JP2009088624A - Mobile receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile receiver for receiving one-segment broadcasting and effectively using the one-segment broadcasting in a simple manner in cooperation with a fixed receiver. <P>SOLUTION: The mobile receiver is provided with: an operation part for selecting stations of a fixed receiver to receive broadcasting for fixed reception; a transmission part for transmitting a remote control signal based on the operation signal from the operation part to the fixed receiver; a receiving part for receiving the one-segment broadcasting; a signal processing part for generating a video signal and an audio signal from the one-segment broadcasting received by the receiving part; an output part for outputting video or audio on the basis of the video signal or the audio signal generated by the signal processing part; a storage part for storing information on a channel selected in the fixed receiver; and a control part for causing, based on channel information stored in the storage part, the receiving part to receive the one-segment broadcasting provided by the channel. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a digital broadcast receiver, and more particularly to a mobile receiver capable of receiving a mobile reception broadcast (one-segment broadcast) included in a terrestrial digital broadcast.

In recent years, as a terrestrial digital broadcasting service, mobile reception broadcasting (commonly known as one-segment broadcasting) designed to be able to be stably received even by a mobile body such as a mobile phone has been started, and mobile reception that can receive one-segment broadcasting Devices (for example, mobile terminals such as mobile phones) are rapidly spreading.
In Japan's integrated service digital broadcasting-terrestrial (ISDB-T), a 1-channel, 6-MHz broadcast wave is divided into 13 segments, and one central segment is used for one-segment broadcasting. The remaining 12 segments are used for normal television broadcasting (fixed reception broadcasting).
For example, in high-definition broadcasting (HDTV), one program is broadcast using 12 segments. In addition, since standard-definition broadcasting (SDTV) requires four segments for one program, three programs can be broadcast simultaneously using 12 segments.

  In this one-segment broadcasting, a program having the same content as that of fixed reception broadcasting is broadcast simultaneously (so-called simultaneous broadcasting). In other words, in the one-segment broadcasting, the same program as the fixed reception broadcasting is provided in a low-resolution video (for example, QVGA (320 × 240 pixels)).

As a technology related to a mobile receiver capable of receiving one-segment broadcasting, for example, a remote control device of a fixed receiver (ordinary television receiver) is provided with a one-segment broadcasting reception function, and the one-segment broadcasting is received and viewed by the remote-control device. The technique to do is proposed (patent document 1).
According to the technique described in Patent Document 1, even if it is necessary to remove a seat while viewing a fixed reception broadcast program in the fixed reception device, the same program can be viewed by the one-segment broadcasting by the remote control device. Excellent in convenience.
JP 2004-128775 A

  However, in the technique described in Patent Document 1, when viewing a one-segment broadcast on a remote control device, the viewer needs to perform a channel selection operation after enabling the reception function of the remote control device. In other words, even if a fixed reception device receives a fixed reception broadcast of a specific channel and views a program, and wants to view the program on the remote control device, it is necessary to perform a tuning operation on the remote control device. It was.

Also, in the near future, the viewing style of 1Seg broadcasting will change if the restriction of 1Seg broadcasting as simultaneous broadcasting is lifted. For example, in the case of a baseball broadcast, it is conceivable that a video viewed from the viewpoint of a batter is provided in one-segment broadcasting. For example, in the case of a quiz program, it is conceivable that hints and answers are provided only by one-segment broadcasting.
In other words, supplementary content that makes it difficult for a program to be established if it is provided by fixed reception broadcasting, which can improve the interest of the program, that is, a program linked to the fixed reception broadcasting program is provided by one-segment broadcasting It is thought that it will become.

  An object of the present invention is to provide a mobile receiver capable of receiving a one-segment broadcast and capable of easily and effectively using the one-segment broadcast in cooperation with a fixed receiver.

