JP4404749B2 - Broadcast receiving terminal and control method thereof - Google Patents

Description

  The present invention relates to a broadcast receiving terminal capable of viewing a pay program of a digital broadcast by receiving viewing contract information and a control method thereof.

  In recent years, so-called mobile broadcasting (http://www.mbco.co.jp), a broadcasting service for individuals that can be enjoyed while traveling by car or train or outdoors, has started in the developed countries such as the United States and Japan. It is becoming popular. In particular, mobile broadcasting in Japan has a service system that allows users to enjoy multi-channel broadcasting of about 70 ch in total, including about 60 ch of audio programs, 9 ch of video programs, and data broadcasting channels anytime and anywhere.

  Mobile broadcasting uses a 2.6 GHz band radio wave called an S band, and broadcasting to all receiving terminals such as a fixed receiving terminal, a portable receiving terminal, and an in-vehicle receiving terminal is possible.

  In mobile broadcasting, radio waves reach with an output of about 10 times that of satellite broadcasting currently received by a parabolic antenna, so reception with a small omnidirectional antenna becomes possible. In addition, since the broadcasting is nationwide, it is not necessary to switch channels even when moving from one area to another.

  Further, high-speed data transmission of 7.2 Mbps is used for the above-described program distribution. In addition, mobile broadcasting uses radio waves from satellites located 36,000 kilometers above the equator, so it may not be received in the shadows of buildings, mountains, tunnels, etc. There is a mechanism called a gap filler that retransmits.

  The gap filler receives a 12 GHz band radio wave from a satellite with a parabolic antenna, converts the frequency to 2.6 GHz, and retransmits it with a dedicated antenna. That is, two types of radio waves are always emitted from the satellite.

  Meanwhile, terrestrial digital broadcasting for mobile devices is scheduled to start in 2005. In this mobile terrestrial digital broadcasting, a one-segment broadcasting system is planned to be adopted, and the contents can be received even by a micro-sized portable receiving device such as a PDA or a mobile phone.

  Here, one segment broadcasting uses one segment in terrestrial digital broadcasting. That is, the band given to the broadcasting station by terrestrial digital broadcasting is divided into 13 segments. Of these, 12 segments are used for ordinary broadcasting services. If high-definition broadcasting (HD) is performed, the entire 12 segments are used. If standard broadcasting (SD) is performed, three channels of four segments can be broadcast.

  Therefore, since the remaining one segment is used and a mobile reception service is performed by a mobile phone or the like, it is called one-segment mobile (one-segment broadcasting). The advantages of viewers by the digitalization of terrestrial broadcasts include the ability to view high-definition and high-quality digital high-definition broadcasts, the ability to use bidirectional data broadcasts, and mobile reception with clear images. And so on.

  By the way, in such digital broadcasting, especially when a pay program is viewed, broadcast reception cannot be performed unless CA (Conditional Access) information serving as viewing contract information is received.

  Such CA information is regularly transmitted from a broadcasting station together with a pay program, but its transmission timing is determined on the broadcasting station side by the number of receiving subscribers, the total amount of transmission data, etc. I don't know when it is transmitted from the broadcast receiving terminal side. Therefore, at the broadcast receiving terminal side, in order to reliably receive the CA information, it is necessary to first operate at least a circuit related to broadcast reception until the CA information can be received.

  In this case, particularly in a portable broadcast receiving terminal, if the power of the secondary battery is insufficient, at least the power supply to the circuits related to the broadcast reception is stopped, and the CA information cannot be received. There is a fear. At that time, the pay program can be viewed by receiving the CA information after charging the secondary battery, but until the CA information can be received after the time for charging the secondary battery and after charging. Even if an attempt is made to watch a program that the user wants to watch immediately after purchasing or contracting for a pay program, it may be possible to wait for the charging time and the time until CA information can be received.

