JP2001217734A - Device and method for receiving program data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent uncomfortable feelings from being applied to a user by providing a power-on state in the middle of a program when setting power-on time related to an ON timer function. SOLUTION: It is decided whether the EPG information of a program (program A) corresponding to the set power-on time on the same receiving channel as time of power OFF is held on a storage medium or not and when the EPG information is not held, the EPG information is extracted from broadcasting data and stored on the storage medium (ST1-ST3). While referring to the EPG information of the program A, set power-on time To is compared with starting time Ta of the program A (ST4). When the set power-on time Tb is later than the starting time Ta of the program A and that power-on time Tb corresponds to the middle of the program A, the set power-on time Tb is changed to the starting time Ta of the program A. Thus, the state of power-on is not provided in the middle of the program A and the state of power-on is provided at the starting time Ta of the program.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a program data receiving apparatus and a program receiving method suitable for use in, for example, a digital satellite broadcast receiver. Specifically, when the set power-on time falls in the middle of a predetermined program corresponding to the power-on time, the set power-on time is changed to the start time of the predetermined program, so that the power is turned on in the middle of the program. The present invention relates to a program data receiving device or the like that attempts to prevent a user from feeling uncomfortable when turned on. Also, when the set power-off time falls in the middle of a predetermined program that is currently being viewed, the set power-off time is changed to the end time of the predetermined program, thereby turning off the power in the middle of the program. Thus, the present invention relates to a program data receiving device or the like which attempts to prevent the user from feeling uncomfortable.

[0002]

2. Description of the Related Art In digital satellite broadcasting, programs of many channels (programs) are transmitted in a time-division manner in the same frequency band. In a digital satellite broadcast receiver, program data of a predetermined channel selected by a user is extracted from a received broadcast signal, and an image of the predetermined channel is displayed and sound is output.

Conventionally, as the above-mentioned digital satellite broadcast receiver, a receiver having an on-timer function and an off-timer function has been proposed. The on-timer function automatically changes the power-off state to the power-on state at the power-on time set by the user. The off-timer function automatically changes the power-on state to the power-off state at a power-off time set by the user.

[0004]

By the way, when setting the power-on time and the power-off time described above, there are two cases: setting the time at which the power is turned on or off (XX hours and XX minutes); Time before turning on or off (after XX minutes)
May be set. When the power-on time or power-off time set in this way falls in the middle of a program,
The power is turned on or off during the program, which is unpleasant for the user.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a program data receiving apparatus and the like which can prevent a user from turning on or off during a program and giving the user uncomfortable feeling.

[0006]

According to the present invention, there is provided a program data receiving apparatus for selecting a receiving channel, and extracting program data of the receiving channel selected by the channel selecting means from a received broadcast signal. Data extracting means, information extracting means for extracting program guide information from a received broadcast signal, information storing means for storing the program guide information extracted by the information extracting means in a storage medium, and setting a power-on time. An on-time setting means for turning on the power from a power-off state at a set power-on time and controlling the data extracting means to extract program data on the same reception channel as when the power was off. Control means, corresponding to the set power-on time on the same reception channel as the power-off time stored in the storage medium Time condition determining means for determining whether or not the set power-on time falls in the middle of the predetermined program with reference to the program guide information of the predetermined program. And a set time changing means for changing the set power-on time to the start time of the predetermined program when it is determined that the condition is satisfied.

In the program data receiving method according to the present invention, a first step of selecting a receiving channel and a second step of extracting program data of the receiving channel selected in the first step from a received broadcast signal are provided. And a third step of extracting program guide information from the received broadcast signal.
A fourth step of storing the program guide information extracted in the step of storing in the storage medium, a fifth step of setting a power-on time, and a power-on state from a power-off state at the set power-on time. A sixth step of controlling to extract program data in the same reception channel as when the power is turned off from the received broadcast signal, and the same reception channel stored in the storage medium when the power is turned off. Referring to the program guide information of the predetermined program corresponding to the set power-on time, it is determined whether or not the condition that the set power-on time falls in the middle of the predetermined program is satisfied. Step 7 and an eighth step of changing the set power-on time to the start time of the predetermined program when it is determined that the condition is satisfied in the seventh step. It is intended.

