JP2008005270A - Television receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a television receiver for reproducing the voice of broadcast information such as voice broadcasting received by one tuner, and for displaying only the video of the broadcast information such as television broadcasting received by the other tuner, and for omitting the video of voice broadcasting. <P>SOLUTION: The television receiver is configured by having an operation mode in which only a voice included in first broadcast information received by a tuner 1a is output to a speaker 13, and only a video included in second broadcast information received by a turner 1b different from the turner 1a is output to a liquid crystal display part 21. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a television receiver having a plurality of tuners for receiving broadcast information such as television broadcasts and audio broadcasts and capable of simultaneously outputting a plurality of broadcast information received by the plurality of tuners. It is.

Patent Document 1 discloses a television receiver that receives and outputs not only television broadcasts including video and audio, but also audio broadcasts such as radio broadcasts and music broadcasts mainly including audio. The audio broadcast is attached with characters, still images, simplified video, etc. indicating information related to the audio included in the audio broadcast.
In Patent Document 1, it is proposed to save power by not displaying an image on a monitor screen when outputting the audio broadcast.
Further, Patent Document 2 proposes that when outputting the audio broadcast, a video other than the video included in the audio broadcast is read from the storage means and displayed.

By the way, a television receiver that conventionally has a plurality of tuners that receive broadcast information such as the television broadcast and the audio broadcast, and that can simultaneously output a plurality of broadcast information received by the plurality of tuners. There is a machine. FIG. 4 is a view showing an example of a display screen of a conventional television receiver Y having two tuners.
As shown in FIG. 4 (a), the television receiver Y has a single mode in which the video A included in the broadcast information received by one tuner is displayed alone, as shown in FIG. 4 (a). There is a dual mode in which videos A and B included in broadcast information received by each of the two tuners are displayed simultaneously. Note that the single mode and the dual mode are switched according to an operation of a mode switching key provided on a remote controller, for example.
Here, in the single mode, audio corresponding to the video A is reproduced, and in the dual mode, only audio corresponding to either the video A or B is reproduced. As shown in FIG. 4B, in the dual mode, for example, “♪” is added to the video corresponding to the audio being played back, so that the audio being played back corresponds to any video. It can be judged whether there is.
JP 2001-275061 A JP 2005-323329 A

However, the television receiver Y cannot reproduce the audio corresponding to the video A while displaying the video B alone. That is, in the television receiver Y, when reproducing the audio included in the audio broadcast, it is necessary to display the video included in the audio broadcast, and instead of the video, the TV different from the audio broadcast is displayed. There is a problem that the video included in the broadcast information such as broadcast cannot be displayed alone, which is not convenient.
Therefore, the present invention has been made in view of the above circumstances, and the object of the present invention is to reproduce the sound of broadcast information such as an audio broadcast received by one tuner while being received by another tuner. An object of the present invention is to provide a television receiver capable of displaying only a video of broadcast information such as a television broadcast and omitting the audio broadcast video.

To achieve the above object, the present invention provides a plurality of tuners for receiving broadcast information including video and audio, video display means for displaying video included in the broadcast information, and audio included in the broadcast information. And a sound reproducing means for reproducing the sound, wherein only the sound included in the first broadcast information received by the first tuner of the tuner is only the sound. A television receiver characterized in that it outputs to the video display means only the video included in the second broadcast information received by the second tuner different from the first tuner while outputting to the audio reproduction means. Configured as
According to the present invention, the user can watch the video included in the second broadcast information displayed alone on the video display means while listening to the audio included in the first broadcast information. In particular, the present invention is suitable when the first broadcast information is an audio broadcast whose video is not particularly important, such as a radio program or a music program.

In addition, only the audio included in the first broadcast information is output to the audio reproduction means, and the first video included in the first broadcast information and the second video included in the second broadcast information Is output to the video display means, and it is desirable that only the output of the first video is stopped on condition that a predetermined operation means is operated when the output is being performed. By changing the output state in this way, the user can check the video included in the first broadcast information.
Further, it is desirable to display information such as a broadcast station that broadcasts broadcast information including the audio being output or a channel related to the broadcast station. Thereby, when the video displayed by the video display unit and the audio reproduced by the audio reproduction unit are included in different broadcast information, it is possible to make the user recognize that fact.

