JP2009232212A - Broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a broadcast receiver in which a video image of a desired video signal selected by a user is presented in an easy-to-view format. <P>SOLUTION: In a multiple screen display state where the images of video signals of different broadcasts outputted by a receiving means, which receives a plurality of different broadcasts and outputs respective video signals and audio signals, are being displayed on a main screen and sub screens provided within a display area of the relevant main screen, respectively, when a sub-screen is designated by a designation means for designating either the main screen or any one among the sub screens, a broadcast receiver controls for switching video image being displayed on the relevant sub screen to the main screen and to display the video image. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a broadcast receiving apparatus capable of receiving a broadcast program, and in particular, a display screen for simultaneously receiving programs of different image quality broadcasts (for example, 1-segment broadcast and 12-segment broadcast). The present invention relates to a broadcast receiving apparatus that is displayed above.

  In recent years, the performance of navigation systems has improved dramatically, and the number of functions has been increasing. In particular, in addition to the route search function that automatically searches for a guidance route that connects the starting point and destination with the optimum route and displays it on a display device such as an LCD, it receives terrestrial digital broadcasts that have become popular in recent years. In addition, navigation systems having a television broadcast receiving function for displaying using a display device such as an LCD are also widely used.

  In digital terrestrial broadcasting, one channel is divided into 13 segments (hierarchies), and data such as video and audio can be transmitted using one or a plurality of segments. Can be distinguished by. For example, high-definition high-definition broadcasting requires 12 segments at the same time, so it is generally called 12-segment broadcasting (12-segment broadcasting). Also, low-quality broadcasts for mobiles (broadcasts for mobile phones and car navigation systems) can be transmitted in only one segment, so they are generally called one-segment broadcasts (one-segment broadcasts).

  One-segment broadcasting is an H.264 video coding technology. By adopting H.264 / MPEG-4 AVC, high-stability data broadcasting is achieved with a small amount of data. Note that by using all 13 segments in one channel, the same content can be broadcast simultaneously in 12-segment broadcasting and 1-segment broadcasting.

  By the way, for example, in a broadcast receiver mounted on an in-vehicle navigation device, it is preferable to receive one-segment broadcasting because there are many broadcast receptions while moving, but one-segment broadcasting is better in image quality than 12-segment broadcasting. For example, it may be preferable to receive a 12-segment broadcast depending on the user's situation such as when the vehicle is stopped in a parking area. For this reason, various broadcast receiving apparatuses that can automatically and appropriately switch between 12-segment broadcasting and one-segment broadcasting according to the situation on the broadcast receiving apparatus side have been proposed.

  For example, in the following Patent Document 1 (Japanese Patent Laid-Open No. 2007-251480), when a user is operating a data broadcast, even if the reception status of radio waves changes, an automatic operation between a 1-segment broadcast and a 12-segment broadcast is performed. A technique is disclosed that can continue the operation of data broadcasting without switching. Thus, both operability and convenience are achieved by automatically switching between 1-segment broadcasting and 12-segment broadcasting so as not to hinder the user's screen operation and channel selection operation. Further, the technique disclosed in Patent Document 1 is configured not to switch between 1-segment broadcasting and 12-segment broadcasting even when the reception status changes when simultaneous broadcasting is not performed.

  Also, in the following Patent Document 2 (Japanese Patent Laid-Open No. 2007-212298), a technique for selecting and outputting one data from a plurality of received data having different qualities based on the movement status of the moving body. Is disclosed. Thereby, according to the driving | running state of a vehicle, since the image | video etc. of the quality in which the degree of danger was considered are output when a user gazes a screen etc., a user's safety | security can be ensured.

Also, in the following Patent Document 3 (Japanese Patent Laid-Open No. 2007-74092), two tuners of 12 segment tuner and 1 segment tuner are used at the same time, and both 12 segment broadcast and 1 segment broadcast are simultaneously and selectively used. A technique for viewing on a plurality of display devices is disclosed. As a result, in addition to digital broadcast images, various images such as car navigation system images, DVD images, analog broadcast images, and the like can be displayed on a plurality of display devices such as a front seat display device and a rear seat display device of a passenger car. Can be selectively displayed.
JP 2007-251480 A (paragraphs [0019] to [0023]) JP 2007-212298 A (paragraph [0009], paragraph [0041]) JP 2007-74092 A (paragraphs [0044] to [0047])

  However, in the broadcast receiving devices of Patent Document 1 and Patent Document 2 described above, either one of the received 1-segment broadcast or 12-segment broadcast is selected and displayed, but both broadcasts are simultaneously displayed on the same screen. Therefore, the program desired by the user cannot be easily obtained.