In the present invention, program data of a reception channel selected by a user is extracted from a received broadcast signal. For example, image display and audio output are performed using the extracted program data of the reception channel, and the program data of the reception channel is recorded on a recording medium. Further, program guide information is extracted from the received broadcast signal and stored in a storage medium. At power on,
The same reception channel as when the power is turned off is selected. When the power-on time set by the user in relation to the on-timer function falls in the middle of a predetermined program corresponding to the power-on time, the set power-on time is changed to the start time of the predetermined program. The power is turned on. This prevents the power from being turned on during the program and giving the user discomfort.

A program data receiving apparatus according to the present invention includes a channel selecting means for selecting a receiving channel, and a data extracting means for extracting program data of the receiving channel selected by the channel selecting means from a received broadcast signal. Information extracting means for extracting program guide information from a received broadcast signal, information storing means for storing the program guide information extracted by the information extracting means in a storage medium, and off time setting means for setting a power off time Control means for changing the power-off state from the power-on state to the power-off state at the set power-off time; and a program of a predetermined program related to the program data stored in the storage medium and extracted by the data extracting means. When determining whether or not the set power-off time satisfies the condition that the set power-off time falls in the middle of the predetermined program with reference to the guide information. And condition determining means, when it is determined that satisfies the above conditions in this time condition determining means, the power-off time that is the set in which and a set time changing means for changing the end time of the predetermined program.

[0010] In the program data receiving method according to the present invention, a first step of selecting a receiving channel and a second step of extracting program data of the receiving channel selected in the first step from the received broadcast signal. And a third step of extracting program guide information from the received broadcast signal.
A fourth step of storing the program guide information extracted in the step of storing in the storage medium, a fifth step of setting a power-off time, and a power-off state from a power-on state at the set power-off time With reference to program guide information of a predetermined program relating to the program data extracted in the second step, which is stored in the storage medium, A seventh step of determining whether or not a condition of falling in the middle of the predetermined program is satisfied; and, if it is determined in the seventh step that the condition is satisfied, the set power-off time is changed to the predetermined program. And an eighth step of changing the end time.

In the present invention, program data of a reception channel selected by a user is extracted from a received broadcast signal. For example, image display and audio output are performed using the extracted program data of the reception channel, and the program data of the reception channel is recorded on a recording medium. Further, program guide information is extracted from the received broadcast signal and stored in a storage medium. The power off time set by the user in connection with the off timer function
When the current program is in the middle of a predetermined program, the set power-off time is changed and the power is turned off at the end time of the predetermined program. This prevents the power from being turned off during the program and giving the user discomfort.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of the digital satellite broadcast receiver 100.

The receiver 100 has a CPU (Centra) which constitutes a controller for controlling the operation of the entire receiver.
l Processing Unit) 101. CPU10
1 is connected to a bus 102 for a control system and an information system. The bus 102 further includes a ROM (read only memory) 103 in which data and programs necessary for the operation of the CPU 101 and a Japanese font and the like are stored.
And an EEPROM for storing program guide information, user information, and the like extracted from the broadcast data DB as described later.
M (Electrically Erasable and Programmable ROM) 1
04 is connected.

The receiver 100 is a hard disk drive (HDD) 1 for recording and reproducing data such as program data on a hard disk (HD) as a recording medium.
05. This hard disk drive 105
Is a hard disk controller (HD controller)
It is connected to the bus 102 via 106.

The receiver 100 is provided with a remote control transmitter 2
A remote control signal receiving unit 107 for receiving a remote control signal (hereinafter, referred to as “remote control signal”) SRM from CPU 00 and supplying it to CPU 101;
IC card interface unit 10 for mounting 00
8 is provided. These remote control signal receiving units 107
The I card interface unit 108 is connected to the bus 102.

The IC card 300 stores the key information of the scramble and judges whether or not viewing is possible based on the limited reception information sent from the CPU 101 through the IC card interface unit 108, In this case, the scramble key information is transferred to the IC card interface unit 1
It has a function of sending to the CPU 101 via the 08. The user (user) can use the remote control transmitter 200 to select a channel (program number), set a power-on time and a power-off time, and turn on and off the power.

The receiver 100 has a power supply circuit 109 for supplying power to each unit. This power supply circuit 109
Are connected to the bus 102 via the power supply controller 110. The CPU 101 can control the power supply circuit 109 through the power supply controller 110, and can turn on or off the power supply.

