a transport stream packet (TSP). Each PID (packet ID: packet identifier) is assigned to this TSP. Can be On the other hand, according to the present invention, the terrestrial TV broadcast EPG has the same format as the digital satellite broadcast EPG, and as one of the digital satellite broadcast services, FIG.
Transmitted by the data application. The transmission stream type in this case is a section format (P
It is possible to select a PES format (the same format as video and audio) and a PES format (the same format as video and audio). Therefore, by extracting and decoding only the terrestrial TV broadcast EPG data, the terrestrial broadcast EPG can be displayed in the same manner as the digital satellite broadcast EPG.

FIG. 2 is a block diagram showing an embodiment of a digital satellite broadcast receiving apparatus according to the present invention used in the digital satellite broadcast transmitting / receiving system of FIG. In FIG. 2, 1 is a digital satellite broadcast tuner, 2 is a frequency selection circuit, 3 is a signal processing circuit including QPSK (Quadrature PSK) demodulation and FEC (Forward Error Correction) error correction, 4 is a section filter, 5 is S
DT (Service Description Table) and EIT (Eve
nt Information Table) Decoder, 6 is memory, 7 is packet filter, 8 is MPEG2 decoder, 9 is memory, 10 is adder, 11 is data filter, 12 is changeover switch, 13 is terrestrial TV broadcast tuner, 14 is changeover The switch 15 is an analog / digital converter (AD
C) and 16 are digital / analog converters (DAC).

In the above configuration, the digital satellite broadcast radio wave is received by the digital satellite broadcast tuner 1, demodulated and error-corrected by the signal processing circuit 3, and
Is supplied to the section filter 4 and the packet filter 7. The packet filter 7 extracts packet data including each channel video signal of digital satellite broadcasting in the MPEG2 format from the output of the signal processing circuit 3 and supplies the packet data to the MPEG2 decoder 8. The MPEG2 decoder 8 decodes the packet data from the packet filter 7 and outputs a video signal (for example, an NTSC signal).

On the other hand, the section filter 4 outputs a PAT (Program Association Table) from the output of the signal processing circuit 3.
), NIT (Network Information Table), PMT
(Program Map Table), SDT (Service Descript
ion Table), EIT (Event Information Table)
Are extracted and the SDT is extracted via the changeover switch 12.
And the EIT decoder 5. The SDT and EIT decoder 5 outputs the SDT extracted by the section filter 4.
And decodes the EIT data and outputs an image signal (for example, an NTSC signal) of a digital satellite broadcast EPG.
Video signal from MPEG2 decoder 8, SDT and EI
The image signal of the digital satellite broadcast EPG from the T decoder 5 is added by the adder 10, supplied to the monitor television TV (FIG. 1), and displayed on the screen.

On the other hand, the digital satellite broadcast tuner 1,
From the data supplied to the section filter 4 via the signal processing circuit 3, the service corresponding to the terrestrial TV broadcast EPG data is transmitted from the PAT and PMT to the ES PI.
D is detected. Based on the detected PID, only the terrestrial TV broadcast EPG data is extracted from the data supplied to the data filter 11 via the signal processing circuit 3 and the packet filter 7, and the SDT and EIT are switched via the changeover switch 12. By inputting to the decoder 5, the satellite broadcast E
Decoding is performed in the same manner as the PG data, and an on-screen display (OSD) image signal is obtained.

At this time, the terrestrial TV broadcast wave is received and demodulated by the terrestrial broadcast tuner 13 to become a video signal (eg, NTSC signal), which is supplied to the changeover switch 14 via the ADC 15. Therefore, by operating the key K2 or the like for calling the terrestrial TV broadcast program table in the remote control transmitter RC of FIG.
The video signal from the EG2 decoder 8 or the terrestrial broadcast tuner 13 and the terrestrial broadcast EPG image signal from the SDT and EIT decoder 5 are added by the adder 10 and
It is supplied to the monitor television TV (FIG. 1) via the AC 16 and displayed on the screen.