  According to the present invention, the user can watch the video included in the second broadcast information displayed alone on the video display means while listening to the audio included in the first broadcast information. In particular, the present invention is suitable when the first broadcast information is an audio broadcast whose video is not particularly important, such as a radio program or a music program.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that the present invention can be understood. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
FIG. 1 is a block diagram showing a schematic configuration of the television receiver X according to the embodiment of the present invention, and FIG. 2 explains an example of a procedure of video display processing executed in the television receiver X. FIG. 3 is a diagram for explaining a display example by the television receiver X.
First, the configuration of the television receiver X according to the embodiment of the present invention will be described using the block diagram shown in FIG.
As shown in FIG. 1, the television receiver X includes a plurality of tuners 1a (an example of a first tuner) and 1b (an example of a second tuner), a plurality of video processing circuits 4a and 4b, and a screen composition. A switching circuit 5, a control circuit 8, a remote controller 9a, a remote control interface (I / F) circuit 9, a liquid crystal display unit 21, an audio switching circuit 10, an audio processing circuit 11, an amplifier 12, and a speaker 13. , Are configured. In addition to these, it also includes components of a general television receiver.
The tuners 1a and 1b receive broadcast information such as television broadcast and audio broadcast including video and audio from the broadcast receiving antenna 20. Here, the broadcast information includes broadcast information of a plurality of channels broadcast from a plurality of broadcasting stations.
The television receiver X operates in a single mode for outputting one broadcast information received by the tuner 1a and a dual mode for simultaneously outputting two broadcast information received by the tuner 1a and the tuner 1b. It is provided as a mode. The television receiver X according to the embodiment of the present invention is characterized by the contents of the dual mode, which will be described in detail later. In this embodiment, an example of switching between the single mode and the dual mode is shown. However, an example of switching between the multi mode for displaying three or more videos and the single mode with the same configuration is also another example. Is considered.

  The tuners 1a and 1b extract (select) the broadcast information of the broadcast channel designated by the control circuit 8, and transmit the video signal included in the broadcast information to the video processing circuits 4a and 4b. An audio signal included in the broadcast information is transmitted to the audio switching circuit 10. Hereinafter, a video based on a video signal included in broadcast information (an example of first broadcast information) received by the tuner 1a is referred to as a first video A (an example of a first video), and a broadcast received by the tuner 1b. A video based on the video signal included in the information (an example of the second broadcast information) is referred to as a second video B (an example of the second video).

The video processing circuit 4a performs various signal processing on the video signal transmitted from the tuner 1a, and the video processing circuit 4b performs various signals on the video signal transmitted from the tuner 1b. The processing is performed. For example, the video processing circuits 4a and 4b may perform A / D conversion of video signals, separation of horizontal and vertical synchronization signals from the A / D converted video signals, generation of clock signals phase-synchronized with the synchronization signals, A Separation of luminance and color signals from the video signal after / D conversion, predetermined image quality improvement processing, and the like are performed.
Video signals subjected to various signal processing in the video processing circuits 4a and 4b are transmitted from the video processing circuits 4a and 4b to the screen composition switching circuit 5.

In accordance with an instruction from the control circuit 8, the screen composition switching circuit 5 is configured to display a single video signal corresponding to a single display state in which one video is displayed on one screen and a dual video that displays two videos by dividing one screen. One of the dual video signals corresponding to the display state is generated, and the video signal is transmitted to the liquid crystal display unit 21.
Here, the single video signal is a normal general video signal, and is a video signal for causing the liquid crystal display unit 21 to display the first video A alone using all pixels.
On the other hand, the dual video signal is obtained by, for example, displaying the first video A on the left half of the liquid crystal display unit 21 and the second video B on the right half of the liquid crystal display unit 21. A video signal for simultaneously displaying A and the second video B on the liquid crystal display unit 21.
Further, the screen composition switching circuit 5 replaces the insertion information transmitted from the control circuit 8 with the function of superimposing the inserted information on the video signal to be output or the output video from the video processing circuits 4a and 4b. It also has a function of converting information transmitted from the control circuit 8 into a video signal and outputting it.
The liquid crystal display unit 21 includes a liquid crystal panel and its peripheral devices, and is an example of a video display unit that displays a video based on a video signal output from the screen synthesis switching circuit 5.

