JP2009118166A - Television receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a television receiver capable of superposing captions without losing a drawing portion in an originally effective region by displaying the captions on left and right invalid regions of a panel. <P>SOLUTION: The television receiver receives the operation of a user, namely a viewer, selects broadcast programs 103, 104, and superimposes 108 caption data on image data at a position designated by caption position data to display an image having captions on a display section 21, when the selected broadcast program has the image, caption image, and caption position data. In display by providing a marginal portion occurring from the difference between the aspect ratio of the display section 21 and that of the image of a broadcast program to be displayed, the caption position data that the broadcast program has is detected, and the caption is changed for display at the marginal portion. The operation of the user is received to display the caption at the marginal portion. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a television receiver, and in particular, when an SD signal having an aspect ratio (horizontal / vertical ratio) of 4: 3 is output to a 16: 9 panel, an extra area that is not drawn is generated. The present invention relates to a technology that provides value-added services by effectively utilizing the domain.

  A TV program may broadcast 4: 3 content suitable for display on a conventional television receiver, but when this content is displayed on a 16: 9 panel which has been popular in recent years, the vertical and horizontal sizes are limited. As shown in FIG. 2, it is proposed to perform various displays without matching (see Patent Document 1). For example, if the aspect ratio is maintained (normal), non-displayed parts (margins) are formed on both sides of the screen. When displayed in accordance with the width (cinema), the image is cut off at the top and bottom. Change the aspect to an uncomfortable level and display it on a 16: 9 panel (smart zoom), or enlarge the image compressed horizontally to display the full screen (full), reducing the number of non-displayed parts Has also been done. It is also possible to display the image as the input signal (underscan).

In some television programs, captions (also called telops, supermarkets, etc.) are displayed in images. This is because a television station creates and broadcasts a broadcast program having image data, caption image data, and caption position data, and the television receiver sets caption data at a position specified by the caption position data of the received broadcast program. Is superimposed on the image data to display an image with subtitles. However, when the subtitles and images are similar in color, there is a problem that the subtitles are difficult to see.
JP 2005-295338 A

  The present invention solves the conventional problem, and by displaying captions in invalid area portions on the left and right sides of the panel, a television image can be superimposed without losing the original rendering area of the effective area. The purpose is to provide a machine.

  The present invention receives a user's viewing operation, selects a broadcast program, and when the selected broadcast program has image data, subtitle image data, and subtitle position data, the subtitle position data specifies In a television receiver that superimposes the caption data on the image data and displays an image with captions on a display unit, a margin part resulting from a difference between an aspect ratio of the display unit and an aspect ratio of a broadcast program image to be displayed Is a television receiver that detects subtitle position data included in the broadcast program and displays the subtitles in the margins.

  In addition, the present invention is a television receiver that displays the subtitles in the margins in response to the user's operation.

  According to the present invention, it is possible to superimpose captions without losing the original rendering portion of the effective area by displaying the captions in the invalid area portions on the left and right sides of the panel. Then, by clearly dividing the subtitle and the moving image portion, it is possible to obtain a television receiver that looks good and is easy to process in terms of signal processing.

The best mode for carrying out the present invention will be described.
Embodiments of a television receiver according to the present invention will be described with reference to the drawings.

  Examples will be described. FIG. 1 is a diagram showing a system configuration of the television receiver of this embodiment. In FIG. 1, the television receiver can receive an instruction by a user operation from a remote control transmitter (hereinafter “remote control transmitter”) 23. The television receiver includes a terrestrial analog broadcast receiving antenna 101, a terrestrial digital broadcast receiving antenna 102, a liquid crystal display device 21, and a speaker 22.

  The analog tuner unit 103 receives an analog broadcast wave received by the terrestrial analog broadcast receiving antenna 101. The digital tuner unit 104 receives digital broadcast radio waves received by the terrestrial digital broadcast receiving antenna 102.

  The analog tuner unit 103 is connected to the video selector unit 109 and the audio selector unit 113 via the AV switch unit 105. As a result, the analog signal is separated into a video signal and an audio signal by the AV switch unit 105, the video signal is sent to the video selector unit 109, and the audio signal is sent to the audio selector unit 113.

  The digital tuner unit 104 is connected to a video decoding / capturing unit 108, an EPG / OSD / reservation processing unit 110, and an audio decoding unit 111 via a digital demodulating unit 106 and a demultiplexing unit (DMUX, demultiplexer) 107. The digital signal from the digital tuner unit 104 is demodulated by the digital demodulation unit 106 and then separated into a video signal and an audio signal by the separation unit 107. The video signal is sent to the video decoding / capture unit 108 and the EPG (electronic program guide) / OSD / reservation processing unit 11, and the audio signal is sent to the audio decoding unit 111.

