JP5010666B2 - Information processing device - Google Patents

Description

  The present invention relates to an information processing apparatus having an image reproduction function capable of transmitting a video signal to, for example, a television broadcast receiver.

  In general, image quality suitable for display differs between when a computer image is displayed on a PC monitor and when displayed on a television.

  In addition, the image quality suitable for display differs between when the computer displays a document or the like on the TV and when the computer displays a moving image on the TV. It is considered that the former preferably has an image quality that makes it easy to read characters, and the latter has an image quality that can be displayed in a state in which the color of the moving image is close to the original color.

  In Patent Document 1, an image quality switching button is provided on an LCD display device, and when a moving image such as a DVD or TV image is input, the mode is switched to a mode in which the user performs a button operation to perform higher brightness and color correction than a normal screen. Technology is disclosed.

Japanese Patent Laid-Open No. 2002-116736

  In the technique described above, it is not considered to notify the display device of information for outputting an image with a suitable image quality. For this reason, when it is desired to display the state of the image displayed on the display device according to the user's preference setting, the user needs to perform the operation himself and lacks convenience. In particular, when an image output by a computer is displayed on a TV, for example, if an attempt is made to display the image in a suitable display form, the TV may also be used to change display settings in conjunction with computer application operations such as document and video playback. It becomes necessary to operate and becomes very complicated. Therefore, it is desirable to change the image quality without any user operation.

  An object of the present invention is to provide an information processing apparatus capable of displaying an image on a display device with a suitable image quality according to an output video.

  An information processing apparatus according to an example of the present invention includes a playback unit having a function of generating a program guide and a function of playing back a moving image, and a video of the program guide when the program guide is generated by the playback unit. A display controller that generates a signal and generates a video signal of the moving image when the moving image is played back by the playback means; and outputs the video signal to the display device and a command between the display device and the display device When the transition from the state in which the video signal of the moving image is generated by the connector for inputting / outputting the video to the state in which the video signal of the program guide is generated by the display controller is performed from the first display mode Command output means for outputting a first command for changing to the second display mode to the display device.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to display an image on a display apparatus with the suitable image quality according to the image | video to output.

The figure which shows the external appearance of the information processing apparatus and monitor concerning one Embodiment of this invention. The block diagram which shows the system configuration | structure of the information processing apparatus shown in FIG. The figure for demonstrating full screen mode and window mode. 1 is a diagram illustrating functional blocks related to a mode detection mechanism and a command transmission mechanism that are realized in the information processing apparatus illustrated in FIG. 6 is a flowchart showing a command transmission procedure associated with a mode switching operation executed by the information processing apparatus. 6 is a flowchart showing a command transmission procedure associated with a mode switching operation executed by the information processing apparatus.

  Embodiments of the present invention will be described below with reference to the drawings.

  An information processing apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. The information processing apparatus is realized as a notebook personal computer.

  It is a figure which shows the structure of the monitor (sink apparatus) and information processing apparatus (source apparatus) concerning one Embodiment of this invention with reference to FIG.

  The personal computer 1 can record and reproduce video content data (audio visual content data) such as broadcast program data and video data input from an external device. That is, the personal computer 1 has a television (TV) function for executing viewing and recording of broadcast program data broadcast by a television broadcast signal. This TV function is realized, for example, by a TV application program installed in the personal computer 1 in advance. The TV function also has a function of recording video data input from an external AV device, and a function of reproducing recorded video data and recorded broadcast program data.

  As shown in FIG. 1, here, it is assumed that the information processing apparatus 1 is connected to a monitor 2 via an HDMI (High-Definition Multimedia Interface) cable 3. The monitor 2 is a large-screen high-definition television broadcast receiver (TV). Various software (application programs) for reproducing high-definition image data is installed in the information processing apparatus 1, and the high-definition video reproduced by these application programs can be enjoyed on the monitor 2 by connecting with the HDMI cable 3. Can do. Further, the information processing apparatus 1 and the monitor 2 connected by the HDMI cable 3 can mutually transmit and receive various commands for controlling the operation of the connection partner via the HDMI cable 3.

