JP2011223196A - Broadcast receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a broadcast receiver allowing a user to surely grasp the state of the current setting of the device.SOLUTION: The digital television set 100 (broadcast receiver) comprises a tuner 11 and a control unit 18. The tuner 11 is provided within a device body and receives digital television broadcast waves. The control unit 18 performs control to compare program information (SI) on each broadcast company obtained via the tuner 11 with program information (SI) on each broadcast company obtained via an USB-type tuner 50 provided separately from the tuner 11 and capable of receiving the digital television broadcast waves. When determining that the program information obtained via the tuner 11 is different from the program information obtained via the USB-type tuner 50, the control unit 18 performs control to display, on a display screen part 30, a reporting screen 70 reporting to a user that the program information is updated by the broadcast company.

Description

  The present invention relates to a broadcast receiving apparatus, and more particularly to a broadcast receiving apparatus including a receiving unit that receives digital television broadcast waves.

  2. Description of the Related Art Conventionally, broadcast receiving apparatuses including a receiving unit that receives digital television broadcast waves are known (see, for example, Patent Documents 1 and 2).

  Patent Document 1 includes a plurality of tuner units (two units) that receive television broadcast waves, and a control unit that can execute a predetermined process in accordance with the operation status of the apparatus body including the tuner unit. An information processing apparatus (broadcast receiving apparatus) provided is disclosed. In the information processing apparatus described in Patent Document 1, a user can view a channel by scanning a channel using one of the two tuner units that is not currently used for receiving broadcast waves. The channel number list of possible TV programs can be updated to the latest state. It should be noted that the device setting accompanied by the scanning operation is automatically performed inside the apparatus main body without any special operation by the user.

  Patent Document 2 discloses a broadcast signal receiving device including a broadcast signal receiving unit capable of receiving an interactive service information signal transmitted together with a video signal from a broadcast station, and a control unit for controlling the broadcast signal receiving unit. An interactive service broadcast automatic search service is disclosed. In the interactive service broadcast automatic search service by the broadcast signal receiving apparatus described in Patent Document 2, the control unit has changed the operation mode of the apparatus main body (for example, when the power is switched from the off state to the on state). As a trigger, scanning of receivable channels is performed, and whether or not interactive service broadcasting is included in the receivable channels is determined. It should be noted that the device setting involving the scanning operation is automatically performed inside the apparatus main body without any special operation by the user.

JP 2009-290587 A JP 09-163348 A

  However, in the information processing apparatus described in Patent Document 1, the update process of the channel number list is automatically performed inside the apparatus main body without using a user interface (an environment in which a direct operation can be performed by the user's intention). Therefore, it is considered difficult for the user to directly grasp whether or not the channel number list has been updated. In particular, whether or not the channel number list is updated to the latest state is directly related to whether or not the number of television programs that can be viewed by the user increases. In the information processing apparatus described in Patent Document 1, There is a problem that the user cannot reliably grasp the current device setting state of the information processing apparatus.

  Further, in the broadcast signal receiving apparatus described in Patent Document 2, the scanning operation of receivable channels is automatically performed inside the apparatus main body without going through the user interface (an environment in which direct operation by the user's intention) is possible. It is considered that it is difficult for the user to directly grasp whether or not the number of receivable channels has been changed. In particular, whether or not the number of receivable channels has been changed to the latest state is directly related to whether or not the number of television programs that can be viewed by the user increases, and the broadcast signal described in Patent Document 2 above. The receiving apparatus has a problem that the user cannot reliably grasp the current device setting state of the broadcast signal receiving apparatus.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to provide a broadcast receiving apparatus that allows a user to reliably grasp the current device setting state. Is to provide.

Means for Solving the Problems and Effects of the Invention

  According to one aspect of the present invention, a broadcast receiving apparatus includes a first receiving unit that is provided in the apparatus main body and that receives a digital television broadcast wave including program information transmitted from each broadcaster, and a first receiving unit. The program information for each broadcaster acquired through the second receiver that is provided separately from the first receiver and can receive digital television broadcast waves. When it is determined that the program information acquired via the first receiver is different from the program information acquired via the second receiver, the program information is updated by the broadcaster. And a control unit that performs control for notifying the user of guidance information indicating that the information has been displayed.

  In the broadcast receiving apparatus according to one aspect of the present invention, as described above, the program information for each broadcaster acquired through the first receiver and the broadcaster acquired through the second receiver. When it is determined that the program information acquired via the first receiver is different from the program information acquired via the second receiver by comparing the program information of By providing a control unit that performs control for notifying the user of guide information indicating that the information has been updated, the user can determine the current device setting state of the broadcast receiving device based on the notified guide information. Can be surely grasped. That is, in television broadcasting in a digital signal format, program information may be updated at a certain point for convenience of the broadcaster. For example, when program information is updated by adding or deleting a physical channel, virtual channel (subchannel), etc., the broadcast receiving apparatus side is also adapted to appropriately receive the program information in response to the update. It is necessary to set the device again. Here, in television broadcasting in a digital signal format, program information including broadcast date and time, broadcast time, and other information of a television program is added to a broadcast wave in addition to video data and audio data. A broadcast receiving apparatus capable of receiving digital television broadcast waves is configured such that device settings are performed based on program information included in broadcast waves for each broadcaster. Therefore, when there is no means for notifying the user of the current state of the broadcast receiving device, the user is placed in a situation where even the fact that the program information has been updated (changed) is not known, and the television program (which can be viewed normally) ( May be overlooked even though (channel number) exists. On the other hand, when the broadcast receiving apparatus is configured to automatically update (reset) the device settings, processing operations contrary to the user's will are executed despite viewing. , The user may be prevented from watching the TV program. In this regard, in the configuration of the present invention described above, the user can surely grasp the current device setting state of the broadcast receiving device via the guide information, so that an appropriate operation on the broadcast receiving device can be performed. it can.

  In the broadcast receiving apparatus according to the above aspect, preferably, the second receiving unit is provided in an external device configured to be connectable to the apparatus main body, and the control unit is acquired via the first receiving unit. The program information is controlled to be notified to the user when it is determined that the program information is different from the program information acquired via the second receiving unit of the external device connected to the apparatus main body. Has been. If comprised in this way, the user can grasp | ascertain the present state of a broadcast receiving apparatus effectively using the external apparatus connected with the broadcast receiving apparatus. In addition, it is possible to easily grasp the device setting state of the broadcast receiving device by effectively using the connection function with the external device provided in the broadcast receiving device.

