JP5726270B2 - Broadcast receiving system, receiver and receiving apparatus - Google Patents

Description

  The present invention relates to a broadcast reception system in which another receiver such as a recording device is connected to a receiver equipped with a tuner. More specifically, the receiver continues to operate even if the receiver stops during operation. The present invention relates to a broadcast receiving system, a receiver and a receiving apparatus.

  Currently, a receiving device that receives a broadcast and outputs a video and audio based on the received broadcast to a receiver, such as a recording device or a set-top box equipped with a tuner, is widespread. These receiving apparatuses are connected to the receiver, and transmit the received video signal and audio signal to the receiver. The receiver can output video and audio based on the broadcast received by the built-in tuner, while receiving the video signal and audio signal from the connected external receiving device by setting to external input. The video and audio based on the received video signal and audio signal can be output.

  If the receiver is turned off while the receiver is outputting video based on the video signal received from the external receiver, the setting is stored from the external input so that the receiver can continue to output. It is necessary to switch to reception using a tuner. Patent Document 1 discloses a receiver that can switch between reception of a signal from an external device and reception of a signal from an antenna. When it is determined that there is no synchronization signal from the external device, reception of the signal from the antenna is performed. A technique for automatically switching is disclosed. Japanese Patent Laid-Open No. 2004-228561 can receive at the frequency originally received by the tuner when the receiver uses the built-in tuner, switches to external input, and returns to reception using the tuner. Such a technique is disclosed.

  A digital interface such as HDMI (High Definition Multimedia Interface: registered trademark) or IEEE 1394 has been developed as an interface for connecting the above receiver and receiving apparatus. The receiving device can transmit data to the receiver through these digital interfaces. Also, HDMI has a device control function called CEC (Consumer Electronics Control), and the receiver can use the CEC function to control the operation of the receiving device such as power on / off. .

Japanese Utility Model Publication No.59-36667 Japanese Utility Model Publication No. 1-135874

  If the receiver is turned off while the receiver is outputting video based on the video signal from the receiver, and the setting is not switched from external input to reception using the built-in tuner, The video output on the machine stops. At this time, a user who has confirmed that the video output has stopped may misunderstand that the power of the receiver has been turned off and forget to turn off the power of the receiver. When the technique disclosed in Patent Document 1 is used, the receiver switches to reception using the built-in tuner when the signal from the receiving device is interrupted, so the user may forget to turn off the receiver. However, it is not possible to select an appropriate channel. Even when the technique disclosed in Patent Document 2 is used, since a broadcast station that has been previously selected by the built-in tuner is selected, the possibility that appropriate channel selection is performed is low.

  Also, contrary to switching from external input to reception using the built-in tuner, the video based on the video signal from the receiving device is output from the state of outputting the video based on the broadcast received by the tuner built in the receiver. May be switched to the state of outputting. When a plurality of receiving devices are connected to the receiver, the video signal input source for video output may be switched from one receiving device to another. For example, if a recording device that is a receiving device is reserved for recording using the recording device or the tuner of the receiver, and recording is started while viewing using this tuner is performed, Since the broadcast received by the tuner is the broadcast designated by the recording reservation, it is necessary to switch the tuner used for viewing in order to continue viewing. Even in such a case, the conventional technique cannot perform appropriate channel selection, and the user cannot continue viewing.

  The present invention has been made in view of such circumstances, and an object of the present invention is to use the same channel when changing a device for receiving a broadcast for viewing in the receiver and the receiving device. It is an object of the present invention to provide a broadcast receiving system, a receiver, and a receiving apparatus that allow a user to continue watching a program by receiving a broadcast.

The broadcast receiving system according to the present invention includes a receiver and a plurality of receivers each capable of receiving a broadcast, and the receiver includes means for transmitting a video signal related to the received broadcast to the receiver. In the broadcast receiving system, the receiver includes means for outputting a video based on the video signal received from the receiving device and a video based on the received broadcast, and the receiver outputs a video based on the received broadcast. In this state, the plurality of receiving devices include means for transmitting an instruction asking whether or not it is possible to receive a broadcast of the same channel as the received channel. In response to the command, the receiver comprises means for transmitting to the receiver information indicating whether or not it is possible to receive a broadcast of the same channel as the channel, , Based on information received from said plurality of receiving devices, from among the plurality of receiving devices, means for selecting a receiving apparatus capable of receiving a broadcast of the channel in the same channel, said means selected Means for transmitting channel information indicating the channel of the received broadcast to the receiving device, and outputting the video based on the video signal received from the receiving device, and outputting the video based on the received broadcast. Means for changing to a state, wherein the receiving device comprises means for starting reception of a broadcast on a channel indicated by channel information received from the receiver.

  The broadcast receiving system according to the present invention includes a receiver and a plurality of receivers each capable of receiving a broadcast, and the receiver includes means for transmitting a video signal related to the received broadcast to the receiver. In the broadcast receiving system, the receiver includes means for outputting a video based on the video signal received from the receiving device and a video based on the received broadcast, and the receiving device is based on the broadcast received by the receiving device. Selecting means for selecting a device capable of receiving a broadcast of the same channel as the received channel from the receiver and other receiving devices in a state in which the received video is output by the receiver; When the apparatus selected by the selecting means is the receiver, means for transmitting channel information indicating the channel of the received broadcast to the receiver, and the apparatus selected by the selecting means. Means for transmitting to the receiver a change instruction instructing to change the video signal receiving source to the other receiving device, and the channel information to the other receiving device. Means for transmitting, and when the receiver receives the channel information, the receiver starts broadcasting reception on a channel indicated by the channel information, and a video based on the video signal received from the receiving device. A state of outputting the video based on the received broadcast, and a state of outputting the video based on the video signal received from the receiving device when the change instruction is received, Means for changing to a state of outputting video based on the video signal received from the other receiving device, and the other receiving device receives the channel information, The channel indicated by the Yan'neru information, characterized in that it comprises means for initiating the reception of the broadcast.

The receiver according to the present invention includes means for receiving a broadcast, means for receiving a video signal relating to the broadcast received by the external apparatus from the external apparatus, and a video based on the video signal received from the external apparatus and received. Receiving a video signal from a plurality of external devices, and outputting the video based on the received broadcast in a state of outputting the video based on the received broadcast. Means for transmitting a command for inquiring whether or not a broadcast of the same channel as the received channel can be received to an external device ; and receiving a broadcast of the same channel as the channel in response to the command Means for receiving information indicating whether or not it is possible from the plurality of external devices, and based on the information received by the means, from among the plurality of external devices, Means for selecting an external device capable of receiving broadcast of the serial channel and the same channel, to the external device the unit is selected, and means for transmitting the channel information indicating a channel of a broadcast that has been received, the received And a means for changing a state of outputting a video based on broadcast to a state of outputting a video based on a video signal received from the external device.

  The receiver according to the present invention includes means for receiving a broadcast, means for receiving a video signal relating to the broadcast received by the external apparatus from the external apparatus, and a video based on the video signal received from the external apparatus and received. In a receiver comprising a means for outputting video based on broadcasting, it is possible to receive video signals from a plurality of external devices, and output video based on video signals received from one external device Means for receiving channel information indicating a broadcast channel received by the one external device, and a channel indicated by the channel information when the means receives the channel information from the one external device. Then, the means for starting the reception of the broadcast and the state of outputting the video based on the video signal received from the one external device are output as the video based on the received broadcast. The video signal can be received from a plurality of external devices and the video signal receiving source in a state of outputting video based on the video signal received from one external device. Means for receiving a change instruction instructing to change to another external device, and a state of outputting a video based on a video signal received from the one external device when the means receives the change instruction And a means for changing to a state of outputting a video based on a video signal received from the other external device.

A receiving apparatus according to the present invention includes a receiving apparatus including means for receiving a broadcast, a means for transmitting a video signal related to the received broadcast to the outside, and a means for communicating with a plurality of external apparatuses. A command for inquiring whether or not it is possible to receive a broadcast of the same channel as the received channel to a plurality of external devices capable of communication in a state in which the video signal is being transmitted to the outside. And means for receiving from the plurality of external devices information indicating whether or not a broadcast of the same channel as the channel can be received in response to the command; and based on the information, from the plurality of external devices, means for selecting an external device capable of receiving broadcast of the channel in the same channel, the external device to which the unit has been selected , Characterized in that it comprises a means for transmitting channel information indicating a channel of a broadcast that has been received.

  In the present invention, a device for receiving a broadcast for displaying a video is changed in a state in which the receiver outputs a video based on a broadcast received by either the receiver or one or a plurality of receiving devices. In this case, the broadcast is received on the same channel as before the change, and the video output is continued.

  In the present invention, the receiving device transmits a video signal related to broadcasting to the receiver, and the receiving device receives the video signal when stopping the transmission of the video signal while the receiver is outputting the video. The channel information indicating the broadcast channel is transmitted to the receiver. The receiver starts receiving the broadcast on the channel indicated by the channel information received from the receiving device. Through these processes, when the receiver stops transmitting the video signal while the receiver is outputting video based on the broadcast received by the receiver, the receiver receives the broadcast received by the receiver. A broadcast is received on the same channel as the channel, and an image based on the received broadcast is output.

