JP2014126888A - Information processor, display control method and display control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processor capable of suppressing power consumption in the case of viewing a television in terms of one aspect.SOLUTION: A television application function part 21 is controlled by a television application 15 operating on an OS to allow a liquid crystal display device 32 to display a video. An independent television function part 22 allows the liquid crystal display device 32 to display the video. When the liquid crystal display device 32 is allowed to display the video from the television application function part 21 by the television application 15, a sleep management part 16 switches the video from the television application function part 21 to a video from the independent television function part 22, and allows the television application 15 to reside in a memory 13 during the shift of a personal computer 1 to a sleep mode.

Description

  The present invention relates to an information processing apparatus, a display control method, and a display control program.

  When viewing a television with a personal computer, the user can view the television with one of two television functions, an independent television function or a television application function. The independent TV function includes a TV tuner dedicated to the independent TV function as hardware for realizing the TV function without requiring an OS (Operating System), and is a function for displaying TV images without starting the OS. The TV application function includes a TV tuner dedicated to the TV application function and a TV application that is an application program that runs on the OS, and is a function that displays TV images under the control of the TV application.

  According to the independent television function, it is not necessary to start up the OS, so that the television image can be displayed at a high speed, but there are no functions such as fast-forwarding, reproduction, frame-by-frame advance, and pause. The TV application function can decode and display TV video, write TV video to a hard disk, output TV audio, etc., but most of the hardware that makes up a personal computer operates. The power consumption is extremely large.

  Therefore, a method of switching between the independent TV function and the TV application function in a personal computer equipped with a TV function has been proposed.

  For example, the CPU changes from an operating state to a first sleep state where the CPU consumes less power than the operating state, and the CPU consumes less power than the first sleep state and moves from the first sleep state to the operating state. When the transition to one of the second sleep states in which the time spent for return is long and the BIOS starts a TV application program that reproduces broadcast program data received by the TV tuner, the CPU enters the second sleep state. It has been proposed to prohibit transitions.

  In addition, the history information storage unit that acquires and stores history information indicating the usage time of the application or the application is stored in the computer, and the history information stored by the history information storage unit is referred to to be the same or corresponding A history information extraction unit that identifies a usage time zone estimated to be used in the future based on the number of history information indicating the usage time zone to be used, and extracts history information related to the specified usage time zone; An automatic start setting unit configured to set automatic start or automatic return of the computer and automatic start of the application to the system management unit of the computer based on the use time period indicated by the history information extracted by the extraction unit It has been proposed.

JP 2007-264953 A WO2009 / 016719

  According to the above-described method for controlling the sleep state while the TV application is activated, if the user wants to view the TV using the TV application function during the sleep state, the user must return to the operation state. For this reason, even though the OS is not shut down, the user cannot quickly view the television by the television application function and cannot record the television image. In addition, according to the method of returning from the sleep mode and starting the TV application during the time when the user watches the TV with the TV application function, the TV application function is used only for watching the TV with the TV application function. The personal computer is returned from the sleep mode. For this reason, when the user does not view the TV with the TV application function, the power is wasted.

  On the other hand, in the case of not using such control, in order to view the television with the independent television function, the user manually stops the operating television application, shifts the personal computer to the sleep mode, It is necessary to switch to the independent TV function mode.

  An object of the present invention is to provide an information processing apparatus capable of suppressing power consumption when viewing a television.

  According to one aspect, the information processing apparatus is controlled by a television application that operates on the OS, and displays a television application function unit that displays video on the display device, and an independent television that displays video on the display device without starting the OS. When the information processing apparatus shifts to the sleep mode when the function unit, the memory for storing the OS and the TV application, and the video from the TV application function unit are displayed on the display device by the TV application, the TV application A video switching processing unit that switches the video from the functional unit to the video from the independent television functional unit and makes the television application resident in the memory.

  According to one aspect, the information processing apparatus can suppress power consumption when watching television.

It is a figure which shows an example of the hardware constitutions of a personal computer. It is a figure which shows an example of a structure of a personal computer. It is a television image display processing flow in a personal computer. It is a television image display processing flow in a personal computer.