Incidentally, as for receiving viewing contract information, in Patent Document 1, when receiving a digital TV signal including individual information data for repeatedly transmitting individual information such as contract information for a certain period of time, the operation of the digital TV signal receiving means During the reception standby time set by the timer means when the power is turned off, the operating power of the digital TV signal receiving means is forcibly turned on, and individual information data is received and played back. There has been proposed a digital television broadcast receiving apparatus that reliably receives EMM (Entitlement Management Message) information, which is individual information to be transmitted.
JP 2000-59752 A

  However, in the digital television broadcast receiver according to Patent Document 1, wasteful power consumption is suppressed by forcibly turning on the operating power of the digital television signal receiving means during the reception standby time set by the timer means. However, even when reception of EMM information (individual information) is unnecessary, the operation power of the digital television signal receiving means is forcibly turned on during the reception standby time set by the timer means. become.

  For this reason, when such a technique is applied to a portable broadcast receiving terminal, even when reception of CA information including EMM information (individual information) serving as viewing contract information is unnecessary, a circuit related to broadcast reception is only in the timer setting period. As described above, if the power of the secondary battery is insufficient, the power supply to at least the circuit related to the broadcast reception is stopped and the CA information cannot be received. Even if the user wants to watch the program that he / she wants to watch immediately, he / she waits for the charging time and the time until the CA information can be received.

  By the way, in a portable broadcast receiving terminal, it is ideal that the secondary battery is always in a fully charged state so that the desired program can be viewed at any time. If it is possible to operate a circuit related to broadcast reception only when reception is necessary and not to operate a circuit related to broadcast reception when reception of CA information is unnecessary, it depends on the state of charge of the secondary battery. Therefore, it is considered that CA information can be quickly acquired at a user's preferred timing.

  The problem to be solved is that even if reception of viewing contract information is unnecessary, if the circuit related to broadcast reception is forcibly turned on only for the timer setting period, the power of the secondary battery is insufficient In some cases, the power supply to at least the circuits related to broadcast reception stops, and it becomes impossible to receive CA information. Even if you try to watch the program you want to watch immediately after purchasing or contracting for a paid program, And waiting for the time until the CA information can be received.