  In the present invention, when the receiver detects that the reception of the video signal from the receiving device is stopped, the receiver requests channel information from the receiving device, and broadcasts on the channel indicated by the channel information received from the receiving device. Start receiving. The receiver receives a broadcast on the same channel as the broadcast channel received by the receiving device, and outputs an image based on the received broadcast.

  Further, in the present invention, when the receiver receives a stop instruction that instructs to stop the receiving device, the receiver transmits a stop command to the receiving device, and when the receiving device stops transmitting the video signal, Send channel information to the receiver. The receiver starts receiving the broadcast on the channel indicated by the channel information received from the receiving device, thereby receiving the broadcast on the same channel as the broadcast channel received by the receiving device, and based on the received broadcast Output video.

  Further, in the present invention, when the receiver receives a stop instruction, the receiver transmits a request for channel information to the receiving device, starts receiving the broadcast on the channel indicated by the channel information received from the receiving device, and issues a stop command. The data is transmitted to the receiving device, and the receiving device stops according to the stop command. The receiver receives a broadcast on the same channel as the broadcast channel received by the receiving device, and outputs an image based on the received broadcast.

  In the present invention, if a predetermined time has elapsed without receiving any instruction from the user after starting the reception of the broadcast, the receiver stops the output of the video by turning off the power.

  Further, in the present invention, when changing the apparatus for receiving a broadcast from the receiver to the receiver, the receiver transmits channel information indicating the channel of the broadcast that has been received to the receiver, and the receiver receives the channel. Broadcast reception starts on the channel indicated by the information. The receiving device receives the broadcast on the same channel as the broadcast channel received by the receiver, and the receiver outputs the video based on the broadcast received by the receiving device, so that the broadcast video of the same channel is output. Is output continuously.

  In the present invention, the receiver can receive video signals from a plurality of receiving devices, and when the broadcast receiving device is changed from the receiving device to the receiving device, the receiving device is the same as the received channel. A receiving device capable of receiving the broadcast of the channel is selected, and the channel information is transmitted to the selected receiving device, and the selected receiving device starts receiving the broadcast on the channel indicated by the channel information. The receiving device receives the broadcast on the same channel as the broadcast channel received by the receiver, and the receiver outputs the video based on the broadcast received by the receiving device, so that the broadcast video on the same channel is output. Is output continuously.

  In the present invention, when the receiver is capable of receiving video signals from a plurality of receiving devices and the device that receives the broadcast is changed from one receiving device to another receiving device, the one receiving device receives channel information. To other receiving apparatuses, and the other receiving apparatuses start receiving broadcasts on the channel indicated by the channel information. The receiver outputs a video based on a broadcast received by another receiving device, whereby a broadcast video is continuously output on the same channel.

  Further, in the present invention, when the receiver is capable of receiving video signals from a plurality of receiving apparatuses and the apparatus for receiving broadcasts is changed from one receiving apparatus to the receiver or another receiving apparatus, one receiving apparatus Selects a device capable of receiving a broadcast of the same channel as the channel received in the receiver and other receiving devices, and transmits channel information to the selected device. The receiver or other receiving device that has received the channel information starts receiving the broadcast on the channel indicated by the channel information. As a result, the receiver continuously outputs the broadcast video on the same channel.

  In the present invention, even when the broadcast receiving system including the receiver and one or a plurality of receiving apparatuses is changed, the broadcast receiving system receives the broadcast on the same channel as before the change. Since the video output is continued, the user can continuously view the same broadcast program. In the present invention, even when the receiving device is stopped while viewing using the receiving device, the receiver starts receiving broadcasts on the same channel. The present invention has an excellent effect that the same broadcast program can be continuously viewed without performing an operation such as switching or channel designation.

It is a conceptual diagram which shows the external appearance of the broadcast receiving system of this invention which concerns on Embodiment 1. FIG. It is a block diagram which shows the internal structure of a receiver and a receiver. 7 is a flowchart illustrating a procedure of processing performed by the broadcast reception system according to Embodiment 1 when the reception device stops. It is a flowchart which shows the procedure of the process which the broadcast receiving system which concerns on Embodiment 2 performs when a receiving apparatus stops. 10 is a flowchart showing a procedure of processing performed by the broadcast receiving system according to Embodiment 3 when the receiving device stops. 10 is a flowchart showing a procedure of processing performed by the broadcast receiving system according to Embodiment 4 when the receiving device stops. 10 is a flowchart showing a procedure of processing performed by a broadcast receiving system according to Embodiment 5. 14 is a flowchart showing a procedure of processing performed by a broadcast receiving system according to Embodiment 6. FIG. 17 is a conceptual diagram showing an external appearance of a broadcast receiving system according to a seventh embodiment. It is a block diagram which shows the internal structure of a receiver. 20 is a flowchart showing a procedure of processing performed by a broadcast receiving system according to Embodiment 7. 20 is a flowchart showing a procedure of processing performed by a broadcast receiving system according to Embodiment 8. 20 is a flowchart showing a procedure of processing performed by a broadcast receiving system according to Embodiment 8.

Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof.
(Embodiment 1)
FIG. 1 is a conceptual diagram showing the appearance of the broadcast receiving system of the present invention according to Embodiment 1. The broadcast receiving system of the present invention includes a receiver 1 capable of receiving a broadcast and a receiving device 2 connected to the receiver 1. The receiving device 2 is a recording device that can receive and record broadcasts independently of the receiver 1. The receiver 1 is configured to receive an instruction from the viewer using a remote controller (remote controller) 3 operated by the viewer.

  FIG. 2 is a block diagram showing an internal configuration of the receiver 1 and the receiving device 2. The reception device 2 includes a calculation unit that performs a calculation, a RAM that stores information associated with the calculation, a ROM that stores a program necessary for the calculation, and the like, and includes a control unit 21 that controls the operation of each unit of the reception device 2. The receiving device 2 includes a processing unit 26 that performs video processing and audio processing necessary for the receiving device 2. Connected to the processing unit 26 is an optical disk drive 28 that accepts an optical disk such as a CD or DVD and reads data recorded on the optical disk, and a hard disk drive (HDD) 27 that contains a hard disk and reads / writes data from / to the hard disk. Has been. The processing unit 26 performs a process of decoding the data read by the optical disk drive 28 and the HDD 27 to generate a video signal and an audio signal, and also outputs the video signal and the audio signal in order to record the data on the optical disk drive 28 and the HDD 27. Perform the encoding process.

  The processing unit 26 is connected to a tuner 22 that receives various broadcasts such as terrestrial broadcasts, satellite broadcasts, and cable broadcasts, demodulates and decodes the signals, and generates video signals and audio signals. The processing unit 26 encodes the video signal and the audio signal generated by the tuner 22, and the optical disk drive 28 and the HDD 27 record the data encoded by the processing unit 26. In addition, the receiving device 2 includes an HDMI transmission unit 23 that transmits data according to the HDMI standard, and a tuner 22 and a processing unit 26 are connected to the HDMI transmission unit 23. The HDMI transmission unit 23 performs a process of encoding the video signal and the audio signal generated by the tuner 22 and the processing unit 26 into data according to the HDMI standard, and transmitting the HDMI data generated by the encoding. An HDMI terminal 24 to which an HDMI cable, which is a communication cable configured according to the HDMI standard, is further connected to the HDMI transmission unit 23, and the HDMI terminal 24 is further connected to the control unit 21. The HDMI transmission unit 23 transmits HDMI data via the HDMI terminal 24, and the control unit 21 transmits and receives control data in accordance with the CEC (Consumer Electronics Control) standard. The HDMI terminal 24 and the HDMI cable are configured to transmit HDMI data and CEC data separately from each other.

  In the receiver 2, at the time of recording, the processing unit 26 encodes the video signal and the audio signal generated by the tuner 22, and the encoded data is recorded on the hard disk by the HDD 27 or the optical disk drive 28 records on the optical disk. At the time of dubbing, the optical disk drive 28 records data read from the hard disk by the HDD 27 on the optical disk. When the user views the recorded program, the processing unit 26 decodes the data read by the HDD 27 or the optical disk drive 28, and the HDMI transmission unit 23 converts the video signal and audio signal decoded by the processing unit 26 into HDMI. The data is encoded, and the HDMI data is transmitted to the receiver 1 via the HDMI terminal 24. When a user views a broadcast program, the HDMI transmission unit 23 encodes the video signal and the audio signal generated by the tuner 22 into HDMI data, and receives the HDMI data via the HDMI terminal 24. Send to 1. In this way, the receiving device 2 transmits the video signal and audio signal related to the received broadcast to the receiver 1 in the HDMI data format.

  Further, the control unit 21 is connected to a remote control receiving unit 25 that receives a signal from the remote control 3 operated by the user. The remote controller 3 transmits a stop instruction to stop the receiving apparatus 2 to the receiving apparatus 2 by transmitting a predetermined signal when the user presses a predetermined button with the remote controller 3 directed to the receiving apparatus 2. be able to. The remote control receiving unit 25 can accept a stop instruction by receiving a signal transmitted from the remote control 3. When the remote control receiving unit 25 receives a stop instruction, the control unit 21 stops the operation of each unit of the receiving device 2 by a method such as cutting off the supply of power from the power source to each unit, and the receiving device 2 is stopped. To. In the stopped state, the transmission of data by the HDMI transmission unit 23 is stopped. However, even in the stopped state, transmission / reception of CEC data performed by the control unit 21 is continued. When the control unit 21 receives control data according to the CEC standard, the control unit 21 controls the operation of each unit of the receiving device 2 according to the received control data. For example, when the control unit 21 receives control data for instructing the start of operation in the stopped state, the control unit 21 executes a process for starting the operation of each unit of the receiving device 2. The control unit 21 is connected to an operation unit 29 including a push button that directly receives a user operation. The operation unit 29 accepts various instructions such as a recording start instruction or a reproduction start instruction by accepting a user operation.

