JP2007243841A - Video output device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video output device capable of displaying an OSD or the like so as not to disturb a viewer by saving a labor for erasing the indication of the OSD or the like and preventing a video part from being hidden even with the indication. <P>SOLUTION: The video output device comprises: a reception means 103 for receiving a television broadcast signal; an acquisition means 107 for acquiring image data of a character string image or image data of a character string image on a storage medium; an OSD image generation means 108 for generating an OSD image; an instruction acceptance means 110; a position determination means 111 for determining a first display position for the character string image and a second display position for the OSD image; a change means 112 for changing a third display position for video or changing a video size so that the third display position of the video image does not overlap at least one of the first and second display positions; a composition means 113 for composing at least one of the character string image and OSD image at the determined display position with the video at the changed third display position or in the changed size; and an output means 114 for outputting the composed video image. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a video output apparatus that performs OSD display and caption display on a monitor such as a television.

  Conventionally, OSD (On Screen Display), subtitles, and the like have been displayed on a monitor or the like superimposed on a video transmitted from a broadcasting station or a video reproduced by a player that reproduces a medium on which video information is recorded. Specific examples are shown in FIGS. FIG. 8 shows an image in the case of OSD display, and FIG. 9 shows an image in the case of subtitle display. In the case of FIG. 8, since the OSD display portion 801 is displayed over the video portion 802, the image of the portion hidden by the OSD display cannot be seen. In the case of FIG. 9, as in the case of FIG. 8, the subtitle display portion 901 is displayed so as to overlap the video portion 902, so that the video hidden in the subtitle display cannot be seen. In particular, subtitles of current terrestrial and BS digital broadcasts cause the viewer to feel disturbed because the subtitle display portion is black.

In such a case, according to the conventional method, when text information such as extraordinary news, time, and weather forecast inserted when the broadcast station transmits a program overlaps the OSD or the like, the display of the OSD or the like is displayed on the viewer each time. Had to be erased with a remote control. In order to save such time and effort, a technique for performing processing so as not to be displayed repeatedly is described in Patent Document 1 below. The technique described in Patent Document 1 performs OSD display so that it does not overlap with text information such as extraordinary news, time, and weather forecast inserted when the broadcast station transmits a program.
JP 2004-297676 A (Summary, paragraph 0006)

  However, the technique described in Patent Document 1 moves the display position of the OSD or the like, and an image exists at the moved position, and there is a portion where the image is hidden. This is because an OSD or the like is displayed over the video, and there is a portion that cannot be seen no matter where the OSD or the like is displayed. Therefore, it has been difficult to always display the OSD or the like so that the viewer does not feel that the display of the OSD or the like is in the way.

  The present invention is for solving the above-mentioned problem, saves the trouble of erasing the display of the OSD, etc., and makes the viewer feel disturbed without hiding the video portion even if the OSD is displayed. It is an object of the present invention to provide a video output device that can display an OSD or the like without using a display.

  In order to achieve the above object, according to the present invention, a receiving means for receiving a television broadcast signal of a channel selected based on channel selection instruction information from the outside, and the received television broadcast signal The image data of the character string image that is added and displayed on the display means is acquired, or stored together with the content data recorded in a predetermined storage medium, and displayed on the display means that is information related to the content of the stored content. An acquisition unit that acquires image data of a character string image to be obtained from the predetermined storage medium; and an OSD that generates an OSD (On Screen Display) image that is displayed on the display unit and is a character string image displayed on the display unit An image generating means; an accepting means for accepting an external instruction and outputting an external instruction signal in response to the instruction; and the acquired image A first display position that is a display position of the character string image by the data on the display means and a second display position that is a display position of the generated OSD image on the display means are supplied from the reception means. A third display position which is a display position in the display means of the position determination means for determining based on the external instruction signal and the video signal included in the television broadcast signal is the first display position and the display position; Change means for changing the third display position from a normal predetermined display position or changing the video size of the video so as not to overlap at least one of the second display positions; At least one of the determined character string image and the OSD image, and the video with the third display position or the video size changed. There is provided a video output device comprising: a synthesizing unit that synthesizes the video; and an output unit that outputs the video composed of the synthesized video and the character string image or the generated OSD image to the display unit. With this configuration, it is possible to save the trouble of erasing the display of the OSD and the like, and to display the OSD and the like without hiding the video portion even when the OSD or the like is displayed and without causing the viewer to feel that it is in the way. Note that the character string image added to the television broadcast signal is not only a subtitle image displayed on the display means to help understand the content of the broadcast program specified by the television broadcast signal, for example, an earthquake, etc. It may be a telop image that displays earthquake information or the like as a telop on the display means in the event of an emergency. The normal predetermined display position refers to a video display position determined so that the user can accurately grasp the video displayed according to the size of the screen of the display means.