  In the configuration in which the second receiving unit is provided in the external device configured to be connectable to the apparatus main body, preferably, the control unit sequentially changes the reception frequency of the second receiving unit of the external device connected to the apparatus main body. The program information for each broadcaster acquired through the first receiving unit in the apparatus main body and the program information for each broadcaster acquired through the second receiving unit are obtained by performing scanning. In comparison, when it is determined that the program information acquired via the first receiver is different from the program information acquired via the second receiver, control for notifying the user of the guide information is performed. It is configured as follows. According to this configuration, the current receiving function of the first receiving unit built in the apparatus main body is continuously maintained without interruption, and the second receiving unit of the externally connected external device is used to Since the program information can be scanned for each broadcaster, viewing of the TV program can be continued without affecting the user as long as the reception function of the first receiving unit is not interrupted.

  In the configuration in which the second receiving unit is provided in an external device configured to be connectable to the apparatus main body, the program information transmitted from each broadcaster is preferably a transport stream that constitutes a digital television broadcast wave. The control unit is acquired via the second receiving unit of the external device connected to the apparatus main body and the program arrangement information for each broadcaster acquired via the first receiving unit. When it is determined that the program arrangement information for each broadcaster is different, control for notifying the user of guide information is performed. If comprised in this way, the program information was updated in the broadcast receiving apparatus side by comparing the program arrangement | sequence information (SI: service information) contained in the program information acquired via each receiving part. Can be easily determined. In particular, in the program arrangement information, information on the addition or deletion of channels (subchannels) for each broadcaster is specified, so by comparing the program arrangement information, the current device setting status of the broadcast receiving apparatus Can be surely grasped.

  In the configuration in which the program information includes program arrangement information, preferably, a channel number list that can be selected by the user is created based on the program information for each broadcaster, and the guide information includes Inquiring of the user whether or not to perform an update process for replacing the channel number list based on the program information acquired via the first receiving unit with the channel number list based on the program information acquired via the second receiving unit The control unit including the message is configured to perform control to determine whether or not to perform the update process based on a user operation on the message. With this configuration, whether or not to update the channel number list is directly related to whether or not the number of TV programs that can be viewed by the user increases, so that the guide information is updated in the channel number list. By including a message for inquiring whether or not to perform processing, the user's attention can be surely attracted and the user can be made to make an accurate determination regarding device settings.

  In the configuration including the message for inquiring the user whether or not the guidance information is to be updated, the control unit preferably causes the second receiving unit to receive a digital television broadcast wave when performing the update process. By displaying on the display device and performing scanning while sequentially changing the reception frequency of the first receiver, a channel number list based on the program information updated by the broadcaster is created and updated. It is configured. If comprised in this way, since it scans using the 1st receiving part built in the apparatus main body, the present program information can be acquired more reliably and rapidly. On the other hand, since the digital television broadcast wave can be received temporarily even by using the second receiving unit of the externally connected external device, even if the first receiving unit is scanning, the user's Watching TV programs can be easily continued.

  In this case, preferably, when the update process is performed, the control unit uses the difference when the program information acquired through the first receiving unit is compared with the program information acquired through the second receiving unit. Based on this, the first receiving unit is configured to perform scanning so as to perform control to create a channel number list based on the program information updated by the broadcaster. If comprised in this way, when scanning using a 1st receiving part, it differs from the case where the broadcast wave transmitted from all the broadcasters is received sequentially and program information is acquired irrespective of the presence or absence of an update. Thus, it is possible to selectively acquire only the program information transmitted from the broadcaster that has been updated or not, and create a channel number list based on the updated program information. As a result, the burden on the control unit related to the scanning operation can be reduced, and the time required for creating the channel number list can be shortened.

  In the configuration in which the second receiving unit is provided in an external device configured to be connectable to the apparatus main body, the control unit preferably includes the program information acquired via the first receiving unit for each predetermined period. Whether or not the program information has been updated by the broadcaster by comparing with the program information obtained by performing scanning while sequentially changing the reception frequency of the second receiving unit of the external device connected to the apparatus body It is comprised so that control which judges may be performed. By configuring in this way, unlike the case where the control unit compares the program information between the old and new times irregularly, the program information comparison process is periodically performed, so that the presence or absence of the program information update can be reliably grasped. Can do. That is, as the probability of overlooking that the program information has been updated is reduced, it is possible to always notify the user of reliable information (device setting state).

  In the broadcast receiving apparatus according to the above aspect, preferably, the control unit determines that the program information acquired through the first receiving unit is different from the program information acquired through the second receiving unit. In addition, it is configured to perform control for notifying the user of the guide information by displaying the guide information on the display device. If comprised in this way, the present apparatus setting state of a broadcast receiving apparatus can be reliably notified to a user via a display apparatus.

1 is a block diagram showing a configuration of a digital television according to a first embodiment of the present invention. It is the schematic which showed the channel number list which the digital television by 1st Embodiment of this invention has. It is the figure which showed the structure of the notification screen which the digital television by 1st Embodiment of this invention displays. It is the figure which showed the structure of the notification screen which the digital television by 1st Embodiment of this invention displays. It is a flowchart for demonstrating control operation of the digital television by 1st Embodiment of this invention. It is the block diagram which showed the state by which the digital television was connected to the HDD recorder by 2nd Embodiment of this invention.

(First embodiment)
First, with reference to FIGS. 1-4, the structure of the digital television 100 by 1st Embodiment of this invention is demonstrated. In the first embodiment, a case where the present invention is applied to a digital television 100 that is an example of a broadcast receiving apparatus will be described.

  As shown in FIG. 1, the digital television 100 according to the first embodiment of the present invention includes a control circuit unit 10 built in the apparatus body, a display screen unit 30 for displaying video, and a speaker 31 for outputting audio. And a remote controller 55 provided for operating the digital television 100 from a remote location. The display screen unit 30 is an example of the “display device” in the present invention.