  The receiver 1 includes a calculation unit that performs a calculation, a RAM that stores information associated with the calculation, a ROM that stores a program necessary for the calculation, and the like, and includes a control unit 11 that controls the operation of each unit of the receiver 1. The receiver 1 includes an HDMI receiving unit 13 that receives data in accordance with the HDMI standard, and an HDMI terminal 14 is connected to the HDMI receiving unit 13 and the control unit 11. The HDMI terminal 14 is connected to the HDMI terminal 24 of the receiving device 2 through an HDMI cable. The HDMI terminal 14 inputs CEC data among the data transmitted from the receiving device 2 to the control unit 11 and inputs HDMI data to the HDMI receiving unit 13. The HDMI receiving unit 13 receives data in accordance with HDMI and decodes the received data into a video signal and an audio signal.

  The receiver 1 includes an AV switch 16 that separates a video signal and an audio signal, and the AV switch 16 is connected to the HDMI receiving unit 13. The AV switch 16 includes a display unit such as a liquid crystal display panel or a plasma display panel, and includes a video output unit 17 that outputs video based on the video signal, a speaker or an audio output terminal, and the like, based on the audio signal. An audio output unit 18 that outputs audio is connected. The HDMI receiving unit 13 inputs a video signal and an audio signal obtained by decoding the received data to the AV switch 16, and the AV switch 16 inputs the video signal input from the HDMI receiving unit 13 to the video output unit 17, The signal is input to the audio output unit 18. Further, the tuner 12 is connected to the AV switch 16. The tuner 12 inputs the video signal and the audio signal generated by receiving the broadcast to the AV switch 16, and the AV switch 16 inputs the video signal input from the tuner 12 to the video output unit 17 and converts the audio signal into the audio signal. Input to the output unit 18. The video output unit 17 outputs video based on the video signal input from the AV switch 16, and the audio output unit 18 outputs audio based on the audio signal input from the AV switch 16. In this way, the receiver 1 receives the video signal and the audio signal transmitted from the receiving device 2 in the HDMI data format, and outputs the video and the audio based on the received video signal and the audio signal.

  Further, the control unit 11 is connected to a remote control receiving unit 15 that receives a signal from the remote control 3 operated by the user. The remote controller receiving unit 15 receives various instructions such as a channel change instruction by receiving a signal from the remote controller 3 operated by the user, and functions as an accepting unit in the present invention. The control unit 11 executes processing for controlling the operation of each unit of the receiver 1 in accordance with the instruction received by the remote control receiving unit 15. The control unit 11 is connected to an operation unit 19 including a push button or the like that directly receives a user operation. The operation unit 19 receives various instructions such as a channel change instruction by receiving a user operation, and the control unit 11 controls the operation of each unit of the receiver 1 according to the instruction received by the operation unit 19. Execute the process.

  The broadcast receiving system of the present invention having the above configuration is configured to broadcast on the receiver 1 when the receiver 2 stops while the receiver 1 is outputting video based on the data received from the receiver 2. Performs processing to start reception. FIG. 3 is a flowchart showing a procedure of processing performed by the broadcast receiving system according to Embodiment 1 when receiving device 2 is stopped.

  The control unit 21 of the receiving device 2 puts the receiving device 2 into a stopped state when the remote control receiving unit 25 receives a stop instruction by the user operating the remote control 3. At this time, in order to transmit the video signal and the audio signal related to the broadcast received by the tuner 22 to the receiver 1, such as the process of receiving the broadcast by the tuner 22 and the process of transmitting the data to the receiver 1 by the HDMI transmitting unit 23. Processing is stopped. As a result, transmission of video signals and audio signals from the receiving device 2 to the receiver 1 is stopped. While the receiver 1 outputs video and audio based on the video signal and audio signal received from the receiving device 2, the control unit 11 stops receiving the video signal and audio signal transmitted from the receiving device 2. The process which detects this is performed (S101). Specifically, when the data received by the HDMI receiving unit 13 is decoded and the clock signal cannot be obtained from the decoded data, the HDMI receiving unit 13 cannot receive the HDMI data. In addition, the control unit 11 determines that the reception of the video signal and the audio signal is stopped. Note that the reception of the HDMI data may be interrupted for reasons other than the reception device 2 being stopped, so that the control unit 11 displays the video when the state in which the HDMI data cannot be received continues for a predetermined time. What is necessary is just to determine with the reception of a signal and an audio | voice signal having stopped.

  When the reception of the video signal and the audio signal is not stopped in step S101 (S101: NO), the control unit 11 continues the detection process. When the reception of the video signal and the audio signal is stopped in step S101 (S101: YES), the control unit 11 is the receiving device 2 in which the transmission source of the video signal and the audio signal is provided with the tuner 22, and the image is received. It is determined whether or not the receiving apparatus 2 is capable of receiving control data according to the CEC standard transmitted from the device 1 (S102). For example, when the transmission source of the video signal and the audio signal is an optical disc reproduction-only device, the transmission source is not the receiving device 2. Even if the transmission source includes a tuner, if the transmission source does not support control data according to the CEC standard, the transmission source is not the receiving device 2 that can receive the control data. When an external device is connected to the receiver 1 and performs processing for recognizing the external device, the control unit 11 stores information indicating what device the external device is. In step S102, the control unit 11 determines whether the transmission source of the video signal and the audio signal is the receiving device 2 that can receive the control data, based on the stored information. Note that the control unit 11 may determine using other methods, such as determining that the transmission source is not the receiving device 2 capable of receiving control data when there is no response to CEC communication.

  When the transmission source of the video signal and the audio signal is not the receiving device 2 that can receive the control data (S102: NO), the control unit 11 causes the tuner 12 to start receiving the broadcast (S103). At this time, the tuner 12 starts receiving broadcasts on a preset channel or a randomly determined channel. The tuner 12 receives the broadcast and generates a video signal and an audio signal, the video output unit 17 outputs the video, and the audio output unit 18 outputs the audio.

  When the transmission source of the video signal and the audio signal is the receiving device 2 capable of receiving the control data in step S102 (S102: YES), the control unit 11 receives the broadcast channel received until the receiving device 2 stops. Is transmitted to the receiving apparatus 2 via the HDMI terminal 14 as CEC data (S104). The receiving device 2 receives a request for channel information at the HDMI terminal 24 (S105), and the control unit 21 uses the channel information indicating the broadcast channel received by the tuner 22 until the channel is stopped as CEC data as HDMI data. The data is transmitted to the receiver 1 via the terminal 24 (S106). The channel information includes information indicating the type of broadcasting such as terrestrial broadcasting, satellite broadcasting, or cable broadcasting, and information indicating a specific channel in terms of channel number, frequency band, broadcasting station name, or the like. The processing of step S105 and step S106 executed by the control unit 21 and the HDMI terminal 24 corresponds to the channel information transmission means in the present invention. Note that even if the receiving device 2 receives a request for channel information that is CEC data in step S105, if the receiving device 2 does not correspond to the CEC command representing the request for channel information, the receiving device 2 Information cannot be sent. In this case, the receiving device 2 may transmit information indicating that it does not correspond to the CEC command indicating the request for channel information to the receiver 1. In addition, the video signal and the audio signal transmitted to the receiver 1 when the receiving device 2 is stopped are not signals relating to the broadcast received by the tuner 22 but signals obtained by decoding the data recorded on the hard disk or the optical disk. In some cases, since the broadcast channel that has been received does not exist, the receiving apparatus 2 cannot transmit the channel information. In this case, the receiving device 2 may transmit information indicating that the broadcast has not been received to the receiver 1.

  After step S104 is completed, the control unit 11 of the receiver 1 waits for the channel information transmitted from the receiving device 2 to be received at the HDMI terminal 14 (S107). If no channel information is received even after a predetermined time has elapsed from the end of step S104 (S107: NO), the control unit 11 advances the process to step S103. Even when information indicating that the CEC command indicating the request for channel information is not supported or information indicating that the broadcast has not been received is received from the receiving device 2, the control unit 11 may It is determined that there is no reception, and the process proceeds to step S103.

  When the channel information is received at the HDMI terminal 14 in step S107 (S107: YES), the control unit 11 determines whether or not the channel indicated by the received channel information is a channel that can be received by the tuner 12. (S108). For example, when the tuner 12 supports only terrestrial broadcasting, the tuner 22 also supports satellite broadcasting, and the receiver 1 receives channel information indicating a satellite broadcasting channel in step S107, the channel information indicates. The tuner 12 cannot receive the channel broadcast. If the channel is not a channel in which the tuner 12 can receive the broadcast (S108: NO), the control unit 11 advances the process to step S103. If the channel is a channel that can be received by the tuner 12 (S108: YES), the control unit 11 causes the tuner 12 to start receiving the broadcast on the channel indicated by the received channel information (S109). The tuner 12 receives the broadcast and generates a video signal and an audio signal, the video output unit 17 outputs video based on the video signal, and the audio output unit 18 outputs audio based on the audio signal.