In order to achieve the above object, the invention according to claim 1 is a mobile receiver.
An operation unit for selecting a fixed reception device capable of receiving a fixed reception broadcast included in the terrestrial digital broadcast;
A transmission unit for transmitting a remote control signal based on an operation signal from the operation unit to the fixed reception device;
A receiver for receiving a mobile reception broadcast included in the terrestrial digital broadcast;
A signal processing unit that generates a video signal and an audio signal from the mobile reception broadcast received by the receiving unit;
An output unit that outputs video or audio based on the video signal or audio signal generated by the signal processing unit;
A storage unit for storing information of a channel selected in the fixed reception device;
Based on the channel information stored in the storage unit, a control unit that causes the receiving unit to receive a mobile reception broadcast provided on the channel;
It is characterized by providing.

The invention according to claim 2 is the mobile receiver according to claim 1,
The storage unit stores channel information included in an operation signal from the operation unit.

The invention described in claim 3 is the mobile receiver according to claim 1 or 2,
The operation unit has an operation button for viewing a mobile reception broadcast in the mobile reception device,
The control unit causes the reception unit to receive a mobile reception broadcast when viewing of the mobile reception broadcast is enabled by the operation of the operation button.

The invention according to claim 4 is the mobile receiver according to any one of claims 1 to 3,
The program content provided by the mobile reception broadcast is different from the program content provided by the fixed reception broadcast.

The invention according to claim 5 is the mobile receiver according to any one of claims 1 to 4,
It is a remote control device attached to the fixed receiving device.

The invention according to claim 6 is a mobile receiver,
An operation unit for selecting a fixed reception device capable of receiving a fixed reception broadcast included in the terrestrial digital broadcast;
A transmission unit for transmitting a remote control signal based on an operation signal from the operation unit to the fixed reception device;
A receiver that is included in the digital terrestrial broadcast and receives a mobile reception broadcast having a program content different from that of the fixed reception broadcast;
A signal processing unit that generates a video signal and an audio signal from the mobile reception broadcast received by the receiving unit;
An output unit that outputs video or audio based on the video signal or audio signal generated by the signal processing unit;
A storage unit for storing channel information included in an operation signal from the operation unit;
Based on the channel information stored in the storage unit, a control unit that causes the receiving unit to receive a mobile reception broadcast provided on the channel;
With
The operation unit has an operation button for viewing a mobile reception broadcast in the mobile reception device,
The control unit causes the reception unit to receive a mobile reception broadcast when viewing of the mobile reception broadcast is enabled by the operation of the operation button.

According to the present invention, in a mobile receiver capable of receiving one-segment broadcasting, when viewing the one-segment broadcasting, the channel of the program being viewed on the fixed receiver is automatically selected, so that the one-segment broadcasting can be easily performed. And can be used effectively.
In the future, this is particularly effective when the restriction that the one-segment broadcasting is a simulcast is lifted and a program linked to the fixed reception broadcasting is provided by the one-segment broadcasting.

  The best mode for carrying out the mobile receiver according to the present invention will be described below with reference to the drawings. In the present embodiment, the mobile receiver according to the present invention is applied to a remote control device of a fixed receiver.

FIG. 1 is an external view showing a remote controller 1 as a mobile receiver according to the present invention and a television receiver as a fixed receiver 2 that can be remotely operated by the remote controller 1.
For example, a fixed-reception television receiver 2 such as a liquid crystal television is remotely operated for channel selection, volume adjustment, and the like by a remote control device 1. Further, the remote control device 1 can receive a one-segment broadcast included in the terrestrial digital broadcast and view a program.

As shown in FIG. 1, the remote control device 1 includes an operation unit 16 including, for example, a power button, a volume adjustment button, a numeric button for channel selection, and an LCD panel 151 that displays a one-segment broadcast video.
In the present embodiment, the operation unit 16 of the remote control device 1 includes a one-segment button 161 for viewing one-segment broadcasting. As the one-segment button 161 is operated, the remote control device 1 receives the one-segment broadcast, and the one-segment broadcast image is displayed on the LCD 151.
At this time, the channel of the program being viewed on the television receiver 2 is automatically set as the one-segment broadcasting channel received by the remote control device 1.