The audio switching circuit 10 receives an arbitrary one of the audio signals transmitted from the tuners 1 a and 1 b (a set of audio signals in the case of stereo) according to an instruction from the control circuit 8. The data is transmitted to the audio processing circuit 11.
The audio processing circuit 11 performs various signal processing such as equalization processing and surround processing on the audio signal transmitted from the audio switching circuit 10 in accordance with an instruction from the control circuit 8.
The amplifier 12 performs a process of amplifying or attenuating the audio signal after the various signal processing by the audio processing circuit 11 in accordance with an instruction from the control circuit 8, and transmits the processed audio signal to the speaker 13. It is.
The speaker 13 is an example of sound reproducing means for outputting sound based on the sound signal.

The control circuit 8 includes an MPU 8a which is an arithmetic means, a ROM 8b (EPROM) which is a storage means in which a control program executed by the MPU 8a is stored in advance, an EEPROM 8c which stores setting information written by processing executed by the MPU 8a, and the like. Provided, and controls the entire television receiver X.
The remote control interface circuit 9 acquires operation input information for the remote control 9a from the remote control (remote operation unit) 9a for operating the television receiver X by wireless transmission such as infrared transmission, and the operation input information is obtained. The data is transmitted to the control circuit 8.

The remote control 9a is provided with an operation selection switch 91, a channel selection key 92, a volume control key 93, a mode switching key 94 used for switching operation modes to be described later, an operation key 95 used for various selection operations, and the like. It has been.
The operation selection switch 91 is for selecting one of a first operation mode for performing an operation related to the first video A and a second operation mode for performing an operation related to the second video B. The remote controller 9a switches whether to transmit operation input information corresponding to either the tuner 1a or 1b according to the selection state of the operation selection switch 91.

The channel selection key 92 is for selecting (selecting) a channel to be extracted by the tuner 1a or 1b. Information of operation input to the channel selection key 92 is input to the control circuit 8 through the remote control interface circuit 9, and the control circuit 8 selects a channel to be selected for the tuner 1a or 1b according to the operation input information. specify. Thus, the video signal and audio signal of the designated channel are extracted by the tuner 1a or 1b.
The volume control keys 93 (volume up and down keys) 93 are used to adjust the volume of the sound output from the speaker 13. In accordance with operation input information for the volume control key 93, an output volume adjustment command is output from the control circuit 8 to the amplifier 12, and the output volume to the speaker 13 is adjusted by the amplifier 12 according to the command.
The operation key 95 has a cross key and a decision key used for various settings and selections. The Δ key and the ▽ key of the operation key 95 are used for switching between dual modes 1 to 3 described later in video display processing described later (see the flowchart in FIG. 2).

Next, an example of a procedure of video display processing realized by the control circuit 8 executing a predetermined control program will be described with reference to the flowchart shown in FIG. 2 and the display example of FIG. S1, S2,... Shown below represent identification symbols of processing procedures (steps). The video display process is started when a predetermined power-on operation is performed through the remote controller 9a.
First, in step S1, the control circuit 8 sets the operation mode of the television receiver X to the single mode.
As a result, as shown in FIG. 3A, the screen composition switching circuit 5 is controlled by the control circuit 8, and the first video A included in the broadcast information received by the tuner 1a is displayed on the liquid crystal display. It is output to the unit 21 and displayed alone on the entire liquid crystal display unit 21. Further, when the audio switching circuit 10 is controlled by the control circuit 8, the audio included in the broadcast information received by the tuner 1 a, that is, the audio corresponding to the first video A is transmitted to the audio processing circuit 11. , And reproduced from the speaker 13 through the amplifier 12. That is, in the single mode, only broadcast information received by the tuner 1a is output.

Next, in step S2, the control circuit 8 determines whether or not the mode switch key 94 has been pressed on the remote controller 9a. Specifically, the determination is made based on a signal input from the remote controller 9a through the remote control interface circuit 9 when the mode switching key 94 is pressed.
If it is determined that the mode switch key 94 has been pressed (Yes in S2), the process proceeds to step S3, while the mode switch key 94 is determined not to be pressed ( (NO side of S2), the process of step S2 is repeatedly executed, and the single mode is continued.