The broadcast receiving terminal of the present invention is a broadcast receiving terminal that receives a broadcast signal including viewing contract information in addition to video or audio information, and is capable of viewing a pay broadcast based on the viewing contract information. Receiving means for receiving, reproducing means for reproducing the video or audio information in the received broadcast signal, extraction means for extracting the viewing contract information from the received broadcast signal, and the entire broadcast receiving terminal A control unit having a charging mode for performing charging processing on a secondary battery that supplies power, and a control mode for performing processing for extracting the viewing contract information simultaneously with charging processing for the secondary battery in a standby state of the broadcast receiving terminal Means.
In such a configuration, the control means performs the process of extracting viewing contract information simultaneously with the charging process of the secondary battery according to the control mode, so that the user wants to watch the program that he / she wants to watch immediately after purchasing or contracting a pay program. Even when the power of the secondary battery is insufficient, the viewing contract information can be quickly and reliably acquired without waiting until the charging of the secondary battery is completed. The viewing contract information can be quickly acquired at the user's preferred timing regardless of the state of charge.
The broadcast receiving terminal of the present invention is a broadcast receiving terminal that receives a broadcast signal including viewing contract information in addition to video or audio information, and is capable of viewing a pay broadcast based on the viewing contract information. Receiving means for receiving, reproducing means for reproducing the video or audio information in the received broadcast signal, extraction means for extracting the viewing contract information from the received broadcast signal, and the entire broadcast receiving terminal Charging means for charging a secondary battery that supplies power, a first control mode for extracting the viewing contract information simultaneously with the charging process for the secondary battery, and a charging process for the secondary battery. Selection means for selecting one of the second control modes for performing the viewing contract information extraction process later, and the first or second control selected by the selection means in the standby state of the broadcast receiving terminal Characterized in that it comprises a control means for controlling the charging process and the extraction process in response to the over-de.
In such a configuration, since the control unit controls the charging process and the extraction process according to the first or second control mode, the user can freely select the time when the user wants to acquire the viewing contract information. The viewing contract information can be quickly acquired at the user's preferred timing regardless of the state of charge of the secondary battery. In this case, for example, the contractor information periodically transmitted from the satellite in the order of the contractor can be acquired at the earliest timing, and there is no need to wait for the acquisition timing from the next cycle onward due to the necessity of charging processing or the like. . This allows the user to view the video or audio information based on the viewing contract information acquired immediately while charging even immediately after purchasing the product, and to acquire the viewing contract information after shortening the charging time. Alternatively, the user can freely set one of modes in which the audio information can be viewed in a sufficiently charged state.
The broadcast receiving terminal according to claim 2, wherein the control means includes a first control means for controlling a charging process for the secondary battery, and a second control means for controlling a process for extracting the viewing contract information. In the first control mode, power is supplied to the first control means and the charging means, and simultaneously, power is supplied to the second control means and the extraction means. In the control mode, power can be supplied to the first control means and the charging means, and then power can be supplied to the second control means and the extraction means.
In such a configuration, when the charging process is performed without obtaining the viewing contract information, only the power supply is supplied to the portion necessary for the charging process, and then the power supply necessary for the viewing contract information extraction process is provided. Power consumption at the time of charging can be reduced, and in particular, it is not necessary to acquire viewing contract information immediately, and at the same time reducing standby power consumption when performing charging processing, Charging time can be shortened.
The control method for a broadcast receiving terminal according to the present invention is a control method for a broadcast receiving terminal that receives a broadcast signal including viewing contract information in addition to video or audio information and can view a pay broadcast based on the viewing contract information. A charging process for charging a secondary battery that feeds power to the entire broadcast receiving terminal, a receiving process for receiving the broadcast signal with the power obtained by the charging process, and the viewing contract among the received broadcast signals. In the standby process of the broadcast receiving terminal, the extraction process for extracting information, the reproduction process for reproducing the video or audio information of the received broadcast signal, and the charging process for the secondary battery in the standby state of the broadcast receiving terminal. And a control process for performing the extraction process.
In such a configuration, since the viewing contract information extraction process is performed simultaneously with the charging process of the secondary battery, the power of the secondary battery is low when trying to view the program that you want to watch immediately after purchasing or contracting for a pay program. Even if it is insufficient, it is possible to quickly and surely obtain viewing contract information without waiting for the charging to the secondary battery to be completed, and the user's Viewing contract information can be quickly acquired at a desired timing.
The control method for a broadcast receiving terminal according to the present invention is a control method for a broadcast receiving terminal that receives a broadcast signal including viewing contract information in addition to video or audio information and can view a pay broadcast based on the viewing contract information. A charging process for charging a secondary battery that feeds power to the entire broadcast receiving terminal, a receiving process for receiving the broadcast signal with power obtained by the charging process, and the video or A first control mode for performing a reproduction process for reproducing audio information, an extraction process for extracting the viewing contract information from the received broadcast signal, and a process for extracting the viewing contract information simultaneously with the charging process for the secondary battery. And a selection process for selecting one of the second control mode for performing the viewing contract information extraction process after the charging process for the secondary battery, and in the standby state of the broadcast receiving terminal, And having a control process for controlling the charging process and extraction process in accordance with the selected by the selection process the first or second control mode.
In such a configuration, since the charging process and the extraction process are controlled according to the first or second control mode, the user can freely select the time when the viewing contract information is desired to be acquired, and the secondary battery The viewing contract information can be quickly acquired at the user's preferred timing regardless of the state of charge. In this case, for example, the contractor information periodically transmitted from the satellite in the order of the contractor can be acquired at the earliest timing, and there is no need to wait for the acquisition timing from the next cycle onward due to the necessity of charging processing or the like. . This allows the user to view the video or audio information based on the viewing contract information acquired immediately while charging even immediately after purchasing the product, and to acquire the viewing contract information after shortening the charging time. Alternatively, the user can freely set one of modes in which the audio information can be viewed in a sufficiently charged state.
Further, in the broadcast receiving terminal control method according to claim 5, in the first control mode, power supply for the charging process is performed simultaneously with power supply for the extraction process, In the control mode, it is possible to supply power for the charging process and then supply power for the extraction process.
In such a configuration, when the charging process is performed without obtaining the viewing contract information, only the power supply is supplied to the portion necessary for the charging process, and then the power supply necessary for the viewing contract information extraction process is provided. Power consumption at the time of charging can be reduced, and in particular, it is not necessary to acquire viewing contract information immediately, and at the same time reducing standby power consumption when performing charging processing, Charging time can be shortened.

