JP2010219705A - Content processing apparatus and program therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such the problem that video images are not displayed at a display device though video data are included in content data since a sound quality priority mode is set in an AV amplifier. <P>SOLUTION: When it is determined that the video data are included in the content data, the sound quality priority mode (a mode for turning a video processing part to an off state) is not displayed on a display means so that the sound quality priority mode cannot be set by a user operation. When it is determined that the video data are not included in the content data, the sound priority mode is displayed on the display means so that the sound quality priority mode can be set by the user operation. The sound quality priority mode is automatically canceled when it is determined that the video data are included in the content data, and the sound quality priority mode is automatically set when it is determined that the video data are not included in the content data. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a content processing apparatus that executes processing on content data.

HDMI (High Definition
A system in which a DVD player, an AV amplifier, and a display device compliant with the (Multimedia Interface) standard are connected via an HDMI cable is used. The DVD player reproduces video data and audio data from the DVD disc, and supplies the reproduced video data and audio data to the AV amplifier. The AV amplifier performs audio processing on the received audio data in the audio processing unit and outputs the audio data to the speaker, and also performs video processing on the received video data in the video processing unit and outputs the video data to the display device. The display device displays the received video data.

  The AV amplifier is provided with a plurality of sound modes (for example, called listening mode, movie mode, game mode, sports mode, etc.), and one sound mode can be selected by a user operation. The AV amplifier performs audio processing (delay processing, volume adjustment processing, equalizer processing, etc.) preset for the selected audio mode on the audio data.

  As one of the listening modes, a sound quality priority mode (also referred to as a pure audio mode) is provided. The sound quality priority mode is selected by a user operation when content that does not include video data such as a CD is played on a DVD player, for example, and the power supply voltage supplied to the video processing unit is turned off to operate the video processing unit. In this mode, the sound quality of the audio data is further improved by stopping the operation.

  Here, when the sound quality priority mode is set by the user operation, the video processing unit is in the power-off state even though the DVD disc is being played back by the DVD player, so that the video is displayed on the display device. There is a problem that it is not. Also, in a DVD player, when content data including video data such as a DVD and content data not including video data such as a CD are played back alternately, the user must exchange a disc to be played back by the DVD player. In addition, it is necessary to switch the listening mode of the AV amplifier between the sound quality priority mode and the other modes.

JP-A-2005-57714

  An object of the present invention is to provide a content processing apparatus that solves the problem that video data is included in content data but video is not displayed because the sound quality priority mode is set.

  Another object of the present invention is to provide a content processing apparatus that can automatically switch to a sound quality priority mode or another listening mode without requiring user operation.

  A content processing apparatus according to a preferred embodiment of the present invention includes a video processing unit that performs video processing on video data included in content data, an audio processing unit that performs audio processing on audio data included in content data, and the video Audio mode setting means for setting one audio mode in response to a user operation from among a plurality of audio modes, including a sound quality priority mode for turning off the processing means, and whether or not video data is included in the content data A determination unit configured to determine whether or not the content data includes video data, and the audio mode setting unit disables the sound quality priority mode by a user operation and sets the video in the content data. When it is determined that the data is not included, the voice mode setting means performs a sound operation by a user operation. To capable of setting a priority mode state.

  When the video data is included in the content data, the sound quality priority mode cannot be set, so that the sound quality priority mode is not set by a user operation. Therefore, it is possible to solve the problem that the video data is not displayed because the video processing means is turned off even though the video data is included in the content data.

  In a preferred embodiment, the audio mode setting means further comprises display means for displaying a plurality of settable audio modes for selection by a user operation, and when it is determined that the content data includes video data. However, when it is determined that the sound quality priority mode is not displayed on the display means and the content data does not include video data so that the sound quality priority mode cannot be set by a user operation, the audio mode setting means The sound priority mode is displayed on the display means so that the sound quality priority mode can be set by a user operation.

  When the content data includes video data, the sound quality priority mode is not displayed in the list for selecting the audio mode, so the sound quality priority mode is not set by a user operation. Therefore, it is possible to solve the problem that the video data is not displayed because the video processing means is turned off even though the video data is included in the content data.

  In a preferred embodiment, when it is determined that the video data is included in the content data, the determination unit further determines whether or not the sound quality priority mode is already set, and the sound quality priority mode is already set. When it is determined that the sound quality is set, the sound mode setting means cancels the setting of the sound quality priority mode.

  When the video data is included in the content data and the sound quality priority mode is already set, the sound quality priority mode is automatically canceled. Therefore, it is possible to solve the problem that the video data is not displayed because the video processing means is turned off even though the video data is included in the content data. Furthermore, there is no need to change from the sound quality priority mode to another audio mode by a user operation.