  Further, the digital television 100 can receive a television broadcast wave transmitted (distributed) from each broadcaster by being connected to an antenna 40 installed in a house or the like via an antenna cable 41. It is configured. Here, the television broadcast wave transmitted from each broadcaster includes both terrestrial digital broadcast and satellite digital broadcast broadcast formats.

  The control circuit unit 10 also includes a tuner 11 that selects a predetermined transmission channel and receives digital television broadcast waves for each broadcaster, and orthogonal frequency division of the received television broadcast waves (analog radio waves). An OFDM demodulator 12 that demodulates a digital signal using a multiplex (OFDM) system, and a decoded digital signal (transport stream: TS) that has been demodulated is decoded (decoded), whereby TS is converted into video data. A TS decoder 13 that decomposes audio data and other program information, a video processing unit 14 that performs various processes on the video signal decoded by the TS decoder 13, and an audio signal decoded by the TS decoder 13. Audio processing unit 15 that performs processing, and video data based on character information and color information instructed to be output from control unit 18 described later. And the OSD unit (on-screen display unit) 16 that performs processing to embed the video data output from the display screen 30 is provided. The video data is output from the display screen unit 30 after being subjected to D / A conversion processing (digital / analog conversion processing) in the video processing unit 14, while the audio data is D / A converted in the audio processing unit 15. After the processing, the speaker 31 is configured to output. The tuner 11 is an example of the “first receiving unit” in the present invention.

  Here, the transport stream (MPEG-TS) received by the tuner 11 and demodulated by the OFDM demodulator 12 is transmitted (distributed) from each broadcaster as digital signal video data, audio data, and others. Program information. The program information for each broadcaster includes information consisting of PSI / SI (Program Specific Information / Service Information). Further, SI (service information) is provided for the purpose of complementing PSI (program information), and EIT (Event Information) in which “program sequence information” such as the name of the broadcast program and the broadcast date / time is recorded in the SI. Table) is included. In SI, a plurality of program arrangement information other than EIT is individually defined in a table format. PSI is an example of “program information” of the present invention, and SI (service information) and EIT are examples of “program arrangement information” of the present invention.

  Therefore, in the digital television 100, the channel number list 60 (see FIG. 5) that the user can select based on the service information (SI) included in the TS transmitted from each broadcaster when the television broadcast wave is received. 2) is created inside the device. That is, when the user connects the apparatus body to the antenna 40 for the first time, the TS sent from each broadcaster is sequentially scanned while sequentially changing the reception frequency of the tuner 11 according to a command from the control unit 18 described later. Thus, the channel number list 60 is configured in advance in the apparatus main body based on the SI (EIT) included in each TS. As a result, when the user selects a channel via the remote controller 55 or the like, the television broadcast wave corresponding to the selected channel number is received by switching the reception frequency of the tuner 11 based on the channel number list 60. It is configured to be able to.

  As shown in FIG. 1, in addition to the above-described configuration, the control circuit unit 10 has an external input terminal 17 (for connecting the external device (the USB tuner 50 in the first embodiment) to the digital television 100 ( USB port), a control unit 18 comprising a CPU for controlling the entire digital television 100, a memory unit 19 for storing (recording) a control program, a channel number list 60 created in the apparatus, and the like, and a remote controller 55 A light receiving unit 20 is provided which receives a remote control signal from, converts the signal into an electrical signal, and gives a command to the control unit 18. In addition, each component of the control circuit unit 10 is connected to each other via a bus (transmission path) 21 so that a command signal from the control unit 18 and various data included in the TS can be exchanged with each other. Has been. The USB tuner 50 is an example of the “external device” and “second receiving unit” in the present invention.

  In addition, the USB tuner 50 as an external device is connected to a USB port of an electronic device (such as a personal computer) and receives power supply, so that an antenna provided in the main body and an internal tuner function, thereby enabling a TV. This is a receiving device (receiving terminal device) configured to be able to receive John broadcast waves. That is, similarly to the tuner 11 described above, it has a function of selecting a predetermined transmission channel and receiving a television broadcast wave for each broadcaster based on a command from the digital television 100 as a connection source. ing. Therefore, the television broadcast wave received via the USB tuner 50 is also configured to be output to the display screen unit 30 and the speaker 31 after various processes by the control circuit unit 10 are performed.

  Here, in the first embodiment, when the USB tuner 50 is connected to the digital television 100 by the user while the television program is being viewed by the digital television 100, the control unit 18 performs the following processing operation. It is configured to be able to do. In other words, the current TS sent from each broadcaster can be sequentially scanned while sequentially changing the reception frequency of the USB tuner 50 based on a command from the control unit 18. At this time, the control unit 18 is configured to automatically scan the current TS using the USB tuner 50, triggered by the connection of the USB tuner 50 to the external input terminal 17. Also, as a result of scanning, the service information (SI) for each broadcaster that the tuner 11 has scanned and recorded in the memory unit 19 in the past, and the current broadcaster that has been scanned by the USB tuner 50 If it is determined that there is a difference between the service information (SI) and the service information (SI), the service information (SI) has been updated from the past time (previously scanned) at the corresponding broadcaster. It is configured to notify the user of guidance information indicating that. On the other hand, when it is determined that there is no difference from the past service information (SI), the above-described guidance information is not notified.

  Here, the guidance information notified when it is determined that there is a difference from the past service information (SI) will be described. Specifically, a notification screen 70 as shown in FIG. 3 is configured to be displayed on the display screen unit 30 as guide information. In other words, the notification screen 70 is configured to display a message 71 “... there is a possibility that a new viewable program has been added. Do you want to auto-preset?”. As a result, the user sets the channel number list 60 created by the apparatus main body in the past according to the data update on the broadcaster side to the latest service information (SI) regarding the device settings of the apparatus main body. It becomes possible to grasp the present situation that it is necessary to recreate based on it. The notification screen 70 is displayed so as to overlap the screen of the currently displayed television program using the OSD function of the control circuit unit 10.

  Further, the notification screen 70 is provided with three selection buttons (72 to 74) for selecting a user operation on the message 71. The “OK” button 72 is a button selected by the user when the update process is permitted. The “Cancel” button 73 is a button that the user selects when the update process is not performed. When the “Cancel” button 73 is selected, the notification screen 70 is erased from the screen and the TV program is displayed. The display is configured to be continued. The “option” button 74 is a button provided to update the channel number list 60 based on a certain condition, and will be described in detail later.