  FIG. 1 is a diagram illustrating an example of a hardware configuration of a personal computer.

  The personal computer 1 is an example of an information processing apparatus, and includes an OS control unit 10, a television control unit 20, a video output control unit 30, and a microcomputer control unit 40. The OS control unit 10 includes a system controller 11, a CPU (Central Processing Unit) 12, a memory 13, and an HDD 14. The TV control unit 20 includes a TV application function unit 21, an independent TV function unit 22, and a TV antenna unit 23. The video output control unit 30 includes a scaler 31 and a liquid crystal display device 32. The microcomputer control unit 40 includes a remote control microcomputer 41 and a remote control light receiving unit 42.

  The OS control unit 10 controls the entire personal computer 1 and includes a CPU 12 described later. The OS control unit 10 is a main part of the personal computer 1. In other words, by executing the BIOS, OS, and various application programs on the CPU 12, the personal computer 1 is controlled and various processes are executed. In the following description, an application program is referred to as an application or an application.

  The television control unit 20 displays a television image based on the broadcast wave signal received by the television antenna unit 23 on the liquid crystal display device 32. The TV control unit 20 is realized individually by each of the TV application function unit 21 and the independent TV function unit 22. The TV antenna unit 23 receives broadcast radio waves, in other words, broadcast wave signals, by the antenna, and distributes them to the TV tuners of the TV application function unit 21 and the independent TV function unit 22 via the distributor. The TV application function unit 21 and the independent TV function unit 22 each display an image on the liquid crystal display device 32. The liquid crystal display device 32 is an example of a display device, and is not limited thereto, and various display devices can be used.

  The video output control unit 30 displays the video processed by the CPU 12 of the OS control unit 10 on the liquid crystal display device 32. The video output control unit 30 in this case is an output device of the personal computer 1. In addition, the video output control unit 30 displays the video output from the TV application function unit 21 and the independent TV function unit 22 of the TV control unit 20 on the liquid crystal display device 32. In this case, the video output control unit 30 is a part of a television receiver.

  The microcomputer control unit 40 is an example of hardware that controls the television control unit 20, and is, for example, a single microcomputer. The remote control light receiving unit 42 receives infrared light transmitted from the remote controller for television, in other words, from the remote control, converts it into an electrical signal, and transmits the converted electrical signal to the remote control microcomputer 41. The remote control microcomputer 41 decodes the electrical signal transmitted from the remote control light receiving unit 42, generates a corresponding command based on the decoding result, and issues the generated command to the scaler 31 and the system controller 11.

  The TV antenna unit 23 and the video output control unit 30 including the scaler 31 and the liquid crystal display device 32 are shared by the TV application function unit 21 and the independent TV function unit 22. The microcomputer control unit 40 including the remote control microcomputer 41 and the remote control light receiving unit 42 is also shared by the TV application function unit 21 and the independent TV function unit 22. The OS control unit 10 is a part of the personal computer 1 excluding the TV control unit 20 and the video output control unit 30 and the microcomputer control unit 40 that are shared by the OS control unit 10 and the TV control unit 20. Yes, as described above, it is the main part of the personal computer 1 and is within the range controlled by the OS.

  In the OS control unit 10, the system controller 11 controls the entire personal computer 1 such as data input / output management. A CPU 12 is connected to the system controller 11, and a memory 13 is connected to the CPU 12. The system controller 11 is connected to an HDD 14 and an input / output controller via a bus. For example, an input / output device such as a keyboard and a mouse is connected to the input / output controller. The system controller 11 is connected to the remote control microcomputer 41 via another bus, and is further connected to the TV application function unit 21 via another bus.

  The CPU 12 reads and executes various programs such as BIOS, OS, and application read to the memory 13 via the system controller 11. The memory 13 is an example of a main storage device, and is an area for executing a program read from the HDD 14, for example. For example, the memory 13 stores an OS, a television application 15 described later, and the like. The HDD 14 is an example of storage, and stores an OS and applications.