  FIG. 2 is a diagram illustrating the configuration of the information processing apparatus 1. As shown in FIG. 2, the information processing apparatus 1 includes a CPU 11, a north bridge 12, a main memory 13, a graphics controller 14, a VRAM 14A, a display 15, a south bridge 16, a BIOS-ROM 17, an HDD 18, a magneto-optical disk drive ( ODD) 19, sound controller 20, speaker 21, embedded controller / keyboard controller (EC / KBC) 22, keyboard 23, touch pad 24, TV tuner 25, HDMI connector 26, CEC (bidirectional control between devices) controller 27, etc. I have.

  The CPU 11 is a processor that controls the operation of each unit in the information processing apparatus 1. The CPU 11 includes various programs including an operating system (OS) 100 loaded from the HDD 18 to the main memory 13, and a utility (utility 102) and an application (TV application program 101) that handle AV contents that operate under the control of the OS 100. Execute. The OS 100 has a window system for displaying a plurality of windows on a display screen.

  The TV application program 101 is software for executing a TV function. The TV application program 101 includes a live reproduction process for viewing broadcast program data received by the TV tuner 25, a recording process for recording the received broadcast program data in the HDD 18, and a broadcast program data / data recorded in the HDD 18. A reproduction process for reproducing video data is executed.

  As one of the utilities executed by the CPU 11, there is a video state notification utility 102 described later. The CPU 11 also executes a basic input / output system (BIOS) stored in the BIOS-ROM 17. Hereinafter, the basic input / output system itself stored in the BIOS-ROM 17 may be referred to as the BIOS 17.

  The north bridge 12 is a bridge device that connects the local bus of the CPU 11 and the south bridge 16. The north bridge 12 has a function of executing communication with the graphics controller 14 via a bus, and also includes a memory controller that controls access to the main memory 13. The graphics controller 14 is a display controller that controls the display 15 on the information processing apparatus 1 side. The graphics controller 14 generates a video signal to be sent to the display 15 from the image data written in the VRAM 14A. The graphics controller 14 also has a function of outputting a video signal from the HDMI connector 26 to the outside.

  The south bridge 16 is a controller that controls various devices on the PCI bus and the LPC bus. The south bridge 16 is directly connected to the BIOS-ROM 17, the HDD 18, the ODD 19, and the sound controller 20, and has a function of controlling them. The HDD 18 stores, for example, television broadcast program data, AV content downloaded via the Internet, and the ODD 19 stores, for example, a DVD that stores AV content. The sound controller 20 is a sound source controller that controls the speaker 21. The sound controller 20 also has a function of outputting an audio signal from the HDMI connector 26 to the outside.

  The EC / KBC 22 is a one-chip microcomputer in which an embedded controller for power management and a keyboard controller for controlling the keyboard 23 and the touch pad 24 are integrated.

  The HDMI connector 26 is a terminal provided for detachably connecting the HDMI cable 3. The CEC controller 27 executes data transfer control for transmitting and receiving various commands for operation control via the HDMI connector 26 under the control of the EC / KBC 22.

  The TV tuner 25 is a receiving device that receives broadcast program data broadcast by a television (TV) broadcast signal, and is connected to the antenna terminal 25A. The TV tuner 25 is realized as a digital TV tuner capable of receiving digital broadcast program data such as terrestrial digital TV broadcast. The TV tuner 25 also has a function of capturing video data input from an external device.

  A moving image displayed by the TV application program 101 is normally displayed in a window corresponding to the TV application program 101. In this case, as shown in FIG. 3A, for example, a window corresponding to the TV application program 101 is arranged on the desktop screen, and a moving image is displayed in the window (window mode). When display is performed in the window mode in this way, for example, text of a document application can be displayed.

  The computer 1 can also display a moving image on the display screen of the display 15 in full screen (full screen mode). In this full screen mode, as shown in FIG. 3B, only moving images are displayed in almost all areas on the display screen. In this case, the window corresponding to the application screen other than the desktop screen and the video playback application program is basically not displayed. Further, the menu bar of the window corresponding to the video playback application program is not displayed, and only the moving image is displayed in almost all areas on the display screen.

  Here, a case where a video signal is transmitted from the computer 1 via the HDMI cable 3 and an image based on the video signal is displayed on the monitor 2 is considered. At this time, the video signal of the image generated in either the full screen mode or the window mode is sent to the monitor 2.