  Therefore, when the user who views the notification screen 70 in the display screen unit 30 selects the “OK” button 72 for operating the remote controller 55 to execute the update process, the latest updated for each broadcaster is displayed. A process for reconstructing the channel number list 60 based on the service information (SI) is performed. The process of reconstructing the channel number list 60 may be referred to as “auto preset” for the device. The auto preset is configured so that the process is completed by overwriting and storing the reconfigured channel number list 60 in the memory unit 19. Here, the process (auto-preset operation) by the control unit 18 that reconstructs the channel number list 60 and overwrites and saves it in the memory unit 19 corresponds to the “update process” of the present invention.

  Further, in the first embodiment, when the channel number list 60 is reconstructed with the press of the “OK” button 72 (operation in which the user selects and determines the button on the screen) as a trigger, the reception of television broadcast waves is performed. A television program is displayed on the display screen unit 30 in a state where the destination is temporarily switched from the tuner 11 to the USB tuner 50 (see FIG. 1). Therefore, while the USB tuner 50 has a temporary reception function, the broadcaster sequentially scans the current TS being transmitted by each broadcaster while the control unit 18 sequentially changes the reception frequency of the tuner 11 of the apparatus main body. The service information (SI) included in each TS is obtained. The channel number list 60 (see FIG. 2) is reconstructed based on the EIT included in each acquired service information (SI).

  In the first embodiment, when the above-described channel number list 60 is reconstructed, the service information (SI) for each broadcaster acquired through the tuner 11 at the past time and the current USB tuner 50 The channel number list 60 is reconstructed based on the difference (difference) when the service information (SI) for each broadcaster automatically acquired through the USB tuner 50 is compared when the is connected. It is possible to cause the tuner 11 to perform scanning for this purpose.

  The function in which the tuner 11 performs the scanning operation by paying attention to the difference obtained by comparing the service information (SI) is realized by selecting the “option” button 74 (see FIG. 3) on the notification screen 70. That is, when the user clicks the “option” button 74, a notification screen 80 as shown in FIG.

  Specifically, the notification screen 80 includes a “scan only added CH” button 81, a “scan only deleted CH” button 82, a “scan only changed CH” button 83, and a “full scan” button 84. Is provided. When the user selects the “scan only additional CH” button 81, the broadcaster with respect to the previous channel number list 60 among the scanning results obtained by the control unit 18 (difference obtained by comparing service information (SI)). The channel number list 60 is reconstructed by adding only newly added channel numbers on the side. Further, when the user selects the “scan only deleted CH” button 82, only the channel number deleted on the broadcaster side from the previous channel number list 60 is deleted from the scanning result obtained by the control unit 18. Thus, the channel number list 60 is configured to be reconstructed. In addition, when the user selects the “Change CH scan only” button 83, the channel number list 60 is reconstructed based on the complete difference obtained by adding “addition” and “deletion”. Has been. When the user selects the “full scan” button 84, the same processing as when the “OK” button 72 (see FIG. 3) on the notification screen 70 is selected is executed. In addition, after selecting the selection button (any one of 81 to 84), by pressing the “OK” button 85, a scanning operation for reconstructing the channel number list 60 is executed. ing. Further, when the “return” button 86 is pressed regardless of the selection button being pressed, the notification screen 80 disappears and only the notification screen 70 is displayed.

  As described above, in the first embodiment, only the difference between the service information (SI) for each broadcaster at the past time and the service information (SI) for each current broadcaster is based on the command of the control unit 18. As a result, the channel number list 60 can be reconstructed with reference to the EIT of the service information (SI) that has been updated.

  In the first embodiment, when the USB tuner 50 is connected to the digital television 100, the scanning operation by the control unit 18 (the current service information (SI) scanning operation by the USB tuner 50) is performed for one week. It is configured to be performed periodically. In addition, when one week or more has passed after the USB tuner 50 is connected, if the same USB tuner 50 is connected, a scanning operation is performed by the control unit 18 while the same USB tuner 50 is connected. If not, when another external device having not only the USB tuner 50 but another tuner (reception unit) is connected, the scanning operation by the control unit 18 (current service by the connected tuner is promptly performed). Information (SI) scanning operation). Thereby, it is possible to grasp the update status of service information (SI) more reliably.

  Next, with reference to FIGS. 1-5, the control operation by the control part 18 of the digital television 100 by 1st Embodiment is demonstrated. The control operation described below is a processing flow executed by the control unit 18 when the main power supply of the apparatus main body is on and the user is watching a television program.

  As shown in FIG. 5, first, in step S1, is the USB tuner 50 (see FIG. 1) as an external device connected to the external input terminal 17 (see FIG. 1) of the control circuit unit 10 (see FIG. 1)? It is judged by the control part 18 (refer FIG. 1) whether it is no. The determination in step S1 is repeated until the USB tuner 50 is connected to the external input terminal 17.

  If it is determined in step S1 that the USB tuner 50 is connected to the external input terminal 17, in step S2, the time (date and time) when the USB tuner 50 is connected is the previous time the USB tuner 50 or other external tuner is connected. The control unit 18 determines whether one week or more has elapsed from the time (date and time) when the device is connected. If it is determined in step S2 that one week or more has not elapsed, the present control when the external device is connected is terminated.

  On the other hand, if it is determined in step S2 that one week or more has elapsed, in step S3, TS is received while sequentially changing the reception frequency of the externally connected USB tuner 50 based on a command from the control unit 18. Scanning is performed. Thereby, the current TS that is individually transmitted (distributed) from each broadcaster is sequentially scanned, and service information (SI) for each broadcaster included in the TS is acquired. At this time, individual service information (SI) scanned using the USB tuner 50 is temporarily stored in the memory unit 19 of the control circuit unit 10.

  In step S4, the service information (SI) for each broadcaster that the digital television 100 has scanned in the past (one week ago) and recorded in the memory unit 19 (see FIG. 1), and the above-described service information (SI). The control unit 18 compares the current service information (SI) for each broadcaster scanned by the USB tuner 50 in step S3.