  In the TV control unit 20, the TV application function unit 21 includes a TV tuner that is a dedicated tuner for the TV application, and a TV application 15 described later. Actually, the television application 15 is an application that runs on the OS, in other words, is executed on the CPU 12 as described later. Accordingly, the TV application function unit 21 is controlled by the TV application 15 operating on the OS.

  The TV tuner for the TV application is a hardware unit that implements the main part of the TV application function unit 21. The TV tuner for the TV application decodes the broadcast wave signal received from the TV antenna unit 23 and sends the decoding result to the TV application 15 operating on the CPU 12 via the system controller 11. The TV application function unit 21 outputs the received decoding result to the scaler 31 as a video signal via the system controller 11 by the TV application 15, issues a video output command, and stores the video data in the HDD 14.

  The TV application function tuner 21 and the TV application 15 constitute the main part of the TV application function unit 21. The TV tuner for the TV application is controlled by the TV application 15 operating on the OS, and displays video on a display device. When the TV application 15 is activated, the TV tuner for the TV application operates, and video is output from the TV tuner for the TV application.

  Note that the TV application function unit 21 includes an audio application and a graphics application that are applications for the TV application. The audio application is an application that operates on the OS, and executes various processes for sound such as increase / decrease in volume in accordance with instructions from the TV application 15 that have received an input about television sound from the user. The graphics application is an application that runs on the OS, and executes various processes for video such as fast-forwarding in accordance with instructions from the TV application 15 that have received input about the TV video by the user. The video output control unit 30 or the scaler 31 may include an audio application and a graphics application.

  The independent television function unit 22 includes an independent television tuner that is a dedicated tuner for independent television. Actually, the independent TV tuner includes a TV tuner, a RAM and a ROM that store firmware for control, and a CPU that decodes the received broadcast wave signal. The independent TV tuner of the independent TV function unit 22 is a hardware unit that implements the main part of the independent TV function unit 22. The independent TV tuner of the independent TV function unit 22 decodes the broadcast wave signal received from the TV antenna unit 23, and outputs it to the scaler 31 as a video signal via the remote control microcomputer 41.

  The independent television tuner constitutes the main part of the independent television function unit 22. The independent TV tuner displays the video on the display device without starting up the OS. When the TV switch is turned on, the independent TV tuner operates immediately and video is output from the independent TV tuner. The TV switch is provided separately from the power button of the personal computer 1.

  The TV application function unit 21, in other words, the TV application 15 transmits and receives, for example, channel information to and from the independent TV function unit 22 through the system controller 11 and the remote control microcomputer 41 of the microcomputer control unit 40. The channel information is identification information indicating the channel of the broadcast radio wave received by each of the TV application function unit 21 and the independent TV function unit 22. Thus, the TV application function unit 21 and the independent TV function unit 22 can share channel information by communicating via the remote control microcomputer 41 of the microcomputer control unit 40.

  In the video output control unit 30, the scaler 31 controls the output from the TV application function unit 21 and the output from the independent TV function unit 22. In other words, the scaler 31 generates a display target video based on the video output from the TV application function unit 21 and the video output from the independent TV function unit 22, and inputs the generated video to the liquid crystal display device 32. To do.

  The scaler 31 generates a video signal based on a command received from the CPU 12 via the system controller 11 or a command received from the remote control light receiving unit 42 via the remote control microcomputer 41, and the generated video signal is displayed on the liquid crystal display device 32. Transfer to and display. The scaler 31 switches channels according to a command from the remote control microcomputer 41 and performs brightness adjustment.

  The liquid crystal display device 32 is an example of a display device, for example, and outputs an image from the scaler 31. In other words, the liquid crystal display device 32 displays the video from the TV application function unit 21 and the video from the independent TV function unit 22.

  FIG. 2 is a diagram illustrating an example of the configuration of a personal computer.

  The OS control unit 10 includes a television application 15, a sleep management unit 16, and a sleep timer 17. The TV application 15 and the sleep management unit 16 are applications that run on the OS, and are executed on the CPU 12. The sleep timer 17 is a timer used by the sleep management unit 16.