The receiver 100 includes an antenna 111 for receiving a digital broadcast signal (RF signal) from a satellite (not shown), and a digital broadcast signal of a predetermined RF channel from a plurality of digital broadcast signals received by the antenna 111. The tuner 112 includes a tuner 112 for extracting and performing a demodulation process and an error correction process on the digital broadcast signal to obtain a broadcast data DB, and a descrambling unit 113 for descrambling the broadcast data DB. .

The tuner 112 and the descrambling unit 113 are connected to the bus 102, respectively. The broadcast data DB is, for example, MPEG2 (Moving Picture Exp
ertsGroup 2) Transport stream. The tuning operation in the tuner 112 is controlled by the CPU 101 based on the operation of the remote control transmitter 200 by the user.

FIG. 2 shows the packet structure of an MPEG2 transport packet. The first 4 bytes of 188 bytes constitute a packet header. A PID (Packet Identification: Packet Identifier) indicating an attribute of an individual stream (data string) of the packet is arranged in the packet header.

The receiver 100 has a demultiplexer 114. This demultiplexer 114
Broadcast data D output from descrambling unit 113
From B ′, video data and audio data packets of the channel (program number) specified by the user's operation of remote controller transmitter 200 are extracted, and video data stream VDS and audio data stream ADS composed of those packets are output. At the same time, it extracts a packet of the additional data of the channel and outputs an additional data stream composed of the packet.
Further, the demultiplexer 114 outputs the broadcast data DB '
From EPG (Electronic Progr) as program guide information
am Guide) is output. The demultiplexer 114 is connected to the bus 102, and its operation is controlled by the CPU 101.

The EPG is one of the services specific to digital multi-channel broadcasting, and is used for displaying a currently broadcast program to select a channel, and for reserving a program several days ahead. . The EPG information includes information such as a program name, a channel (program number), a broadcast start date and time, and a broadcast end date and time. EPG information is SI (Service
Information) is described in section-type tables called information. In a representative table, an SDT (Service Description Table) representing channel information and an EIT (Event Information Tag) representing event (program) information are shown.
ble).

The SDT includes a channel number, a channel name,
The channel content and the like are described, and the PID is fixedly “0 × 0011”. FIG. 3 shows a table structure of the SDT. The main contents will be described. The table ID indicates the type of the table. The network is “0 × 42”, and the other networks are “0 × 46”.
It is. In SDT, the TSID where the table exists
Presence or absence of scrambling for each service multiplexed in the transport stream having
Describes the service name, service contents, service type, and the like of the service.

The EIT describes a program name, a program start time, a synopsis, a genre, and the like.
Is “0 × 0012”. FIG. 4 shows a table structure of the EIT. The main contents will be described. The table ID is “0 × 4E” for the network concerned and “0 × 4F” for other networks. In the EIT, for a plurality of events (= programs) that normally constitute one service (= program = channel), the start time, duration, progress state, presence / absence of scrambling of the event, and
The descriptor included in the IT describes information related to a program name, a program genre, a pay-per-view program fee, a synopsis, and the like.

The receiver 100 performs a data decompression process on the video data stream VDS output from the demultiplexer 114 to obtain a video signal SV, and the audio output from the demultiplexer 114. An audio signal processing unit 116 that performs data decompression processing on the data stream ADS to obtain an audio signal SA. The video signal processing unit 115 and the audio signal processing unit 116 are connected to the bus 102, respectively.

The receiver 100 generates a display signal for displaying characters, figures, and the like on the screen, and converts the display signal to a video signal S obtained by the video signal processing unit 115.
An OSD (On Screen Display) processing unit 117 that synthesizes and outputs V is provided. The OSD processing section 117 is connected to the bus 102, and operations such as generation and synthesis of display signals are controlled by the CPU 101.

The receiver 100 includes an OSD processing unit 11
And a speaker 119 for outputting a sound based on the audio signal SA obtained by the audio signal processing unit 116. The monitor device 118 is, for example, a CRT (cathode-ray tube) display or L
It is a flat panel display such as a CD (liquid crystal display).

Next, the operation of the digital satellite broadcast receiver 100 shown in FIG. 1 will be described.