  In step S3, the operation mode is set to dual mode 1 by the control circuit 8. Here, the dual mode 1 means that the screen synthesis switching circuit 5 and the voice switching circuit 10 are controlled by the control circuit 8, and as shown in FIG. This is an operation mode in which the second video B is divided and displayed on the liquid crystal display unit 21 and audio corresponding to the first video A is output from the speaker 13. The first video A corresponding to the sound being reproduced is marked with “♪”. Here, the control circuit 8 when performing the process for executing the dual mode 1 corresponds to the simultaneous output means.

Thereafter, in step S4, the control circuit 8 determines whether or not the ▽ key of the operation key 95 is pressed. Specifically, the determination is made based on a signal input from the remote control 9a through the remote control interface circuit 9 when the ▽ key of the operation key 95 is pressed.
If it is determined that the ▽ key of the operation key 95 is not pressed (NO side of S4), the process proceeds to step S5, and if it is determined that the ▽ key is pressed (Yes in S4). Side), the process proceeds to step S6.

In step S5, as in step S2, the control circuit 8 determines whether or not the mode switching key 94 has been pressed. Specifically, the determination is made based on a signal input from the remote controller 9a through the remote control interface circuit 9 when the mode switching key 94 is pressed.
If it is determined that the mode switch key 94 is pressed (Yes in S5), the process proceeds to step S1, the operation mode is set to the single mode, and the video display process is executed again. Is done. On the other hand, if it is determined that the mode switching key 94 has not been pressed (No in S5), the process proceeds to step S4.

  In step S 6, the operation mode is set to dual mode 2 by the control circuit 8. Here, the dual mode 2 means that the screen synthesis switching circuit 5 and the voice switching circuit 10 are controlled by the control circuit 8, and as shown in FIG. The reduced first video A and the second video B enlarged than the dual mode 1 are divided and displayed on the liquid crystal display unit 21, and audio corresponding to the first video A is transmitted from the speaker 13. This is the output operation mode.

In the subsequent step S7, the control circuit 8 determines whether or not the ▽ key of the operation key 95 is pressed again. Specifically, the determination is made based on a signal input from the remote control 9a through the remote control interface circuit 9 when the ▽ key of the operation key 95 is pressed.
If it is determined that the ▽ key of the operation key 95 is not pressed (NO in S7), the process proceeds to step S8, and if it is determined that the ▽ key is pressed (Yes in S7). Side), the process proceeds to step S10.

In step S8, the control circuit 8 determines whether or not the Δ key of the operation key 95 is pressed. Specifically, when the Δ key of the operation key 95 is pressed, the determination is made based on a signal input from the remote control 9a through the remote control interface circuit 9.
If it is determined that the Δ key of the operation key 95 is not pressed (NO side of S8), the process proceeds to step S9, and if it is determined that the Δ key is pressed (Yes in S8). Side), the process proceeds to step S3, and the operation mode is switched to the dual mode 1.

  In step S9, as in step S2, it is determined by the control circuit 8 whether or not the mode switching key 94 has been pressed, and if it is determined that the mode switching key 94 has been pressed (Yes side of S9). , The process proceeds to step S1, the operation mode is set to the single mode, and the video display process is executed again. On the other hand, if it is determined that the mode switch key 94 has not been pressed (No in S9), the process proceeds to step S7.

  On the other hand, in step S 10, the operation mode is set to dual mode 3 by the control circuit 8. Here, the dual mode 3 means that the control circuit 8 controls the screen synthesis switching circuit 5 and the voice switching circuit 10 so that only the second video B is displayed as shown in FIG. Is an operation mode in which only the sound corresponding to the first video A is output from the speaker 13. Specifically, the output of the first video A from the screen composition switching circuit 5 to the liquid crystal display unit 21 is stopped by the control circuit 8, so that only the second video B is transferred to the liquid crystal display unit 21. Is displayed alone. Here, the control circuit 8 when performing the process for executing the dual mode 3 corresponds to the video output control means and the output stop means.

