JP2013183210A - Broadcast receiver and broadcast reception method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a convenient broadcast receiver 10.SOLUTION: The broadcast receiver 10 comprises: a receiving part 11 which receives digital television broadcast signals; a signal processing part 12 for processing the digital television broadcast signals; a recording control part 13 which controls a video recorder 20 to record a source signal from the signal processing part 12; and an announcement control part 17 which announces a reception fault when a source signal normal as a source signal cannot be outputted to the video recorder 20, and avoids announcement when the digital television broadcast signals are not transmitted or broadcast is paused.

Description

  Embodiments described herein relate generally to a broadcast receiving apparatus and a broadcast receiving method for receiving a digital television broadcast.

  The television broadcast receiver cannot receive normally when a reception failure occurs due to rain or the like. When a reception failure occurs during the broadcast of a program reserved for recording, at least it is preferable from the viewpoint of user convenience to notify that normal recording has not been performed due to the reception failure.

  In recent years, a broadcast receiving apparatus has been developed that continuously receives a program of a designated channel and continuously records all programs on a connected recording apparatus. A broadcast receiving apparatus having six tuners loop-records all programs for six hours on six channels on a recording apparatus. Loop recording is based on a so-called overwrite method in which new data is recorded while erasing old data. The user can view the program he / she wants to watch from the broadcasted programs within 30 hours after the broadcast ends.

  However, the broadcasting station may be in a wave-stopping state in which transmission of broadcast radio waves (digital television broadcast signals) is systematically stopped at midnight or the like for facility maintenance. Then, a broadcast receiving apparatus that continuously receives a signal at midnight will assume that a reception failure has occurred even if the wave has stopped, and notify the reception failure.

  For this reason, when the broadcast receiving apparatus notifies the reception failure, there is a possibility that the convenience of the user is adversely affected.

JP 2003-250111 A

  Embodiments of the present invention are intended to provide a convenient broadcast receiving apparatus and a convenient broadcast receiving method.

  A broadcast receiving apparatus according to an aspect of the present invention includes a receiving unit that receives a digital television broadcast signal, a signal processing unit that processes the digital television broadcast signal, and a source signal from the signal processing unit that is recorded on a recording device. A recording control unit that performs a notification of reception failure when a normal source signal cannot be output to the recording apparatus as the source signal, and a notification that does not perform the notification when the digital television broadcast signal is stopped or stopped And a control unit.

It is a block diagram of the television of an embodiment. It is a flowchart for demonstrating the flow of the process of the television of embodiment.

  Hereinafter, the broadcast receiving apparatus 10 of the embodiment will be described with reference to the drawings.

  As shown in FIG. 1, the broadcast receiving device 10 includes a receiving unit 11, a signal processing unit 12, a recording control unit 13, a recording device connecting unit 15, a display device connecting unit 14, and an input signal connecting unit 16. The notification control unit 17 is provided. The receiving unit 11 having a plurality of tuners 11 </ b> A to 11 </ b> D receives, for example, a digital television broadcast signal input from an antenna via the input signal connecting unit 16. A broadcast signal may be input from the input signal connection unit 16 via a network such as a cable or the Internet protocol network, or one tuner may be provided. The signal processing unit 12 processes the broadcast signal from the receiving unit 11. More precisely, the receiving unit 11 performs primary processing on the broadcast signal, and the signal processing unit 12 performs secondary processing on the primary processed broadcast signal to generate a source signal composed of an audio signal and a video signal, and a broadcast described later. Output information data.

  The recording device connection unit 15 is connected to a recording device 20 such as an HDD device, and the display device connection unit 14 is connected to a display device 30 as a display means and a speaker 31. The recording device connection unit 15 outputs a source signal from the signal processing unit 12 under the control of the recording control unit 13. Further, the source signal recorded in the recording device 20 is input to the recording device connection unit 15. A video signal is output from the display device connection unit 14 to the display device 30, and an audio signal is output to the speaker 31.

  Then, as will be described later, the notification control unit 17 notifies a reception failure when a normal source signal cannot be output from the recording device connection unit 15.

  The broadcast receiver 1 in which the broadcast receiving device 10, the recording device 20, the display device 30, and the speaker 31 are housed and integrated in the same housing is also one preferred embodiment.

  Here, the broadcast signal of the digital television broadcast by the MPEG-2 system prescribed | regulated to ARIB TR-B14 which is a standard of the Japan Radio Industry Association (ARIB) is demonstrated. In digital broadcasting, a content unit provided by news or a drama is referred to as an event, and a unit in which a plurality of events are continuously organized in a time direction is referred to as a service. That is, an event corresponds to an analog broadcast program, and a service corresponds to an analog broadcast channel.