  According to the broadcast receiving terminal of the present invention and the control method thereof, the control means performs the viewing contract information extraction process simultaneously with the charging process for the secondary battery according to the control mode. When you want to watch a program you want to watch immediately later, even if the power of the secondary battery is insufficient, you can quickly and reliably obtain viewing contract information without waiting for the secondary battery to be fully charged can do.

  In addition, according to the broadcast receiving terminal and the control method thereof according to the present invention, the control unit controls the charging process and the extraction process according to the first or second control mode, so the user wants to acquire viewing contract information. The timing can be freely selected, and the viewing contract information can be quickly acquired at the user's preferred timing regardless of the state of charge of the secondary battery.

  In the broadcast receiving terminal and the control method thereof in the present embodiment, the control means performs the extraction process of the viewing contract information simultaneously with the charging process of the secondary battery according to the control mode. When you try to watch a program you want to watch immediately after contracting, even if the secondary battery power is insufficient, you can quickly and reliably view the viewing contract information without waiting until the secondary battery is fully charged. I was able to get it.

  In the broadcast receiving terminal and the control method thereof according to the present embodiment, the control unit controls the charging process and the extraction process according to the first or second control mode, and the user acquires the viewing contract information. In addition to being able to freely select a desired time, viewing contract information can be quickly acquired at the user's preferred timing regardless of the state of charge of the secondary battery.

Embodiments of the present invention will be described below.
1 is a diagram showing an embodiment of a broadcast receiving terminal of the present invention, FIG. 2 is a flowchart for explaining operations by the broadcast receiving terminal of FIG. 1, and FIG. 3 is a setting screen in the broadcast receiving terminal of FIG. It is a figure which shows an example.

  As shown in FIG. 1, the broadcast receiving terminal includes an antenna 1, a front end 2, a separation circuit (DEMUX) 3, an audio processing unit 4, an AMP 5, a speaker 6, a video processing unit 7, an OSD circuit 8, a display unit 9, and a main unit. A microcomputer 10, a screen memory 11, a sub-microcomputer 12, an operation unit 13, a charge control unit 14, and a secondary battery 15 are provided. Here, the main circuit involved in broadcast reception is at least the front end 2 and the separation circuit (DEMUX) 3. A region surrounded by a dotted line indicates a portion that operates in the standby mode, and a region surrounded by a one-dot chain line is a portion that operates in the charging mode.

  The front end 2 constitutes reception means, the audio processing unit 4, the AMP 5, the speaker 6, the video processing unit 7, the OSD circuit 8, and the display unit 9 constitute reproduction means, and the separation circuit (DEMUX) 3 is extraction means. The operation unit 13 constitutes a selection unit, the charging control unit 14 constitutes a charging unit, and the main microcomputer 10 and the sub-microcomputer 12 constitute a control unit. Further, the main microcomputer 10 constitutes second control means, and the sub-microcomputer 12 constitutes first control means.