FIG. 2 is a block diagram showing a schematic configuration of the remote control device 1 according to the present embodiment.
As shown in FIG. 2, the remote control device 1 of the present embodiment includes an antenna 11, a one-segment broadcasting tuner unit, a TS separation unit 13, a decoding unit 14, an output unit 15, an operation unit 16, a control unit 17, a storage unit 18, and a transmission. The unit 19 is configured.

  The one-segment broadcasting tuner unit 12 includes, for example, an RF unit (not shown), an A / D conversion unit (not shown), a demodulation unit (not shown), and the like. The RF unit converts and amplifies a television broadcast signal (digital terrestrial broadcast) input from the antenna 11 into a one-segment broadcast baseband signal of a channel desired by the viewer and outputs the baseband signal. The A / D converter converts an analog signal into a digital (baseband) signal. The demodulator demodulates the baseband signal and outputs a transport stream signal (TS signal).

  Here, the transport stream is a PES (Packetized Elementary Stream) that is obtained by dividing an elementary stream (ES: Elementary Stream, encoded original video / audio data) into appropriate sizes and packetized. Is one of the transmission formats.

  The TS separation unit 13 separates the TS signal output from the one-segment broadcasting tuner unit 12 into encoded original video / audio data and other data (for example, program information). Then, the separated video data is output to the video decoder 141, and the audio data is output to the audio decoder 142.

The decoding unit 14 includes a video decoder 141 and an audio decoder 142. The decoding unit 14 decodes the digital video data or digital audio data output from the TS separation unit 13, converts the digital video data or digital audio data into analog video / audio data, and outputs the analog video / audio data.
Specifically, the video decoder 141 decodes the digital video data (for example, video data encoded in the H.264 format) output from the TS separator 13 and converts the decoded digital video data into an analog signal. Output analog video data. The audio decoder 142 decodes the digital audio data (for example, audio data encoded in AAC (Advanced Audio Cording) format) output from the TS separation unit 13, converts the decoded digital audio data into analog, and converts the analog audio into analog audio Output data.

  The output unit 15 includes a video display unit 151 such as an LCD (Liquid Crystal Display) and an audio output unit 152 such as a speaker, and outputs video or audio based on analog video data or analog audio data output from the decoding unit 14. To do.

As illustrated in FIG. 1, the operation unit 16 includes a plurality of operation buttons including a power button, a volume adjustment button, a channel selection number button, and the like. Then, based on the operation of the operation unit 16 by the viewer, an operation signal is output to the control unit 17.
The operation unit 16 also has a one-segment button 161 for viewing one-segment broadcasting on the LCD 151. When the one-segment button 161 is operated by the viewer, the one-segment broadcast video is displayed on the LCD 151.

  The transmission unit 19 transmits a remote control signal (infrared signal) based on the operation signal output from the operation unit 16 to the television receiver 2. The viewer can select a channel of the television receiver 2 by performing a channel selection operation using the operation unit 16 of the remote control device 1.

  The storage unit 18 is composed of, for example, a semiconductor memory such as a RAM or a ROM, and stores information on a channel selected in the television receiver 2. For example, when a channel selection operation is performed by the operation unit 16 of the remote controller 1, channel information included in the channel selection operation signal is stored.

The control unit 17 includes a CPU (Central Processing Unit) 171, a RAM (Random Access Memory) 172, and a ROM (Read Only Memory) 173.
For example, the CPU 171 reads out a processing program or the like stored in the ROM 173, develops it in the RAM 172, and executes it to control the entire remote control device 1. For example, when an operation signal is input from the operation unit 16, a remote control signal is transmitted from the transmission unit 19.
The RAM 172 expands the processing program executed by the CPU 171 in the program storage area in the RAM 172, and stores the processing result and the like generated when the processing program is executed in the data storage area.
The ROM 173 is composed of, for example, a semiconductor memory and stores a processing program, data, and the like in advance. The ROM 173 stores, for example, a channel information storage program for storing information on the channel being viewed on the television receiver 2 in the storage unit 18, a one-segment broadcast reception program for receiving the one-segment broadcast in the remote control device 1, and the like. Has been.

