JP2001100871A - Personal computer having television receiving function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a personal computer(PC) capable of watching television using simple operation. SOLUTION: A PC 100 tunes a signal sent from an antenna 20 by operating a tuner through a television video display control part 102 and transmits that video to a display device 105. A control part 103 controls the television video display control part 102 and a general application 106 and outputs the resulted video and sound to the display device 105 and a speaker 111. It is discriminated by a keyboard connecting state discriminating means 110 as to whether a keyboard 10 is connected to the PC 100, and when the keyboard is not connected, television video is displayed. Also while the keyboard 10 and the main body 100 of PC are not connected, regardless of the position of a mode changeover switch 212 on a remote controller 200, the television video display control part 102 can be controlled by the remote controller 200.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal computer (hereinafter abbreviated as a personal computer) having a function of receiving a television broadcast and displaying it on a display device, and realizes television image display on the personal computer by an easy operation. It relates to control means.

[0002]

2. Description of the Related Art Recently, a television tuner has been built in,
Personal computers that can display television images on a display device when a cable from an antenna is connected to start an application for controlling a television tuner are on the market. In addition, there is a case where a dedicated remote control that can operate a TV function and perform operations such as channel switching can be used even from a place away from a personal computer. JP-A-10-124
No. 222 discloses a remote control that can operate a television, a video, and a personal computer by switching a mode switch.

[0003]

However, the above prior art has the following problems. When using a personal computer to watch a TV, it is necessary to turn on the personal computer, wait for the operating system to start, and then start the application software for controlling the TV tuner by operating the mouse or keyboard. It is troublesome, especially for those who are not familiar with the operation of a personal computer, and it is difficult to activate the application software only by operating the mouse or keyboard.

A dedicated remote control has a mode for operating a television function by a changeover switch on the remote control,
It has a mode for operating functions other than the television, and one button has a plurality of functions depending on the state of this switch. For this reason, when operating the television function, it is necessary to check the state of this switch each time, and if the operation is performed in the wrong mode, the personal computer may operate unexpectedly.

[0005] The present invention has been made in view of the above situation, and has as its object to provide a personal computer capable of watching television with a simple operation.

[0006]

Means for Solving the Problems (1): The present invention is a computer which requires at least two or more (including two) different input devices from a user (excluding an end / interrupt operation). System software (hereinafter referred to as "operating system") that enables execution of software (hereinafter referred to as "application software")
And a standard input device (hereinafter referred to as a “keyboard”.) In which all functions of all application software that can operate on a personal computer are enabled. A pointing device such as a mouse is both required), a key (button) subset of the standard input device, and 0 or more (there is no need to exist)
And a second input device (hereinafter, referred to as a "remote control") composed of keys (buttons) to which a combination of pressing a plurality of keys (buttons) of the standard input device is assigned. An application that has a function (selection / tune selection, etc.) of selecting and displaying at least one candidate from two or more selection candidates and outputting the same to a device such as display / audio, and enabling this function to be operated from the remote controller. Software (hereinafter referred to as "TV application")
And application software that is not in the category of the TV application (hereinafter referred to as “PC application”).
), Each of which includes a keyboard connection state determining means for detecting a connection state of the keyboard, wherein the keyboard and the personal computer main body are connected to each other. By turning on the power of the personal computer in a state where it is not in operation, even if there is no user operation, the T
It is characterized by executing a V application.

(2) In the personal computer of (1), a key input section, a mode changeover switch for switching an operation target, and information from the key input section are converted into a key code according to a state of the mode changeover switch. A key code generation table for associating, control means for generating a key code based on the information from the key input unit and the mode changeover switch and the contents of the key code generation table, and using the generated key code by infrared rays And a remote control having an infrared light emitting section for transmitting to the personal computer main body, an infrared light receiving section for receiving infrared light from the remote control, and connecting the keyboard to the personal computer main body. The remote control mode switch Regardless of location, in which characterized in that manipulate the television image display control unit in the remote control.