  The antenna 1 receives RF signals of various channels for video broadcasting, audio broadcasting, and data broadcasting. The front end 2 selects a received channel from various received channels according to a user's selection operation using a remote controller (not shown), converts the RF signal into a digital signal, and then descrambles the received channel.

  The separation circuit (DEMUX) 3 converts the digital signal from the front end 2 into CA information (contractor information) including video data, audio data, EPG (electronic program guide) information, and EMM information (individual information) as viewing contract information. ) Etc. The audio processing unit 4 decodes the audio data from the separation circuit (DEMUX) 3, converts it into an analog audio signal, and outputs it.

  The AMP 5 amplifies the analog audio signal from the audio processing unit 4. The speaker 6 outputs the audio signal amplified by the AMP 5. The video processing unit 7 decodes the video data from the separation circuit (DEMUX) 3, converts it into an analog video signal, and outputs it. The OSD circuit 8 causes the display unit 9 to perform on-screen display. The display unit 9 performs display of the video signal from the video processing unit 7 and on-screen display.

  The main microcomputer 10 controls the operation of each unit, exchanges data with the sub-microcomputer 12, and selects any of a charging mode, a post-charging standby mode, and a standby mode, which will be described later, according to a user's selection operation. Execute.

  Here, the charging mode is an operation in which only the secondary battery 15 is charged and the CA information is not received when the main system power supply is “off”. In this case, only the part of the region surrounded by the above-described dashed line is operated.

  Further, the post-charging standby mode, which is the second control mode, is an operation in which the secondary battery 15 is charged at a high speed when the main system power supply is “off”, and shifts to reception of CA information after the charging is completed. is there. In this case, first, only the portion of the region surrounded by the above-described dashed line is operated, and then the portion of the region surrounded by the above-described dotted line is operated.

  The standby mode, which is the first control mode, is an operation in which, when the main system power supply is “off”, the CA information is set in the reception state and the secondary battery 15 is charged at the same time. In this case, the part of the area surrounded by the dotted line is operated.

  Note that at least the audio processing unit 4, the AMP 5, the speaker 6, the video processing unit 7, the OSD circuit 8, and the display unit 9, which are circuits related to audio output and video output, have the main system power turned on by the user. At this time, it is operated by the main microcomputer 10.

  The screen memory 11 stores screen data for causing the display unit 9 to perform on-screen display. The screen data includes an energy saving setting screen and an energy saving standby setting screen which will be described later. The sub-microcomputer 12 manages ON / OFF of the main system power supply, and notifies the main microcomputer 10 of information such as selection of ON / OFF of the main system power supply from the operation unit 13 and mode selection on the OSD. When the secondary battery 15 is charged, a charge start signal is output to the charge control unit 14. The operation unit 13 accepts an instruction from the user, such as selection of turning on / off the main system power supply or mode selection on the OSD.

  When the charging control unit 14 receives a charging start signal from the sub-microcomputer 12, the charging control unit 14 causes the secondary battery 15 to charge, and when the charging to the secondary battery 15 is completed, notifies the sub-microcomputer 12 of the completion. To do. The charging of the secondary battery 15 is performed when the secondary battery 15 is mounted and power of an AC adapter as an external power source (not shown) is supplied. The end of charging of the secondary battery 15 is notified either when the charging of the secondary battery 15 is completed, when the supply of power to the AC adapter is stopped, or when the secondary battery 15 is removed. Is done. The secondary battery 15 is used as a main system power supply, is charged by a power supply from an AC adapter (not shown), and is detachably attached to a predetermined part of the broadcast receiving terminal body.

Next, the operation of the broadcast receiving terminal will be described.
First, it is assumed that an energy saving setting screen as shown in FIG. The energy saving setting screen has display contents including items of “off timer setting”, “brightness setting”, and “standby setting”.

  Next, as shown in FIG. 2, when the item “Standby setting” is selected from the energy saving setting screen, the energy saving standby setting screen as shown in FIG. S1). This energy saving standby setting screen has display contents including items of “charging”, “standby after charging”, and “standby”, and is also a selection screen for selecting any item by the user.