  The video signal processed by the video decode / capture unit 108 is sent to the video output conversion unit 112 via the video selector unit 109.

  An EPG (electronic program guide) / OSD / reservation processing unit 110 performs processing of an electronic program guide, processing of a preference registration screen (such as creation of a user's favorite screen), reservation processing, and the like. Also, from the broadcast program image data, subtitle image data, and subtitle position data, a subtitle data is superimposed on the image data at a position specified by the subtitle position data to create a video signal that becomes an image with subtitles.

  The video signal from the EPG (electronic program guide) / OSD / reservation processing unit 110 is sent together with the video signal from the video selector unit 109 to the video output conversion unit 112.

  The audio signal decoded by the audio decoding unit 111 is sent to the audio selector unit 113.

  Based on the video signal, the video output conversion unit 112 displays video on the liquid crystal display panel 28 in the case of analog broadcasting, and displays video and an electronic program guide in the case of digital broadcasting. The audio output conversion unit 114 causes the speaker 15 to output sound based on the audio signal.

  The television receiver also includes a channel selection unit 115, a RAM (random access memory) 116, a CPU (central processing unit) 117, a video mouse microcomputer 119, a nonvolatile memory 120, a communication control unit 121, and a remote control light receiving unit 122.

  Tuning unit 115, RAM (random access memory) 116, CPU (central processing unit) 117, video mouse microcomputer 119, nonvolatile memory 120, communication control unit 121, remote control light receiving unit 122, video decoding / capturing unit 108, EPG The / OSD / reservation processing unit 110 and the audio decoding unit 111 are connected by a bus.

  The channel selection unit 115 is connected to the analog tuner unit 103 and the digital tuner unit 104. The CPU 117 gives a command to each element through the bus and instructs data exchange. When the user presses the channel selection button or the like of the remote control transmitter 23 and there is a channel selection command from the light emitting unit 12 of the remote control transmitter to the remote control light receiving unit 122 side, the CPU 117 gives a command to the channel selection unit 115, and the channel selection unit 115 Each tuner unit 103, 104 selects a broadcast station.

  The RAM 116 stores software for executing a television operating help procedure. The video mouse microcomputer 119 gives an instruction to the video mouse 118.

  The nonvolatile memory 120 stores information necessary for the operation of the television receiver. This information is read through the bus as required by a command from the CPU 117.

  The communication control unit 121 is connected to an external telephone line and a LAN (local area network).

  The remote control light receiving unit 122 receives light generated from the light emitting unit of the remote control transmitter 23. The remote control transmitter 23 has a plurality of operation parts for the user to perform various operations on the television receiver.

  The user can operate the remote control transmitter 23 to output a 4: 3 SD size signal to the 16: 9 panel, and at that time, subtitles appear in the margins generated at both ends. Can be instructed to be displayed.

  When receiving an instruction from the user to display the caption in the margin, the EPG / OSD / reservation processing unit 110 of the television receiver detects the caption position data of the received broadcast program, and the caption position data is designated. Instead of the position of the subtitle, the subtitle corresponding to the subtitle data is displayed in the margins generated at both ends.

  When the 4: 3 SD size signal is output to the 16: 9 panel, the television receiver of this embodiment selects normal or smart zoom from the “screen size” which is the scaler setting. Thus, there are invalid areas that are not drawn on both the left and right sides of the screen, but the television receiver of this embodiment converts the subtitles that are originally superimposed horizontally into the invalid area portion, for example, at the bottom of the screen vertically. To display. Information such as data broadcasting can also be displayed. And if there are undisplayed parts on both sides of the screen, the subtitles accompanying the broadcast or other data broadcasting contents are displayed in those parts, so that the area that was only black until now is used effectively It is possible to provide value-added services.

1 is an explanatory diagram of a system configuration of a television receiver according to an embodiment. FIG. Explanatory drawing of the relationship between the screen size displayed on a television receiver, and an input signal.

Explanation of symbols

DESCRIPTION OF SYMBOLS 103 Analog tuner part 104 Digital tuner part 110 EPG / OSD / reservation processing part 21 Liquid crystal display device 22 Speaker 23 Remote control transmitter

Claims (2)

In response to an operation of the user to view, select a broadcast program, and when the selected broadcast program has image data, caption image data, and caption position data, the caption data is placed at a position specified by the caption position data. In a television receiver that displays an image with subtitles superimposed on the image data on a display unit,
When providing and displaying a margin part resulting from a difference between the aspect ratio of the display unit and the aspect ratio of the image of the broadcast program to be displayed, subtitle position data included in the broadcast program is detected, and subtitles are included in the margin part. A television receiver characterized by being changed and displayed.   The television receiver according to claim 1, wherein the subtitle is displayed in the margin portion in response to an operation of the user.

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