(3) In the personal computer of the above (1), when the connection between the keyboard and the main body of the personal computer is disconnected during use, a television image is displayed on the display device.

(4) In the personal computer of the above (1), when the keyboard is connected to the personal computer main body while the keyboard is detached from the personal computer main body and a television image is displayed, the display device is connected to the personal computer. This is characterized in that the display of a television image is turned off and a normal personal computer screen is displayed.

(5) In the personal computer of (3) or (4), display / non-display of the television image is not switched according to the connection state between the keyboard and the main body of the personal computer. It is characterized by switching between a state in which the size is displayed on the entire screen and a state in which the size is displayed in a small window.

(6) In the personal computer according to any one of the above (1) to (5), instead of detecting the connection state between the keyboard and the personal computer main body, a connection between a pointing device such as a mouse and the personal computer main body is made. It is characterized by detecting the state and operating the TV application or changing the setting of the remote control.

(7) In the personal computer according to any one of (1) to (6), a specific application is started / terminated and a display size is changed in place of the television image display control unit. It was done.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention basically provides a tuner for decoding a signal sent from an antenna, selects a channel by operating the tuner, and transmits the image to a display device of a personal computer. TV video display control unit for performing
A display device for displaying television images and general application images sent from the television image display control unit, a secondary storage device for storing programs and data, a television image display control unit and general applications Control means, and an infrared light receiving unit for receiving an infrared signal from a dedicated infrared remote control, and a speaker for outputting an audio signal output from a television image display control unit and a general application as sound,
A keyboard for the user to input keys, a keyboard connection state determining means for determining whether the keyboard is connected to the personal computer, and an infrared remote controller for the user to remotely control the personal computer. Consists of

The infrared remote controller includes a key input unit for receiving a user operation, a mode switching switch for switching between a mode for operating a television function and a mode for operating a general application, and the key input unit. A key code generation table for generating an appropriate key code from the input from the unit and the state of the mode changeover switch, a control means for generating the key code, and an infrared light receiving means for receiving the key code generated by the control means on the main body of the personal computer. And an infrared light emitting unit for transmitting infrared light to the unit.

(Embodiment 1) FIG. 1 is an external view of a personal computer and a remote controller to which the present invention is applied. FIG. 1 (A) shows a personal computer body, and the personal computer body 100 has a display device 1, a power switch 2, An infrared receiver 3, a keyboard cable connector 4, and the like are provided.
FIG. 1B to which the cable 11 is connected.
In the external view of the remote controller, the remote controller 200 includes operation buttons 210 (201 to 206), an infrared light emitting unit 211, and a mode switch 212.

FIG. 2 shows a personal computer body 100 according to the present invention.
And a block diagram showing a system configuration of the remote controller 200, a personal computer body 100 includes a tuner 101 that receives a signal from the antenna 20, a television image display control unit 102 that controls the tuner 101 and receives a selected television image, A secondary storage device 107 for storing programs and data; a memory 112 for temporarily storing various data; a general application 106 used for purposes other than watching a television; And a display device 105 for displaying an image of a general application 106, a speaker 111 for outputting sound, and a control unit 1 for controlling the television image display control unit 102 and the general application 106.
03, an infrared light receiving unit 104 for receiving a signal from the remote controller 200, a keyboard connection state determination unit 110 for determining the connection state of the keyboard 10, and a key code received from the remote control main body 200 as a key code for television. It has a normal key code → television key code conversion table 108 used for conversion, and a key code / process content correspondence table 109 for associating the key code received from the remote controller 200 with a specific process.
The remote control main body 200 includes a key input unit 210 for inputting a button operation and a mode switch 212 for switching between a television function operation mode and a normal mode.
A key code generation table 214 for determining a key code to be generated by a combination of an input from the key input unit 210 and a mode changeover switch 212; a control unit 213 for generating a key code;
And an infrared light emitting unit 211 that emits infrared light to transmit the key code generated in step (1) to the personal computer 100.