  In step S5, the control unit 18 determines whether or not there is a difference in service information (SI) for each broadcaster between one week ago and the present. If it is determined in step S5 that there is no difference in the scanning result, this control is terminated. That is, there is no need to update (reconstruct) the channel number list 60 (see FIG. 2) stored in the memory unit 19, and the user selects a television program using the existing channel number list 60 as it is. can do.

  On the other hand, if it is determined in step S5 that there is a difference in the service information (SI) for each broadcaster between the time point before one week and the present time, in step S6, the command of the control unit 18 is set. Based on this, the guide information is notified to the user.

  That is, in the first embodiment, a notification screen 70 as shown in FIG. 3 is displayed on the display screen unit 30. Therefore, a user who is watching a television program sees the notification screen 70 (message 71) output from the OSD unit 16 (see FIG. 1), and a television program that can be viewed by the digital television 100 is added. You will know the situation. As a result, the user operates a selection button (any one of 72 to 74) provided on the notification screen 70 and inputs an instruction to the digital television 100.

  That is, in step S7, the control unit 18 determines whether or not the user has operated the selection button (any one of 72 to 74). If it is determined in step S7 that the user has selected the “cancel” button 73, the control is terminated.

  On the other hand, if it is determined in step S7 that the user has selected the “OK” button 72, in step S8, the tuner 11 (see FIG. 1) inside the apparatus main body is used based on a command from the control unit 18. The current TS individually transmitted from each broadcaster is sequentially scanned, and service information (SI) included in the TS for each broadcaster is acquired.

  At this time, in the first embodiment, the television program is displayed on the display screen unit 30 (see FIG. 1) in a state where the receiver of the television broadcast wave is temporarily switched from the internal tuner 11 to the USB tuner 50. At the same time, the control unit 18 sequentially scans the current TS being transmitted by each broadcaster while sequentially changing the reception frequency of the tuner 11, thereby obtaining service information (SI) included in each TS.

  When step S8 is executed, if it is determined in step S7 that the user has selected the “option” button 74, a notification screen 80 as shown in FIG. The Then, when the user presses a selection button (any one of 81 to 84), further instructions regarding the scanning operation by the tuner 11 in step S8 are input.

  Subsequently, in step S9, the channel number list 60 (see FIG. 2) is reconstructed based on the service information (SI) included in the TS scanned in step S8. Then, the reconfigured channel number list 60 is overwritten and saved in the memory unit 19 to complete the “auto preset”.

  Thereafter, in step S <b> 10, the time (date and time) when the “auto preset” is performed is stored in the memory unit 19. In step S11, a notification screen (not shown) for notifying the user that “auto-preset” has been completed is displayed. As a result, the user who is watching the television program knows that the channel number list 60 has been updated to the latest state. By not displaying the notification screen after a predetermined time (for example, 10 seconds) has elapsed, this control when the external device is connected is terminated.

  In the first embodiment, as described above, the program information (PSI) for each broadcaster acquired via the tuner 11 and the program information (PSI) for each broadcaster acquired via the USB tuner 50 are used. ), The program information is updated by the broadcaster when it is determined that the program information acquired via the tuner 11 and the program information acquired via the USB tuner 50 are different. By providing the control unit 18 that performs control for notifying the user of the notification screen 70 indicating that the user is present, the user can set the current device setting state of the digital television 100 based on the notified notification screen 70. Can be surely grasped. Thereby, the user can perform an appropriate operation on the digital television 100.

  In the first embodiment, when the control unit 18 determines that the program information acquired via the tuner 11 is different from the program information acquired via the USB tuner 50 connected to the apparatus main body. Further, by configuring the notification screen 70 so as to notify the user, the user can effectively use the external device (USB tuner 50) connected to the digital television 100 to digitally The current state of the television 100 can be grasped. Further, it is possible to easily grasp the device setting state of the digital television 100 by effectively using the external input terminal 17 provided in the digital television 100.

  Further, in the first embodiment, the control unit 18 is acquired via the tuner 11 inside the apparatus body by causing the control unit 18 to perform scanning while sequentially changing the reception frequency of the USB tuner 50 externally connected to the apparatus body. The program information for each broadcaster and the program information for each broadcaster acquired through the USB tuner 50 are compared, and the program information acquired through the tuner 11 and the USB tuner 50 are compared. When it is determined that the acquired program information is different, the reception function of the tuner 11 that is originally built in the digital television 100 is configured such that the notification screen 70 is controlled to notify the user. The current program information is scanned for each broadcaster using the externally connected USB tuner 50 in a state where the program is continued without interruption. It is possible to, minutes uninterrupted reception function of the tuner 11, it is possible to continue viewing the TV program without any influence on the user.

  In the first embodiment, the control unit 18 uses the service information (SI) in the program information (PSI) to connect to the SI for each broadcaster acquired through the tuner 11 and the apparatus body. The reception screen 70 is configured to perform control for notifying the user of the notification screen 70 when it is determined that the SI for each broadcaster acquired via the USB tuner 50 is different. By comparing the service information (SI) acquired through the sections, it is possible to easily determine whether the program information has been updated on the digital television 100 side. In particular, in the service information (SI), information on addition or deletion of channels (subchannels) for each broadcaster is defined in the EIT. Therefore, by comparing the service information (SI), the digital television 100 It is possible to reliably grasp the current device setting status.

  In the first embodiment, the notification screen 70 is based on the service number (SI) acquired via the USB tuner 50 and the channel number list based on the service information (SI) acquired via the tuner 11. A message 71 for inquiring the user whether or not to perform update processing to be replaced with the channel number list is included, and the control unit 18 determines whether or not to perform update processing based on the user's operation on the message 71. Whether or not to update the channel number list by performing the control is directly related to whether or not the number of television programs that can be viewed by the user increases, so the notification screen 70 is displayed on the channel. By including a message 71 for inquiring whether or not to update the number list, the user's attention is ensured. With Kitsukeru, it is possible to perform an accurate judgment on the device setting of the digital television 100 to the user.

  Further, in the first embodiment, when performing the update process, the control unit 18 causes the USB tuner 50 to receive a digital television broadcast wave and display it on the display screen unit 30, and sequentially changes the reception frequency of the tuner 11. The tuner 11 built in the digital television 100 is configured to create a channel number list based on the program information updated by the broadcaster and perform the update process by performing the scanning while Since scanning is performed using the current program information, the current program information can be acquired more reliably and quickly. On the other hand, by using the externally connected USB tuner 50, digital television broadcast waves can be received even temporarily, so that even when the tuner 11 is scanning, the user can watch TV programs. It can be easily continued.