  For example, when displaying a moving image on the monitor 2, it is preferable that the monitor 2 modify the image so that the image is displayed with an image quality suitable for moving image display. However, when displaying an image containing text, the text portion is not clear and difficult to see in an image quality state suitable for moving image display.

  Therefore, when the information output from the computer 1 is a video signal in the full screen mode, the image quality is set so that the color of the moving image can be displayed in a state close to the original color, and when the information is the video signal in the window mode, characters are displayed. It is sufficient to set the image quality so that it can be easily read, but on the monitor 2 side, it is possible to know whether the received video signal is generated in the window mode or the full screen mode on the computer 1 side. Absent. Therefore, the computer 1 transmits a command from the CEC controller 27 as to whether the video signal is generated in the window mode or the full screen mode, and requests the monitor 2 to switch the image quality. The monitor 2 adjusts the image quality according to the command sent with the video signal.

  In the present embodiment, for example, the image quality (second display mode) that can be displayed in a state in which the color of the moving image corresponding to the full-screen mode image is close to the original color, and the characters corresponding to the window mode image are read. It is assumed that the easy image quality (first display mode) is determined based on the parameters set at the time of product shipment. However, the present invention is not limited to this. You may set suitably.

  Further, in the case of the computer 1 having the TV tuner 25, a moving image is not always displayed even in the full screen mode, and a program guide is displayed from metadata received by the TV tuner or stored in the HDD 18. Or display a list of content that you have. In this case, the monitor 2 is set to an image quality (first display mode) compatible with the window mode in which text can be clearly displayed.

  The mechanism for detecting the mode of the computer 1 and the mechanism for transmitting will be described below. FIG. 4 is a block diagram showing the configuration of a mode detection mechanism and a command transmission mechanism according to an embodiment of the present invention.

  For example, when an operation such as switching from one mode of the window mode and the full screen mode to the other mode or switching between display / non-display of the program guide is performed using the keyboard 23, the key code corresponding to the keyboard operation is changed. It is generated by the EC / KBC 22 and passed to the OS 100 by the BIOS 17.

  When switching from one mode of the window mode and the full screen mode to the other mode, the video status notification utility 102 uses the CEC controller 27 to notify the monitor 2 of the mode status in conjunction with this. This program is registered as a resident program that always operates when the information processing apparatus 1 is powered on.

  The video status notification utility 102 that is a resident program has a video status monitoring module 1021 and a video status notification module 1022. The video state monitoring module 1021 detects the activation state of the TV application program 101, and detects mode switching when activation is detected.

  When the mode switching is detected, the video state notification module 1022 instructs the CEC controller 27 to transmit the switched mode to the monitor 2. The video state notification module 1022 instructs the CEC controller 27 to send a command corresponding to the designated mode to the monitor 2. Commands sent by the CEC 27 to the monitor 2 are a full-screen moving image mode command indicating that the moving image is displayed in the full screen mode and a window mode command indicating that the moving image is not displayed in the full screen mode. One.

  When the monitor 2 receives the full-screen video mode command, the monitor 2 changes the image quality setting to the second display mode suitable for video playback. Further, when the monitor 2 receives the window mode command, the monitor 2 changes the image quality setting to the first display mode suitable for document reference or the like.

  Note that the TV application 101 of this embodiment includes a program guide display module 1012 and a content list display module 1013 in addition to a moving image playback module 1011 that plays back moving images from broadcast program data received via the TV tuner 25. Yes.

  The program guide display module 1012 is a module for executing a function of acquiring and displaying an electronic program guide via the TV tuner 25, for example. The content list display module is a module for reading out information related to content stored in, for example, the HDD 18 and executing a function of displaying a content list.

  Whether the video state monitoring module described above outputs not only the display mode (full screen mode or window mode) of the TV application 101 but also the video signal of the moving image reproduced by the moving image reproduction module 1011, the program table Events such as whether the program table and content list generated by the display module 1012 and the content list display module 1013 are output are also detected.

  Even when an image generated by the TV application 101 is displayed, when displaying a program guide or content list, it is preferable to set the display mode of the monitor 2 to a mode in which characters are easy to read. Therefore, in the present embodiment, when the program guide or content list is displayed (when playback of moving images is stopped), the video state monitoring module 1021 detects the event, and the video state notification module 1022 detects the display mode of the monitor 2. Is sent from the second display mode to the first display mode (window mode command).

