JP2008098959A - Reproducing apparatus and broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a user to sufficiently confirm the display contents of characters and to improve the effect of language learning. <P>SOLUTION: A frame and an audio frame read by a DVD driver 7 and text data generated on the basis of the audio frame by a voice recognition part 13 are stored in a RAM 16. An MPEG decoder 9 combines display image signals generated by an OSD part 8 on the basis of the text data corresponding to the first prescribed number of audio frames and the respective frames for which the second prescribed number of frames are expanded, successively outputs respective composite signals to a video encoder 11, expands the audio frames and outputs them to an audio D/A converter 12. The second prescribed number can be changed by a remote control operation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a playback device and a broadcast receiving device.

  Some conventional DVD recorders and hard disk recorders have a function of displaying characters in a language based on audio information in a certain language recorded in a recording medium or audio information in a certain language included in a broadcast signal. is there. For example, when a movie with French sound recorded on a recording medium is played back or when a broadcast of a movie with French sound is received, French characters are displayed corresponding to the French sound. Thereby, the user can perform language learning.

As a related to the present invention, Patent Document 1 discloses a playback device that generates text data based on audio information recorded on a disc, translates the text data into a specified language, and displays the screen. ing.
JP 2004-112722 A

  However, in the above conventional DVD recorder, hard disk recorder, etc., the display time of the character is fixed, so that the next character display may occur without fully confirming the display content of the character depending on the user. There was a problem that the effect of.

  In view of the above problems, an object of the present invention is to provide a playback device and a broadcast receiving device that allow a user to sufficiently check the display content of characters and enhance the language learning effect.

In order to achieve the above object, a playback apparatus of the present invention is a playback apparatus for playing back video information and audio information recorded on a recording medium.
During reproduction of video information and audio information recorded on the recording medium, characters corresponding to audio information for a predetermined time recorded on the recording medium are combined with the video for a predetermined display time and displayed on the display means. And the predetermined display time can be changed by operating means.

  According to such a configuration, during playback of the recording medium, it is possible to display characters corresponding to a predetermined amount of time for a user's desired time, and the user can sufficiently check the display content of the characters. The effect of learning can be enhanced.

More specifically, for example, means for reading a frame and an audio frame from a recording medium;
Means for generating text data based on audio frames;
Means for generating a display image signal based on text data corresponding to a first predetermined number of audio frames;
Means for synthesizing the display image signal and each frame obtained by expanding a second predetermined number of frames to generate a display signal;
Generating a sound generation signal based on the audio frame,
The second predetermined number may be configured to be changeable by the operating means.

In order to achieve the above object, the broadcast receiving apparatus of the present invention displays video on the display means based on the video information included in the broadcast signal, and emits sound to the sound generation means based on the audio information included in the broadcast signal. In the broadcast receiving device to be
When the video is displayed on the display means based on the video information included in the broadcast signal, and the voice generation means is uttered based on the audio information included in the broadcast signal, a predetermined amount of time included in the broadcast signal is displayed. Characters corresponding to audio information are combined with a video for a predetermined display time and displayed on the display means, and the predetermined display time can be changed by an operation means.

  According to such a configuration, it is possible to display characters corresponding to a predetermined amount of time during broadcast viewing, so that the user can check the display content of the characters sufficiently, and language learning can be performed. Can enhance the effect.

More specifically, for example, means for generating a frame and an audio frame based on a broadcast signal;
Means for generating text data based on audio frames;
Means for generating a display image signal based on text data corresponding to a first predetermined number of audio frames;
Means for synthesizing the display image signal and each frame obtained by expanding a second predetermined number of frames to generate a display signal;
Generating a sound generation signal based on the audio frame,
The second predetermined number may be configured to be changeable by the operating means.

  According to the reproducing apparatus and the broadcast receiving apparatus of the present invention, the user can sufficiently confirm the display content of the characters, and the effect of language learning can be enhanced.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. FIG. 1 shows a block diagram of a DVD recorder according to the present invention. Note that the present invention is not limited to a DVD recorder but can be applied to a hard disk recorder, a VTR, and the like.