  After step S103 or step S109 is completed, the control unit 11 sets a timer for stopping the receiver 1 when the instruction from the user is not received for a certain period of time, and starts measuring time (S110). The processing when the receiving device 2 stops is terminated. The control unit 11 continues the time measurement, and ends the time measurement when the remote control receiving unit 15 receives any instruction by the user operating the remote control 3. When a predetermined time has passed without accepting any instruction, the control unit 11 stops the operation of each unit of the receiver 1 by a method such as cutting off the supply of power from the power source to each unit. The receiver 1 is brought into a stopped state. In the stop state, the video output by the video output unit 17 is stopped, and the audio output by the audio output unit 18 is also stopped.

  As described above in detail, in the broadcast receiving system according to the present embodiment, when the receiver 1 detects that the reception of the video signal from the receiving device 2 is stopped, the broadcast received by the receiving device 2 is received. The receiving apparatus 2 is requested to receive channel information indicating the channel number. The receiver 1 starts receiving broadcasts on the channel indicated by the channel information received from the receiving device 2. With these processes, when the receiver 2 stops while the receiver 1 is outputting video based on the broadcast received by the receiver 2, the receiver 1 receives the broadcast received by the receiver 2. A broadcast is received on the same channel as the channel, and an image based on the received broadcast is output. When the user stops the receiving apparatus 2 while viewing the broadcast program using the receiving apparatus 2, the user continues the same broadcast program without performing an operation such as setting switching or channel designation. Can watch. The broadcast program that the user was watching until just before is likely to be watched by the user, so the present invention performs more appropriate channel selection than the prior art and improves the convenience of the broadcast receiving system. To do. In the present invention, since the receiver 1 continues to output video even if the receiver 2 is stopped, there is a possibility that the user misunderstands that the power of the receiver is also turned off and forgets to turn off the receiver. Decreases.

  Further, in the broadcast receiving system according to the present embodiment, the receiver 1 receives a video signal after turning off the power or the like when a predetermined time has passed without receiving any instruction from the user after starting the broadcast reception. Stop the output of. When the user stops the receiving apparatus 2 by pressing the stop button on the remote controller 3 or the like, the user may intend to stop viewing the broadcast program. At this time, the user may leave without confirming that the receiver 1 is operating, and may be left in a state where the receiver 1 is operating. In the present invention, the receiver 1 stops the output of the video when the predetermined time has passed without receiving an instruction to change the channel or the volume after starting the reception. Even if left unattended, the receiver 1 can be surely stopped.

(Embodiment 2)
In Embodiment 2, a mode in which channel information is transmitted from receiving apparatus 2 when receiving apparatus 2 is stopped will be described. The configuration of the broadcast receiving system according to the second embodiment is the same as that of the first embodiment, and the description thereof is omitted. FIG. 4 is a flowchart showing a procedure of processing performed by the broadcast receiving system according to Embodiment 2 when receiving device 2 is stopped.

  While the receiving device 2 is transmitting video signals and audio signals related to broadcasting to the receiver 1, the control unit 21 waits for the remote control receiving unit 25 to accept a stop instruction when the user operates the remote control 3. (S21). When the stop instruction is not received (S21: NO), the control unit 21 continues to wait for the stop instruction. When the stop instruction is received (S21: YES), the control unit 21 puts the receiving device 2 into a stop state (S22). Next, the control unit 21 transmits channel information indicating the broadcast channel received until the receiving device 2 stops to the receiver 1 via the HDMI terminal 24 as CEC data (S23). The process of step S23 executed by the control unit 21 and the HDMI terminal 24 corresponds to the channel information transmission unit in the present invention. Note that the control unit 21 may perform a process of transmitting the channel information first and then setting the receiving device 2 in a stopped state.

  The receiver 1 receives the channel information at the HDMI terminal 14 (S24), and the control unit 11 determines whether or not the channel indicated by the received channel information is a channel capable of receiving the broadcast by the tuner 12 ( S25). When the channel is not a channel in which the tuner 12 can receive the broadcast (S25: NO), the control unit 11 causes the tuner 12 to start receiving the broadcast on a preset channel or a randomly determined channel ( S26). If the channel is a channel that can be received by the tuner 12 (S25: YES), the control unit 11 causes the tuner 12 to start receiving the broadcast on the channel indicated by the received channel information (S27). After step S26 or step S27 is completed, the control unit 11 sets a timer for stopping the receiver 1 when the instruction from the user is not received for a certain period of time, and starts measuring time (S28). The processing when the receiving device 2 stops is terminated. The control unit 11 continues timing and ends timing when the remote control receiving unit 15 receives any instruction. When a predetermined time has elapsed without accepting any instruction, the control unit 11 puts the receiver 1 into a stopped state.

  As described above in detail, in the broadcast receiving system according to the present embodiment, the receiving device 2 indicates a channel of the received broadcast when stopping the transmission of the video signal and audio signal related to the received broadcast. The information is transmitted to the receiver 1, and the receiver 1 starts receiving the broadcast on the channel indicated by the channel information received from the receiving device 2. Accordingly, also in the present embodiment, when the receiving device 2 is stopped, the receiver 1 receives a broadcast on the same channel as the broadcast channel received by the receiving device 2, and the user receives the same broadcast. You can continue to watch the program.

(Embodiment 3)
In the third embodiment, the broadcast receiving system can stop the receiving apparatus 2 by receiving a stop instruction that instructs the receiving apparatus 2 to stop. The configuration of the broadcast receiving system according to Embodiment 3 is the same as that of Embodiment 1, and the description thereof is omitted. FIG. 5 is a flowchart showing a procedure of processing performed by the broadcast receiving system according to Embodiment 3 when receiving device 2 is stopped.

  While the receiver 1 receives the video signal and the audio signal from the receiving device 2 and outputs the video and the audio, the control unit 11 instructs the stop of the receiving device 2 by operating the remote controller 3 by the user. The remote control receiving unit 15 waits for a stop instruction to be received (S301). When the stop instruction is not received (S301: NO), the control unit 11 continues to wait for the stop instruction. When the stop instruction is received (S301: YES), the control unit 11 transmits a stop command for stopping the receiving device 2 to the receiving device 2 via the HDMI terminal 14 as CEC data (S302). .

  The receiving device 2 receives the stop command at the HDMI terminal 24 (S311), and the control unit 21 puts the receiving device 2 into a stopped state (S312). Next, the control unit 21 transmits channel information indicating the broadcast channel received until the reception device 2 is stopped to the receiver 1 via the HDMI terminal 24 as CEC data (S313). Note that the control unit 21 may perform a process of transmitting the channel information first and then setting the receiving device 2 in a stopped state. The processing of step S311 and step S313 executed by the control unit 21 and the HDMI terminal 24 corresponds to the channel information transmission unit in the present invention. As in the first embodiment, the receiving device 2 may not be able to transmit channel information.

  After step S302 ends, the control unit 11 determines whether or not the transmission destination of the stop command is the receiving device 2 including the tuner 22 (S303). If the transmission destination of the stop command is not the reception device 2 including the tuner 22 (S303: NO), the channel information cannot be received, and the control unit 11 causes the tuner 12 to start receiving the broadcast (S304). ). At this time, the tuner 12 starts receiving broadcasts on a preset channel or a randomly determined channel. When the transmission destination of the stop command is the receiving device 2 including the tuner 22 in step S303 (S303: YES), the control unit 11 of the receiver 1 receives the channel information transmitted from the receiving device 2 through the HDMI terminal 14. Waiting for reception (S305). When channel information is not received, such as receiving information indicating that the broadcast has not been received from the receiving device 2 (S305: NO), the control unit 11 advances the process to step S304. When the channel information is received at the HDMI terminal 14 (S305: YES), the control unit 11 determines whether or not the channel indicated by the received channel information is a channel capable of receiving broadcasts by the tuner 12 (S306). ). If the channel is not a channel in which the tuner 12 can receive the broadcast (S306: NO), the control unit 11 advances the process to step S304. If the channel is a channel that can be received by the tuner 12 (S306: YES), the control unit 11 causes the tuner 12 to start receiving the broadcast on the channel indicated by the received channel information (S307).

  After step S304 or step S307 is completed, the control unit 11 sets a timer for stopping the receiver 1 when it does not receive an instruction from the user for a certain period of time, and starts measuring time (S308), The processing when the receiving device 2 stops is terminated. The control unit 11 continues timing and ends timing when the remote control receiving unit 15 receives any instruction. When a predetermined time has elapsed without accepting any instruction, the control unit 11 puts the receiver 1 into a stopped state.

  As described in detail above, in the broadcast receiving system according to the present embodiment, when the receiver 1 receives a stop instruction that instructs the receiver 2 to stop, the receiver 1 transmits a stop command to the receiver 2, The receiving device 2 transmits channel information to the receiver 1 when stopping the transmission of the video signal and the audio signal. The receiver 1 starts receiving broadcasts on the channel indicated by the channel information received from the receiving device 2. Therefore, also in the present embodiment, when the receiving device 2 stops, the receiver 1 receives a broadcast on the same channel as the broadcast channel that the receiving device 2 was receiving, and the user receives the same broadcast. You can continue to watch the program.