Next, the operation of displaying the terrestrial broadcast EPG will be described with reference to the flowchart of FIG. First, in step S1, a terrestrial broadcast EPG display command is input, for example, by operating a key K2 for calling a terrestrial TV broadcast program table in the remote control transmitter RC of FIG. Transmitter R
When the user-specified ID is input by operating the specific key of C, and subsequently, in step S3, the desired channel number is input, in step S4, the PAT of the transponder currently being received is received. Next, step S5
Then, the channel number is searched in the PAT. If the number is found, the process proceeds to step S8. If not, the process proceeds to step S6.
Proceed to. In step S6, after the NIT is received and the transponder including the channel number is recognized, the receiving transponder is changed.

Next, the process proceeds to step S7, where the PAT of the newly received transponder is received. Next, in step S8, the PMT is received from the information in the PAT, and the process proceeds to step S9. In step S9, the packet of the channel is separated and extracted from the information in the PMT. Next, the process proceeds to step S10, where it is determined whether the area ID in the section data matches the ID specified by the user. If no, the process returns to step S9, and if yes, the process proceeds to step S11. In step S11, the ES is decoded to obtain an image signal (NTSC signal) of a terrestrial broadcast EPG. Next, in step S12, the terrestrial broadcast EPG is displayed on the monitor television.

[0035]

[Embodiment] As another embodiment of the present invention, as an application example in Japan, terrestrial broadcasting EPG data covering all terrestrial TV broadcasting programs for each region as a national version is transmitted from a communication satellite CS. The viewer selects and selects only a receivable channel (broadcasting station name) from the received terrestrial broadcasting EPG data in the inhabited area and registers it in the memory of the digital satellite broadcast receiving apparatus of FIG. Thus, after registration, only necessary information can be displayed.

Further, as still another embodiment of the present invention,
Software for specifying a receivable channel by displaying an approximate national map or a place name on a monitor-TV screen and designating a residence of a viewer from the map can be provided.

As still another embodiment of the present invention,
By entering the area code of the telephone number of the viewer's residence, software for specifying a receivable channel can be provided.

As still another embodiment of the present invention,
As described above, the terrestrial broadcast EPG transmitted from the communication satellite is not selected by the viewer from the national version of the EPG information.
Limited access data I according to the location of each viewer
A D code (an ID code added when a fee is paid for a program of a pay broadcast) is added, and a limited reception ID added to the received terrestrial broadcast EPG data by a digital satellite broadcast receiver. The code can be collated with the ID code unique to the receiving device and displayed.

As described above, terrestrial TV broadcasting is a medium established over a long history, does not compete with digital satellite broadcasting, and it is convenient for viewers to take advantage of each other. This makes it possible for viewers to selectively use these programs using the same format of digital satellite broadcast EPG and terrestrial broadcast EPG, thereby providing convenience.

The introduction of digital satellite broadcasting has been started or planned in various parts of the world, both in Japan and overseas, and can be applied to all of them.

The following problems frequently occurring in reservation recording in terrestrial TV broadcasting can be solved. That is, when a program is selected from the information of the print medium and a recording reservation or a viewing start reservation is made, for example, the start and end times of the reserved program are changed in conjunction with a change such as an extension of a sports broadcast time. In particular, in the case of recording reservation, since recording is started before a desired program starts, when the desired program is started, the recording medium is consumed, and the recording is ended without recording the entire program. An accident occurs.

In the program viewing start time reservation system using the EPG information, if the program broadcast start time is changed due to the situation of the broadcasting station, if the change information is transmitted by the broadcast wave, the reservation is made. It is possible to check on software whether or not the reserved program is started at the time when the program has been started, and to perform an operation according to the latest information.

Further, in a program viewing start time reservation system using EPG information, by inputting the purpose as information at the time of reservation, the operation contents when the change of the broadcast start time is detected are as follows. In addition to simply following the change time, an operation suitable for the purpose can be performed. For example, (1) When the reservation purpose is recording, the start and end times are activated according to the latest information. (2) In the case of starting viewing without recording, when the reserved time comes, text information indicating that the start time of the program has been changed is displayed on the screen or notified by sound. (3) If the purpose of the reservation is an alarm clock, the screen and sound are activated on time regardless of the change in the program contents. Such software that can selectively register an operation mode according to the purpose of the user at the time of reservation is configured. This method is an effective solution not only for terrestrial waves but also for digital satellite broadcasting.