FIG. 3 is a flowchart showing the operation of the control means 103 of the personal computer for realizing the first to fourth aspects of the present invention. Now, when the personal computer 100 is turned on, the process S1
To connect the keyboard 1 to the keyboard 1
0, and it is determined whether or not the keyboard 10 is connected in step S2.
If is not connected, the television image display control unit 102 is activated in step S3, and the television image is projected on the entire surface of the display device 105. Thereafter, the monitoring of the keyboard connection state and the processing of the key code from the remote controller are repeatedly performed.

Specifically, in step S4, the connection state of the keyboard 10 is input from the keyboard connection state determination means 110, and in step S5, it is determined whether the keyboard 10 is connected. If connected (YES), the process transits to the process S10 in FIG. If it is not connected (NO), the flow goes to the process S6. In process S6, it is determined whether a key code has been received from remote controller 200. NO, that is, if not received, the process proceeds to step S4. If YES, the process transits to S7. In the process S7, the remote controller 20
The key code received from 0 is converted using the normal key code → TV key code conversion table 108. This is because the keyboard 10 is not connected at present, so that the mode switch 212
Mode switch 2 regardless of the position of
The key code generated when the mode changeover switch 212 is set to the PC side is set by the mode changeover switch 212 to the TV side so as to act as if the 12 is set to the TV side. This is a process of converting to a key code generated when the corresponding button is pressed. Subsequently, in step S8, the converted key code is referred to as the key code → processing content correspondence table 109 to obtain the operation target and the processing content. In process S9, the process is performed on the process target, and the process returns to process S6.

If YES in step S5, that is, if it is determined that the keyboard 10 has been removed, the process proceeds to step S10. In the process S10, the television video display control unit 102 determines whether or not the television video display control unit 102 is operating. Only when the television video display control unit 102 is operating, the operation of the television video display control unit 102 is terminated in the process S11, and the television video is deleted from the display device 105. Processing S3
In step S10, the television image display control unit 102 is activated even though the television image display control unit 102 is activated.
2 is operating or not, because the television image table control unit 102 can be activated and terminated by the user's operation, and thus the television image display control unit 102 is already terminated at the time of processing S10. This is because they may be doing so. Subsequently, the process proceeds to step S12, in which the monitoring of the keyboard connection state and the processing of the key code received from the remote controller are repeated. The repetition part, that is, the processing S12 to S16 is almost the same as the processing part executed when the keyboard 10 is not connected, that is, the processing S4 to S9, but is greatly different. That is, the key code conversion process performed in the process S7 is not performed. That is, the operation according to the setting of the mode changeover switch 212 of the remote controller 200 is performed. In particular,
In step S12, the connection state of the keyboard 10 is input from the keyboard connection state determination means 110, and in step S13, it is determined whether or not the keyboard 10 is connected. If YES, that is, if the keyboard 10 is still connected, the process proceeds to step S14. I do. In the process S14, it is determined whether or not a key code has been received from the remote controller 200. If YES, that is, if the key code has been received, the process refers to the key code / process content correspondence table 109 in the process S15 and corresponds to the key code received from the remote controller 200. The operation target and the processing content of the processing to be performed are obtained, and the processing is executed in processing S16,
Return to

In the case of NO at step S13, ie, the keyboard 1
When it is determined that 0 has been removed, the process proceeds to S17 in FIG. In step S17, it is determined whether or not the television image display control unit 102 is operating, and only when NO, that is, when the television image display control unit 102 is not operating, in step S18, the television image display control unit 102 is activated and the television image is displayed on the entire surface of the display device 105. . At this time,
If the general application 106 is running, the image is hidden under the television image, and the display device 10
No longer visible on 5 After that, the processing makes a transition to Step S4. As described above, the personal computer according to the first to fourth aspects can be realized.