(Embodiment 4)
In the fourth embodiment, a description will be given of a mode in which, when the receiver 1 receives a stop instruction that instructs the receiver 2 to stop, the receiver 1 is stopped after the receiver 1 starts receiving the broadcast. The configuration of the broadcast receiving system according to the fourth embodiment is the same as that of the first embodiment, and the description thereof is omitted. FIG. 6 is a flowchart illustrating a procedure of processing performed by the broadcast receiving system according to Embodiment 4 when receiving device 2 is stopped.

  While the receiver 1 receives the video signal and the audio signal from the receiving device 2 and outputs the video and the audio, the control unit 11 instructs the stop of the receiving device 2 by operating the remote controller 3 by the user. The remote control receiving unit 15 waits for a stop instruction to be received (S401). When the stop instruction is not received (S401: NO), the control unit 11 continues to wait for the stop instruction. When the stop instruction is received (S401: YES), the control unit 11 is the receiving device 2 having the tuner 22 as the transmission source of the video signal and the audio signal, and complies with the CEC standard transmitted from the receiver 1. It is determined whether or not the receiving apparatus 2 can receive the control data (S402). When the transmission source of the video signal and the audio signal is not the receiving device 2 that can receive the control data (S402: NO), the control unit 11 causes the tuner 12 to start receiving the broadcast (S403). At this time, the tuner 12 starts receiving broadcasts on a preset channel or a randomly determined channel.

  When the transmission source of the video signal and the audio signal is the receiving device 2 capable of receiving the control data in step S402 (S402: YES), the control unit 11 selects the broadcast channel that the receiving device 2 has received so far. The requested channel information request is transmitted as CEC data to the receiving device 2 via the HDMI terminal 14 (S404). The receiving device 2 receives a request for channel information at the HDMI terminal 24 (S405), and the control unit 21 uses the channel information indicating the broadcast channel that has been received by the tuner 22 as CEC data as HDMI terminal. 24 to the receiver 1 (S406). The processing of step S405 and step S406 executed by the control unit 21 and the HDMI terminal 24 corresponds to the channel information transmission unit in the present invention. As in the first embodiment, the receiving device 2 may not be able to transmit channel information.

  After step S404 is completed, the control unit 11 of the receiver 1 waits for the channel information transmitted from the receiving device 2 to be received at the HDMI terminal 14 (S407). When channel information is not received, such as receiving information indicating that the broadcast has not been received from the receiving device 2 (S407: NO), the control unit 11 advances the process to step S403. When the channel information is received at the HDMI terminal 14 (S407: YES), the control unit 11 determines whether or not the channel indicated by the received channel information is a channel capable of receiving broadcasts by the tuner 12 (S408). ). If the channel is not a channel in which the tuner 12 can receive the broadcast (S408: NO), the control unit 11 advances the process to step S403. If the channel is a channel that can be received by the tuner 12 (S408: YES), the control unit 11 causes the tuner 12 to start receiving the broadcast on the channel indicated by the received channel information (S409). The tuner 12 receives the broadcast and generates a video signal and an audio signal, the video output unit 17 outputs video based on the video signal, and the audio output unit 18 outputs audio based on the audio signal. After step S403 or step S409 is completed, the control unit 11 transmits a stop command for stopping the receiving apparatus 2 to the receiving apparatus 2 via the HDMI terminal 14 as CEC data (S410). The receiving device 2 receives the stop command at the HDMI terminal 24 (S411), and the control unit 21 stops the receiving device 2 (S412) and ends the process.

  After step S410 is completed, the control unit 11 sets a timer for stopping the receiver 1 when it does not receive an instruction from the user for a certain period of time, starts time measurement (S413), and receives the receiver 2. Terminates the process when it stops. The control unit 11 continues timing and ends timing when the remote control receiving unit 15 receives any instruction. When a predetermined time has elapsed without accepting any instruction, the control unit 11 puts the receiver 1 into a stopped state.

  As described above in detail, in the broadcast receiving system according to the present embodiment, the receiver 1 transmits a request for channel information to the receiving device 2 when receiving a stop instruction that instructs the receiving device 2 to stop. Then, broadcast reception is started on the channel indicated by the channel information received from the receiving device 2. Further, the receiver 1 transmits a stop command to the receiving device 2, and the receiving device 2 stops according to the stop command. Therefore, also in the present embodiment, when the receiving device 2 stops, the receiver 1 receives a broadcast on the same channel as the broadcast channel that the receiving device 2 was receiving, and the user receives the same broadcast. You can continue to watch the program.

  Note that the broadcast receiving system according to the first embodiment may be provided with the functions described in the third or fourth embodiment, and the broadcast receiving system according to the second embodiment is also the same as that in the third or fourth embodiment. The form provided also with the function demonstrated in 4 may be sufficient.

(Embodiment 5)
In the first to fourth embodiments, a mode in which a device that receives a broadcast is switched from the receiving device 2 to the receiver 1 is shown. In the fifth embodiment, a device that receives a broadcast is changed from the receiver 1 to the receiving device 2. A mode of switching to will be described. The configuration of the broadcast receiving system according to the fifth embodiment is the same as that of the first embodiment, and the description thereof is omitted. FIG. 7 is a flowchart showing a procedure of processing performed by the broadcast receiving system according to the fifth embodiment.

  While the receiver 1 is outputting video and audio based on the broadcast received by the tuner 12, the control unit 11 switches the receiver that receives the broadcast from the receiver 1 to the receiver 2 in order to output the video. A process of waiting for reception of the instruction is performed (S501). For example, in the receiver 1, the remote controller receiving unit 15 receives an instruction to switch the apparatus that receives the broadcast from the receiver 1 to the receiver 2 when the user operates the remote controller 3. The receiver 1 can also accept an instruction to switch the device that receives the broadcast from the receiver 1 to the receiver 2 by the operation unit 19 when the user operates the operation unit 19. In addition, the receiving device 2 can perform recording based on the broadcast received by the tuner 12 of the receiver 1. Recording based on the tuner 12 is reserved, and the video based on the broadcast received by the tuner 12. When video recording is started by the receiving device 2 while “” is being output, the receiver 1 receives an instruction for switching from the receiving device 2.

  If no instruction for switching is received in step S501 (S501: NO), the control unit 11 continues to wait for reception of an instruction for switching while the receiver 1 outputs video and audio. . When an instruction for switching is received in step S501 (S501: YES), the control unit 11 changes the setting of the video output in the receiver 1 from the setting for outputting the video based on the broadcast received by the tuner 12. Then, the setting is changed to output video based on the video signal input from the receiving device 2 (S502). Next, the control unit 11 transmits a reception instruction for instructing the reception device 2 to receive a broadcast as CEC data to the reception device 2 via the HDMI terminal 14 (S503).

  The receiving apparatus 2 receives the reception instruction at the HDMI terminal 24 (S504), and the control unit 21 of the receiving apparatus 2 sends a request for channel information indicating the broadcast channel that the receiver 1 has received so far to the CEC. Data is transmitted to the receiver 1 via the HDMI terminal 24 (S505). The receiver 1 receives a request for channel information at the HDMI terminal 14 (S506), and the control unit 11 uses the HDMI terminal as channel information indicating the channel of the broadcast that has been received by the tuner 12 until then as CEC data. 14 to the receiving device 2 (S507).

  The receiving device 2 receives the channel information at the HDMI terminal 24 (S508), and the control unit 21 determines whether or not the channel indicated by the received channel information is a channel that can receive the broadcast by the tuner 22 of the receiving device 2. Is determined (S509). If the channel is a channel that can be received by the tuner 22 (S509: YES), the control unit 21 causes the tuner 22 to start receiving the broadcast on the channel indicated by the received channel information (S510). If the channel is not a channel in which the tuner 22 can receive a broadcast (S509: NO), the control unit 21 causes the tuner 22 to start receiving a broadcast on another receivable channel (S511). The broadcast receiving system ends the reception switching process. After starting the reception of the broadcast, the reception device 2 transmits the video signal and the audio signal based on the broadcast received by the tuner 22 from the HDMI terminal 24 to the receiver 1, and the receiver 1 receives from the reception device 2. Video and audio are output based on the video signal and audio signal.

  Note that if the channel is not a channel in which the tuner 22 can receive the broadcast in step S509, the reception device 2 transmits error information indicating that the broadcast cannot be received to the receiver 1, and the receiver 1 displays the error as a video. Processing to output to the output unit 17 may be performed. In a form in which a plurality of receiving devices 2, 2,... Are connected to the receiver 1, when error information is received from one receiving device 2, processing for transmitting a receiving instruction to another receiving device 2 is performed. You may go.

  As described in detail above, in the broadcast receiving system according to the present embodiment, when receiving an instruction to switch a device that receives a broadcast from the receiver 1 to the receiving device 2 in order to output video, the receiving device 2 Receives channel information from the receiver 1 and starts receiving broadcasts on the channel indicated by the channel information. As a result, when the device that receives the broadcast in order to output video switches from the receiver 1 to the receiver 2, the receiver 2 broadcasts on the same channel as the broadcast channel that the receiver 1 was receiving. The user can continue to watch the same broadcast program. In addition, even when recording is scheduled using the tuner 12 of the receiver 1 and recording is started while viewing using the tuner 12 is being performed, the receiving device 2 does not change the receiver 1. Can receive the broadcast on the same channel as the broadcast channel received by the user, and the user can continue to watch the same broadcast program.