  A broadcast signal broadcast from a broadcast station includes a source signal including content information such as audio and video, and a broadcast information signal necessary for receiving the broadcast as multiplex transmission as prescribed TS (Transport Stream) data. Is done. The TS data is transmitted by being divided into packets, and an identifier (PID) is given to the head part of the packet. The PID indicates what each packet is transmitting. Since the same image or the like has the same PID, the broadcast receiving apparatus 10 can return to the state before the division using the PID.

  Broadcast information is described in various tables called PSI (Program Specific Information) and SI (Service Information), and is inserted into TS data as a packet having a PID different from that of a source signal or the like. Examples of the table include an event information table (EIT: Event Information Table), a PAT (Program Association Table), and a PMT (Program Map Table).

  The EIT describes information about the program such as the title of the program (event) scheduled to be broadcast, the broadcast start date and time, and the program content. PAT designates the PID of a TS packet that transmits a signal constituting a program. The PAT designates the PID of the TS packet that transmits the PMT.

  The broadcast receiving apparatus 10 includes a service description table (SDT) that transmits information about a channel such as a channel (service) name and a broadcaster name, and a TOT (Time Offset Table) that transmits information on the current date and time. Etc. and EIT are used to create an electronic program guide (EPG). The user usually makes a recording reservation for a desired program by selecting a program based on the EPG.

  In addition, ARIB TR-B14's seventh edition, 8-6, also stipulates the handling of broadcast suspension. Here, the status of the broadcast signal is classified into three types: broadcast, pause, and no signal (stop). The term “resting” means a state in which radio wave transmission is not stopped but a program that can be viewed by the user is not transmitted. It is stipulated that the service is described in the PAT when broadcasting, and the service is not described in the PAT when paused.

  Therefore, the notification control unit 17 can identify whether the service is being broadcast or not based on whether the service is described in the PAT.

  It is customary to stop unscheduled radio wave transmission due to a broadcast station accident or the like, and to stop the radio wave transmission systematically. In other words, the pause is used as a concept including a state where a viewable program is not transmitted and a state where radio wave transmission is stopped. However, in this specification, a state in which radio wave transmission is not stopped is referred to as pause along ARIB TR-B14, and a no-signal state in which radio wave transmission is stopped is referred to as wave stop.

Next, the flow of reception failure notification processing in the broadcast receiving apparatus 10 will be described using the flowchart of FIG. In addition, although it is the description about the following one service (channel), it is the same also in the case of a some service.
<Step S10>
First, the count time t of the timer is reset to zero.

<Step S11>
The notification control unit 17 confirms whether the EIT of the service (channel) for that time zone has already been acquired. When the EIT has not been acquired (S11: No), the notification control unit 17 determines that the wave is intentionally stopped. Note that the time period when the EIT has not been acquired is blank in the EPG, and program reservation recording for that channel is not possible.

  Even when the program cannot be normally received and the normal source signal cannot be output from the recording device connection unit 15, the notification control unit 17 does not notify the reception failure in the case of a wave stop (S11: No).

<Step S12>
When the EIT has been acquired (S11: Yes), it is determined whether or not the word “pause” is included in the program title (title value) described in the EIT. The program title can be described arbitrarily by the broadcast station, but in the case of a planned stoppage, the program title states that the broadcast may be suspended, suspended, or some areas may be suspended. There are many cases.

  In this case, for example, broadcast suspension is displayed as a program title in the time zone of the channel of the EPG. The program reservation recording using the EPG is not possible.

  Even if the notification control unit 17 cannot receive the program normally and cannot output a normal source signal from the recording device connection unit 15, the notification control unit 17 does not notify the reception failure in the case of a wave stop (S12: Yes).

  When the program title is, for example, a song program: a special feature of an inactive singer, the notification control unit 17 makes an incorrect determination. However, even if a reception failure occurs during the program, the notification is not performed.

<Step S13>
It is determined whether the PAT has been received. PAT is an important SI. If it is not received (S13: No), it is considered that a reception failure has occurred, so a reception failure notification is issued in step S14. When the reception failure notification is issued, for example, an issued tag is set in a memory (not shown) of the notification control unit 17.

<Step S14>
When the reception failure notification is issued, for example, when the user activates the display device 30, the notification is displayed on the screen. The announcement text has the following contents, for example.