  In the present embodiment, the control unit 17 controls each block to receive the one-segment broadcasting and output the video / audio of the program provided by the one-segment broadcasting. At this time, by referring to the channel information stored in the storage unit 18, the one-segment broadcasting of the channel being viewed on the television receiver 2 is received. The one-seg broadcast reception process in the remote controller 1 will be described later.

As described above, the remote control device 1 according to the present embodiment includes the operation unit 16 for selecting a television receiver (fixed receiving device) 2 capable of receiving a fixed reception broadcast included in the terrestrial digital broadcast, The remote control signal based on the operation signal from the operation unit 16 is transmitted to the television receiver 2, the one-segment broadcast tuner unit 12 that receives the one-segment broadcast included in the terrestrial digital broadcast, and the one-segment broadcast tuner unit 12. TS separation unit 13 and decoding unit 14 that generate the original video signal or audio signal from the one-segment broadcasting, LCD 151 that outputs video based on the generated video signal, speaker 152 that outputs audio based on the audio signal, A storage unit 18 that stores information on the channel selected in the television receiver 2, and a storage unit 18 that stores the information. And based on the channel information is provided with a control unit 17 for receiving the one-segment broadcasting that is provided in the channel to the one-segment broadcast tuner unit 12.
The operation unit 16 includes an operation button (one-segment button) 161 for viewing the one-segment broadcast on the remote control device 1. Then, the control unit 17 causes the one-seg broadcast to be received when viewing of the one-seg broadcast is enabled by operating the one-seg button 161.

  Hereinafter, a method for receiving the one-segment broadcasting in the remote control device 1 will be specifically described. In the present embodiment, the one-segment broadcasting of the channel being viewed on the television receiver 2 is automatically received by the remote control device 1. Further, the program content of the one-segment broadcasting is, for example, content linked to the program content of the fixed reception broadcast provided on the same channel (different from the program content of the fixed reception broadcast).

  FIG. 3 is a flowchart illustrating an example of channel information storage processing for storing channel information in the storage unit 18. This processing is realized by the CPU 171 executing the channel information storage program in the ROM 173.

  In step S101, it is determined whether the television receiver 2 is turned on. And when it determines with the power supply of the television receiver 2 being ON, it transfers to step S102. When the power of the television receiver 2 is off, the process of step S101 is repeated until the power is turned on.

  In step S102, it is determined whether the channel selection operation of the television receiver 2 has been performed. For example, the determination is made based on a predetermined channel selection operation signal output to the control unit 17 by operating a numeric button of the operation unit 16 of the remote control device 1. When it is determined that the channel selection operation of the television receiver 2 has been performed, the process proceeds to step S103, and when it is determined that the channel selection operation has not been performed, the process proceeds to step S104.

  In step S <b> 103, channel information included in the operation signal output from the operation unit 16 of the remote control device 1 is stored in the storage unit 18. That is, information on the channel currently being viewed on the television receiver 2 is stored in the storage unit 18.

In step S104, it is determined whether the power of the television receiver 2 is turned off. If it is determined that the power of the television receiver 2 has been turned off, the process is terminated. If it is determined that the power has not been turned off, the process proceeds to step S102 and the process is repeated.
That is, the channel information in the storage unit 18 is updated every time a channel selection operation is performed until the power of the television receiver 2 is turned off, and the storage unit 18 is currently viewed on the television receiver 2. The information of the channel that is being stored is always stored.
Note that the channel information in the storage unit 18 is not erased even after the power of the television receiver 2 is turned off, and this is the initial value of the channel information when the power of the television receiver 2 is turned on. .