  The TV application 15 controls a TV tuner for the TV application in accordance with a user operation such as channel selection. The TV application 15 is a part of the OS control unit 10 in that it is executed on the CPU 12, and constitutes a part of the TV application function unit 21 in that it controls a TV tuner for the TV application. In FIG. 2, the TV application 15 is shown inside the OS control unit 10 separately from the TV application function unit 21, but forms a part of the TV application function unit 21 as described above. .

  The sleep management unit 16 resides in, for example, the memory 13 and executes a process for shifting to the sleep mode. Specifically, the sleep management unit 16 shifts to the sleep mode when an instruction input by the user is not input to the personal computer 1 for a predetermined period. This state is a state in which the user is not operating the personal computer 1, and specifically, a state in which the user is not operating a keyboard, a mouse, a TV remote control, a start button of the personal computer 1, or the like. It is.

  The period for shifting to the sleep mode is determined in advance as the value SLP of the sleep timer 17. The value SLP of the sleep timer 17 is input by a user and held by the OS, for example. When the period T when there is no instruction input by the user is longer than the value SLP of the sleep timer 17, the sleep management unit 16 executes a process for shifting to the sleep mode.

  The sleep management unit 16 executes power control during the sleep mode. Therefore, it can be said that the sleep management unit 16 is a power supply control unit during the sleep mode. Specifically, the sleep management unit 16 supplies power to a circuit for displaying an image from the independent television function unit 22 during the sleep mode, and supplies power to circuits other than the independent television function unit 22. Stop supplying.

  For example, the sleep management unit 16 supplies power to predetermined portions of the system controller 11, CPU 12, memory 13, and HDD 14, and stops supplying power to other portions. Thereby, the minimum function in the OS control unit 10 can be maintained, and power consumption can be suppressed by shifting to the sleep mode. At this time, in the memory 13, power is supplied to a resident memory unit that is an area for storing a program resident on the memory 13 such as an OS. Thereby, as will be described later, the TV application 15 can be resident in the memory 13 and the scheduled recording can be immediately executed even in the sleep mode.

  Further, the sleep management unit 16 continues to supply power to the input / output controller connected to the system controller 11 during the sleep mode. Thereby, for example, when the user operates a keyboard, a mouse, a TV remote control, a start button of the personal computer 1, etc., the input / output controller detects an input corresponding to the operation and notifies the OS, and the OS sleeps. It is possible to return from the mode to the operating state.

  The sleep management unit 16 supplies power to the television control unit 20, the video output control unit 30, and the microcomputer control unit 40. Thereby, the user can view the video from the independent television function unit 22. Note that the TV control unit 20 may not supply power to the TV application function unit 21 or the TV tuner for the TV application.

  Here, in a case where the video from the TV application function unit 21 is displayed on the liquid crystal display device 32, when the instruction input by the user is not input for a predetermined period, the user is only watching the TV. It is. In other words, processing by the TV application function unit 21 such as fast forward and slow playback is not necessary.

  Therefore, the sleep management unit 16 executes a video switching process. In other words, it can be said that the sleep management unit 16 is a video switching processing unit. Specifically, when the video from the TV application function unit 21 is displayed on the liquid crystal display device 32 and the personal computer 1 shifts to the sleep mode, the sleep management unit 16 starts from the TV application function unit 21. Is switched to the video from the independent television function unit 22. Thereby, the personal computer 1 is shifted to the sleep mode and the video from the independent television function unit 22 is switched without requiring a special operation of the user while maintaining the state of the television video display. Thus, the power consumption can be reduced twice.

  When switching the video from the TV application function unit 21 to the video from the independent TV function unit 22, the sleep management unit 16 sends the channel information to the independent TV function unit 22 via the remote control microcomputer 41 of the microcomputer control unit 40. Notice. As a result, the video from the independent TV function unit 22 after switching can be set to the same channel as the video from the TV application function unit 21 before switching. Therefore, the user is not aware of switching from the video of the TV application function unit 21 to the video of the independent TV function unit 22.