  By selecting one of the items “Charging”, “Standby after charging”, and “Standby” from this energy saving standby setting screen (step S2), it is possible to shift to the charging mode, the standby mode after charging, and the standby mode. .

  In this case, for example, a flag for a charging mode, a standby mode after charging, and a standby mode are prepared in a memory (not shown), and any of the items “charging”, “standby after charging”, and “standby” is selected. Then, by setting a flag corresponding to each mode, it is possible to shift to any one of the charging mode, the standby mode after charging, and the standby mode (steps S3 to S5).

  Next, after detecting that the main system power supply of the broadcast receiving terminal is OFF (step S6), it is confirmed whether or not the AC adapter is operating (step S7). When it is confirmed that the AC adapter is operating, the process proceeds to standby mode flag determination in (step S8). If the AC adapter is not operating, whether the standby mode flag is in standby mode (step S9). Proceed to determine whether or not.

  Here, in the standby mode flag determination in (step S8), the standby mode flag set by the user is determined, and the process proceeds to each mode process. That is, if the flag is in the charging mode, the process proceeds to the charging mode. If the flag is in the standby mode after charging, the process proceeds to the standby mode after charging. If the flag is in the standby mode, the process proceeds to the standby mode.

  Here, the charging mode is a process that is executed even when the standby mode flag in (Step S9) is not the standby mode. When this process is executed, the main microcomputer 10 terminates the main system power supply. A request is issued (step S10). The reason for termination here is included in the issuance of the main system power source termination request and is in charge standby.

  At this time, the sub-microcomputer 12 turns off the main system power supply (step S11) and enters a charging standby state (step S12). Charging standby here is a general standby state in which charging can be started when charging conditions are met, or the main system power supply can be activated when the main system power supply is turned on. State.

  On the other hand, in the standby mode after charging, it is determined whether charging is in progress (step S13). If charging is in progress, a main system power supply termination request is issued from the main microcomputer 10 to the sub-microcomputer 12 (step S14). If it is not charging, it will shift to the standby mode described later. Note that the reason for termination here is included in the issuance of the main system power supply termination request, as described above, and is activated after charging.

  When the sub-microcomputer 12 receives the main system power supply termination request, it turns off the main system power supply (step S15), and first proceeds to the charging mode (step S16). Here, the sub-microcomputer 12 switches the charging mode from low speed to high speed. This is because the charging mode does not require the reception of CA information, and the operation of at least the front end 2 and the separation circuit (DEMUX) 3, which are the main circuits related to broadcast reception, is stopped. This is because high-speed charging becomes possible.

  During charging, the sub-microcomputer 12 monitors the charging end notification from the charging control unit 14 (step S17). When the charging end notification is received, the main system power supply is turned on (step S18). At this time, the sub-microcomputer 12 notifies the main microcomputer 10 of the activation reason for the activation after charging (step S19).

  When the main microcomputer 10 receives the activation reason for activation after charging, the main microcomputer 10 shifts to the standby mode. Note that the standby mode here also shifts when the standby mode flag is determined in (step S8) when it is a standby mode or when it is determined that charging is not being performed in (step S13).

  That is, when the main microcomputer 10 shifts to the standby mode, it stops unnecessary circuit operations (step S20). The unnecessary circuit here is a circuit related to audio output and video output, and includes at least the audio processing unit 4, the AMP 5, the speaker 6, the video processing unit 7, the OSD circuit 8, and the display unit 9. However, in the standby mode, since the CA information is in a reception state, at least the front end 2 and the separation circuit (DEMUX) 3 which are main circuits related to broadcast reception are operated.