  In the first embodiment, when the control unit 18 performs the update process, the difference when the program information acquired through the tuner 11 and the program information acquired through the USB tuner 50 are compared. By using the tuner 11 for scanning, the tuner 11 is configured to perform scanning to create a channel number list based on the updated program information by the broadcaster. Unlike the case where the program information is acquired by sequentially receiving broadcast waves transmitted from all broadcasters regardless of whether they are updated or not, program information transmitted from broadcasters that are updated or not It is possible to create a channel number list based on the updated program information by selectively acquiring only the program information. As a result, the burden on the control unit 18 related to the scanning operation can be reduced, and the time required for creating the channel number list can be shortened.

  Further, in the first embodiment, the control unit 18 performs scanning while sequentially changing the program information acquired via the tuner 11 and the reception frequency of the externally connected USB tuner 50 every week. By comparing the program information acquired in this way and determining whether or not the program information has been updated by the broadcaster, the control unit 18 does not compare the old and new program information. Unlike the case where it is periodically performed, it is possible to reliably grasp whether or not the program information is updated by the amount that the program information comparison process is periodically performed every week. That is, as the probability of overlooking that the program information has been updated is reduced, it is possible to always notify the user of reliable information (device setting state).

  In the first embodiment, when the control unit 18 determines that the program information acquired via the tuner 11 is different from the program information acquired via the USB tuner 50, the notification screen 70 is displayed. By configuring the display screen unit 30 so as to notify the user of the notification screen 70, the current device setting state of the digital television 100 is displayed via the display screen unit 30. Can be surely notified.

(Second Embodiment)
The configuration of the HDD recorder 200 according to the second embodiment of the present invention will be described with reference to FIG. 2, FIG. 3, FIG. 5, and FIG. In the second embodiment, a case where the present invention is applied to an HDD recorder 200 which is an example of a broadcast receiving apparatus will be described.

  As shown in FIG. 6, the HDD recorder 200 according to the second embodiment of the present invention includes a control circuit unit 210 built in the apparatus main body and a remote controller provided for operating the HDD recorder 200 from a position away from the user. 255.

  Further, the HDD recorder 200 is configured to be able to receive a television broadcast wave transmitted from each broadcaster by being connected to the antenna 40 via the antenna cable 41. Further, the HDD recorder 200 is configured such that an external device (digital television 250 in the second embodiment) is connected via an external input terminal 217 provided in the control circuit unit 210. The digital television 250 is an example of the “external device” in the present invention.

  The control circuit unit 210 includes a tuner 211 that selects a predetermined transmission channel and receives a television broadcast wave for each broadcaster, and an OFDM demodulation unit that demodulates the received television broadcast wave into a digital signal. 212, a TS decoder 213 that decodes the encoded digital signal (TS) after demodulation, a video processing unit 214 and an audio processing unit that perform various processes relating to each of the video signal and the audio signal decoded by the TS decoder 213 215 and an OSD unit 216 are provided. The tuner 211 is an example of the “first receiver” in the present invention.

  In addition to the above-described configuration, the control circuit unit 210 includes an external input terminal 217 for connecting the digital television 250 as an external device to the HDD recorder 200 and a CPU, and controls the entire HDD recorder 200. A control unit 218, a memory unit 219, a light receiving unit 220, and an HDD unit (hard disk drive unit) 221 that records a television program received by the tuner 211 in a state of being converted into a recordable data format are provided. . In addition, each component of the control circuit unit 210 is connected to each other via a bus 222 so that a command signal from the control unit 218 and various data included in the TS can be exchanged with each other.

  Therefore, the HDD recorder 200 has a function of recording the television program received by the tuner 211 in the HDD unit 221, while the television broadcast wave received by the tuner 211 is transmitted via the bus 222 and the external input terminal 217 to the digital television. John 250 can be displayed.

  That is, in the HDD recorder 200, similarly to the function of the digital television 100 according to the first embodiment, based on the SI included in the TS sent from each broadcaster when a television broadcast wave is received, A channel number list 60 (see FIG. 2) that can be selected by the user is created. That is, when the user connects the apparatus main body to the antenna 40 for the first time, the TS sent from each broadcaster is sequentially scanned while sequentially changing the reception frequency of the tuner 211 according to a command from the control unit 218. Thus, the channel number list 60 is configured in advance in the apparatus main body based on the SI (EIT) included in each TS. As a result, when the user selects a channel via the remote controller 255 or the like, the television broadcast wave corresponding to the selected channel number is received by switching the reception frequency of the tuner 211 based on the channel number list 60. It is possible to do.

  Similarly to the tuner 211 described above, the digital television 250 incorporates a tuner 251 that selects a predetermined transmission channel and receives a television broadcast wave for each broadcaster. The tuner 251 is an example of the “second receiving unit” in the present invention.

  Here, in the second embodiment, when the user connects the digital television 250 to the HDD recorder 200 while the television program is being viewed by the HDD recorder 200, the control unit 218 performs the following processing operation. It is configured to be possible. In other words, based on a command from the control unit 218, the current TS transmitted from each broadcaster can be sequentially scanned while sequentially changing the reception frequency of the tuner 251 of the digital television 250. . At this time, the control unit 218 is configured to automatically perform scanning of the current TS using the tuner 251 with the tuner 251 connected to the external input terminal 217 as a trigger. Also, as a result of scanning, the service information (SI) for each broadcaster that the tuner 211 has scanned and recorded in the memory unit 219 in the past, and the current service information for each broadcaster that has been scanned by the tuner 251 If it is determined that there is a difference between the two (SI), the service information (SI) has been updated from the past point in time (at the time of the previous scan) at the corresponding broadcaster. The notification screen 70 shown is configured to be notified to the user via the digital television 250.

  That is, also in the second embodiment, the notification screen 70 as shown in FIG. 3 is configured to be displayed on the display screen unit 30 of the digital television 250.