  In a preferred embodiment, when it is determined that the video data is not included in the content data, the audio mode setting means sets the sound quality priority mode.

  When the content data does not include video data, the sound quality priority mode is automatically set. Therefore, it is not necessary to change from another voice mode to the sound quality priority mode by a user operation.

  In a preferred embodiment, when it is determined that the sound quality priority mode has already been set, the sound mode setting means cancels the setting of the sound quality priority mode, stores that the sound quality priority mode has been canceled, and stores the content. When it is determined that the video data is not included in the data, the determination unit further determines whether or not it is stored that the sound quality priority mode is canceled, and stores that the sound quality priority mode is canceled. If the voice mode setting means sets the sound quality priority mode and the release of the sound quality priority mode is not stored, the voice mode setting means does not set the sound quality priority mode.

  In this case, only when the sound quality priority mode is automatically canceled, when the video data is included in the content data, the sound quality priority mode is automatically set. Therefore, when the user's intention is set to another sound mode instead of the sound quality priority mode, it is possible to prevent the sound quality priority mode from being automatically changed.

  A content processing apparatus according to another preferred embodiment of the present invention includes a video processing unit that performs video processing on video data included in content data, an audio processing unit that performs audio processing on audio data included in the content data, Audio mode setting means for setting one audio mode in response to a user operation from among a plurality of audio modes including a sound quality priority mode for turning off the video processing means, and whether content data includes video data A determination means for determining whether or not the video data is included in the content data, the audio mode setting means cancels the sound quality priority mode and the video data is not included in the content data If it is determined, the sound mode setting means sets the sound quality priority mode.

  Therefore, it is not necessary to change from another sound mode to the sound quality priority mode or from the sound quality priority mode to another sound mode by a user operation.

  Since the sound quality priority mode is set, the video data is included in the content data, but the problem that the video is not displayed can be solved.

  Further, it is possible to automatically switch to the sound quality priority mode or other sound modes without requiring user operation.

  Hereinafter, a DVD player and an AV amplifier (content processing apparatus) according to preferred embodiments of the present invention will be specifically described with reference to the drawings. However, the present invention is not limited to these embodiments.

  FIG. 1 is a schematic block diagram showing the configuration of the DVD player 10 and the AV amplifier 20. The DVD player 10 and the AV amplifier 20 comply with the HDMI (or DVI, the same applies hereinafter) standard, and are connected to each other via an HDMI cable. In this example, content data is a general term for video data (including the meaning of image data, the same applies hereinafter) and audio data. For example, content data includes content data including video data and audio data such as a DVD video disc, and content data including only audio data and does not include video data such as a CD audio disc. The content data is not limited to those recorded on the disc, but may be broadcast data or data distributed via a network.

[Configuration of DVD Player 10]
The DVD player 10 includes a playback unit 11, an HDMI transmission unit 13, a control unit 14, an operation display unit 15, a memory 16, and a connector unit 17.

  The playback unit 11 reads video data and audio data recorded on the DVD disc from the disc and supplies them to the HDMI transmission unit 13. The reproducing unit 11 reads out audio data recorded on the CD disc from the disc and supplies it to the HDMI transmitting unit 13. The playback unit 11 detects whether or not video data is included in the content data to be played back, and supplies information about whether or not video data is included to the control unit 14. Instead of detecting whether or not video data is included, it is determined whether or not the type of disc being played is a DVD disc or a CD disc, and whether or not video data is included. Information may be supplied to the control unit 14.

  The HDMI transmission unit 13 converts the supplied video data and audio data into HDMI standard data (hereinafter simply referred to as HDMI data) by a command from the control unit 14. The HDMI transmission unit 13 transmits the converted HDMI data to the AV amplifier 20 via the connector unit 17. The HDMI transmission unit 13 is connected to the HDMI reception unit 21 of the AV amplifier 20 via a TMDS line that transmits / receives HDMI data and a hot plug line for determining the presence / absence of connection.

  The control unit 14 controls each unit of the DVD player 10 and is, for example, a microcomputer or a CPU. The control unit 14 executes each process based on an operation input from the operation display unit 15 or a control signal and data from each unit. The control unit 14 is connected to the control unit 23 of the AV amplifier 20 via the CEC line, and transmits and receives commands to and from the control unit 23.

  The control unit 14 receives information from the playback unit 11 as to whether or not video data is included in the content data being played back. When the control unit 14 determines that video data is included in the content data being played back, the control unit 23 of the AV amplifier 20 includes the video data in the content data being played back via the CEC line. Send information to the effect. When the content data being reproduced does not include video data, the control unit 14 informs the control unit 23 of the AV amplifier 20 that the content data being reproduced does not include video data via the CEC line. Send information.