In the tuner 112, a digital broadcast signal of a predetermined RF channel is selected from digital broadcast signals of a plurality of RF channels received by the antenna 111,
Further, demodulation processing and error correction processing are performed on the digital broadcast signal of the predetermined RF channel, and broadcast data D
B is obtained.

The broadcast data DB output from the tuner 112 is supplied to a demultiplexer 114 via a descrambling unit 113. And demultiplexer 1
At 14, the video data and audio data packets of the channel (program number) specified by the user's operation of the remote control transmitter 200 are separated from the broadcast data DB 'output from the descrambling unit 113,
Video data stream VD consisting of those packets
S and the audio data stream ADS are obtained.

Further, the demultiplexer 114 separates the packet of the additional data of the channel specified by the user's operation from the broadcast data DB ', and obtains the additional data stream composed of the packet. This additional data stream is supplied to the CPU 101 via the bus 102. Then, from this additional data stream, C
The limited reception information extracted by the PU 101 is supplied to the IC card 300 via the bus 102 and the IC card interface unit 108.

The IC card 300 determines whether or not viewing is possible based on the limited reception information. If it is possible, the scramble key information is transmitted from the IC card 300 to the IC card interface unit 108 and the bus 102.
Is sent to the CPU 101 via the. This key information is
It is set in the descrambling unit 113 by U101. As a result, the descrambling unit 113 descrambles the scrambled video data and audio data packets, so that the video data stream V
The DS and the audio data stream ADS relate to the descrambled data.

The video data stream VDS obtained by the demultiplexer 114 is subjected to processing such as data decompression by the video signal processing unit 115 to generate a video signal SV.
4, the audio signal stream ADS is subjected to processing such as data decompression by the audio signal processing unit 116 to generate an audio signal SA.

Then, the video signal SV generated by the video signal processing unit 115 is supplied to the monitor device 118 via the OSD processing unit 117. Thereby, the monitoring device 1
At 18 is displayed an image based on the video signal SV. The audio signal SA generated by the audio signal processing unit 116 is supplied to a speaker 119. As a result, a sound based on the audio signal SA is output from the speaker 119.

The information of the EPG extracted from the broadcast data DB 'by the demultiplexer 114 is
Is supplied to and stored in the EEPROM 104 via the.
The CPU 101 uses the information of the EPG to create display data of a program guide, and to change a power-on time and a power-off time described later.

For example, when the user operates the remote control transmitter 200 to display a program table of a predetermined genre and date and time, the CPU 101 determines a predetermined genre and a predetermined genre based on the information of the EPG stored in the EEPROM 104. Create display data for displaying a program guide including the program of the date and time. Then, the CPU 101 supplies the display data to the OSD processing unit 117 via the bus 102. The OSD processing unit 117 generates a display signal based on the display data, and combines the display signal with the video signal SV output from the video signal processing unit 115. As a result, the video signal SV ′ output from the OSD processing section 117 becomes a composite signal of the video signal SV output from the video signal processing section 115 and the display signal. The date and time program guide is displayed.

When a user performs a recording operation using the remote control transmitter 200, the video data and audio data obtained from the video signal processing unit 115 and the audio signal processing unit 116 are supplied to the hard disk drive 105 and stored in the hard disk drive. Be recorded. On the other hand, when the user performs a reproduction operation using the remote control transmitter 200, video data and audio data are reproduced from the hard disk by the hard disk drive 105, and the data is supplied to the video signal processing unit 115 and the audio signal processing unit 116. Is done. As a result, an image based on the reproduced video signal SV is displayed on the monitor device 118, and a sound based on the reproduced audio signal SA is output from the speaker 119.

Next, referring to the flowchart of FIG. 5, the power-on time is set in relation to the on-timer function, and the power-off operation is performed in that state.
The control operation of the PU 101 will be described.

First, in step ST1, the EEPROM 1
At 04, it is determined whether or not EPG information of a program (hereinafter, referred to as “program A”) corresponding to the set power-on time in the same reception channel as when the power is off is held.