  Therefore, when the user who has viewed the notification screen 70 in the display screen unit 30 operates the remote controller 255 and selects the “OK” button 72, the latest service information (SI) updated for each broadcaster is used. Thus, processing for reconstructing the channel number list 60 is performed. Here, the process (auto-preset operation) in which the channel number list 60 is reconstructed by the control unit 218 and overwritten in the memory unit 219 corresponds to the “update process” of the present invention.

  In the second embodiment, when the channel number list 60 is reconstructed based on the user's operation, the television broadcast wave receiving destination is temporarily switched from the tuner 211 to the tuner 251 (see FIG. 6). The television program being viewed is displayed on the display screen unit 30. Then, while the tuner 251 has a temporary reception function, the control unit 218 sequentially changes the reception frequency of the tuner 211 inside the apparatus main body, and sequentially scans TS currently being transmitted from each broadcaster, The service information (SI) included in the TS is acquired. The channel number list 60 (see FIG. 2) is reconstructed based on the EIT included in each acquired service information (SI).

  Other configurations and functions of the HDD recorder 200 according to the second embodiment are substantially the same as the other configurations and functions of the digital television 100 shown in the first embodiment. The control operation executed by the control unit 218 when the digital television 250 is externally connected to the HDD recorder 200 according to the second embodiment is also the control operation executed by the control unit 18 described in the first embodiment. (Processing flow shown in FIG. 5) is substantially the same.

  In the second embodiment, as described above, program information (PSI / SI) for each broadcaster acquired through the tuner 211 and each broadcaster acquired through the tuner 251 of the digital television 250. When it is determined that the program information acquired via the tuner 211 is different from the program information acquired via the tuner 251 by comparing the program information (PSI) of By providing a control unit 218 that controls to notify the user of a notification screen 70 indicating that the information has been updated, the user can set the current device setting of the HDD recorder 200 based on the notified notification screen 70. Can be ascertained reliably. As a result, the user can perform an appropriate operation on the HDD recorder 200.

  In the second embodiment, the control unit 218 determines that the program information acquired via the tuner 211 is different from the program information acquired via the tuner 251 of the digital television 250 connected to the apparatus main body. By configuring the notification screen 70 so as to notify the user when the determination is made, the user effectively uses the external device (digital television 250) connected to the HDD recorder 200. The current state of the HDD recorder 200 can be grasped. Further, the external input terminal 217 provided in the HDD recorder 200 can be effectively used to easily grasp the device setting state of the HDD recorder 200.

  Further, in the second embodiment, the control unit 218 is scanned via the tuner 211 in the apparatus body by causing the control unit 218 to perform scanning while sequentially changing the reception frequency of the digital television 250 connected to the apparatus body. The program information for each broadcaster and the program information for each broadcaster acquired through the digital television 250 are compared, and the program information acquired through the tuner 211 and acquired through the digital television 250. When it is determined that the received program information is different, the reception function of the tuner 211 originally built in the HDD recorder 200 is interrupted by controlling the notification screen 70 to notify the user. The current program information is broadcast using the externally connected digital television 250 in a state of being continued without being It is possible to scan for each skill, minutes uninterrupted reception function of the tuner 211, it is possible to continue viewing the TV program without any influence on the user.

  In the second embodiment, when performing the update process, the control unit 218 causes the digital television 250 to receive and display a digital television broadcast wave, and performs scanning while sequentially changing the reception frequency of the tuner 211. By creating the channel number list 60 based on the program information updated by the broadcaster and performing the update process, the tuner 211 incorporated in the HDD recorder 200 is used for scanning. Therefore, the current program information can be acquired more reliably and quickly. On the other hand, by using the externally connected digital television 250, it is possible to receive digital television broadcast waves even temporarily, so that even if the tuner 211 is scanning, the user can watch the television program. It can be easily continued.

  In the second embodiment, when the control unit 218 determines that the program information acquired via the tuner 211 is different from the program information acquired via the digital television 250, the notification screen 70 is displayed. By configuring the digital television 250 to notify the user of the notification screen 70, the current device setting state of the HDD recorder 200 is indicated to the user via the digital television 250. You can be surely notified.

  The remaining effects of the second embodiment are similar to those of the aforementioned first embodiment.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the first and second embodiments described above, the “broadcast receiving apparatus” of the present invention is connected to the terrestrial digital broadcast and satellite digital via the antenna installed in a house or the like. Although an example configured to receive a television broadcast wave including both broadcast formats is shown, the present invention is not limited to this. In the present invention, the broadcast receiving apparatus may be configured to receive a digital television broadcast wave via the first receiving unit while being connected to a cable line (including an optical cable line (including an Internet line)). .

  In the first and second embodiments, the “second receiver” of the present invention for inputting a television broadcast wave from the outside to the “broadcast receiver” of the present invention is an antenna attached to the main body. Although an example in which radio waves are received via the network is shown, the present invention is not limited to this. In the present invention, the second receiving unit may be configured to receive a digital television broadcast wave and input it to the broadcast receiving device while being connected to a cable line (including an optical cable line (Internet line)). Good.

  In the first embodiment, the USB tuner 50 is used as the “external device” of the present invention. However, the present invention is not limited to this. In the present invention, when the external input terminal 17 of the digital television 100 includes a card slot corresponding to the Express Card standard, the second receiver may be configured using a card-type tuner. Alternatively, as the “external device” of the present invention, the HDD recorder 200 used in the second embodiment may be connected. If a digital television broadcast wave can be received, a DVD recorder other than the HDD recorder may be used. A device such as a BD recorder or a set top box (signal conversion device) may be connected. In addition, not only one external device but also two or more external devices may be connected to the digital television 100.

  In the first and second embodiments, the example in which one “first receiving unit” is provided in the “broadcast receiving apparatus” of the present invention is shown, but the present invention is not limited to this. In the present invention, both the first receiving unit and the second receiving unit may be provided inside the main body of the broadcast receiving apparatus.

  In the first embodiment, when the channel number list 60 is reconstructed, the television broadcast wave reception destination is temporarily switched from the tuner 11 to the USB tuner 50, and then each tuner 11 is used. Although an example has been described in which the broadcaster is configured to sequentially scan TSs being transmitted, the present invention is not limited to this. In the present invention, when the channel number list 60 is reconstructed, the TS being sent by each broadcaster is sequentially scanned using the USB tuner 50 while the receiver of the television broadcast wave is fixed to the tuner 11. You may comprise.