  The video output apparatus of the present invention has the above-described configuration, saves the trouble of erasing the display of the OSD, etc., does not hide the video part even if the OSD is displayed, and does not make the viewer feel disturbed. OSD can be displayed on the screen.

  A video output apparatus according to an embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing a configuration of a video output apparatus according to an embodiment of the present invention. FIG. 2 is a diagram showing an example of OSD display in the video output apparatus according to the embodiment of the present invention. FIG. 3 is a diagram showing an example of subtitle display in the video output apparatus according to the embodiment of the present invention. FIG. 4 is a diagram showing an example of OSD display in which only the vertical direction of video is reduced and displayed in the video output device according to the embodiment of the present invention. FIG. 5 is a diagram showing an example of OSD display in which only the horizontal direction of the video is reduced and displayed in the video output device according to the embodiment of the present invention. FIG. 6 is a diagram showing an example of an OSD display in which a video is displayed by moving downward in the video output device according to the embodiment of the present invention. FIG. 7 is a diagram showing an example of an OSD display in which an image is displayed by moving upward in the image output apparatus according to the embodiment of the present invention.

  Hereinafter, a video output apparatus according to an embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1, the video output device includes an antenna 101, a tuner (reception unit) 103, a decoder 104, a video output selector 105, a caption data selector 106, a caption decoder (acquisition unit) 107, an OSD generation unit (OSD image). Generating unit) 108, remote control receiving unit (accepting unit) 110, OSD / subtitle position designation unit (position determining unit) 111, image size changing unit (changing unit) 112, video / OSD combining unit (combining unit) 113, video output Part (output means) 114. Normally, radio waves input via the antenna 101 are received by the tuner 103, passed through the image size changing unit 112 and the video / OSD synthesis unit 113, and sent to the video output unit 114. The video is displayed on an external display device (such as a monitor) that is not a component of the monitor or the video output device (not shown). Specifically, the tuner 103 determines the channel selected based on channel selection instruction information, which is information on a desired channel, input in advance by the user of the video output device via the remote control 109 shown in FIG. Receive television broadcast signals.

  Similarly, when a medium such as the disc 102 on which video information or the like is recorded is reproduced, it is sent from the decoder 104 to the video output unit 114 through the image size changing unit 112 and the video / OSD synthesis unit 113, The image is displayed on a monitor (not shown) of the components of the video output device or an external display device (such as a monitor) that is not a component of the video output device. The user uses the remote control 109 to issue an OSD or subtitle display command, and the remote control receiving unit 110 that receives the display command transmits the command to the OSD / subtitle display position designation unit 111. The subtitle data here is not limited to data such as characters of the characters in the broadcast program or explanatory texts related to the broadcast program, but may be character data such as the above-mentioned extraordinary news, time, and weather forecast. .

  The caption decoder 107 is stored together with caption data included in a broadcast program received via the antenna 101 and content data recorded on a medium (recording medium) such as the disc 102, and information related to the content of the stored content. The image data of the character string image is taken out. Here, the image data of the character string image, which is information related to the content details, refers to subtitle data for grasping the content details when the content is reproduced in a foreign language such as English, for example.

  The OSD generation unit 108 generates information on an OSD image (operation panel image) that is a character string image displayed on a monitor (not shown) and displayed on the monitor. The OSD image information (hereinafter also referred to as OSD information) refers to image information that is used when, for example, the display position or color of a video on a monitor is set. The extracted subtitle data and the created OSD information are sent to the OSD / subtitle position designation unit 111. Based on an instruction from the user via the remote control 109, the OSD / subtitle position specifying unit 111 displays the first display position that is the display position of the acquired caption data on a monitor (not shown) and the generated OSD information (operation A second display position that is a display position on a monitor (not shown) of the panel image) is determined.

  Then, based on the determination of the OSD / subtitle position specifying unit 111, the image size changing unit 112 has a third display position, which is a display position on a monitor (not shown) of a video by a video signal included in the television broadcast signal, The third display position is changed from the normal predetermined display position or the video size of the video is changed so as not to overlap with at least one of the first display position and the second display position. Note that changing the video size means changing the video so that the video is displayed in a display area excluding a display area on a monitor (not shown) on which caption data and OSD information are displayed. In addition, when subtitle data or OSD information is displayed at the bottom of a monitor (not shown), the vertical scale of the video is changed so that the video is displayed in a display area excluding the bottom.