When the EPG information of the program A is not held, the process proceeds to step ST2. In this step ST2, the demultiplexer 114 is controlled so as to extract EPG information from the broadcast data DB '. Then, in step ST3, the E extracted by the demultiplexer 114
PG information is stored in the EEPROM 104, and step S
Return to T1. When the information of the EPG is extracted and stored in this manner, even after the power-off operation is performed, the EPG information of the tuner 112, the demultiplexer 114, and the like is output.
Power is supplied to the portion related to the extraction and storage of the G information. On the other hand, when the information of the EPG of the program A is stored in the EEPROM 104, the process proceeds to step ST4.
With reference to the information of the EPG, the start time Ta of the program A
And the set power-on time Tb.

Then, in step ST5, it is determined whether or not the set power-on time Tb is later than the start time Ta of the program A and the power-on time Tb falls in the middle of the program A. judge. If the condition is satisfied, the process proceeds to step ST6, where the set power-on time Tb is changed to the start time Ta of the program A, and the process ends. On the other hand, when the condition is not satisfied, that is, when the set power-on time Tb is the same as the start time Ta of the program A, the process ends without changing the set power-on time Tb.

Next, referring to the flowchart of FIG.
The control operation of the CPU 101 when the power-off time is set in relation to the off-timer function will be described.

First, in step ST11, the EEPROM
At 104, it is determined whether or not the EPG information of the currently viewed program (hereinafter, referred to as “program B”) is held. If the EPG information of the program B is not held, the process proceeds to step ST12. In this step ST12, the demultiplexer 114 is controlled so as to extract EPG information from the broadcast data DB '. And step S
At T13, the EPG extracted by the demultiplexer 114
At step ST1.
Return to 1. On the other hand, the program B EPG is stored in the EEPROM 104.
In step ST14, the end time Tc of the program B is compared with the set power-off time Td in step ST14.

Then, in step ST15, it is determined whether or not the set power-off time Td is before the end time Tc of the program B and the power-off time Td falls in the middle of the program B. judge. If the condition is satisfied, the process proceeds to step ST16, in which the set power-off time Td is changed to the end time Tc of the program B, the process ends, and the process proceeds to step ST17. On the other hand, when the condition is not satisfied, that is, the set power-off time T
If c is the same as the end time Tb of the program B, the process immediately proceeds to step ST17.

In step ST17, it is determined whether or not the reception channel (program number) has been changed by the operation of the remote control transmitter 200 by the user. If there is a change in the receiving channel, the end time Tc of the currently viewed program B may change, so the process returns to step ST11 and the above-described processing is performed again.

As described above, in this embodiment, when the power-on time set by the user falls in the middle of a predetermined program corresponding to the power-on time, the set power-on time is set to the predetermined program. And the power is turned on at the start time of the predetermined program. Therefore, it is possible to prevent the power from being turned on during the program and giving the user discomfort. Also, in the present embodiment, when the power-off time set by the user falls in the middle of a predetermined program currently being viewed, the set power-off time is changed to the end time of the predetermined program, and the predetermined program is ended. At the end time of the power supply.
Therefore, it is possible to prevent the power from being turned off during the program and giving the user uncomfortable feeling.

In the above-described embodiment, the present invention is applied to a digital satellite broadcast receiver. However, the present invention relates to other television receivers, video decks, etc. having a function of receiving program guide information. It is needless to say that the present invention can be similarly applied to the receiving device.

[0048]

According to the present invention, when the set power-on time falls in the middle of a predetermined program corresponding to the power-on time with reference to the program guide information, the set power-on time is changed. This is automatically changed to the start time of the predetermined program, and it is possible to prevent the user from being uncomfortable by turning on the power during the program. Also,
According to this invention, when the set power-off time falls in the middle of a predetermined program currently being viewed with reference to the program guide information, the set power-off time is automatically set to the end time of the predetermined program. It is possible to prevent the user from feeling uncomfortable by turning off the power during the program.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a digital satellite broadcast receiver as an embodiment.

FIG. 2 is a diagram showing a packet structure of an MPEG2 transport packet.

FIG. 3 is a service description table (S
FIG. 4 is a diagram showing a table structure of (DT).

FIG. 4 shows an event information table (E
It is a figure showing the table structure of IT).

FIG. 5 is a flowchart illustrating a control operation when a power-on time is set.