In the description of the configuration and operation of each of the above-described embodiments, the EPG in an unreceivable area is requested by the viewer.
Can also be arbitrarily selected to be displayed. (For example, it is possible to obtain merits such as obtaining program information of a remote place and requesting a friend who lives in the area to make a video recording reservation.)

[0045]

According to the present invention, there is provided a digital satellite broadcast receiving apparatus which can selectively use both the digital satellite broadcast EPG and the terrestrial broadcast EPG in the same tuning operation procedure.

[Brief description of the drawings]

FIG. 1 is a basic configuration diagram of a digital satellite broadcast transmitting / receiving system including a digital satellite broadcast receiving device according to the present invention.

FIG. 2 is a block diagram showing one embodiment of a digital satellite broadcast receiving apparatus according to the present invention used in the digital satellite broadcast transmitting / receiving system of FIG. 1;

FIG. 3 is a diagram showing a multiplex protocol in an MPEG2 TS.

FIG. 4 is a diagram showing a data configuration (section format) of an SDT.

FIG. 5 is a diagram showing a data configuration (section format) of an EIT.

FIG. 6 is a diagram showing a section format.

FIG. 7 is a diagram showing a PES packet format (video and audio formats).

FIG. 8: Transport stream packet (TSP)
FIG. 3 is a diagram showing the structure of FIG.

FIG. 9 is a flowchart illustrating an operation of displaying a terrestrial broadcast EPG.

FIG. 10 is a basic configuration diagram of an example of a digital satellite broadcast transmitting / receiving system including a conventional digital satellite broadcast receiving device.

11 is a block diagram showing an example of a digital satellite broadcast receiving device used in the digital satellite broadcast transmitting / receiving system of FIG.

FIG. 12 is a flowchart illustrating an operation of displaying a digital satellite broadcast EPG.

[Explanation of symbols]

 Reference Signs List 1 digital satellite broadcast tuner 2 frequency selection circuit 3 signal processing circuit 4 section filter 5 SDT and EIT decoder 6 memory 7 packet filter 8 MPEG2 decoder 9 memory 10 adder 11 data filter 12 changeover switch 13 terrestrial broadcast tuner 14 changeover switch 15 ADC 16 DAC

Claims (14)