[Configuration of AV Amplifier 20]
The AV amplifier 20 includes an HDMI receiving unit 21, an HDMI transmitting unit 22, a control unit 23, an operation display unit 24, an audio processing unit 26, connector units 27A and 27B, a video processing unit 28, and a power supply circuit 29. And have.

  The HDMI receiving unit 21 receives the HDMI data transmitted from the DVD player 10, generates original video data (video data before HDMI conversion) from the received HDMI data, and supplies it to the video processing unit 28. Further, the HDMI receiving unit 21 generates original audio data from the received HDMI data and supplies the generated audio data to the audio processing unit 26.

  The video processing unit 28 performs video processing (for example, image quality adjustment processing such as brightness and contrast, resolution conversion processing, and aspect ratio conversion processing) on the video data supplied from the HDMI receiving unit 21, and HDMI The data is supplied to the transmission unit 22. The video processing unit 28 operates when a power supply voltage is supplied from the power supply circuit 29. When a sound quality priority mode to be described later is selected, the supply of the power supply voltage is turned off by the control unit 23, and the operation is stopped. .

  The HDMI transmission unit 22 converts the video data supplied from the video processing unit 28 and the audio data supplied from the audio processing unit 26 into HDMI data, and sends it to a display device (not shown) via the connector unit 27B. Send.

  The audio processing unit 26 performs audio processing (signal processing, delay processing, equalizer processing, volume adjustment processing, amplification processing, D / A conversion, etc.) on the audio data supplied from the HDMI receiving unit 21, An audio signal is supplied to the speaker 60 connected to the outside. In addition, the audio processing unit 26 supplies audio data to the HDMI transmission unit 22.

  The AV amplifier 20 is provided with a plurality of audio modes (listening modes), and one audio mode can be selected by a user operation. That is, the voice mode included in the listening mode list shown in FIG. 2 is displayed on the operation display unit 24, and one voice mode is selected by a user operation. The voice processing unit 26 performs voice processing that is set in advance for the selected voice mode on the voice data.

  As one of the sound modes, a sound quality priority mode (also referred to as a pure audio mode) is provided. In the sound quality priority mode, the power supply voltage supplied to the video processing unit 28 is turned off to stop the processing of the video processing unit 28 (the video processing unit 28 is turned off). As a result, it is possible to prevent deterioration in sound quality of audio data (for example, deterioration in S / N ratio) due to the processing of the video processing unit 28.

  The control unit 23 controls each unit of the AV amplifier 20, and is, for example, a microcomputer or a CPU. The control unit 23 executes each process based on an operation input from the operation display unit 24 or a control signal and data from each unit.

  When the voice mode is selected by a user operation, the control unit 23 sets the selected voice mode (setting the voice mode means storing the voice mode in the memory 23a), and the set voice mode. The voice processing unit 26 is instructed to perform voice processing on the voice data based on the above. In addition, when the sound quality priority mode is set as the audio mode, the control unit 23 stops the supply of the power supply voltage to the video processing unit 28 and stops the operation of the video processing unit 28. The processing unit 28 is controlled.

  The control unit 23 is connected to the control unit 14 of the DVD player 10 via the CEC line, and transmits and receives commands to and from the control unit 14. The control unit 23 receives information from the control unit 14 of the DVD player 10 as to whether or not video data is included in the reproduced content data.

  If the control unit 23 determines that video data is included in the content data to be reproduced, as shown in FIG. 2B, for example, the sound quality priority mode is deleted by the user operation by deleting the sound quality priority mode from the listening mode list. Make the mode non-configurable. That is, the sound quality priority mode is not displayed on the operation display unit 24, and the sound quality priority mode cannot be selected by a user operation. When the sound quality priority mode has already been set by the user operation, the control unit 23 automatically cancels the setting of the sound quality priority mode. Furthermore, as necessary, the control unit 23 automatically sets another audio mode. Thereby, when the video data is included in the content data, the sound quality priority mode is not set and the problem that the video is not displayed on the display device can be solved.

  When the control unit 23 determines that video data is not included in the content data to be played back, as shown in FIG. 2A, for example, by including the sound quality priority mode in the listening mode list, the sound quality is improved by a user operation. Make the priority mode configurable. That is, the sound quality priority mode is displayed on the operation display unit 24, and the sound quality priority mode can be selected by a user operation. The control unit 23 automatically sets the sound quality priority mode when the sound quality priority mode is canceled by a user operation (or another sound mode is set). As a result, when the video data is not included in the content data, the sound quality priority mode is automatically set or can be set, and high-quality sound can be reproduced.