  In this embodiment, when the CEC controller 27 is instructed to transmit the switched mode to the monitor 2, the TV application program 101, the program guide display program 103, the content is not sent from the video state notification utility 102. An instruction can be issued from the list display program 104 or the like.

  FIG. 5 and FIG. 6 are flowcharts showing a command transmission procedure associated with the mode switching operation executed by the information processing apparatus 1 of the present embodiment. The following processing is processing performed in a state where the computer 1 and the monitor 2 are connected by the HDMI cable 3.

  When the computer 1 is booted and the video status notification utility 102 is activated, since no other application program such as the TV application program 101 is activated, the video status notification module 1022 sends a window mode command ( A command to display on the monitor 2 in the first display mode is instructed to be transmitted to the monitor 2. The CEC controller 27 transmits a window mode command to the monitor 2 (step S11).

  Next, the video state monitoring module 1021 detects whether the TV application program 101 is activated (step S12). If it is determined that the TV application program 101 is not started (No in step S12), the process of step S12 is periodically performed to check the start of the TV application program 101.

  If it is determined that the TV application program 101 is activated (Yes in step S12), the video state monitoring module 1021 detects whether an event has occurred (step S13). If it is determined that no event has occurred (No in step S13), the process returns to step S12.

  If it is determined that an event has occurred (Yes in step S13), the video state monitoring module 1021 determines whether the generated event is an event for shifting to the full screen mode (step S14). If it is determined that the event is not for shifting to the full screen mode (No in step S14), the process returns to step S12. When it is determined that the generated event is an event for shifting to the full screen mode (Yes in step S14), the video state monitoring module 1021 sends the video state notification module 1022 to the CEC controller 27 and the video signal in the full screen mode. Is instructed to transmit to the monitor 2 a full-screen moving image mode command (a command for causing the monitor 2 to display in the second display mode). In response to the instruction, the CEC controller 27 transmits a full-screen moving image mode command to the monitor 2 (step S15).

  After the transmission, the video state monitoring module 1021 further detects whether or not an event has occurred (step S16). If it is determined that no event has occurred (No in step S16), the process returns to step S16. If it is determined that an event has occurred (Yes in step S16), it is determined whether the generated event is an event for shifting to the window mode (step S17). Note that the event for shifting to the window mode includes an event for terminating the application 101. If it is determined that the generated event is an event for shifting to the window mode (Yes in step S17), the video state notification module 1022 returns the process to S11, and the window mode video signal is transmitted to the CEC controller 27. A window mode command (command for displaying in the first display mode) indicating that it is displayed is instructed to be transmitted to the monitor 2.

  If it is determined that the event that has occurred is not an event for changing to the window mode (No in step S17), the video state monitoring module 1021 determines whether or not the event that has occurred is an event for displaying the program guide. Is discriminated (step S18). When it is determined that the generated event is not an event for displaying the program guide (No in step S18), the video state monitoring module 1021 is an event for displaying a list of contents stored in the HDD 18. Whether or not (step S19).

  Even when the TV application program 101 is displayed in the full screen mode, if it is determined in step S18 that the event is an event for displaying the program guide (Yes in step S18), the video state notification module. 1022 instructs the CEC controller 27 to transmit to the monitor 2 a window mode command (a command for displaying in the first display mode) indicating that a video signal in the window mode is being transmitted. In response to the instruction, the CEC controller 27 transmits a window mode command to the monitor 2 (step S20). Similarly, even if the TV application program 101 is displayed in the full screen mode, if it is determined in step S19 that the event is for displaying a list of contents (Yes in step S19), The video state notification module 1022 instructs the CEC controller 27 to transmit to the monitor 2 a window mode command (a command for displaying in the first display mode) indicating that a window mode video signal is being transmitted. The CEC controller 27 transmits a window mode command to the monitor 2 (step S20).

  Thereafter, after transmission, the video state monitoring module 1021 further detects whether or not an event has occurred (step S21). If it is determined that no event has occurred (No in step S21), the process returns to step S21. If it is determined that an event has occurred (Yes in step S21), the video state monitoring module 1021 determines whether the generated event is an event for ending the display state of the program guide or the content list and starting a video. Is determined (step S22). When it is determined that the event that has occurred ends the display state of the program guide or the content list and is not an event for starting a moving image (No in step S22), the process returns to step S21.