  Next, it is determined whether or not the AC adapter is operating (step S21). This is because the AC adapter operation is a necessary condition in the standby mode. At this time, if it is determined that the AC adapter is not operating, the process proceeds to standby mode cancellation. At this time, a main system power supply termination request is issued from the main microcomputer 10 to the sub-microcomputer 12 (step S22). The reason for termination in this case is AC adapter voltage monitoring. This mode is for starting the main system power supply when the AC adapter is connected.

  At this time, the sub-microcomputer 12 turns off the main system power supply and monitors the voltage of the AC adapter (steps S23 and S24). When the AC adapter is connected and the voltage of the AC adapter is obtained, the main system power supply is turned on by the sub-microcomputer 12 (step S25). Accordingly, at least the front end 2 and the separation circuit (DEMUX) 3 described above, which are the main circuits related to the above-described broadcast reception, are operated, and the CA information is in a reception state.

  At this time, the activation reason that the voltage of the AC adapter is detected is notified from the sub microcomputer 12 to the main microcomputer 10 (step S26). Thereafter, the main microcomputer 10 shifts to the standby mode again.

  The standby mode is canceled when the user turns on the main system power. At this time, the main microcomputer 10 operates at least the audio processing unit 4, the AMP 5, the speaker 6, the video processing unit 7, the OSD circuit 8, and the display unit 9, which are circuits related to the above-described audio output and video output.

  As described above, in the present embodiment, the main microcomputer 10 controls the charging process and the viewing contract information extraction process in accordance with the first or second control mode, so that the user acquires the viewing contract information. The desired time can be freely selected, and the viewing contract information can be quickly acquired at the user's preferred timing regardless of the state of charge of the secondary battery 15.

  Specifically, when the main system power is turned off, the main microcomputer 10 instructs the sub-microcomputer 12 to charge the secondary battery 15 and stops the operation of the circuit related to reception and the circuit related to reproduction. When the mode and the main system power are off, the sub-microcomputer 12 is instructed to charge the secondary battery 15 at high speed, and after charging is completed, the circuit related to reception is operated to shift to reception of CA information. Mode (second control mode) and standby mode in which when the main system power is turned off, a circuit related to reception is operated to set the CA information to the reception state, and at the same time, the sub-microcomputer 12 is instructed to charge the secondary battery 15 Since any one of (first control mode) is executed, either the case where the user needs to receive the CA information or the case where it is unnecessary It is possible to select the mode.

  In this case, for example, CA information periodically transmitted from the satellite in the order of the contractor can be acquired at the earliest timing, and there is no need to wait for the acquisition timing until the next cycle or later due to the necessity of charging processing or the like. This allows the user to view the video or audio information based on the CA information acquired immediately while charging even immediately after purchasing the product, and to acquire the CA information after shortening the charging time. The user can freely set one of the modes in which the information can be viewed in a sufficiently charged state.

  In addition, when the main system power supply is not turned on by the user, only the secondary battery 15 is charged by executing the charging mode, so that the power of the secondary battery 15 may be wasted. Disappear.

  In addition, by executing the standby mode after charging, priority is given to high-speed charging to the secondary battery 15, and it is possible to automatically shift to reception of CA information after the charging is completed, which is effective for quick charging. .

  In addition, since the standby mode is executed, the charging of the secondary battery 15 and the reception of the CA information proceed at the same time. Even when the power of the battery 15 is insufficient, the viewing contract information can be acquired quickly and reliably without waiting for the charging of the secondary battery to be completed.

  In the present embodiment, the case where the CA information is used as the viewing contract information has been described. However, it is needless to say that the viewing contract information other than the CA information may be used.

  The present invention is not limited to broadcast receiving terminals for so-called mobile broadcasts and broadcasts for terrestrial digital mobile devices, which are broadcast services for individuals, but can also be applied to broadcast receiving terminals that receive satellite broadcasts such as BS and CS.

It is a figure which shows one Embodiment of the broadcast receiving terminal of this invention. It is a flowchart for demonstrating the operation | movement by the broadcast receiving terminal of FIG. It is a figure which shows an example of the setting screen in the broadcast receiving terminal of FIG.