  The antenna 1 converts a broadcast radio signal into a high-frequency broadcast signal. The tuner 2 selects a broadcast signal having a specified frequency from the broadcast signal input from the antenna 1 and extracts a composite signal and an analog audio signal. The video decoder 3 converts the composite signal extracted by the tuner 2 into a digital video signal and sends it to the MPEG encoder 5. The audio A / D converter 4 converts the analog audio signal extracted by the tuner 2 into a digital audio signal, and sends the digital audio signal to the MPEG encoder 5. The MPEG encoder 5 compresses the digital video signal input from the video decoder 3 and the digital audio signal input from the audio A / D converter 4 in accordance with MPEG2.

  The DVD drive 7 records the compressed digital video signal and digital audio signal input from the MPEG encoder 5 via the stream processor 6 on the DVD. Also, the DVD drive 7 reads out the digital video signal and digital audio signal compressed from the DVD and sends them to the stream processor 6.

  The OSD unit 8 generates display image signals of characters and graphics and sends them to the MPEG decoder 9. The MPEG decoder 9 decompresses the compressed digital video signal in accordance with MPEG2, and synthesizes the decompressed digital video signal with the display image signal input from the OSD unit 8 to generate a synthesized signal, and sends it to the video encoder 11. Send it out. Also, the MPEG decoder 9 sends out the display image signal input from the OSD unit 8 to the video encoder 11 without performing synthesis.

  The MPEG decoder 9 expands the compressed digital audio signal in conformity with MPEG2, and sends the expanded digital audio signal to the audio D / A converter 12.

  The video encoder 11 converts the composite signal or display image signal input from the MPEG decoder 9 into a composite signal and outputs the composite signal to a display device such as a television (not shown). The audio D / A converter 12 converts the digital audio signal input from the MPEG decoder 9 into an analog audio signal and outputs the analog audio signal to a display device (not shown).

  The MPEG decoder 10 decompresses the compressed digital audio information input from the DVD drive 7 or the MPEG encoder 5 via the stream processor 6 in accordance with MPEG2 and sends it to the audio recognition unit 13. The voice recognition unit 13 generates text data based on the expanded digital voice signal.

  The remote control receiver 14 receives an infrared signal from a remote controller (not shown) and sends a code signal to the CPU 15. The RAM 16 sequentially stores a compressed digital video signal, a compressed digital audio signal, and text data as will be described later. The flash memory 17 stores various setting information described later.

  DVD playback and broadcast viewing with character display in the DVD recorder according to the present invention configured as described above will be described below.

  When a predetermined key for displaying a display language setting screen is input by a remote controller (not shown), the CPU 15 receives a code signal from the remote control receiver 14, reads display language setting information from the flash memory 17, and displays it on the OSD unit 8. An instruction to generate an image signal is given, and a display language setting screen is displayed on a display device (not shown). On this screen, the user can specify the language of characters to be displayed during DVD playback and broadcast viewing.

  Since the flash memory 17 stores information indicating that no characters are displayed as display language setting information at the time of shipment from the factory, “OFF” is hatched as shown in FIG. 2 on the initial display language setting screen. Here, when the hatching display is moved to one of the language names displayed below “OFF” by remote control operation, and the enter key of the remote control is input, information indicating the selected language name is displayed language setting information. Is stored in the flash memory 17.

  When a predetermined key for display time setting screen display is input from a remote controller (not shown), the CPU 15 receives a code signal from the remote control receiver 14, reads display time setting information from the flash memory 17, and the OSD unit 8. Is instructed to generate a display image signal, and a display time setting screen is displayed on a display device (not shown). On this screen, the user can specify the display time of characters to be displayed for DVD playback and broadcast viewing for each language.