[Claims] 1. A receiving apparatus capable of receiving digital satellite broadcasting waves, wherein the receiving apparatus is capable of extracting EPG data of terrestrial broadcasting. 2. A first method for receiving digital satellite broadcast radio waves.
, A signal processing circuit for performing signal processing on an output of the first tuner, first filter means for extracting digital satellite broadcast EPG data from an output of the signal processing circuit, and a first filter means. First decoding means for decoding an output to output an image signal of a digital satellite broadcast EPG, second filtering means for extracting video signal data from the output of the signal processing circuit, and output of the second filtering means To decode the video signal and output the video signal
Decoding means, third filter means for extracting terrestrial broadcast EPG data from the output of the second filter means, and switching between the output of the second filter means and the output of the third filter means. A digital satellite broadcast receiving apparatus, comprising: first switching means for supplying to the first decoding means. 3. The digital satellite broadcast receiving apparatus according to claim 2, wherein the third filter means controls the area ID signal to output a terrestrial broadcast signal associated with the area ID signal from the output of the second filter means. A digital satellite broadcast receiving apparatus for extracting only EPG data for use. 4. The digital satellite broadcast receiving apparatus according to claim 2, further comprising: a monitor to which outputs of the first decoding means and the second decoding means are supplied; and a memory for storing general national map or place name data. Means, a screen display means for reading the data stored in the memory means and supplying the data to the monitor means, and a viewer's place of residence from a general national map or place names displayed on the screen of the monitor means. Specifying means for specifying, wherein the third filter means extracts only the terrestrial broadcast EPG data associated with the specified signal from the output of the second filter means according to the specified signal of the specified means. A digital satellite broadcast receiver characterized by the above-mentioned. 5. The digital satellite broadcast receiving apparatus according to claim 2, further comprising input means for inputting area code data of a telephone number of an area where the viewer resides, wherein said third filter means comprises: According to the outside number data, the second
A digital satellite broadcast receiving apparatus for extracting only terrestrial broadcast EPG data related to the area code data from the output of the filter means. 6. A digital satellite broadcast receiving apparatus according to claim 2, wherein a terrestrial broadcast EPG data transmitted from the digital satellite broadcast wave is provided with a conditional access ID code corresponding to an area where each viewer lives. And a collating means for collating the conditional access ID code with an ID code unique to a receiver, wherein the third filter means uses the collation data of the collating means to perform the collation from the output of the second filter means. EPG for terrestrial broadcasting related to data
A digital satellite broadcast receiving apparatus for extracting only data. 7. A first method for receiving digital satellite broadcast radio waves.
, A signal processing circuit for performing signal processing on an output of the first tuner, first filter means for extracting digital satellite broadcast EPG data from an output of the signal processing circuit, and a first filter means. First decoding means for decoding an output to output an image signal of a digital satellite broadcast program guide; second filtering means for extracting video signal data from the output of the signal processing circuit; The second to decode the output and output the video signal
Decoding means, third filter means for extracting terrestrial broadcast EPG data from the output of the second filter means, and switching between the output of the second filter means and the output of the third filter means. First switching means for supplying the first decoding means, a second tuner for receiving terrestrial broadcast waves, and switching between the output of the second tuner and the output of the second decoding means for output. A digital satellite broadcast receiving apparatus comprising: a second switching unit. 8. The digital satellite broadcast receiving apparatus according to claim 7, wherein the third filter means controls a regional ID signal to output a terrestrial broadcast signal associated with the regional ID signal from an output of the second filter means. A digital satellite broadcast receiving apparatus for extracting only EPG data for use. 9. The digital satellite broadcast receiving apparatus according to claim 7, further comprising a monitor to which outputs of the first decoding means and the second decoding means are supplied, and a memory for storing general national map or place name data. Means, a screen display means for reading the data stored in the memory means and supplying the data to the monitor means, and a viewer's place of residence from a general national map or place names displayed on the screen of the monitor means. Specifying means for specifying, wherein the third filter means extracts only terrestrial broadcast EPG data associated with the specified signal from the output of the second filter means, based on the specified signal of the specified means. A digital satellite broadcast receiver characterized by the above-mentioned. 10. The digital satellite broadcast receiving apparatus according to claim 7, further comprising input means for inputting area code data of a telephone number of an area where the viewer lives.
Wherein the filter means extracts only the terrestrial broadcast EPG data associated with the area code data from the output of the second filter means, based on the area code data. 11. A digital satellite broadcast receiving apparatus according to claim 7, wherein a terrestrial broadcast EPG data transmitted from the digital satellite broadcast wave is provided with a conditional access ID code corresponding to an area where each viewer lives. And a collating means for collating the conditional access ID code with an ID code unique to a receiver, wherein the third filter means uses the collation data of the collating means to perform the collation from the output of the second filter means. EP for terrestrial broadcasting related to data
A digital satellite broadcast receiving apparatus for extracting only G data. 12. The receiving device according to claim 7, further comprising: a second tuner for receiving a terrestrial broadcast wave;
A digital satellite broadcast receiving apparatus including: a second switching unit that switches and outputs the output of the second tuner and the output of the second decoding unit. 13. A digital satellite broadcast tuner for receiving a digital satellite broadcast wave, a signal processing circuit for processing the output of the tuner, a section filter for extracting table data of program sequence information from the output of the signal processing circuit. And an SDT and EIT decoder for decoding SDT and EIT data from the output of the section filter and outputting an EPG program guide image signal, and an output of the signal processing circuit, and controlling a target PID signal from the section filter. A packet filter that outputs packet data based on the packet filter, an MPEG2 decoder that decodes the output of the packet filter and outputs a video signal, and a data filter that receives the output of the packet filter and extracts terrestrial broadcast EPG data. The output of the data filter and And a first switch for switching the output of the section filter and supplying the output to the SDT and EIT decoders. 14. The receiving device according to claim 13, wherein
Further, a digital satellite broadcast receiving apparatus including a terrestrial broadcast tuner for receiving terrestrial broadcast radio waves, and a second switch for switching between the output of the terrestrial broadcast tuner and the output of the MPEG2 decoder.