  Further, in the broadcast receiving system of the present invention, while the receiver 1 is outputting the video based on the broadcast received by the tuner 12, the output of the video based on the broadcast is stopped and the video recorded by the receiving device 2 is stopped. When the reproduction is performed and then the reproduction is finished, a process of restarting the output of the video based on the broadcast can be performed. In the present invention, the process of steps S501 to S511 is performed at the time of this process, so that the same channel as the broadcast channel received by the receiver 1 is selected. First, the receiver 1 receives an instruction for switching reception in step S501 when starting the reproduction of the video recorded by the receiving device 2. For example, by outputting a list of data recorded by the optical disc or HDD 27 by the video output unit 17 and operating the remote control 3 by the user and receiving an instruction to select video data to be reproduced by the remote control reception unit 15, The receiver 1 receives the instruction in step S501. In addition, when the user operates the remote controller 3 and receives an instruction to reproduce the video with the remote control receiver 15, the receiver 1 receives the instruction in step S501. In addition, when the user operates the operation unit 29 of the receiving device 2 and the receiving device 2 receives an instruction for video reproduction by the operating unit 29, the receiving device 2 transmits an instruction to switch the video to the receiver 1. Thus, the receiver 1 accepts the instruction in step S501.

  Thereafter, the broadcast receiving system executes the processes of steps S502 to S508. The receiving device 2 stores the received channel information in the control unit 21 and executes video reproduction processing. That is, the receiving device 2 transmits a video signal based on the data read from the HDD 27 or the optical disk drive 28, and the receiver 1 outputs a video based on the video signal from the receiving device 2. After the video playback process is completed, the receiving device 2 executes the process of step S510, whereby the same channel as the broadcast channel received by the receiver 1 before the video playback is selected. As described above, even when the recorded video is played back while the video based on the broadcast is being output by the processing of the present embodiment and the playback is finished after that, the receiving device 2 is received by the receiver 1. The user can receive the broadcast on the same channel as the broadcast channel, and the user can continuously view the same broadcast program.

  Note that the broadcast receiving system according to the present embodiment may also have the function described in the first to fourth embodiments.

(Embodiment 6)
In the fifth embodiment, a mode in which channel information is requested from the receiving device 2 that receives the broadcast to the receiver 1 is shown. However, in the sixth embodiment, the receiver 1 has a plurality of receiving devices 2, 2, and 2. ... A mode in which connection is possible and the receiver 2 to be switched is selected by the receiver 1 will be described. It is assumed that a plurality of receiving devices 2, 2,... Can be connected to the receiver 1. In other respects, the configuration of the broadcast receiving system according to the sixth embodiment is the same as that of the first embodiment, and the description thereof is omitted. FIG. 8 is a flowchart showing a procedure of processing performed by the broadcast receiving system according to the sixth embodiment.

  A plurality of receiving devices 2, 2,... Are connected to the receiver 1. While the receiver 1 is outputting video and audio based on the broadcast received by the tuner 12, the control unit 11 switches the receiver that receives the broadcast from the receiver 1 to the receiver 2 in order to output the video. A process of waiting for reception of the instruction is performed (S61). The specific method in which the receiver 1 receives an instruction for switching is the same as in the fifth embodiment. The receiver 1 can also receive an instruction for designating the receiving device 2 to which the device that receives the broadcast among the plurality of receiving devices 2, 2. When no instruction for switching is received (S61: NO), the control unit 11 continues to wait for reception of an instruction for switching while the receiver 1 outputs video and audio.

  When an instruction for switching is received in step S61 (S61: YES), the control unit 11 acquires information indicating whether each receiving device 2 is a device capable of receiving a broadcast of the same channel as the receiver 1. (S62). Specifically, the control unit 11 receives the receiver 1 from various broadcasts such as terrestrial broadcasts, whether or not each receiver 2 is equipped with a tuner, whether the tuner is in use, or the like. A command for inquiring whether or not the broadcast of the receiving device 2 can be received by the tuner of each receiver 2 and whether or not the broadcast of the channel received by the receiver 1 can be received by the tuner of each receiver 2 Is transmitted to each receiving apparatus 2 via the HDMI terminal 14. For example, even if the receiving device 2 includes the tuner 22, if the tuner 22 does not support the type of broadcast received by the receiver 1 such as terrestrial broadcasting or satellite broadcasting, the receiving device 2 receives the image. Broadcasts on the same channel as the machine 1 cannot be received. If the tuner is in use for recording or the like, it cannot be used for receiving broadcasts. Even if the tuner 22 is compatible with the type of broadcast being received by the receiver 1, if the information for decoding the broadcast of the same channel as the receiver 1 is not acquired, the receiver 2 receives the receiver 2. 1 cannot be broadcast on the same channel. Information for decoding can be acquired by the receiving device 2 by, for example, mounting a memory card (not shown) on which necessary information is recorded after a contract for receiving a broadcast is made. In response to the inquiry command from the receiver 1, each receiving device 2 transmits returned CEC data to the receiver 1. By receiving the reply CEC data from each receiving device 2 at the HDMI terminal 14, the control unit 11 receives information indicating whether each receiving device 2 is a device capable of receiving a broadcast of the same channel as the receiver 1. get. The receiver 1 acquires information related to the function of the receiving device 2 at startup or when the receiving device 2 is connected, stores the acquired information in the control unit 11 or the like, and the control unit 11 stores the acquired information. The process of step S62 may be executed by reading the information.

  Next, based on the acquired information, the control unit 11 can receive a broadcast of the same channel as the receiver 1 as the switching destination receiving device 2 from among the plurality of receiving devices 2, 2,. 2 is selected (S63). If the switching destination receiving device 2 is designated in step S61 and the designated receiving device 2 can receive broadcasts of the same channel as the receiver 1, the control unit 11 designates the designated reception in step S63. Device 2 is selected. Even if the receiving device 2 is designated as the switching destination in step S61, if the designated receiving device 2 cannot receive the broadcast of the same channel as the receiver 1, in step S63, the control unit 11 selects another receiving device. 2 is selected. If there are a plurality of receiving devices 2 that can receive the same channel broadcast as the receiver 1, in step S63, the control unit 11 has a lower management number assigned to each receiving device 2 for management. One receiving device 2 is selected according to a predetermined rule, such as selecting the receiving device 2. If there is no receiving device 2 that can receive the same channel broadcast as the receiver 1, the control unit 11 terminates the reception switching process or causes the receiving device 2 to select another channel. Do.

  Next, the control unit 11 sets the video output setting in the receiver 1 from the setting for outputting the video based on the broadcast received by the tuner 12, and the video based on the video signal input from the receiving device 2 selected. (S64). Next, the control unit 11 selects the reception instruction instructing the reception device 2 to receive the broadcast and the channel information indicating the broadcast channel received by the tuner 12 as CEC data in step S63. The data is transmitted to the receiving device 2 via the HDMI terminal 14 (S65).

  The receiving device 2 receives the reception instruction and the channel information at the HDMI terminal 24 (S66), and the control unit 21 of the receiving device 2 causes the tuner 22 to start receiving the broadcast on the channel indicated by the received channel information (S67). . The broadcast receiving system ends the reception switching process. After the reception of the broadcast is started, the reception device 2 transmits a video signal and an audio signal based on the broadcast received by the tuner 12 from the HDMI terminal 24 to the receiver 1, and the receiver 1 receives from the reception device 2. Video and audio are output based on the video signal and audio signal.

  As described in detail above, in the broadcast receiving system according to the present embodiment, as in the case of the fifth embodiment, when the apparatus that receives the broadcast is switched from the receiver 1 to the receiver 2 in order to output the video, The receiving device 2 receives a broadcast on the same channel as the broadcast channel received by the receiver 1. The user can continuously view the same broadcast program. Similarly, even when recording using the tuner 12 is started while viewing using the tuner 12, the user can continue to view the same broadcast program.

  In the present embodiment, a plurality of receiving devices 2, 2,... Are connected to the receiver 1. However, in the broadcast receiving system of the present invention, a single receiving device 2 is the receiver 1. Even if it is connected to, it is possible to execute the processing of steps S61 to S67. Also in the present embodiment, as in the fifth embodiment, the video recorded by the receiving device 2 is reproduced while the video based on the broadcast received by the receiver 12 is received by the receiver 1, Thereafter, when the reproduction is finished, the receiving device 2 can perform a process of receiving a broadcast on the same channel as the broadcast channel received by the receiver 1.

  Further, the broadcast receiving system according to the present embodiment may be in a form provided with the functions described in the first to fourth embodiments.

(Embodiment 7)
In the first to fourth embodiments, a mode in which a device that receives a broadcast is switched from the receiving device 2 to the receiver 1 is shown. In the fifth and sixth embodiments, a device that receives a broadcast is changed from the receiver 1 to the receiving device 2. In the seventh embodiment, a mode in which a device that receives a broadcast is switched between receiving devices connected to the receiver 1 will be described. FIG. 9 is a conceptual diagram showing the appearance of the broadcast receiving system according to the seventh embodiment. A receiver 2 and a receiver 4 are connected to the receiver 1. The internal configurations of the receiver 1 and the receiving device 2 are the same as those in the first embodiment, and a description thereof will be omitted. FIG. 10 is a block diagram illustrating an internal configuration of the receiving device 4. Similar to the receiving device 2, the receiving device 4 includes a control unit 41, a tuner 42, an HDMI transmitting unit 43, an HDMI terminal 44, a remote control receiving unit 45, a processing unit 46, an HDD 47, an optical disk drive 48, and an operation unit 49. . The HDMI terminal 44 is connected to the HDMI terminal 14 of the receiver 1 through an HDMI cable.