FIG. 5 shows the contents of the key code generation table 214 of the remote controller 200. For example, "<"
When a button (201 in FIG. 1B) is pressed, the key code generated by the control means 213 is 1 if the mode switch 212 is set to the PC side, and 101 if the mode switch 212 is set to the TV side. Becomes

FIG. 6 shows the contents of the normal key code → television key code conversion table 108 of the personal computer 100. When the key code is converted using this table, for example, the input key code 1 is converted into 101. Similarly, the entered key code 102 is 1
02.

FIG. 7 shows the contents of the key code / processing content correspondence table 109 of the personal computer 100.
Upon receiving the key code of remote controller 200, control means 103 executes a corresponding process according to the table shown in FIG. For example, in the case of the key code 101, an instruction to switch to the previous channel is issued to the television image display control unit 102. If the operation target has not been activated, no processing is performed.

The television image display control section 102 starts the operation by loading the program in the secondary storage device 107 onto the memory 112 by the control means 103 and activating the program. When activated, the television image obtained from the tuner 101 is displayed on the entire screen of the display device 105. Therefore, the image of the general application 106 cannot be seen on the display device 105. However, a television image can be displayed in a small window display by a user's remote control operation or the like. In this case, images of the general application 106 can be viewed side by side at the same time.

In the remote controller 100 shown in FIG. 1B, when the mode changeover switch 212 is set to the TV side, the remote controller can be used for operating TV images.
When set on the PC side, it can be used for operating general applications and systems. For example, the mode switch 212 is set to the PC and the “<” button 20
When 1 is pressed, the key code “1” is generated by the key code generation table 214. This key code “1” is transmitted to the personal computer 100 by infrared rays, and the “operation when the“ ← ”key of the keyboard 10 is pressed” for the “general application” 106 according to the key code / processing content correspondence table 109. Is interpreted to mean

When the mode switch 212 is set to T
When the key is set to the V side and the same “<” button 201 is pressed, the key code “101” is generated by the key code generation table 214. This key code is interpreted by the key code / processing content correspondence table 109 to mean that the “television image display control unit” performs “switch to the previous channel”. As described above, the buttons 210 (201 to 206) of the remote controller 200 are formed such that one button has a different function by switching the mode switch 212.

FIGS. 8 and 9 show the operation flow of the control means of the personal computer for realizing the fifth aspect of the present invention.
The processing S38 is different from the flow shown in FIG.
39 have been added. That is, if the keyboard 10 is connected while the personal computer is used while the keyboard 10 is not connected, and the television image display control unit 102 is operating at that time, the television image is changed to a small window display in step S31. Make the images of other applications visible. Conversely, if it is detected that the keyboard 10 has been removed during use while the keyboard 10 is connected, it is determined in step S37 whether or not the television image display control unit 102 is operating. NO, that is, if not operating, the television image display control unit 102 is activated in step S38, and the television image is displayed on the full screen. If YES in the determination of the process S37, that is, if the television image display control unit 102 is operating, the television image is set to the full screen display state, and the image of the general application 106 is temporarily not displayed on the display device 105.

According to a sixth aspect of the invention, instead of detecting the connection state between the keyboard and the personal computer main body, the connection state between the pointing device such as a mouse and the personal computer main body is detected to operate the TV application, The setting of the remote controller is changed, and can be realized by replacing the keyboard with a pointing device in the description of the embodiments of the present invention.

[0029] The invention of claim 7 is the invention of claims 1 to 6.
In the embodiment of the invention, the television image display control unit is replaced with a specific application, the display of the television image is replaced with an image displayed by the specific application, and the display of “TV” of the mode switch of the remote control is replaced with the specific application. In the key code → processing content correspondence table of FIG. 7, key code 1 is replaced.
This can be realized by replacing the operation targets corresponding to 01 to 106 with the specific application and replacing the processing content with the processing content related to the specific application. In this case, needless to say, the tuner 101 and the antenna 20 are unnecessary in the block diagram of FIG.