  FIG. 4 is a flowchart illustrating an example of the one-seg broadcast reception process when the remote control device 1 receives the one-seg broadcast. This process is realized by the CPU 171 executing the one-segment broadcast reception program in the ROM 173.

  In step S201, it is determined whether the one-segment button 161 of the remote control device 1 has been operated. If it is determined that the one-segment button 161 has been operated, the process proceeds to step S202. If it is determined that the one-segment button 161 has not been operated, the process of step S201 is repeated until the one-segment button 161 is operated.

In step S202, it is determined whether the television receiver 2 is turned on. And when it determines with the power supply of the television receiver 2 being ON, it transfers to step S203. If the power of the television receiver 2 is off, the process is terminated as it is. In the present embodiment, when a program is viewed on the television receiver 2, a one-segment broadcasting program linked to the program (a program that complements the program content of fixed reception broadcasting) is viewed on the remote control device 1. Therefore, the one-seg broadcast is not received when the power of the television receiver 2 is off.
In addition, it is good also as a structure which can receive 1 segment broadcast in the remote control apparatus 1 independently of the television receiver 2. FIG.

In step S203, channel information stored in the storage unit 18 is acquired. That is, channel information of a program currently being viewed on the television receiver 2 is acquired.
In step S204, the one-segment broadcasting of the acquired channel is received, predetermined signal processing is performed, and video / audio is output. For example, when an n-channel program is being viewed on the television receiver 2, the remote control device 1 receives an n-channel one-segment broadcast and outputs the video / audio of the program.

  In step S205, it is determined whether the channel selection operation of the television receiver 2 has been performed. For example, the determination is made based on a predetermined channel selection operation signal output to the control unit 17 by operating a numeric button of the operation unit 16 of the remote control device 1. When it is determined that the channel selection operation of the television receiver 2 has been performed, the process proceeds to step S203, and channel information is reacquired from the storage unit 18. That is, when a channel selection operation is performed during reception of the one-segment broadcast, the reception channel for the one-segment broadcast is changed in conjunction with the viewing channel in the television receiver 2.

  In step S206, it is determined whether the power of the television receiver 2 is turned off. If it is determined that the power of the television receiver 2 has been turned off, the process is terminated. If it is determined that the power has not been turned off, the process proceeds to step S204 to repeat the process. One-segment broadcasting is received by the remote control device 1 until the power of the television receiver 2 is turned off. When the power of the television receiver 2 is turned off, reception of the one-segment broadcasting is also terminated.

  As described above, in the remote control device 1 of the present embodiment, when the one-segment button 161 is operated, the one-segment broadcasting of the channel currently being viewed on the television receiver 2 is received. The program of the same channel can be easily viewed on the remote control device 1. This is effective because it is not necessary for the viewer to receive a one-segment broadcast of the same channel as the channel being viewed on the television receiver 2 by using the remote control device 1, and it is not necessary to perform a new channel selection operation.

  For example, a program linked to a fixed reception broadcast, such as when a video viewed from the batter's point of view in a baseball broadcast is provided by one-segment broadcasting, or when hints and answers are provided only by one-segment broadcasting in a quiz program This is effective when the content is provided by one-segment broadcasting. This is because it is considered that the viewer views the channel viewed on the television receiver 2 on the remote control device 1.

As described above, according to the remote control device 1 according to the present embodiment, when viewing one-segment broadcasting, the channel of the program being viewed on the television receiver 2 is automatically selected, so that one-segment broadcasting is performed. It can be used easily and effectively.
In the future, this is particularly effective when the restriction that the one-segment broadcasting is a simulcast is lifted and a program linked to the fixed reception broadcasting is provided by the one-segment broadcasting.