  In the present embodiment, a process of switching a broadcast receiving apparatus from the switching source receiving apparatus 2 to the switching destination receiving apparatus 4 will be described. FIG. 11 is a flowchart showing a procedure of processing performed by the broadcast receiving system according to the seventh embodiment.

  While the receiver 2 receives a broadcast by the tuner 22 and transmits a video signal to the receiver 1, and the receiver 1 outputs a video based on the video signal, the control unit 21 of the receiver 2 displays the video. In order to output, a process of waiting for acceptance of an instruction for switching the apparatus that receives the broadcast from the receiving apparatus 2 to the receiving apparatus 4 is performed (S701). For example, the receiver 1 accepts an instruction to switch the receiving apparatus 2 from the receiving apparatus 2 to the receiving apparatus 4 by the remote controller receiving unit 15 when the user operates the remote controller 3, and the received instruction is received by the receiving apparatus 2. The receiving device 2 receives the switching instruction. The receiving device 2 can also receive an instruction to switch the receiving device 2 from the receiving device 2 to the receiving device 4 by the remote control receiving unit 25 when the user operates the remote control 3.

  If no instruction for switching is received in step S701 (S701: NO), the control unit 21 continues to wait for reception of an instruction for switching while receiving the broadcast. When an instruction for switching is received in step S701 (S701: YES), the control unit 21 sets video output on the receiver 1 to output video based on the video signal from the receiving device 2. Then, a change instruction for instructing to change to a setting for outputting video based on the video signal from the receiving device 4 is transmitted as CEC data to the receiver 1 via the HDMI terminal 24 (S702). The receiver 1 receives an instruction to change the video output setting via the HDMI terminal 14 (S703), and the control unit 11 outputs the video based on the video signal input from the receiving device 2 with the video output setting. The setting is changed to a setting for outputting video based on the video signal input from the receiving device 4 (S704).

  After step S702, the control unit 21 of the reception apparatus 2 transmits a reception instruction instructing the reception apparatus 4 to receive a broadcast as CEC data to the receiver 1 via the HDMI terminal 14 (S705). . The receiver 1 relays the reception instruction from the reception device 2 to the reception device 4 (S706), and the reception device 4 receives the reception instruction at the HDMI terminal 44 (S707). The control unit 41 of the reception device 4 transmits a request for channel information indicating the broadcast channel that has been received by the reception device 2 to the receiver 1 as CEC data via the HDMI terminal 44 (S708). . The receiver 1 relays the request for channel information from the receiving device 4 to the receiving device 2 (S709), and the receiving device 2 receives the request for channel information at the HDMI terminal 24 (S710). The control unit 21 of the receiving device 2 transmits channel information indicating the broadcast channel that has been received by the tuner 22 to the receiver 1 via the HDMI terminal 14 as CEC data (S711). The receiver 1 relays the channel information from the receiving device 2 to the receiving device 4 (S712), and the receiving device 4 receives the channel information at the HDMI terminal 44 (S713).

  The control unit 41 of the receiving device 4 determines whether or not the channel indicated by the received channel information is a channel that can be received by the tuner 42 (S714). If the channel is a channel capable of receiving broadcast by the tuner 42 (S714: YES), the control unit 41 causes the tuner 42 to start receiving broadcast on the channel indicated by the received channel information (S715). If the channel is not a channel in which the tuner 42 can receive a broadcast (S714: NO), the control unit 41 causes the tuner 42 to start receiving a broadcast on another receivable channel (S716). The broadcast receiving system ends the reception switching process. After the reception of the broadcast is started, the reception device 4 transmits a video signal and an audio signal based on the broadcast received by the tuner 42 from the HDMI terminal 44 to the receiver 1, and the receiver 1 receives from the reception device 4. Video and audio are output based on the video signal and audio signal.

  Note that if the channel is not a channel in which the tuner 42 can receive the broadcast in step S714, the reception device 4 transmits error information indicating that the broadcast cannot be received to the receiver 1, and the receiver 1 displays the error as a video. Processing to output to the output unit 17 may be performed. Further, in a form in which another receiver is connected to the receiver 1, when error information is received from the receiver 4, processing for transmitting a reception instruction to another receiver may be performed.

  As described above in detail, in the broadcast receiving system according to the present embodiment, when receiving an instruction to switch the receiving device 2 to the receiving device 4 to receive a broadcast in order to output video, the receiving device 4 Receives channel information from the receiving device 2 and starts receiving broadcast on the channel indicated by the channel information. As a result, when the device that receives the broadcast in order to output the video switches from the receiving device 2 to the receiving device 4, the receiving device 4 broadcasts on the same channel as the broadcast channel that the receiving device 2 received. The user can continue to watch the same broadcast program.

  Also, the broadcast receiving system according to the present embodiment may be provided with the functions described in the fifth or sixth embodiment.

(Embodiment 8)
In the seventh embodiment, the channel information is requested from the receiving device 4 that is the switching destination of the reception to the receiving device 2, but in the eighth embodiment, the reception information is received from the receiver 1 and the receiving device 4. A mode of selecting the switching destination by the receiving device 2 will be described. The configuration of the broadcast receiving system according to the eighth embodiment is the same as that of the seventh embodiment, and the description thereof is omitted. 12 and 13 are flowcharts showing a procedure of processes performed by the broadcast receiving system according to the eighth embodiment.

  While the receiver 2 receives a broadcast by the tuner 22 and transmits a video signal to the receiver 1, and the receiver 1 outputs a video based on the video signal, the control unit 21 of the receiver 2 displays the video. In order to output, a process of waiting for reception of an instruction for switching the apparatus that receives the broadcast from the receiving apparatus 2 to the receiver 1 or the receiving apparatus 4 is performed (S801). For example, when the user operates the remote controller 3, the receiver 1 receives an instruction to switch the broadcast receiving apparatus from the receiving apparatus 2 using the remote control receiver 15, and transmits the received instruction to the receiving apparatus 2 for reception. The device 2 receives the switching instruction. In addition, the receiving device 2 can accept an instruction to switch the receiving device 2 from the receiving device 2 by the remote control receiving unit 25 when the user operates the remote control 3. In addition, when recording is scheduled using the tuner 22 and recording is started while the tuner 22 is receiving a broadcast, the control unit 21 determines that an instruction for switching has been received. . In addition, the receiving device 2 may receive an instruction for designating a destination to switch a broadcast receiving device among the receiver 1 and the receiving device 4 at the remote control receiving unit 15 of the receiver 1 or the remote control receiving unit 25 of the receiving device 2. Is possible. If no instruction for switching is received (S801: NO), the control unit 21 continues to wait for reception of an instruction for switching while receiving the broadcast.

  When an instruction for switching is received in step S801 (S801: YES), the control unit 21 indicates whether the receiver 1 and the receiving device 4 are devices that can receive broadcasts of the same channel as the receiving device 2. A process of acquiring information is performed (S802). Specifically, the control unit 21 determines whether the tuner is provided, whether the tuner is in use, whether the reception device 2 can receive the type of broadcast, and the reception device. An instruction for inquiring whether or not the broadcast of the channel 2 is received can be transmitted as CEC data to the receiver 1 and further transmitted to the receiver 4 via the receiver 1. In response to the inquiry command from the receiving device 2, the receiver 1 transmits the returned CEC data to the receiving device 2, and the receiving device 4 transmits the returned CEC data to the receiving device 2 via the receiver 1. . By receiving the reply CEC data at the HDMI terminal 14, the control unit 21 of the receiving device 2 acquires information indicating whether the receiver 1 and the receiving device 4 can receive broadcasts of the same channel. Note that the receiving device 2 acquires information regarding the functions of the receiver 1 and the receiving device 4 at the time of activation or when the receiving device 2 or the receiving device 4 is connected to the receiver 1, and the acquired information is transmitted to the control unit 21. For example, the control unit 21 may execute the process of step S802 by reading the stored information.

  Next, based on the acquired information, the control unit 21 selects, from the receiver 1 and the receiving device 4, a receiving switching destination device that can receive broadcasts of the same channel as the receiving device 2 (S803). . In step S801, when the switching destination device is designated and the designated device can receive the broadcast of the same channel as the receiving device 2, the control unit 21 is designated as the reception switching destination in step S803. Select a device. If the designated device cannot receive the broadcast of the same channel as the receiving device 2 even if it is the device designated as the switching destination in step S801, the control unit 21 selects another device as the switching destination in step S803. To do. If both the receiver 1 and the receiver 4 can receive the same channel broadcast as the receiver 2, the control unit 21 selects a predetermined rule such as preferentially selecting the receiver 1 in step S803. To select the device to switch reception to. If neither the receiver 1 nor the receiving device 4 can receive the same channel broadcast as the receiving device 2, the control unit 21 ends the reception switching process, or receives another channel on the receiver 1 or the receiving channel. Processing for selecting the apparatus 4 is performed.