[Operation]
FIG. 3 is a flowchart showing processing of the control unit 14 of the DVD player 10. The control unit 14 determines whether or not a disc has been inserted into the playback unit 11 (S1). When a disc is inserted (YES in S1), the control unit 14 determines whether or not video data is included in the content data based on the information supplied from the playback unit 11 (S2, S3).

  When the content data includes video data (YES in S3), the control unit 14 sends information indicating that the content data includes video data to the control unit 23 of the AV amplifier 20 via the CEC line. Transmit (S4). On the other hand, when the video data is not included in the content data (NO in S3), the control unit 14 sends information indicating that the video data is not included in the content data via the CEC line. 23 (S5).

  FIG. 4 is a flowchart showing processing of the control unit 23 of the AV amplifier 20. The control unit 23 determines whether information indicating whether or not video data is included in the content data has been received from the control unit 14 of the DVD player 10 (S11). If received (YES in S11), the control unit 23 determines whether video data is included in the reproduced content data based on the received information (S12).

  When the video data is not included in the content data (NO in S12), that is, when only the audio data is included in the content data, the control unit 23 displays the sound quality in the listening mode list as shown in FIG. By including the priority mode, the sound quality priority mode can be set by a user operation (S13). Therefore, when the user desires the sound quality priority mode, the sound quality priority mode can be set by selecting the sound quality priority mode from the listening mode list shown in FIG.

  When the content data includes video data (YES in S12), the control unit 23 determines whether or not the sound quality priority mode has already been set by a user operation (S14). When the sound quality priority mode is not set (NO in S14), the control unit 23 deletes the sound quality priority mode from the listening mode list as shown in FIG. An unsettable state is set (S15). Accordingly, since the sound quality priority mode is not set by mistake by a user operation, it is possible to prevent the problem that the video is not displayed even though the video data is included in the content data.

  When the sound quality priority mode is set (YES in S14), the control unit 23 deletes the sound quality priority mode from the listening mode list as shown in FIG. An unsettable state is set (S16). Furthermore, the control unit 23 automatically cancels the setting of the sound quality priority mode, and automatically sets other sound modes such as a movie mode as necessary (S16). Therefore, it is possible to prevent the problem that the sound quality priority mode is set and the image is not displayed even though the content data includes the image data. Further, it is not necessary to cancel the setting of the sound quality priority mode by a user operation.

  In the flowchart of FIG. 4, it is possible to realize processing in which the processing of S14 and S16 is omitted.

  FIG. 5 is a flowchart showing the processing of the control unit 23 according to another embodiment. The process of FIG. 5 is different from the process of FIG. 4 in that S13 is changed to S23. When determining that the video data is not included in the content data (NO in S12), the control unit 23 automatically sets the sound quality priority mode in addition to including the sound quality priority mode in the listening mode list (S23). . That is, when another listening mode such as a movie mode is set, when the video data is not included in the content data, the mode is automatically changed to the sound quality priority mode, and high-quality sound can be reproduced. . Therefore, it is not necessary to set the sound quality priority mode by a user operation.

  FIG. 6 is a flowchart showing processing of the control unit 23 according to still another embodiment. The process of FIG. 6 differs from the process of FIG. 4 in that S31 to S33 are added instead of S13. When the video data is included in the content data (YES in S12) and the sound quality priority mode is set (YES in S14), the control unit 23 deletes the sound quality priority mode from the listening mode and prioritizes the sound quality. After the mode is canceled (S16), it is stored that the sound quality priority mode is automatically canceled instead of the user operation (a flag in the memory is set) (S31).

  On the other hand, when the video data is not included in the content data (NO in S12), the control unit 23 determines whether or not the flag is set after including the sound quality priority mode in the listening mode list (S13). (S32). That is, it is determined whether or not the sound quality priority mode is automatically canceled. If the flag is not set (NO in S32), the sound quality priority mode is not automatically canceled, and the process ends without automatically setting the sound quality priority mode.

  On the other hand, when the flag is set (YES in S32), since the sound quality priority mode is automatically canceled in S16, the control unit 23 automatically sets the sound quality priority mode (S33). Thereafter, the control unit 23 resets the flag to erase the memory that the sound quality priority mode has been automatically canceled. Therefore, only when the sound quality priority mode is automatically canceled in S16, the sound quality priority mode is automatically set in S33. Therefore, even when the user does not include video data in the content data, the sound quality priority mode is set. It is possible to prevent the sound quality priority mode from being automatically set when viewing in a sound mode other than the above is desired.