  Further, in the broadcast receiving apparatus of Patent Document 3 described above, both 1-segment broadcast and 12-segment broadcast can be displayed simultaneously on two screens, but this two-screen display can only be controlled according to the reception state, and the user It was not possible to control the desired broadcast to be displayed in an easy-to-view format by a simple operation.

  The inventor of the present application has conducted various studies to solve the above-mentioned problems, and as a result, when the video signals of different image quality are simultaneously received and displayed on a plurality of screens, the video signal selected by the user is displayed. The present invention has been completed by conceiving that the above problem can be solved if the display is controlled so as to display on a screen having a large area.

  That is, an object of the present invention is to provide a broadcast receiving apparatus that solves the above-described problems and presents a desired video signal selected by a user in an easy-to-view format. is there.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is
In a broadcast receiving apparatus that receives a broadcast including a video signal and an audio signal from a broadcast station,
Receiving means for receiving a plurality of different broadcasts and outputting a video signal and an audio signal, respectively (for example, corresponding to the broadcast receiving means 12 in the following embodiment);
Display means having a main screen for displaying the image of the video signal output by the receiving means and a sub-screen provided in the display area of the main screen (for example, in the following embodiment, corresponds to the display means 13). )When,
A designation means for designating either the main screen or the sub-screen (for example, corresponding to the input means 14 in the following embodiment);
Of the different video signals output from the receiving means, the video of one video signal is displayed on the main screen and the video of the other video signal is displayed on the sub-screen. Display control means (for example, corresponding to the display control means 15 in the following embodiment) for controlling the video displayed on the sub-screen to be displayed by switching to the main screen when the screen is designated;
It is provided with.

  The invention according to claim 2 of the present application is the broadcast receiving apparatus according to claim 1, wherein the video of one video signal among the different video signals output from the receiving means is displayed on the main screen, and the other In the multi-screen display state in which the video of the video signal is displayed on the sub-screen, when the sub-screen is designated by the designation means, the display control means converts the video displayed on the main screen to the sub-screen. It is characterized by controlling to switch and display.

  According to a third aspect of the present invention, in the broadcast receiving apparatus according to the first or second aspect, the video of one video signal among the different video signals output from the receiving means is displayed on the main screen. In the multi-screen display state in which the video of the other video signal is displayed on the sub-screen, the display control means interrupts the display of the video on the sub-screen when the main screen is designated by the designation means It is characterized by controlling as follows.

  According to a fourth aspect of the present invention, in the broadcast receiving apparatus according to any one of the first to third aspects, the specifying unit includes a touch panel that covers the main screen and the sub-screen of the display unit. A screen corresponding to a position touched or pressed on the touch panel is designated.

  The invention according to claim 5 of the present application is the broadcast receiving device according to any one of claims 1 to 4, wherein the plurality of different video signals are video signals having different image quality, In the multi-screen display state, the display control means displays a high-quality video signal video on the main screen and a low-quality video signal video on the sub-screen among the plurality of different video signals. It controls to do.

  In the invention according to claim 1, the broadcast receiving apparatus receives the video of one video signal among the video signals output from the receiving unit that receives a plurality of different broadcasts and outputs the video signal and the audio signal, respectively. When a sub-screen is designated by a designation means for designating either the main screen or the sub-screen in a multi-screen display state in which the video of the other video signal is displayed on the sub-screen, the main screen is displayed. Controls the video displayed on the sub screen to be switched to the main screen for display.

  According to such a configuration, it is possible to easily select a video of a video signal desired by the user when simultaneously receiving video signals of different image quality and displaying them on the same screen. For this reason, since the video of the video signal selected by the user can be displayed on a screen having a large display area, convenience for the user is improved.

  Further, in the invention according to claim 2, in the broadcast receiving device according to claim 1, among the different video signals output from the receiving means, the video of one video signal is displayed on the main screen, In the multi-screen display state in which the video of the other video signal is displayed on the sub-screen, the display control means displays the video displayed on the main screen when the sub-screen is designated by the designation means. The display is controlled to be switched to.

  According to such a configuration, it is possible to simultaneously receive video signals of different image quality and display them on the same screen, and it is possible to easily select a video of a desired video signal at any time. Convenience for the user is improved.