In this way, in the television receiver X, the audio included in the broadcast information received by the tuner 1a while displaying the second video B included in the broadcast information received by the tuner 1b alone. Can be played. Therefore, for example, when the broadcast information received by the tuner 1a is audio information, the television broadcast information received by the tuner 1b without displaying the first video A included in the audio information, etc. The second video B included in the broadcast information can be displayed, which is convenient and allows a desired viewing state of the user to be freely formed.
Further, since the television receiver X passes through the dual modes 1 and 2 at the time of transition from the single mode to the dual mode 3, the user can check the contents of the first video A. Of course, the dual mode 1 may be directly shifted to the dual mode 3 without going through the dual mode 2. It is also conceivable that the dual mode 1 can be shifted to the dual mode 3 by long-pressing the ▽ key.

  Also, since the dual mode 3 cannot be distinguished from the single mode at first glance, the control circuit 8 transmits “♪ A” as insertion information to the screen composition switching circuit 5, thereby “♪ A” is superimposed on the second video B. Accordingly, since “♪ A” is displayed on the second video B on the liquid crystal display unit 21, the user recognizes that the sound being reproduced corresponds to the first video A. be able to. Here, the control circuit 8 when executing such display processing corresponds to the voice information display means. Note that the character “A” displayed at this time may indicate information relating to the broadcasting station such as a broadcasting station that broadcasts the broadcasting information output from the tuner 1a, a channel of the broadcasting station, and the like. It is done.

In step S11, the control circuit 8 determines whether or not the Δ key of the operation key 95 has been pressed. Specifically, when the Δ key of the operation key 95 is pressed, the determination is made based on a signal input from the remote control 9a through the remote control interface circuit 9.
If it is determined that the Δ key of the operation key 95 has not been pressed (NO side of S11), the process proceeds to step S12, and if it is determined that the Δ key has been pressed (Yes in S11). Side), the process proceeds to step S6, and the operation mode is switched to the dual mode 2. The dual mode 3 may be shifted to the dual mode 1 when the Δ key is pressed for a long time.

In step S12, as in step S2, it is determined by the control circuit 8 whether or not the mode switching key 94 has been pressed, and if it is determined that the mode switching key 94 has been pressed (Yes side of S12) ), The process proceeds to step S1, the operation mode is set to the single mode, and the video display process is executed again. On the other hand, if it is determined that the mode switch key 94 has not been pressed (No in S12), the process proceeds to step S11.
As described above, in the television receiver X, only the second video B included in the broadcast information received by one tuner 1b is displayed on the liquid crystal display unit 21, while the other tuner is displayed. The sound included in the broadcast information received at 1a can be reproduced.

1 is a block diagram showing a schematic configuration of a television receiver according to an embodiment of the present invention. The flowchart for demonstrating an example of the procedure of the video display process performed in the television receiver which concerns on embodiment of this invention. FIG. 13 is a diagram for explaining a display example by the television receiver according to the embodiment of the present invention. The figure for demonstrating the example of a display by the conventional television receiver.

Explanation of symbols

1a, 1b ... tuners 4a, 4b ... video processing circuit 5 ... screen composition switching circuit 8 ... control circuit 9 ... remote control interface circuit 9a ... remote control 91 ... operation selection switch 92 ... channel selection key 93 ... volume control key 94 ... mode switching Key 95 ... Operation key 10 ... Audio switching circuit 11 ... Audio processing circuit 12 ... Amplifier 13 ... Speaker 20 ... Broadcast receiving antenna 21 ... Liquid crystal display unit

Claims (4)

A plurality of tuners for receiving broadcast information including video and / or audio; video display means for displaying video included in the broadcast information; and audio playback means for reproducing audio included in the broadcast information. A television receiver having
Only the audio included in the first broadcast information received by the first tuner of any one of the tuners is output to the audio reproduction means, and received by a second tuner different from the first tuner A television receiver comprising video output control means for outputting only video contained in second broadcast information to the video display means.   The television receiver according to claim 1, wherein the first broadcast information is an audio broadcast. The video output control means is
Only the sound included in the first broadcast information is output to the sound reproduction means, and the first video included in the first broadcast information and the second video included in the second broadcast information are Simultaneous output means for outputting to the video display means;
An output stop means for stopping only the output of the first video on condition that a predetermined operation means is operated when the output is performed by the simultaneous output means;
The television receiver according to claim 1, comprising:   The television receiver according to any one of claims 1 to 3, further comprising audio information display means for displaying a broadcast station that broadcasts broadcast information including audio being output, or information related to the broadcast station. .

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