  In addition, when the sleep management unit 16 switches the video from the TV application function unit 21 to the video from the independent TV function unit 22, the volume, mute state, subtitle or You may make it notify the valid or invalid state of character superimposition, and the display state of data broadcasting. As a result, the video state and the audio state after switching can be made the same as the video state and the audio state before switching. Therefore, the user is not aware of switching from the TV application function unit 21 to the independent TV function unit 22.

  The sleep management unit 16 stores the TV application 15 in the memory when the personal computer 1 shifts to the sleep mode when the TV application 15 displays the video from the TV application function unit 21 on the liquid crystal display device 32. 13 is resident. Thus, in the case of reserved recording or when the user instructs viewing by the TV application function unit 21, the TV application 15 on the memory 13 is immediately executed without loading the TV application 15 from the HDD 14 into the memory 13. be able to.

  At this time, the sleep management unit 16 displays the video output information when the personal computer 1 shifts to the sleep mode when the video from the TV application function unit 21 is displayed on the liquid crystal display device 32 by the TV application 15. After receiving the video application 15 from the scaler 31 of the video output control unit 30 that controls the output of the video to the liquid crystal display device 32 via the TV application 15, the TV application 15 is made resident in the memory 13. The video output information indicates that the video from the TV application function unit 21 has been switched to the video from the independent TV function unit 22. The sleep management unit 16 may receive the video output information directly from the scaler 31 without going through the TV application 15.

  For example, the sleep management unit 16 inquires of the TV application 15 whether or not it is the start time of reserved recording, acquires a response from the TV application 15, and starts reserved recording of TV video based on the acquired response. When the reservation recording starts, the sleep management unit 16 returns the personal computer 1 from the sleep mode and switches the video from the independent TV function unit 22 to the video from the TV application function unit 21. As a result, when the reserved recording is started, it is possible to return from the sleep mode and obtain an image from the TV application function unit 21 by the TV application 15 on the memory 13. Therefore, even if the video from the TV application function unit 21 is switched to the video from the independent TV function unit 22, the reserved recording is not executed, so that the user does not feel inconvenience.

  Note that the television application 15 holds recording information regarding reserved recording. For example, the recording information is stored in a storage area used by the television application 15 in the memory 13 and is saved and retained in the HDD 14 at the time of shutdown. The recording information includes, for example, information such as recording start and end times, recording target channels, recording target programs, and recording modes. When the TV application 15 receives an inquiry from the sleep management unit 16 regarding whether or not it is the time for starting the reserved recording, it determines whether or not it is the time for starting the reserved recording based on the stored recording information. A response to be shown is generated, and the generated response is sent to the sleep management unit 16. Even when the personal computer 1 shifts to the sleep mode, since the TV application 15 is resident in the memory 13, recording can be started using the recording information held by the TV application 15.

  When the video from the TV application function unit 21 is being recorded, the sleep management unit 16 prohibits the transition to the sleep mode. Thereby, it can be avoided that the recording is interrupted during the transition to the sleep mode.

  For example, as illustrated in FIG. 2, when the instruction input by the user is not input to the personal computer 1 for a predetermined period, the sleep management unit 16 determines to shift to the sleep mode and generates sleep timer information. . The sleep timer information is information indicating transition to the sleep mode. The sleep management unit 16 notifies the generated sleep timer information to the television application 15, in other words, the television application function unit 21.

  When the TV application function unit 21 receives the sleep timer information from the sleep management unit 16, it generates channel information and screen switching information, and sends the generated channel information and screen switching information to the remote control microcomputer 41 of the microcomputer control unit 40. send. The screen switching information is information for instructing to switch the screen from the video of the TV application function unit 21 to the video of the independent TV function unit 22.

  Based on the received screen switching information, the remote control microcomputer 41 of the microcomputer control unit 40 switches the received channel information from the video of the TV application function unit 21 to the video of the independent TV function unit 22. Send to 22. When the independent TV function unit 22 receives the channel information, the video output control unit 30 outputs the video of the same channel as the video channel of the TV application function unit 21 that has been output so far, based on the received channel information. Output to the scaler 31.