  According to a third aspect of the present invention, in the broadcast receiving apparatus according to the first or second aspect, the video of one video signal among the different video signals output from the receiving means is displayed on the main screen. In the multi-screen display state in which the video of the other video signal is displayed on the sub screen, the display control means interrupts the display of the video on the sub screen when the main screen is designated by the designation means. Control to do.

  According to such a configuration, it is possible to easily switch the video of the video signal selected by the user to a screen with a large display area from a state where a plurality of video signals of different image quality are simultaneously received and displayed on the same screen. Therefore, convenience for the user is improved.

  According to a fourth aspect of the present invention, in the broadcast receiving device according to any one of the first to third aspects, the designation means includes a touch panel that covers the main screen and the sub-screen in the display means. A screen corresponding to a position touched or pressed on the touch panel is designated.

  According to such a configuration, it is possible to easily select a video of a video signal desired by the user when simultaneously receiving video signals of different image quality and displaying them on the same screen. For this reason, since the video of the video signal selected by the user can be displayed on a screen having a large display area, convenience for the user is improved.

  Also, in the invention according to claim 5, in the broadcast receiving apparatus according to any one of claims 1 to 4, the plurality of different video signals are video signals having different image quality, and the plurality of screens. In the display state, the display control means displays a video of a high-quality video signal on the main screen and a video of a low-quality video signal on the sub-screen among the plurality of different video signals. To control.

  According to such a configuration, when video signals with different image quality are simultaneously received and displayed on the same screen, a video with a high image quality is displayed in advance on a screen with a large display area, and a low image quality is displayed. Since the image of the video signal is displayed on a screen having a small display area, convenience for the user is improved.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings. However, the embodiments described below exemplify a broadcast receiving apparatus for embodying the technical idea of the present invention, and are not intended to identify the present invention as this broadcast receiving apparatus. The present invention is equally applicable to broadcast receiving apparatuses of other embodiments included in the claims.

  FIG. 1 is a block diagram showing a configuration of a broadcast receiving apparatus according to an embodiment of the present invention.

  The broadcast receiving apparatus includes a control unit 11, a broadcast receiving unit 12, a display unit 13, an input unit 14, a display control unit 15, an image comparison unit 16, and the like.

  The broadcast receiving means 12 corresponds to the receiving means of the present invention, the display means 13 corresponds to the displaying means of the present invention, the input means 14 corresponds to the specifying means of the present invention, and the display control means 15 corresponds to the present invention. It corresponds to display control means.

  This embodiment shows an in-vehicle broadcast receiving apparatus, but a portable broadcast receiving apparatus such as a mobile phone or a portable game machine having a broadcast receiving function, or a fixed broadcast receiving apparatus installed indoors. It may be a device.

  The control means 11 is mainly composed of a microprocessor, and includes memories such as a ROM 11a and a RAM 11b as in a general computer device. The ROM 11a stores a program for controlling the operation of each unit, and the RAM 11b stores information necessary for the operation of the control means 11.

  The broadcast receiving means 12 is a digital tuner capable of receiving a terrestrial digital broadcast transmitted from a broadcasting station, and includes a 1-segment tuner 12a that receives a 1-segment one-segment broadcast and a 12-segment terrestrial digital television broadcast (a 12-segment broadcast). ) To receive a 12-segment tuner 12b.

  Since each tuner can receive terrestrial digital broadcasting via the respective antenna, the broadcast receiving apparatus of the present embodiment uses one-segment broadcasting received using the 1-segment tuner 12a and 12-segment tuner 12b. There is a simultaneous reception mode for simultaneously receiving the received 12-segment broadcast and a mode for receiving only one-segment broadcast or 12-segment broadcast, and performing broadcast reception operation in any mode Is possible. Digital television signals (video signal and audio signal) of terrestrial digital broadcast received by each antenna are output from the broadcast receiving means 12 and input to the control means 11.

  The display means 13 is an apparatus for processing and displaying the video data generated from the video signal included in the digital television signal by the control means 11, and is composed of a display device such as an LCD (Liquid Crystal Display) or an organic ELD, for example. Is done. As shown in FIG. 3, the display screen of the display means 13 includes a main screen (main display screen) 131 having a large area and a sub-screen (sub display screen) 132 having a small area provided in the display area of the main screen. It consists of

  Further, various data broadcasts and electronic program guides are displayed on the display means 13. The audio data generated from the audio signal included in the digital television signal by the control unit 11 is processed and output by an audio output unit (not shown).