  In the first embodiment, the scanning operation when the USB tuner 50 is connected to the digital television 100 (the current service information (SI) scanning operation by the USB tuner 50) is performed every week. However, the present invention is not limited to this. In the present invention, the scanning operation may be performed every predetermined period other than one week, for example, every third day, every fifth day, every other month, or the like.

  In the first embodiment, the notification information 70 is used to notify the user of the guidance information to be notified when there is a difference with the past service information (SI) by the scanning operation by the USB tuner 50. However, the present invention is not limited to this. In the present invention, the guidance information (contents of the message 71) may be configured to notify the user by outputting sound from the speaker 31, or at the same time when the notification screen 70 is displayed on the display screen unit 30. You may comprise so that a sound may be output from the speaker 31 and a user may be notified. Here, when notifying only by sound, for example, after the user operates the remote controller 55 to start a menu program (setting screen) for setting the device of the digital television 100, the notification screen 70 or the notification screen 80 is displayed. The channel number list 60 can be reconstructed (update process) via a dialog screen similar to the above.

  In the first and second embodiments, the tuner 11 (211) scans and records the service information (SI) for each broadcaster recorded in the memory unit 19 (219) at the past time, and the USB type. Although the tuner 50 (tuner 251) is compared with the current service information (SI) for each broadcaster scanned by the tuner 50, an example is shown in which it is determined whether or not the program information is updated. Not limited. In the present invention, before and after an external device is connected using an EPG (electronic program guide) that is independently created by the digital television 100 or the HDD recorder 200 based on service information (SI) for each broadcaster. It may be configured to determine whether or not the program information sent by the current broadcaster is updated by comparing the old and new EPG.

  In the first and second embodiments, the channel number list 60 is based on PSI / SI (program sequence information) defined in ARIB STD-B10, which is a standard for EPG encoding in the digital broadcasting system in Japan. Although an example of performing reconstruction is shown, the present invention is not limited to this. In other words, the channel number list may be reconstructed based on program arrangement information defined in DVB-SI, which is an EPG encoding standard for digital broadcasting systems in the European region. Alternatively, the channel number list may be reconstructed based on program arrangement information defined in ATSC-SI, which is an EPG encoding standard in the digital broadcasting system in the US region. Furthermore, it is possible to reconfigure the channel number list based on the “program information” of the present invention in accordance with the standard of the digital broadcasting system operated in the regions other than the regions (countries) described above. It is.

11, 211 Tuner (first receiver)
18, 218 Control unit 30 Display screen unit (display device)
50 USB tuner (external device, second receiver)
60 Channel number list 70 Notification screen (guidance information)
71 Message 100 Digital Television (Broadcast Receiver)
200 HDD recorder (broadcast receiving device)
250 Digital television (external equipment, display device)
251 tuner (second receiver)

Claims (9)

A first receiving unit provided in the apparatus main body for receiving a digital television broadcast wave including program information transmitted from each broadcaster;
The program information for each broadcaster acquired via the first receiver and the second receiver provided separately from the first receiver and capable of receiving the digital television broadcast wave. It is determined that the program information acquired via the first receiver is different from the program information acquired via the second receiver by comparing the broadcast program information for each broadcaster And a control unit that performs control for notifying a user of guide information indicating that program information has been updated in the broadcaster. The second receiving unit is provided in an external device configured to be connectable to the apparatus main body,
The control unit is configured such that the program information acquired via the first receiving unit is different from the program information acquired via the second receiving unit of the external device connected to the apparatus main body. The broadcast receiving apparatus according to claim 1, wherein the broadcast receiving apparatus is configured to perform control to notify the user of the guidance information when the determination is made.   The control unit is acquired via the first receiving unit in the apparatus main body by performing scanning while sequentially changing the reception frequency of the second receiving unit of the external device connected to the apparatus main body. And comparing the program information for each broadcaster and the program information for each of the broadcasters acquired via the second receiver, and the program information acquired via the first receiver 3. The broadcast according to claim 2, configured to perform control for notifying the user of the guidance information when it is determined that the program information acquired via the second reception unit is different. 4. Receiver device. The program information transmitted from each broadcaster includes program arrangement information possessed by a transport stream constituting the digital television broadcast wave,
The control unit includes the program arrangement information for each broadcaster acquired through the first receiving unit and the second receiving unit of the external device connected to the apparatus main body. 4. The broadcast receiving apparatus according to claim 2, wherein the broadcast receiving apparatus is configured to perform control for notifying a user of the guidance information when it is determined that the program arrangement information for each broadcaster is different. It is configured to create a channel number list that can be selected by the user based on the program information for each broadcaster,
The guide information includes an update process for replacing a channel number list based on the program information acquired via the first receiving unit with a channel number list based on the program information acquired via the second receiving unit. Including a message to ask the user whether to do so,
The broadcast receiving apparatus according to claim 4, wherein the control unit is configured to perform control to determine whether to perform the update process based on a user operation on the message.   The controller, when performing the update process, causes the second receiver to receive the digital television broadcast wave and display it on a display device, and scans while sequentially changing the reception frequency of the first receiver. The broadcast receiving apparatus according to claim 5, wherein the broadcast receiving apparatus is configured to perform the update process by creating a channel number list based on the program information updated by the broadcaster.   The control unit, when performing the update process, to the difference when comparing the program information acquired through the first receiving unit and the program information acquired through the second receiving unit Based on the above, it is configured to perform control for creating the channel number list based on the updated program information by the broadcaster by causing the first receiving unit to perform scanning. The broadcast receiving apparatus described.   The control unit sequentially changes the program information acquired via the first reception unit and the reception frequency of the second reception unit of the external device connected to the apparatus main body for each predetermined period. The control unit is configured to perform control to determine whether or not the program information has been updated by the broadcaster by comparing the program information acquired by performing scanning. The broadcast receiving apparatus of any one of Claims.   When the control unit determines that the program information acquired through the first receiving unit is different from the program information acquired through the second receiving unit, the guide information is displayed on the display device. The broadcast receiving apparatus according to claim 1, wherein the broadcast receiving apparatus is configured to perform control for notifying a user of the guidance information by displaying the information on a user.

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