  Next, the control unit 21 determines whether or not the reception switching destination device selected in step S803 is the receiver 1 (S804). When the switching destination is the receiver 1 (S804: YES), the control unit 21 receives the instruction to instruct the receiver 1 to receive the broadcast, and the channel indicating the broadcast channel received by the tuner 22. Information is transmitted as CEC data to the receiver 1 via the HDMI terminal 14 (S805). The receiver 1 receives the reception instruction and the channel information at the HDMI terminal 14 (S806), and the control unit 11 of the receiver 1 causes the tuner 12 to start receiving the broadcast on the channel indicated by the received channel information (S807). . After the receiver 1 starts receiving the broadcast, the broadcast receiving system ends the reception switching process, and the receiver 1 outputs video and audio based on the received broadcast.

  When the switching destination is not the receiver 1 but the receiving device 4 in step S804 (S804: NO), the control unit 21 sets the video output setting in the receiver 1 based on the video signal from the receiving device 2. A change instruction for instructing to change from the setting for outputting the recorded video to the setting for outputting the video based on the video signal from the receiving device 4 is transmitted as CEC data to the receiver 1 via the HDMI terminal 24. (S808). The receiver 1 receives a video output setting change instruction at the HDMI terminal 14 (S809), and the control unit 11 outputs the video based on the video signal input from the receiving device 2 with the video output setting. The setting is changed to a setting for outputting video based on the video signal input from the receiving device 4 (S810).

  After step S808, the control unit 21 of the reception apparatus 2 uses the reception instruction for instructing the reception apparatus 4 to receive the broadcast and the channel information indicating the broadcast channel received by the tuner 22 as CEC data. Then, the data is transmitted to the receiver 1 via the HDMI terminal 14 (S811). The receiver 1 relays the reception instruction and channel information from the reception apparatus 2 to the reception apparatus 4 (S812), and the reception apparatus 4 receives the reception instruction and channel information at the HDMI terminal 44 (S813). The control unit 41 of the receiving device 4 causes the tuner 42 to start receiving a broadcast on the channel indicated by the received channel information (S814). The broadcast receiving system ends the reception switching process. After the reception of the broadcast is started, the reception device 4 transmits a video signal and an audio signal based on the broadcast received by the tuner 42 from the HDMI terminal 44 to the receiver 1, and the receiver 1 receives from the reception device 4. Video and audio are output based on the video signal and audio signal.

  As described above in detail, in the broadcast receiving system according to the present embodiment, when receiving an instruction to switch a device that receives a broadcast from the receiving device 2 to the receiver 1 or the receiving device 4 in order to output an image. The reception of the broadcast is started by an apparatus that can receive the broadcast on the same channel as the reception apparatus 2 among the receiver 1 and the reception apparatus 4. As a result, when an apparatus for receiving a broadcast is switched from the receiving apparatus 2 to output a video, the receiver 1 receives the receiver 1 or the receiving apparatus on the same channel as the broadcast channel that the receiving apparatus 2 has received. A video is output based on the broadcast received by the device 4, and the user can continuously view the same broadcast program. In addition, even when recording using the tuner 22 is started while viewing using the tuner 22 of the receiving device 2, the user can continuously view the same broadcast program. .

  In this embodiment, a single receiver 4 is connected to the receiver 1. However, in the broadcast receiving system of the present invention, a plurality of receivers 4, 4,. It may be in the form of being connected to. Even in this case, the broadcast receiving system of the present invention performs the processes of steps S801 to S814 by performing a process of selecting an appropriate apparatus from the receiver 1 and the receivers 4, 4,. It is possible to execute. Also, the broadcast receiving system according to the present embodiment may be provided with the functions described in the fifth or sixth embodiment.

  In the above first to eighth embodiments, the receiving devices 2 and 4 are recording devices. However, the present invention is not limited to this. The receiving devices 2 and 4 of the present invention need only include the tuners 22 and 42, and may be a tuner device or a set top box that can be connected to the receiver 1. In the first to eighth embodiments, the mode of using HDMI as an interface for transmitting and receiving data between devices has been described. However, the present invention provides a video signal and a stop command for causing the receiver 1 to output a video. Any other interface may be used as long as it is a format that can individually transmit and receive control data such as.

DESCRIPTION OF SYMBOLS 1 Receiver 11 Control part 12 Tuner 13 HDMI receiving part 14 HDMI terminal 15 Remote control receiving part 17 Video | video output part 2,4 Receiving device 21,41 Control part 22,42 Tuner 23,43 HDMI transmission part 24,44 HDMI terminal 25, 45 Remote control receiver

Claims (5)

Each of which includes a receiver capable of receiving a broadcast and a plurality of receivers, wherein the receiver includes means for transmitting a video signal relating to the received broadcast to the receiver; In a broadcast receiving system comprising means for outputting a video based on a received video signal and a video based on a received broadcast,
The receiver is
Means for transmitting a command for inquiring whether or not it is possible to receive a broadcast of the same channel as the received channel to the plurality of receiving devices in a state of outputting a video based on the received broadcast; ,
The plurality of receiving devices are:
Means for transmitting to the receiver information indicating whether or not it is possible to receive a broadcast of the same channel as the channel in response to the command;
The receiver further comprises:
Means for selecting a receiving device capable of receiving a broadcast of the same channel as the channel from the plurality of receiving devices based on information received from the plurality of receiving devices ;
Means for transmitting channel information indicating the channel of the received broadcast to the receiving device selected by the means;
Means for changing a state of outputting a video based on the received broadcast to a state of outputting a video based on the video signal received from the receiving device;
The receiving device is:
A broadcast receiving system comprising means for starting reception of a broadcast on a channel indicated by channel information received from the receiver. Each of which includes a receiver capable of receiving a broadcast and a plurality of receivers, wherein the receiver includes means for transmitting a video signal relating to the received broadcast to the receiver; In a broadcast receiving system comprising means for outputting a video based on a received video signal and a video based on a received broadcast,
The receiving device is:
It is possible to receive a broadcast of the same channel as the received channel from the receiver and other receiving devices in a state where the video based on the broadcast received by the receiving device is output by the receiver. A selection means for selecting a device;
Means for transmitting channel information indicating a received broadcast channel to the receiver when the device selected by the selecting means is the receiver;
Means for transmitting, to the receiver, a change instruction instructing to change a video signal receiving source to the other receiving device when the device selected by the selecting means is another receiving device;
Means for transmitting the channel information to the other receiving device,
The receiver is
Means for starting reception of broadcast on the channel indicated by the channel information when the channel information is received;
Means for changing a state of outputting video based on the video signal received from the receiving device to a state of outputting video based on the received broadcast;
Means for changing a state of outputting a video based on a video signal received from the receiving device to a state of outputting a video based on a video signal received from the other receiving device when the change instruction is received; With
The other receiving device is:
A broadcast receiving system comprising: means for starting reception of a broadcast on a channel indicated by the channel information when the channel information is received. Means for receiving a broadcast, means for receiving a video signal relating to the broadcast received by the external device from the external device, and outputting a video based on the video signal received from the external device and a video based on the received broadcast A receiver comprising means,
It is possible to receive video signals from multiple external devices , and receive broadcasts on the same channel as the received channel to the multiple external devices in a state of outputting video based on the received broadcasts Means for sending an instruction asking whether or not it is possible ,
Means for receiving from the plurality of external devices information indicating whether or not it is possible to receive a broadcast of the same channel as the channel in response to the command;
Means for selecting an external device capable of receiving a broadcast of the same channel as the channel from the plurality of external devices based on the information received by the means;
Means for transmitting channel information indicating the channel of the received broadcast to the external device selected by the means;
And a means for changing a state of outputting a video based on the received broadcast to a state of outputting a video based on a video signal received from the external device. Means for receiving a broadcast, means for receiving a video signal relating to the broadcast received by the external device from the external device, and outputting a video based on the video signal received from the external device and a video based on the received broadcast A receiver comprising means,
The broadcast channel received by the one external device in a state in which the video signal can be received from a plurality of external devices and the video based on the video signal received from the one external device is output. Means for receiving channel information indicating;
Means for starting reception of a broadcast on the channel indicated by the channel information when the means receives the channel information from the one external device;
Means for changing a state of outputting a video based on a video signal received from the one external device to a state of outputting a video based on the received broadcast;
It is possible to receive video signals from multiple external devices, and change the video signal reception source to another external device while outputting video based on the video signals received from one external device. Means for receiving a change instruction for instructing
When the means receives the change instruction, it outputs a video based on the video signal received from the one external device, and outputs a video based on the video signal received from the other external device. And a means for changing to a receiver. In a receiving apparatus comprising means for receiving a broadcast, means for transmitting a video signal related to the received broadcast to the outside, and means for communicating with a plurality of external devices,
Whether or not it is possible to receive a broadcast of the same channel as the received channel to a plurality of external devices capable of communication in a state where a video signal related to the received broadcast is being transmitted to the outside. Means for sending an instruction to inquire about;
Means for receiving from the plurality of external devices information indicating whether or not it is possible to receive a broadcast of the same channel as the channel in response to the command;
Means for selecting an external device capable of receiving a broadcast of the same channel as the channel from the plurality of external devices based on the information received by the means;
Means for transmitting channel information indicating the broadcast channel received to the external device selected by the means.

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