  In this case, the video is displayed as being crushed rather than the normal display, but the scale is changed so as not to hinder viewing. As will be described later, the same applies to the case where caption data or OSD information is displayed on the left or right part of a monitor (not shown). Further, changing the third display position from the normal predetermined display position means changing the position by a predetermined distance in a predetermined direction from the normal display position. For example, as will be described later, when subtitle data or OSD information is displayed at the bottom of a monitor (not shown), the video is moved upward so that the video is displayed in a display area other than the bottom. In this case, since the upper part of the video is shifted by the display area of the caption data and OSD information, the upper part of the video is not visible. However, the video is shifted so as not to obstruct viewing.

  The video / OSD synthesis unit 113 synthesizes at least one of the character string image and the OSD image (OSD information) whose display position is determined and the video whose third display position or video size is changed, The video output unit 114 outputs the video to a monitor (not shown). Note that the OSD / subtitle display position (display range) specified by the OSD / subtitle position specifying unit 111 may be determined based on an instruction from the user, or according to the size or amount of the OSD or subtitle. The display position may be determined in advance regardless of the size or amount of the OSD or caption.

  FIG. 2 shows an example of an OSD display in which an OSD display image according to the present invention is reduced and displayed. In this example, in order to display the OSD display portion 201 on the upper portion of the video portion 202, the video is reduced and displayed. The video is 1280 x 768 in the past, but with the same aspect ratio, it is slightly reduced and displayed (displayed at a size of 1200 x 675). Can be displayed without overlapping. FIG. 3 is an example in which the OSD display portion 201 in FIG. 2 is replaced with a caption display portion 301 and displayed below the video portion 302.

  FIGS. 4 and 5 respectively reduce the vertical or horizontal direction of the video and display the OSD in the empty gap. FIGS. 6 and 7 show that the images are displayed while being shifted downward and to the left, respectively, and the OSD is displayed in the open gap. Subtitle display can be similarly considered by replacing the OSD portion in FIGS. 3 to 7 with subtitles.

  The video output apparatus according to the present invention saves the trouble of erasing the OSD display, does not hide the video portion even if the OSD display is performed, and displays the OSD etc. without making the viewer feel disturbed. Therefore, it is useful for a video output device that performs OSD display and subtitle display on a monitor such as a television.

It is a block diagram which shows the structure of the video output device which concerns on embodiment of this invention. It is a figure which shows an example of the OSD display in the video output device which concerns on embodiment of this invention. It is a figure which shows an example of the caption display in the video output device concerning an embodiment of the invention. It is a figure which shows an example of the OSD display which reduced and displayed only the vertical direction of the image | video in the video output device which concerns on embodiment of this invention. It is a figure which shows an example of the OSD display which reduced and displayed only the horizontal direction of the image | video in the video output device which concerns on embodiment of this invention. It is a figure which shows an example of the OSD display which moved and displayed the image | video in the video output device which concerns on embodiment of this invention. It is a figure which shows an example of the OSD display which moved and displayed the image | video in the video output device which concerns on embodiment of this invention. It is a figure which shows an example of the conventional OSD display. It is a figure which shows an example of the conventional caption display.

Explanation of symbols

101 Antenna 102 Disc 103 Tuner (Receiving means)
104 Decoder 105 Video Output Selector 106 Subtitle Data Selector 107 Subtitle Decoder (Acquisition Unit)
108 OSD generator (OSD image generator)
109 Remote control 110 Remote control receiving part (accepting means)
111 OSD / caption position designation part (position determination means)
112 Image size changing unit (changing means)
113 Video / OSD composition unit (composition means)
114 Video output unit (output means)
201, 801 OSD display part 202, 302, 802, 902 Video part 301, 901 Subtitle display part

Claims (1)

Receiving means for receiving a television broadcast signal of a channel selected based on channel selection instruction information from outside;
Acquires image data of a character string image that is added to the received television broadcast signal and displayed on the display means, or is stored together with content data recorded in a predetermined storage medium, and relates to the content of the stored content Acquisition means for acquiring, from the predetermined storage medium, image data of a character string image to be displayed on the display means, which is information obtained
OSD image generation means for generating an OSD image that is displayed on the display means and is a character string image displayed on the display means;
Receiving means for receiving an instruction from the outside and outputting an external instruction signal according to the instruction;
A first display position, which is a display position of the character string image based on the acquired image data, on the display means and a second display position, which is a display position of the generated OSD image, on the display means. Position determining means for determining based on the external instruction signal supplied from
A third display position, which is a display position on the display means of a video signal based on a video signal included in the television broadcast signal, overlaps at least one of the first display position and the second display position. Change means for changing the third display position from the normal predetermined display position, or changing the video size of the video,
Synthesizing means for synthesizing at least one of the character string image and the OSD image whose display position is determined, and the video whose third display position or the video size has been changed;
An output means for outputting a video composed of the synthesized video and the character string image or the generated OSD image to the display means;
Provided video output device.

Images