  The remote control microcomputer 41 of the microcomputer control unit 40 sends the received screen switching information to the scaler 31. Based on the received screen switching information, the scaler 31 switches the video of the TV application function unit 21 output so far to the video of the independent TV function unit 22. Thereafter, the scaler 31 generates video output information and sends the generated video output information to the television application 15. The video output information is information indicating that the video output at that time, in other words, the video of the independent television function unit 22 is output.

  When receiving the video output information, the television application 15 sends the received video output information to the sleep management unit 16. When the sleep management unit 16 receives the video output information, the sleep management unit 16 determines that the video switching has been completed, and makes the television application 15 resident in the memory 13 based on the received video output information. Specifically, the sleep management unit 16 moves and stores the TV application 15 in the resident memory unit of the memory 13 regardless of the storage position up to that point in the memory 13. At this time, the television application 15 may be stored in a predetermined position of the resident memory unit of the memory 13.

  The sleep management unit 16 causes the personal computer 1 to enter the sleep mode after the television application 15 is resident in the memory 13. Thereafter, the sleep management unit 16 generates TV application resident information and sends the generated TV application resident information to the TV application 15, in other words, the TV application function unit 21. The TV application resident information is information indicating that the TV application 15 is resident in the memory 13. Thereby, the TV application function unit 21 can know that the TV application 15 is resident in the memory 13, in other words, is activated.

  When the personal computer 1 does not include the independent television function unit 22, the image from the external television function unit connected to the outside of the personal computer 1 is used instead of the image from the independent television function unit 22. May be. The external TV function unit is, for example, a TV function-equipped device having an HDMI terminal and mounting a TV function, specifically, an electronic device such as a TV, a smart TV, or a tablet.

  In this case, when the video from the TV application function unit 21 is displayed on the liquid crystal display device 32 by the TV application 15, the sleep management unit 16 performs the TV application function unit when the personal computer 1 shifts to the sleep mode. The video from 21 is switched to the video from the external TV function unit. Also in this case, the television application 15 is made resident in the memory 13.

  Also, video from the TV function-equipped device is transmitted and received as a packet storing the video via communication between the personal computer 1 and the TV function-equipped device via the HDMI terminal. Information other than video, such as screen switching information, channel information, video output information, and TV application resident information, is transmitted and received through communication between the personal computer 1 and the TV function-equipped device via the HDMI terminal.

  Further, a control unit other than the sleep management unit 16 may execute a video switching process. For example, instead of the sleep management unit 16, when the OS or an application that executes video switching different from the sleep management unit 16 displays the video from the TV application function unit 21 on the liquid crystal display device 32, When the personal computer 1 shifts to the sleep mode, the video from the TV application function unit 21 may be switched to the video from the independent TV function unit 22.

  3 and 4 are a TV image display processing flow in the personal computer.

  The user activates the personal computer 1 by depressing the power button of the personal computer 1 (step S1). Specifically, the system controller 11 executes the BIOS in response to pressing of the power button, thereby reading the OS stored in the HDD 14 into the memory 13 and executing the OS startup process. The activated OS sets the sleep timer 17 to a predetermined value SLP (step S2), reads the sleep management program stored in the HDD 14 via the system controller 11 into the memory 13, and reads the read sleep management program In other words, the sleep management unit 16 is activated.

  Thereafter, when the user depresses the TV viewing button by the TV application 15, the OS reads out the TV application 15 stored in the HDD 14 to the memory 13 via the system controller 11 and activates the read TV application 15. (Step S3). The activated TV application 15 controls the TV application function unit 21 to output the TV application tuner video of the TV application function unit 21 to the liquid crystal display device 32 via the scaler 31. The activated TV application 15 notifies the sleep management unit 16 that it has been activated.

  When receiving the notification that the TV application 15 is activated, the sleep management unit 16 cancels the prohibition of the transition to the sleep mode (step S4). Thereby, when the television application 15 is activated, the sleep management unit 16 can cancel the prohibition of the transition to the sleep mode and can shift to the sleep mode.