A similar configuration can be realized by using a medium in which software for realizing the apparatus having the configuration described in the above-described embodiment is installed and used in a personal computer. For the connection between the keyboard and pointing device and the personal computer,
In addition to the cable connection shown in FIG. 1, a wireless connection using infrared rays or the like, or a form in which the personal computer and the personal computer are directly combined without using a cable are also assumed.

(Embodiment 2) FIG. 10 is a block diagram for explaining a second embodiment of the present invention. In the figure, 100 is a personal computer, 200 is a remote controller, 300 is a mouse, and , 121 is a system initialization unit, 122 is an operating system unit (application execution unit), 123 is an input information processing unit, 124 is a mouse connection state determination unit, 125 is an infrared light receiving unit, 126 is an application execution storage area, and 127 is a TV. An application storage area 128 is an application file storage area;
In the remote controller 200, reference numeral 211 denotes an infrared light emitting unit;
Reference numeral 0 denotes various buttons (operation buttons 201 to 206, a mode switching button 212, and the like). In the mouse 300, 311 denotes an infrared light emitting unit, and 312 denotes a mouse movement amount detection mechanism. Symbols A to C in the figure are Read / Wr
In the item data, A is an execution TV application name acquisition, B is application main memory development (execution processing), C is an execution application read,
ad are I / O signal / return value / delivery data, and signal a
Is a mouse disconnection notification, a signal b is mouse movement amount information, a signal b0 is mouse ID information, a signal c is input remote control button information, and a signal d is a TV application name.

In the following, using the block diagram of FIG.
The start-up process of the V application will be described. The system configuration of the personal computer in the present embodiment includes the above-described PC main body 100, the IR remote controller 200, the IR mouse 300, and other devices (not shown). And First, when the power of the personal computer 100 is turned on, the system initialization unit 121 operates.

FIG. 11 is a diagram showing an operation flow of the system initialization section 121. This processing section mainly performs a module for performing initialization processing (S41) of various devices provided in the personal computer main body 100. Then, the input information processing unit 1
A buffering routine for input information at 23 and a start-up process of the mouse connection state determination unit 124 are also performed. When the initialization of various devices is completed, check the connection of the first mouse,
This is performed by calling the mouse connection state detection routine of the input information processing unit 123 (S42, S43). If the mouse 300 is in the connected state, the process normally proceeds to the application execution unit 122, and the mouse 300 is disconnected. If there is, the process proceeds to the application execution unit 122 using the TV application name stored in the TV application name storage area 127 as an argument.

The input information processing unit 123 is composed of three modules (routines), and a buffering routine (FIG. 5) for buffering input data of various input devices (a mouse and a remote controller in this example). 12
(A)), a mouse connection state detection routine that returns the mouse connection state (FIG. 12B), and an input information acquisition routine that returns buffered input information (FIG. 12C).

FIG. 12A is a diagram showing the flow of the buffering routine. This module is started during the initialization processing of the system initialization unit 121 and continues to execute until the power is turned off. The variable Mset storing the connection state of 300 is cleared to 0 (not connected) (S52), the mouse connection state determination unit 124 for mouse input information, and the direct infrared light receiving unit 125 for remote control input information. The input information is constantly monitored (S53), and when the mouse non-connection detection signal a is input from the mouse connection state determination unit 124, the variable Mset is cleared to 0, that is, set to the non-connection state (S5).
4). Also, a signal b indicating that a mouse input (mouse movement amount) has occurred from the mouse connection state determination unit 124 is set to IN.
After the PUT, the variable Mset is set (mouse connection state) (S55), and the content of the signal b, that is, the mouse movement amount data is buffered in the input buffer (S56). Further, when a signal c indicating that a remote control input (remote control button No.) has been generated from the infrared light receiving unit 125 is input, the variable Mset processing is not performed, and the content of the signal c, that is, the remote control button No. Is buffered in the input buffer.