  Since the flash memory 17 stores information indicating that the display time of each language is standard as display time setting information at the time of shipment from the factory, each language is displayed on the initial display time setting screen as shown in FIG. "Standard" is displayed next to the name, and "Standard" next to the top language name is hatched. Here, the hatching display can be moved sequentially next to each language name by remote control operation, and either “standard”, “slightly longer”, or “long” can be operated by remote control operation while the next to any language name is hatched. Can be displayed in the hatched portion. For example, in FIG. 3B, the hatching display is moved next to “French” in FIG. 3A, “Long” is displayed in the hatched portion, and the hatching display is next to “Spanish”. It shows the position where "Slightly longer" is displayed in the hatched part.

  When the determination key of the remote controller is input, information indicating the display time of each language corresponding to the current display time setting screen is stored in the flash memory 17 as display time setting information.

  When a DVD playback operation is performed with a remote controller (not shown) with the display language and display time set in this way, the CPU 15 receives a code signal from the remote control receiver 14, and the DVD drive 7 receives the DVD according to the instruction of the CPU 15. Is started, and transmission of compressed digital video information and digital audio information to the stream processor 6 is started.

  The stream processor 6 receives a frame that is compressed digital video information and an audio frame that is compressed digital audio information from the DVD drive 7, and sequentially stores the frames and audio frames in the RAM 16.

  The stream processor 6 also sends the audio frame received from the DVD drive 7 to the MPEG decoder 10. The MPEG decoder 10 decompresses the audio frame and sends it to the voice recognition unit 13. The voice recognition unit 13 sequentially generates text data in the language represented by the display language setting information stored in the flash memory 17 based on the expanded audio frame, and stores the text data in the RAM 16 sequentially.

  In parallel with the storage of frames, audio frames, and text data in the RAM 16, the MPEG decoder 9 generates the OSD unit 8 based on the text data stored in the RAM 16 corresponding to the first predetermined number of audio frames. The display image signal to be synthesized and the frames obtained by expanding the second predetermined number of frames stored in the RAM 16 are combined and the combined signals are sequentially output to the video encoder 11. Repeat while changing.

  Here, the second predetermined number is set in advance according to information corresponding to the language represented by the display language setting information stored in the flash memory 17 among the display time setting information stored in the flash memory 17. . If the information represents “standard”, the second predetermined number is set to the number of frames corresponding to the first predetermined number of audio frames. If the information represents “slightly longer”, the second predetermined number is set to a value larger than the value set when the information represents “standard”. If the information represents “long”, the second predetermined number is set to a value larger than the value set when the information represents “slightly long”.

  Also, the MPEG decoder 9 sequentially expands the audio frames stored in the RAM 16 and outputs them to the audio D / A 12.

  As a result, the video and audio recorded on the DVD are reproduced on a display device (not shown), and the characters in the language specified on the display language setting screen are combined with the video and displayed. As for the character display, characters corresponding to a predetermined amount of sound are displayed in a display time corresponding to the language specified on the display language setting screen among the display times specified on the display time setting screen. Become. When the display time is “slightly longer”, characters corresponding to a predetermined amount of time are displayed in a longer time than when the display time is “standard”. In addition, when the display time is “long”, characters corresponding to a predetermined amount of time are displayed in a longer time than when the display time is “slightly longer”.

  If the user designates the language to be learned on the display language setting screen and designates the display time corresponding to the language as “slightly long” or “long” on the display time setting screen, the sound for a predetermined time is reproduced during DVD playback. The characters of the designated language corresponding to are displayed for a longer time than the standard, and the user can check the contents of the character display carefully, thereby enhancing the language learning effect.

  In addition, when a broadcast viewing operation is performed with a remote controller (not shown) with the display language and display time set as described above, the tuner 2 has a frequency specified by the CPU 15 from a broadcast signal input from the antenna 1. Select the broadcast signal and extract the composite signal and analog audio signal. The video decoder 3 converts the composite signal extracted by the tuner 2 into a digital video signal and sends it to the MPEG encoder 5. The audio A / D converter 4 converts the analog audio signal extracted by the tuner 2 into a digital audio signal, and sends the digital audio signal to the MPEG encoder 5. The MPEG encoder 5 compresses the digital video signal input from the video decoder 3 and the digital audio signal input from the audio A / D converter 4, and sends the frame and audio frame to the stream processor 6.