  The prohibition of transition to the sleep mode is set when the video from the TV application function unit 21 is being recorded, as will be described later. For example, when the TV application 15 activated last time records video, the sleep management unit 16 is set to prohibit the transition to the sleep mode. Therefore, the prohibition of the transition to the sleep mode is canceled with the next activation of the TV application 15 as a trigger.

  The sleep management unit 16 assigns “0” to the variable time T (step S5), and inquires of the television application 15 whether or not the television image is being recorded, for example, and obtains a response from the television application 15. Then, based on the acquired response, it is determined whether or not the TV video is being recorded (step S6). When a television image is being recorded (step S6, Yes), the sleep management unit 16 substitutes “0” for the time T (step S7), and repeats step S6. Thereby, when the video from the TV application function unit 21 is being recorded, the sleep management unit 16 can prohibit the transition to the sleep mode.

  When the TV image is not being recorded (No at Step S6), the sleep management unit 16 determines whether the user has operated the personal computer 1 by inquiring whether the user has operated the TV application 15, for example. It is determined whether or not (step S8). When the user performs an operation (step S8, Yes), the sleep management unit 16 substitutes “0” for the time T (step S9), and repeats step S6.

  When the user is not performing an operation (step S8, No), the sleep management unit 16 compares the value SLP of the sleep timer 17 with the time T to determine whether the value SLP of the sleep timer 17 is greater than or equal to the time T. It is determined whether or not (step S10). When the value SLP of the sleep timer 17 is greater than or equal to the time T (step S10, Yes), the sleep management unit 16 substitutes the value (T + 1) for the time T (step S11) and repeats step S6.

  When the value SLP of the sleep timer 17 is not equal to or greater than the time T (No at Step S10), the sleep management unit 16 does not input an instruction input by the user to the personal computer 1 for a predetermined period, and therefore shifts to the sleep mode. Decide and generate sleep timer information. Next, the sleep management unit 16 determines whether or not the personal computer 1 is equipped with an independent television function, in other words, whether or not the personal computer 1 includes the independent television function unit 22 (step S12). The sleep management unit 16 notifies the television application function unit 21 of the sleep timer information and the determination result.

  When the personal computer 1 is equipped with the independent television function (step S12, Yes), the television application function unit 21 takes over the channel information indicating the channel viewed by the television application 15 to the independent television function unit 22 (step S13). . The independent television function unit 22 that has inherited the channel information outputs the image of the independent television tuner of the independent television function unit 22 to the liquid crystal display device 32 via the scaler 31 (step S14).

  Specifically, when receiving the sleep timer information from the sleep management unit 16, the TV application function unit 21 sends channel information and screen switching information to the remote control microcomputer 41. The remote control microcomputer 41 sends the received channel information to the independent television function unit 22. Based on the received channel information, the independent television function unit 22 outputs an image of the same channel as the image channel of the television application function unit 21 that has been output so far. In addition, the remote control microcomputer 41 sends the received screen switching information to the scaler 31 of the video output control unit 30. Based on the received screen switching information, the scaler 31 switches the video of the TV application function unit 21 output so far to the video of the independent TV function unit 22. After that, the scaler 31 sends the video output information indicating that the video output at that time, in other words, the video of the independent TV function unit 22 is output, via the TV application 15. Send to. The sleep management unit 16 makes the TV application 15 stay resident in the memory 13 based on the received video output information.

  When the personal computer 1 does not have the independent TV function (No in step S12), the TV application function unit 21 takes over the information of the channel being viewed by the TV application 15 to the external TV function unit of the HDMI connected device. (Step S15). The external TV function unit that has inherited the channel information outputs the video of the external TV tuner of the external TV function unit (step S16), generates a packet of video output information based on the output video, and the generated packet is personalized. It transmits to the computer 1 (step S17).

  After step S14 and step S17, when receiving the video output information (step S18), the sleep management unit 16 makes the television application 15 resident in the memory 13 (step S19). Thereafter, the sleep management unit 16 shifts the personal computer 1 to the sleep mode (step S20).