  The input means 14 is an input interface for instructing the broadcast receiving apparatus to turn on / off the apparatus, select a program to be watched by the user, select a broadcast station, and the like. It is comprised by the touch-panel type button icon etc. which were displayed on. The touch panel is provided on the display surface of the display unit 13, generates a position detection signal by detecting pressure or contact of a finger or the like at an arbitrary position on the display surface, and controls display of the position detection signal via the control unit 11. An operation control signal is output to the means 15.

  As will be described later, the user can easily select the video of the desired video signal by touching the main screen display area or the sub-screen display area where the video signal video is displayed on the display screen. is there. The user can view a program of a desired broadcast station by touching a button icon displayed on the display screen.

  The display control means 15 controls the display means 13 to display it in the area of the main screen 131 or the sub screen 132 when the control means 11 displays the video data generated from the video signal included in the digital television signal. .

  FIG. 3 is a schematic diagram for explaining the transition of the screen displayed on the display unit 13. Specifically, FIG. 3A shows an example in which video data of 12-segment broadcasting is displayed in the area of the main screen 131, and video data of 1-segment broadcasting (1 segment) is displayed in the area of the sub-screen 132. 3B shows an example in which the video data of one-segment broadcasting is displayed in the area of the main screen 131 and the video data of 12-segment broadcasting is displayed in the area of the sub-screen 132, and FIG. Shows an example in which only 12-segment broadcast video data is displayed in either the 12-segment broadcast or the one-segment broadcast in the area of the main screen 131.

  That is, in the reception mode in which only one of the one-segment broadcasting or the 12-segment broadcasting is received by the broadcast receiving unit 12, the display control unit 15 displays the received broadcast video signal in the area of the main screen 131. (For example, FIG. 3C).

  In the case of the simultaneous reception mode in which the broadcast receiving means 12 receives the one-segment broadcast and the 12-segment broadcast at the same time, the video signal of one of the received broadcasts is displayed in the area of the main screen 131. The other broadcast video signal is controlled to be displayed in the area of the sub-screen 132. In this case, when each video signal is displayed for the first time, as shown in FIG. 3A, a 12-segment broadcast video signal with high image quality is displayed in the area of the main screen 131, and a one-segment video with low image quality is displayed. It is more desirable to display the broadcast video signal on the sub-screen 132.

  Further, the display control means 15 responds to the operation control signal output from the input means 14 when the user touches the display area of the main screen 131 or the display area of the sub screen 132 by the user. The display of the video signal for the area is controlled. That is, when the display area of the main screen 131 is touched by the user, the display control means 15 interrupts the display of the video signal displayed in the area of the sub-screen 132 in accordance with the operation control signal based thereon. Control is performed so that only the video signal displayed in the area of the main screen 131 is displayed (for example, FIG. 3C).

  On the other hand, when the display area of the sub screen 131 is touched by the user, the display control means 15 switches the video signal displayed in the area of the sub screen 132 to the area of the main screen 131 according to the operation control signal based thereon. Control to display. In this case, it is more desirable to control so that the video signal displayed in the area of the main screen 131 before switching display is switched to the area of the sub screen 132, but it is switched to the area of the sub screen 132 and displayed. The display of the video signal displayed in the area of the main screen 131 may be interrupted without doing so.

  For example, when a 12-segment broadcast video signal is displayed in the main screen 131 area and a one-segment broadcast video signal is displayed in the sub-screen 132 area, as shown in FIG. When the area is touched, the display control means 15 displays the one-segment broadcast video signal in the area of the main screen 131 and the 12-segment broadcast video signal in the area of the sub-screen 132 as shown in FIG. Control so that is displayed.

  Next, the display control operation of the broadcast receiving apparatus according to the present invention will be described.

  FIG. 2 is a flowchart illustrating the operation of the broadcast receiving apparatus according to the present embodiment.

  Note that the operation shown in FIG. 2 is realized by executing a control program stored in the ROM 11 a provided in the control means 11.

  First, in the process of step S21, the control means 11 determines whether or not the broadcast receiving means 12 is in a mode for simultaneously receiving 12-segment broadcasting and one-segment broadcasting. On the other hand, if not in the simultaneous reception mode, the digital television broadcast video signal received by the broadcast receiving means 12 is displayed on the main screen 131 of the display means 13 and the processing is terminated.

  Then, in the process of step S22, as shown in FIG. 3A, the video signal of the 12-segment broadcast received using the 12-segment tuner 12b is displayed on the main screen of the display means 13 under the control of the display control means 15. The one-segment broadcast video signal received using the 1-segment tuner 12 a is displayed on the sub-screen 132 of the display means 13.