As mentioned above, although the invention made by this inventor was concretely demonstrated based on embodiment, this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary.
For example, the remote control device 1 may be configured to receive a one-segment broadcast independently of the television receiver 2. Specifically, when the television receiver 2 is turned off, the remote control device 1 receives a one-segment broadcast, or sets a channel other than the channel being viewed on the television receiver 2 to the remote control device. 1 may be received. In this case, the one-segment broadcasting channel selection operation is performed by the operation unit 16 of the remote control device 1.

  In the above embodiment, the case where the present invention is applied to the remote control device 1 attached to the television receiver 2 has been described. However, for example, the present invention can also be applied to a mobile terminal such as a mobile phone capable of receiving one-segment broadcasting. .

  In addition, it should be considered that the embodiment disclosed this time is illustrative and not restrictive in all respects. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1 is an external view showing a remote control device 1 as a mobile receiver according to the present invention and a television receiver as a fixed receiver 2 that can be remotely operated by the remote control device 1. FIG. It is a block diagram which shows schematic structure of the remote control device 1 which concerns on this embodiment. 4 is a flowchart illustrating an example of channel information storage processing for storing channel information in a storage unit 18. 10 is a flowchart illustrating an example of a one-segment broadcast reception process when the remote control device 1 receives a one-segment broadcast.

Explanation of symbols

1 Remote control device (mobile receiver)
11 Antenna 12 One-segment broadcasting tuner unit (receiving unit)
13 TS separation unit 14 Decoding unit (signal processing unit)
15 Output unit 151 Video output unit (LCD)
152 Audio output unit (speaker)
16 Operation part 161 One segment button 17 Control part 171 CPU
172 RAM
173 ROM
18 Storage Unit 19 Transmitter 2 Television Receiver (Fixed Receiver)

Claims (6)

An operation unit for selecting a fixed reception device capable of receiving a fixed reception broadcast included in the terrestrial digital broadcast;
A transmission unit for transmitting a remote control signal based on an operation signal from the operation unit to the fixed reception device;
A receiver for receiving a mobile reception broadcast included in the terrestrial digital broadcast;
A signal processing unit that generates a video signal and an audio signal from the mobile reception broadcast received by the receiving unit;
An output unit that outputs video or audio based on the video signal or audio signal generated by the signal processing unit;
A storage unit for storing information of a channel selected in the fixed reception device;
Based on the channel information stored in the storage unit, a control unit that causes the receiving unit to receive a mobile reception broadcast provided on the channel;
A mobile receiving apparatus comprising:   The mobile reception device according to claim 1, wherein the storage unit stores channel information included in an operation signal from the operation unit. The operation unit has an operation button for viewing a mobile reception broadcast in the mobile reception device,
3. The control unit according to claim 1, wherein when the viewing of the mobile reception broadcast is enabled by the operation of the operation button, the control unit causes the reception unit to receive the mobile reception broadcast. Mobile receiver.   4. The mobile receiver according to claim 1, wherein the program content provided by the mobile reception broadcast is different from the program content provided by the fixed reception broadcast. 5. .   5. The mobile receiver according to claim 1, wherein the mobile receiver is a remote controller attached to the fixed receiver. An operation unit for selecting a fixed reception device capable of receiving a fixed reception broadcast included in the terrestrial digital broadcast;
A transmission unit for transmitting a remote control signal based on an operation signal from the operation unit to the fixed reception device;
A receiver that is included in the digital terrestrial broadcast and receives a mobile reception broadcast having a program content different from that of the fixed reception broadcast;
A signal processing unit that generates a video signal and an audio signal from the mobile reception broadcast received by the receiving unit;
An output unit that outputs video or audio based on the video signal or audio signal generated by the signal processing unit;
A storage unit for storing channel information included in an operation signal from the operation unit;
Based on the channel information stored in the storage unit, a control unit that causes the receiving unit to receive a mobile reception broadcast provided on the channel;
With
The operation unit has an operation button for viewing a mobile reception broadcast in the mobile reception device,
The mobile reception device, wherein the control unit causes the reception unit to receive a mobile reception broadcast when viewing of the mobile reception broadcast is enabled by operating the operation button.

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