Explanation of symbols

2 Front end
3 Separation circuit
4 Voice processing part
5 AMP
6 Speaker
7 Video processing part
8 OSD circuit
9 Display section
10 Main microcomputer
12 Sub-microcomputer
13 Operation unit
14 Charge Control Unit 15 Secondary Battery

Claims (6)

A broadcast receiving terminal that receives a broadcast signal including viewing contract information in addition to video or audio information, and is capable of viewing a pay broadcast based on the viewing contract information,
Receiving means for receiving the broadcast signal;
Reproduction means for reproducing the video or audio information of the received broadcast signal;
Extraction means for extracting the viewing contract information from the received broadcast signal;
Charging means for charging the secondary battery for supplying power to the entire broadcast receiving terminal;
A broadcast receiving terminal, comprising: a control unit having a control mode for performing a process of extracting the viewing contract information simultaneously with a process of charging the secondary battery in a standby state of the broadcast receiving terminal. A broadcast receiving terminal that receives a broadcast signal including viewing contract information in addition to video or audio information, and is capable of viewing a pay broadcast based on the viewing contract information,
Receiving means for receiving the broadcast signal;
Reproduction means for reproducing the video or audio information of the received broadcast signal;
Extraction means for extracting the viewing contract information from the received broadcast signal;
Charging means for charging the secondary battery for supplying power to the entire broadcast receiving terminal;
A first control mode for performing the viewing contract information extraction process simultaneously with the charging process for the secondary battery; and a second control mode for performing the viewing contract information extraction process after the charging process for the secondary battery. A selection means for selecting one,
A broadcast receiving terminal comprising: a control unit that controls the charging process and the extraction process in accordance with the first or second control mode selected by the selection unit in a standby state of the broadcast receiving terminal. . The broadcast receiving terminal according to claim 2,
The control means includes first control means for controlling charging processing of the secondary battery, and second control means for controlling extraction processing of the viewing contract information,
In the first control mode, power is supplied to the first control means and the charging means, and simultaneously, power is supplied to the second control means and the extraction means,
In the second control mode, power is supplied to the first control means and the charging means, and then power is supplied to the second control means and the extraction means. Terminal. A control method of a broadcast receiving terminal that receives a broadcast signal including viewing contract information in addition to video or audio information and is capable of viewing a pay broadcast based on the viewing contract information,
A charging process for charging a secondary battery that supplies power to the entire broadcast receiving terminal;
A receiving process for receiving the broadcast signal by the power obtained by the charging process;
An extraction process for extracting the viewing contract information from the received broadcast signal, and a reproduction process for reproducing the video or audio information from the received broadcast signal;
A control method for a broadcast receiving terminal, comprising: a control process for extracting the viewing contract information simultaneously with a charging process for the secondary battery in a standby state of the broadcast receiving terminal. A control method of a broadcast receiving terminal that receives a broadcast signal including viewing contract information in addition to video or audio information and is capable of viewing a pay broadcast based on the viewing contract information,
A charging process for charging a secondary battery that supplies power to the entire broadcast receiving terminal;
A receiving process for receiving the broadcast signal by the power obtained by the charging process;
Reproduction processing for reproducing the video or audio information in the received broadcast signal;
An extraction process for extracting the viewing contract information from the received broadcast signal;
A first control mode for performing the viewing contract information extraction process simultaneously with the charging process for the secondary battery; and a second control mode for performing the viewing contract information extraction process after the charging process for the secondary battery. A selection process to select one,
And a control process for controlling the charging process and the extraction process in accordance with the first or second control mode selected by the selection process in the standby state of the broadcast receiving terminal. Control method. In the control method of the broadcast receiving terminal according to claim 5,
In the first control mode, power supply for the extraction process is performed simultaneously with power supply for the charging process,
In the second control mode, a power supply for the charging process is performed, and thereafter, a power supply for the extraction process is performed.

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