  Next, in the process of step S23, it is determined whether or not the user has performed a touch operation on the display screen of the display unit 13 as an input operation to the input unit 14, and if there is a touch operation on the display screen, step S24 is performed. On the other hand, if there is no touch operation on the display screen, the process proceeds to step S25.

  In the process of step S24, when the user performs a touch operation on the sub screen 132 of the display unit 13 as an input operation to the input unit 14, the main screen 131 is displayed as shown in FIG. The displayed 12-segment broadcast video signal is displayed small on the sub-screen 132, and the one-segment broadcast video signal displayed on the sub-screen 132 is displayed large on the main screen 131, and the process proceeds to step S25. When the user performs a touch operation on the main screen 131 of the display unit 13 as an input operation to the input unit 14, the process proceeds to step S25 with the display screen shown in FIG.

  In the process of step S25, it is determined whether or not the broadcast viewing end button is selected from the touch panel type button icon of the input means 14 by the user. If the end button is selected, the digital broadcast viewing is stopped and the process is performed. On the other hand, if the end button is not selected, the process returns to step S23.

  As described above, according to the broadcast receiving apparatus of the present invention, when simultaneously receiving video signals of different image quality and displaying them on the same screen, each video signal is stored in the main screen and the display area of the main screen. Therefore, it is possible to easily select the video of the video signal desired by the user. For this reason, since the video of the video signal selected by the user can be displayed on a screen having a large display area, convenience for the user is improved.

  In the above-described embodiment, the description has been given by taking, as an example, a simulcast in which the same broadcast program is a one-segment broadcast and a 12-segment broadcast as a plurality of broadcasts with different image qualities. The present invention can be similarly applied to a broadcast receiving apparatus that receives one-segment broadcasting and 12-segment broadcasting. In the above-described embodiment, one-segment broadcasting and 12-segment broadcasting have been described as an example of a plurality of broadcasts having different image quality. However, the present invention is not limited to this, and a plurality of broadcasts having different image quality and other quality may be used. The invention is equally applicable.

It is a block diagram which shows the structure of the broadcast receiving apparatus concerning the Example of this invention. It is a flowchart which shows the display control operation | movement of the broadcast receiving apparatus concerning the Example of this invention. It is a schematic diagram for demonstrating the transition of the screen displayed on the display means concerning the Example of this invention.

Explanation of symbols

11 .... Control means 11a ... ROM
11b ... RAM
12. Broadcast receiving means 12a ... 1 segment tuner 12b ... 12 segment tuner 13 ... Display means 14 ... Input means 15 ... Display control means

Claims (5)

In a broadcast receiving apparatus that receives a broadcast including a video signal and an audio signal from a broadcast station,
Receiving means for receiving a plurality of different broadcasts and outputting respective video and audio signals;
Display means having a main screen for displaying the video of the video signal output from the receiving means and a sub-screen provided in a display area of the main screen;
A designation means for designating either the main screen or the sub-screen;
Of the different video signals output from the receiving means, the video of one video signal is displayed on the main screen and the video of the other video signal is displayed on the sub-screen. Display control means for controlling the video displayed on the sub-screen to be switched to the main screen and displayed when the screen is designated;
A broadcast receiving apparatus comprising:   Among the different video signals output from the receiving means, in the multi-screen display state in which the video of one video signal is displayed on the main screen and the video of the other video signal is displayed on the sub-screen, the display control means is 2. The broadcast receiving apparatus according to claim 1, wherein, when a sub-screen is designated by the designation means, the video displayed on the main screen is controlled to be switched to the sub-screen and displayed. .   Among the different video signals output from the receiving means, in the multi-screen display state in which the video of one video signal is displayed on the main screen and the video of the other video signal is displayed on the sub-screen, the display control means is 3. The broadcast receiving apparatus according to claim 1, wherein when the main screen is designated by the designation unit, control is performed such that display of the video on the sub-screen is interrupted.   The said designation | designated means is equipped with the touchscreen which covers the main screen and subscreen in the said display means, The screen corresponding to the position where the said touchscreen was touched or pressed is specified, The Claim 1 thru | or 3 characterized by the above-mentioned. The broadcast receiving apparatus according to claim 1.   The plurality of different video signals are video signals having different image qualities, and in the multi-screen display state, the display control means includes a high-quality video signal on the main screen among the plurality of different video signals. 5. The broadcast receiving apparatus according to claim 1, wherein a video is displayed, and control is performed so that a video of a low-quality video signal is displayed on the sub-screen.

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