  Thereafter, for example, the sleep management unit 16 inquires of the television application 15 residing on the memory 13 whether or not it is the start time of the reserved recording, acquires a response from the television application 15, and based on the acquired response Then, it is determined whether or not the reserved recording of the TV video is started (step S21). When the scheduled recording is not started (No at Step S21), the sleep management unit 16 ends the process.

  Actually, when the reserved recording is not started (No at Step S21), the sleep management unit 16 repeatedly executes Step S21 at a predetermined time interval. Accordingly, step S21 is repeatedly executed during the sleep mode.

  When the scheduled recording is started (step S21, Yes), the sleep management unit 16 returns the personal computer 1 from the sleep mode (step S22), starts processing by the TV application 15 (step S23), and at time T, “ “0” is substituted (step S24), and step S6 is repeated.

  Note that steps S15 to S17 may be omitted. In this case, step S12 is also omitted. Therefore, when the value SLP of the sleep timer 17 is not equal to or greater than the time T (No at Step S10), the sleep management unit 16 executes Step S13.

DESCRIPTION OF SYMBOLS 1 Personal computer 10 OS control part 20 Television control part 30 Image | video output control part 40 Microcomputer control part 11 System controller 12 CPU
13 Memory 14 HDD
DESCRIPTION OF SYMBOLS 15 Television application 16 Sleep management part 17 Sleep timer 21 Television application function part 22 Independent television function part 23 Television antenna part 31 Scaler 32 Liquid crystal display device 41 Remote control microcomputer 42 Remote control light-receiving part

Claims (8)

A TV application function unit that is controlled by a TV application operating on the OS and displays video on a display device;
An independent television function unit that displays video on a display device without activating the OS;
A memory for storing the OS and the television application;
In the case where the video from the TV application function unit is displayed on the display device by the TV application, when the information processing device shifts to the sleep mode, the video from the TV application function unit is transferred from the independent TV function unit. A video switching processing unit that switches to the video and makes the television application resident in the memory. When the video switching processing unit starts reserved recording, the information processing apparatus is returned from the sleep mode, and the video from the independent TV function unit is switched to the video from the TV application function unit. The information processing apparatus according to claim 1. The information processing apparatus according to claim 1, wherein the video switching processing unit prohibits transition to the sleep mode when video from the TV application function unit is being recorded. The information processing apparatus according to claim 1, wherein when the television application is activated, the video switching processing unit cancels prohibition of transition to the sleep mode. In the case where the video switching processing unit displays the video from the TV application function unit on the display device by the TV application, when the information processing device shifts to the sleep mode, the TV application function unit The video application is resident in the memory after receiving video output information indicating that the video has been switched to the video from the independent television function unit from the video control unit that controls the output of the video to the display device. The information processing apparatus according to claim 1. In the case where the video switching processing unit displays the video from the TV application function unit on the display device by the TV application, when the information processing device shifts to the sleep mode, the TV application function unit Instead of the video from the independent television function unit, the video from the external television function unit connected to the outside of the information processing apparatus is switched, and the television application is stored in the memory. The information processing apparatus according to claim 1. A TV application function unit that is controlled by a TV application running on the OS and displays video on a display device, an independent TV function unit that displays video on the display device without starting the OS, the OS, and the TV application A display control method for an information processing apparatus including a memory for storing
When the video switching processing unit is displaying the video from the TV application function unit on the display device by the TV application, the video from the TV application function unit is displayed when the information processing device shifts to the sleep mode. A display control method comprising switching to video from the independent television function unit and causing the television application to reside in the memory. A TV application function unit that is controlled by a TV application running on the OS and displays video on a display device, an independent TV function unit that displays video on the display device without starting the OS, the OS, and the TV application A display control program for controlling an information processing device including a memory for storing
On the computer,
In the case where the video from the TV application function unit is displayed on the display device by the TV application, when the information processing device shifts to the sleep mode, the video from the TV application function unit is transferred from the independent TV function unit. A display control program characterized by switching to the video and causing the television application to reside in the memory.

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