Recording notifications may not be recorded properly due to the following reasons
・ Receiving interference (antenna misalignment, rain and snow, etc.)
・ Uncontracted for channels and programs
・ B-CAS card not inserted

  The user can know that the reason why the recording is not normally performed is a reception failure or the like, and there is no abnormality in the broadcast receiving apparatus 10 or the like.

<Step S15>
As already described, the notification control unit 17 can identify whether the broadcasting is in progress or not based on the presence / absence of the description of the service in the PAT based on the provisions of the ARIB TR-B14.

  In the case of a pause (S15: No), the notification control unit 17 does not notify the reception failure even if the program cannot be normally received and the normal source signal cannot be output from the recording device connection unit 15.

<Step S16>
If it is confirmed that the PAT is broadcasting (S15: Yes) but the PMT cannot be received (S16: No), it is considered that a reception failure has occurred. For this reason, a reception failure notification is issued in step S14.

<Step S17>
When the timer reaches 1 second (S17: Yes), the processing from S10 is performed again. That is, the processing of S11 to S16 is performed every second. The processing interval t can be determined as appropriate. However, even if the playback video is disturbed even for a short time, the user may misidentify as a failure. Therefore, the processing interval t is preferably set to 1 second or less.

  The reception failure notification is preferably issued only once for one event (program) even if the reception failure state continues for a long time. For example, when the notification issuance process is first performed in S14, the issued tag is set, and thereafter, the notification may not be issued in the same event, or the processes of S10 to S17 are omitted. Also good.

  In the conventional broadcast receiving apparatus, the reception failure notification issuance process is performed only in S13 to S16. For this reason, even if it was a planned stoppage, a notification was made when a PAT could not be obtained. For example, if a service that stops at midnight every day is continuously recorded, a reception failure notification is made every time the user turns on the switch every morning.

  On the other hand, in the broadcast receiving apparatus 10 according to the embodiment, the processing of S11 and S12 is performed before S13 to S16, so that the notification issuance processing is not performed in the case of a wave stop. For this reason, the broadcast receiving apparatus 10 is highly convenient because an erroneous reception failure notification is not performed.

  As is clear from the above description, the recording control unit 13 of the broadcast receiver 1 or the broadcast receiving device 10 causes the recording control unit 13 to record the source signal not in units of programs (events) but in units of time. The effect of the invention is significant when controlled. That is, when a recording reservation is made in units of programs based on EPG or the like, the wave is not stopped during recording. On the other hand, when receiving / recording with time designation such as 0:00 am to 6:00 am, there is a high possibility that the wave will stop during recording. Note that. Even when loop recording is performed continuously for 24 hours, it can be regarded as recording with time designation.

  In the above, the broadcast receiving apparatus 10 that receives a digital television broadcast by the MPEG-2 system has been described as an embodiment of the present invention. However, even for other types of digital television broadcasts, broadcast receivers that do not notify reception failures in the case of a stoppage or pause based on a broadcast information signal transmitted together with the source signal Obviously, it has the same effect as the receiving apparatus 10.

  That is, the embodiment is presented as an example, and is not intended to limit the scope of the invention. The embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. The embodiments are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Broadcast receiver, 10 ... Broadcast receiving apparatus, 11 ... Reception part, 12 ... Signal processing part, 13 ... Recording control part, 14 ... Display apparatus connection part, 15 ... Recording apparatus connection part, 16 ... Input signal connection part, 17 ... Notification control unit, 20 ... Recording device, 30 ... Display device, 31 ... Speaker.

Claims (5)

A receiver for receiving a digital television broadcast signal;
A signal processing unit for processing the digital television broadcast signal;
A recording control unit that causes a recording device to record a source signal from the signal processing unit;
Broadcast having a notification control unit that notifies reception failure when a normal source signal cannot be output to the recording device as the source signal, and does not perform notification when the digital television broadcast signal is stopped or stopped. Receiver device.   The notification control unit does not perform the notification when an event information table is not acquired from the digital television broadcast signal or when a pause is included in a program title of the event information table. The broadcast receiving apparatus described.   The broadcast receiving apparatus according to claim 1, wherein the recording control unit controls the recording apparatus to record the source signal not in units of programs but in units of time.   The broadcast receiving apparatus according to claim 1, further comprising display means for displaying the source signal. The receiver receives the digital television broadcast signal,
Processing the digital television broadcast signal by a signal processing unit;
The recording controller causes the recording device to record the source signal from the signal processor,
The broadcast control notifying the reception failure when the normal source signal as the source signal cannot be output to the recording device by the notification control unit, and not performing the notification when the digital television broadcast signal is stopped or stopped. Method.

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