  The stream processor 6 sequentially stores the frames and audio frames received from the MPEG encoder 5 in the RAM 16.

  The stream processor 6 also sends the audio frame received from the MPEG encoder 5 to the MPEG decoder 10. The MPEG decoder 10 decompresses the audio frame and sends it to the voice recognition unit 13. The voice recognition unit 13 sequentially generates text data in the language represented by the display language setting information stored in the flash memory 17 based on the expanded audio frame, and stores the text data in the RAM 16 sequentially.

  The operation of the MPEG decoder 9 in parallel with the storage of the frame, audio frame and text data in the RAM 16 is the same as that in the above-described DVD reproduction.

  Thereby, the video of the broadcast program is displayed on a display device (not shown), the audio of the broadcast program is emitted, and the characters in the language specified on the display language setting screen are combined with the video and displayed. As for the character display, characters corresponding to a predetermined amount of sound are displayed in a display time corresponding to the language specified on the display language setting screen among the display times specified on the display time setting screen. Become. When the display time is “slightly longer”, characters corresponding to a predetermined amount of time are displayed in a longer time than when the display time is “standard”. In addition, when the display time is “long”, characters corresponding to a predetermined amount of time are displayed in a longer time than when the display time is “slightly longer”.

  If the user specifies the language that he / she wants to learn on the display language setting screen and the display time corresponding to the language is specified as “slightly long” or “long” on the display time setting screen, the audio for a predetermined time is displayed when watching the broadcast. The characters of the designated language corresponding to the characters are displayed for a longer time than the standard, and the user can check the character display contents carefully, thereby enhancing the language learning effect.

These are block diagrams of a DVD recorder according to the present invention. These are figures which show a display language setting screen. These are figures which show a display time setting screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antenna 2 Tuner 3 Video decoder 4 Audio A / D converter 5 MPEG encoder 6 Stream processor 7 DVD drive 8 OSD part 9 MPEG decoder 10 MPEG decoder 11 Video encoder 12 Audio D / A converter 13 Voice recognition part 14 Remote control receiving part 15 CPU
16 RAM
17 Flash memory

Claims (4)

Means for reading frames and audio frames from the recording medium;
Means for generating text data based on audio frames;
Means for generating a display image signal based on text data corresponding to a first predetermined number of audio frames;
Means for synthesizing the display image signal and each frame obtained by expanding a second predetermined number of frames to generate a display signal;
Generating a sound generation signal based on the audio frame,
The reproduction apparatus characterized in that the second predetermined number can be changed by an operating means. Means for generating frames and audio frames based on broadcast signals;
Means for generating text data based on audio frames;
Means for generating a display image signal based on text data corresponding to a first predetermined number of audio frames;
Means for synthesizing the display image signal and each frame obtained by expanding a second predetermined number of frames to generate a display signal;
Generating a sound generation signal based on the audio frame,
The broadcast receiving apparatus characterized in that the second predetermined number can be changed by operating means. In a playback device for playing back video information and audio information recorded on a recording medium,
During reproduction of video information and audio information recorded on the recording medium, characters corresponding to audio information for a predetermined time recorded on the recording medium are combined with the video for a predetermined display time and displayed on the display means. And a predetermined display time can be changed by an operating means. In a broadcast receiving apparatus that displays video on display means based on video information included in a broadcast signal, and that causes sound generation means to emit sound based on audio information included in the broadcast signal,
When the video is displayed on the display means based on the video information included in the broadcast signal, and the voice generation means is uttered based on the audio information included in the broadcast signal, a predetermined amount of time included in the broadcast signal is displayed. A broadcast receiving apparatus comprising: means for synthesizing a character corresponding to audio information with a video for a predetermined display time and displaying it on the display means; and the predetermined display time can be changed by an operation means.

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