FIG. 12B is a flowchart showing the flow of a mouse connection state detection routine. This module is called by the system initialization unit 121 or the application execution unit 122, and the mouse is operated according to the contents of the variable Mset. This is a subroutine that returns whether or not the connection is established.

FIG. 12C is a diagram showing the flow of an input information acquisition routine. This module is called from the application execution unit 122 or various applications.
This is a subroutine for popping up input data buffered in the input buffer and returning the popped up data.

FIG. 13 is a diagram showing the flow of the mouse connection state determination unit 124. This module is started during the initialization processing of the system initialization unit 121 and continues to execute until the power is turned off. By monitoring the signal from the mouse notified from the infrared receiving unit 125 for the input information, the connection / non-connection state of the mouse and the management of the mouse movement amount information (input information processing unit 123
Notification). The processing unit 123 monitors whether data is transmitted from the mouse within a predetermined time to determine whether or not the mouse is not connected. The mouse does not receive any input (mouse movement). In this case, the mouse ID information (signal b0) is always transmitted at a fixed time interval (of course, an interval shorter than the predetermined time of this routine). There is a check method, but in the case of a wireless communication medium, the check is performed by a communication protocol process.

In this module, first, a timer for measuring a predetermined time is initialized (S81), and data (both signals of mouse ID information b0 and mouse movement amount information b) are transmitted from the mouse 300 until the predetermined time. It is checked whether or not it has been performed (S82, S83). Here, if the predetermined time has elapsed, a signal a indicating that the connection is not established is output to the input information processing unit 123 (S84). Conversely, mouse 30
If the data is transmitted from 0, it is checked whether the data indicates the mouse movement (S86), and if the data indicates the amount of mouse movement, the signal b is output to the input information processing unit 123 (S87). ).

FIG. 14 shows the application execution unit 122
In the figure, the processing unit 122 means an operating system (OS) in a current personal computer which is taken over and executed by the system initialization unit 121, but actually has a more complicated structure. . In the present embodiment, for the sake of simplicity, only points relating to the invention are described, and when the same is considered in the same manner as an actual OS (for example, the execution file name is given to the OS as an argument). There is no difference in the mechanism). In this processing unit 122, the TV application name is passed as an argument from the system initialization unit 121, and when the argument exists, the TV application is executed.
When there is no argument, the initial screen display process of the application execution unit 122 is normally executed. Accordingly, when the mouse at the time of activation is not connected, the TV application is displayed, and when the mouse is connected, the display processing of the application execution processing unit 122 is performed.

The application execution processing unit 122
It itself has a user interface, and a new or different application can be executed by mouse operation or remote control operation, and this is simply indicated by S99 and S100. Further, in the present processing unit, the unconnected information of the mouse (signal a) and the input information of the mouse (signal b) are always transmitted via the input information processing unit 123.
Is monitored, and the TV application is controlled (S93-
S96, S101 to S103).

[0042]

According to the present invention, when watching a television broadcast on a personal computer having a television receiving function, it is possible to display television images simply by turning on the personal computer with the keyboard removed. Since there is no need to use a keyboard or mouse to start a program for displaying television images, it is possible to save time and effort. Also, even a person who is not good at operating a personal computer can easily watch a television.
For example, if you have a personal computer with a TV reception function in your living room, the whole family (including those who are not good at operating a computer) usually use it for watching TV,
A specific person at home (person who is familiar with how to operate a computer)
This is especially effective when using other application software.

Further, according to the present invention, when operating a television function such as channel switching with the remote controller while watching the television with the keyboard removed, the mode switching switch is set to a setting other than the television to set the remote controller. Even if the button is pressed, the PC performs the same processing as when the mode switch is set for TV, so the user can operate the TV function without worrying about the position of the mode switch on the remote control. can do. This saves labor for operating the mode changeover switch. Further, when the remote control is operated to operate the TV function without inadvertently setting the mode switch to the setting for the TV, it is possible to avoid the danger of the personal computer performing unexpected operation of the user.