FIG. 6 is a flowchart illustrating a control operation when a power-off time is set.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 digital satellite broadcast receiver 101 CPU 102 bus 104 EEPROM 105 hard disk drive 106 hard disk controller 107 remote control signal receiving unit 108 IC card interface unit 109 power supply circuit 110 power supply controller 112 tuner 113 descrambling unit 114 demultiplexer 115 video signal processing unit 116 audio Signal processing unit 117 OSD processing unit 200 Remote control transmitter 300 IC card

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 7/03 H04N 7/08 A 7/035 7/167 Z // H04N 5/00 7/167 F term (Reference) 5C025 CA09 CB08 DA01 DA04 5C056 AA01 BA01 KA07 KA09 5C063 AB03 AB07 AB11 AC01 AC05 AC10 DA07 DA13 EB22 EB32 5C064 BC06 BC22 DA10 5K061 AA09 BB00 BB10 BB19 DD00 DD14 EF06 JJ09 JJ06JJ06

Claims (8)

[Claims] 1. A channel selecting means for selecting a receiving channel; a data extracting means for extracting program data of a receiving channel selected by the channel selecting means from a received broadcast signal; Information extraction means for extracting guide information; information storage means for storing the program guide information extracted by the information extraction means in a storage medium; on-time setting means for setting a power-on time; At the on-time, the power-off state is changed from the power-off state, and the control means controls the data extracting means to extract the program data on the same reception channel as at the power-off time. A program guide of a predetermined program corresponding to the set power-on time on the same reception channel as the power-off time. With reference to the information, time condition determining means for determining whether the set power-on time falls in the middle of the predetermined program, and determining that the condition is satisfied by the time condition determining means. And a set time changing means for changing the set power-on time to a start time of the predetermined program when the program data is received. 2. A first step of selecting a reception channel; a second step of extracting program data of the reception channel selected in the first step from a received broadcast signal; A third step of extracting program guide information from a signal, a fourth step of storing the program guide information extracted in the third step in a storage medium, and a fifth step of setting a power-on time. A power-on state from a power-off state at a set power-on time, and control to extract program data on the same reception channel as at power-off from the received broadcast signal. Referring to the program guide information of a predetermined program corresponding to the set power-on time on the same reception channel as that at the time of power-off stored in the storage medium. A seventh step of determining whether the specified power-on time falls in the middle of the predetermined program; and determining that the condition is satisfied in the seventh step, Changing the current power-on time to the start time of the predetermined program. 3. Channel selection means for selecting a reception channel; data extraction means for extracting program data of the reception channel selected by the channel selection means from a received broadcast signal; Information extracting means for extracting guide information; information storing means for storing the program guide information extracted by the information extracting means in a storage medium; off-time setting means for setting a power-off time; Control means for turning the power off from the power on state at the off time; and referring to program guide information of a predetermined program related to the program data extracted by the data extracting means and stored in the storage medium. A time condition determining means for determining whether or not a condition that the set power-off time falls in the middle of the predetermined program is satisfied; When it is determined to satisfy the above condition at the time condition decision means, the program data receiver apparatus, characterized in that it comprises a set time changing means for changing the power-off time which is the set to the end time of the predetermined program. 4. The apparatus according to claim 3, wherein said time condition determining means determines whether said condition is satisfied when said power-off time is set by said off-time setting means. Program data receiving device. 5. The time condition determining means, when a receiving channel selected by the channel selecting means is changed,
4. The program data receiving device according to claim 3, wherein it is determined whether the condition is satisfied. 6. A first step of selecting a reception channel; a second step of extracting program data of the reception channel selected in the first step from a received broadcast signal; A third step of extracting program guide information from the signal, a fourth step of storing the program guide information extracted in the third step in a storage medium, and a fifth step of setting a power-off time A sixth step of changing the power-off state from the power-on state at the set power-off time, and a predetermined step relating to the program data stored in the storage medium and extracted in the second step. A seventh step of determining whether the set power-off time falls in the middle of the predetermined program with reference to the program guide information of the program; and If you are satisfied When program data receiving method characterized in that it comprises an eighth step of changing the power-off time which is the set to the end time of the predetermined program. 7. The program according to claim 6, wherein when the power-off time is set in the fifth step, whether or not the condition is satisfied is determined in the seventh step. Data receiving method. 8. The method according to claim 6, wherein when the reception channel selected in the first step is changed, it is determined whether the condition is satisfied in the seventh step. Program data receiving method.