  When it is determined that the generated event is an event for ending the display state of the program guide or the content list and starting the moving image display (Yes in step S22. Note that in step S22, the TV application program 101 is full screen. The video state monitoring module 1021 instructs the monitor 2 to transmit a full screen moving image mode command (a command for displaying in the second display mode). In response to the instruction, the CEC controller 27 transmits a full-screen moving image mode command to the monitor 2 (step S23). Then, the video state monitoring module 1021 sequentially executes the processes from step S16.

  Through the above processing, the computer 1 can transmit a command corresponding to the content of the video displayed according to the video signal. When the monitor 2 receives a command transmitted from the computer and displays a video signal received via the HDMI cable 3, the monitor 2 performs display with a suitable image quality according to the received command.

  In the above description, the TV application program 101 that displays a broadcast program received by the TV tuner 25 has been described as an example. However, instead of the TV application program 101, content information recorded on an optical disc such as a DVD is displayed by the ODD 19. It may be a program that reads and displays content according to the read information. Moreover, in the said embodiment, although the computer 1 and the monitor 2 are connected with the HDMI cable, you may connect with a DisplayPort cable.

  Although the notification application via HDMI mediates between the video playback application and the monitor 2, the video playback application may directly notify the TV of the status.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Personal computer, 2 ... Monitor, 3 ... HDMI cable, 11 ... CPU, 14 ... Graphics controller, 23 ... Keyboard, 24 ... Touchpad, 25 ... TV tuner, 25A ... Antenna terminal, 26 ... HDMI connector, 27 ... CEC controller, 100 ... operating system, 101 ... TV application program, 102 ... video status notification utility, 1011 ... video playback module, 1012 ... program guide display module, 1013 ... content list display module, 1021 ... video status monitoring module, 1022 ... Video status notification module.

Claims (7)

A program having a function for generating a program guide and a function for reproducing a moving image of a television broadcast is implemented.
Execution means to perform ,
A display controller for generating a video signal of the program guide when the program guide is generated, the moving image to generate a video signal of the moving image when it is reproduced by said program by said program,
A connector for inputting and outputting commands to and from the display device while outputting the video signal to the display device,
When transitioning from the state in which the video signal of the moving image is generated by the display controller to the state in which the video signal of the program guide is generated during the reproduction of the moving image of the television broadcast by the program , An information processing apparatus comprising: command output means for outputting a first command for changing from one display mode to a second display mode to the display device. A detection means for detecting the occurrence of an event for displaying the program guide;
The command output means is configured to detect the first frame when the detection means detects the event.
The information processing apparatus according to claim 1, wherein the information processing apparatus outputs a command. When the display controller makes a transition from the state in which the video signal of the program guide is generated to the state in which the video signal of the moving image is generated, the command output means starts the second display mode from the second display mode. The information processing apparatus according to claim 1, wherein a second command for changing to one display mode is output to the display apparatus. When reproduction of a moving image reproduced by the program is stopped, the command output means outputs a first command for changing from the first display mode to the second display mode to the display device. The information processing apparatus according to claim 1, wherein: A receiver for receiving the broadcast program;
The information processing apparatus according to claim 1, wherein the program has a function of storing a broadcast program received by the receiving apparatus as content in a storage device. The program has a function of generating a list of contents stored in the storage device,
The command output means switches from the first display mode when the display controller makes a transition from a state in which the video signal of the moving image is generated to a state in which a video signal including the content list is generated. The information processing apparatus according to claim 4, wherein a first command for changing to the second display mode is output to the display apparatus. A method for transmitting a command to a display device, executed in an information processing device,
A program having a function for generating a program guide and a function for reproducing a moving image of a television broadcast is implemented.
To do,
When a program guide is generated by the program, a video signal of the program guide is generated.
When a moving image is played back by the program, a video signal of the moving image is generated
And
Outputs the video signal to the display device and inputs / outputs commands to / from the display device.
To help,
During the reproduction of the moving image of the television broadcast by the program, the video signal of the moving image
Transition from the state where is generated to the state where the video signal of the program guide is generated,
A first command for changing from the first display mode to the second display mode is sent to the display device.
Output and
A command transmission method comprising:

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