  FIG. 7 is a flowchart showing the processing of the control unit 23 according to still another embodiment. When the video data is not included in the content data (NO in S12), the control unit 23 automatically sets the sound quality priority mode (S41). On the other hand, when the content data includes video data (YES in S12), the control unit 23 automatically cancels the sound quality priority mode (S42). Therefore, the user does not need to change the audio mode each time depending on whether or not the video data is included in the content data.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment. As a way to disable the sound quality priority mode, instead of not displaying the sound quality priority mode, the sound quality priority mode is displayed in gray, or the sound quality priority mode cannot be set when the sound quality priority mode is selected. It may be displayed. The display device may have the function of the AV amplifier, and in this case, the DVD player is directly connected to the display device. Further, when the AV amplifier has the above-described DVD player function, information on whether or not video data is included in the content data is transmitted from the playback unit 11 not via the CEC line but via the internal bus. Further, the DVD player and the AV amplifier may transmit / receive information via another communication line instead of the CEC line. Further, the program may be provided in the form of a program for causing a computer to execute the above operations of the DVD player and the AV amplifier and a recording medium on which the program is recorded.

  The present invention can be suitably employed in DVD players, AV amplifiers, display devices, and the like.

1 is a block diagram showing a configuration of a DVD player 10 and an AV amplifier 20 according to a preferred embodiment of the present invention. It is a figure which shows a list mode list. 4 is a flowchart for explaining the operation of the DVD player 10. 5 is a flowchart for explaining the operation of the AV amplifier 20. 5 is a flowchart for explaining the operation of the AV amplifier 20. 5 is a flowchart for explaining the operation of the AV amplifier 20. 5 is a flowchart for explaining the operation of the AV amplifier 20.

DESCRIPTION OF SYMBOLS 10 DVD player 11 Playback part 13 HDMI transmission part 14 Control part 20 AV amplifier 21 HDMI reception part 22 HDMI transmission part 23 Control part 26 Audio | voice processing part 28 Video processing part

Claims (7)

Video processing means for executing video processing on video data included in the content data;
Audio processing means for executing audio processing on audio data included in the content data;
An audio mode setting means for setting one audio mode according to a user operation from a plurality of audio modes, including a sound quality priority mode for turning off the video processing means;
Determination means for determining whether or not video data is included in the content data,
When it is determined that the video data is included in the content data, the sound mode setting unit makes the sound quality priority mode unsettable by a user operation,
A content processing apparatus in which, when it is determined that video data is not included in content data, the sound mode setting means sets a sound quality priority mode to a state that can be set by a user operation. It further comprises display means for displaying a plurality of configurable audio modes for selection by a user operation,
When it is determined that video data is included in the content data, the sound mode setting unit does not display the sound quality priority mode on the display unit so that the sound quality priority mode cannot be set by a user operation.
2. The audio priority mode is displayed on the display unit so that the audio mode setting unit can set the audio quality priority mode by a user operation when it is determined that video data is not included in the content data. The content processing apparatus described in 1.   When it is determined that the video data is included in the content data, the determination unit further determines whether the sound quality priority mode is already set, and determines that the sound quality priority mode is already set. 3. The content processing apparatus according to claim 1, wherein the audio mode setting unit cancels the setting of the sound quality priority mode.   The content processing apparatus according to any one of claims 1 to 3, wherein when it is determined that video data is not included in the content data, the audio mode setting unit sets the sound quality priority mode. When it is determined that the sound quality priority mode has already been set, the voice mode setting means cancels the setting of the sound quality priority mode, stores that the sound quality priority mode has been canceled,
When it is determined that the video data is not included in the content data, the determination unit further determines whether or not it is stored that the sound quality priority mode is canceled, and stores that the sound quality priority mode is canceled. The audio mode setting means does not set the sound quality priority mode when the audio mode setting means sets the sound quality priority mode and the release of the sound quality priority mode is not stored. The content processing apparatus described. Video processing means for executing video processing on video data included in the content data;
Audio processing means for executing audio processing on audio data included in the content data;
An audio mode setting means for setting one audio mode according to a user operation from a plurality of audio modes, including a sound quality priority mode for turning off the video processing means;
Determination means for determining whether or not video data is included in the content data,
If it is determined that video data is included in the content data, the audio mode setting means cancels the audio quality priority mode,
A content processing apparatus in which, when it is determined that video data is not included in content data, the sound mode setting means sets a sound quality priority mode.   A content processing program for causing a computer to execute each means of the content processing apparatus according to claim 1.

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