Further, according to the present invention, when the user wants to watch the television, the keyboard is unnecessary and it can be a hindrance. Therefore, the keyboard is removed from the personal computer and placed in another place. If you want to do so, simply connect the keyboard again and it will be a very natural operation, so you can switch between showing and hiding TV images,
It does not take time and effort.

Further, according to the present invention, when the keyboard is removed, the television image is displayed on the full screen, and when the keyboard is connected, the television image is displayed in a small window. And it is easy to switch when a television image is displayed in a small window and another application is to be used.

According to the present invention, even if the keyboard is of a wireless type and the connection state cannot be detected, or even if the keyboard cannot be removed, the presence or absence of the keyboard connection is not detected. By detecting the presence or absence of the connection of a pointing device such as a mouse, the above-described personal computer can be realized, and the same effect as described above can be enjoyed.

Further, according to the present invention, it is possible to detect the connection state of a keyboard or a pointing device, such as controlling the start, end and display size of an arbitrary application, and changing the operation target by a remote controller which has been manually performed conventionally. , The operation of the user becomes easy.

[Brief description of the drawings]

FIG. 1 is an external view of a personal computer and a remote controller according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a system configuration of a personal computer and a remote controller according to an embodiment of the present invention.

FIG. 3 is a part of an operation flow of a control unit of the personal computer according to the embodiment of the present invention.

FIG. 4 is the remaining part of the operation flow shown in FIG. 3;

FIG. 5 is a diagram showing contents of a key code generation table of the remote controller according to the embodiment of the present invention.

FIG. 6 is a diagram showing contents of a normal key code → TV key code conversion table of a personal computer according to an embodiment of the present invention.

FIG. 7 is a diagram showing the contents of a key code / processing content correspondence table of a personal computer according to an embodiment of the present invention.

FIG. 8 is a part of an operation flow of a control means of a personal computer for realizing another embodiment of the present invention.

FIG. 9 is the remaining part of the operation flow shown in FIG. 8;

FIG. 10 is a diagram relating to a TV application activation process using a block diagram according to another embodiment of the present invention.

FIG. 11 is a flowchart of an initialization unit according to another embodiment of the present invention.

FIG. 12 is a flowchart of a buffering routine according to another embodiment of the present invention.

FIG. 13 is a flowchart of a mouse connection state determination unit according to another embodiment of the present invention.

FIG. 14 is a flowchart of an application execution unit according to another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Display apparatus, 2 ... Power switch, 3 ... Infrared light receiving part,
4 ... keyboard cable connector, 10 ... keyboard, 11 ... keyboard cable, 20 ... antenna, 10
0: PC body, 101: Tuner, 102: TV image display control unit, 103: Control means, 104: Infrared light receiving unit, 105: Display device, 106: General application, 107: Secondary storage device, 108: Normal key Code to TV key code conversion table, 109: Key code / processing content correspondence table, 110: Keyboard connection state determination means, 200: Remote control, 210: Key input unit,
211: infrared light emitting unit, 212: mode changeover switch, 213: control means, 214: key code generation table.

Claims (7)

[Claims] 1. A system software (hereinafter, application software) capable of executing computer software (hereinafter, application software) that requires an operation (excluding an end operation and an interruption operation) from at least two different users on an input device. Operating system) and a standard input device (hereinafter, referred to as a standard input device) that specifies that all function operations of all application software that can operate on a personal computer can be completely performed.
A keyboard, but in a Windows system, both a keyboard and a pointing device such as a mouse), a key (button) subset of the standard input device, and a plurality of zero or more (not necessarily present) standard input devices. A second input device (hereinafter referred to as a remote controller) composed of keys (buttons) to which key (button) pressing combinations are assigned; and at least one of two or more selection candidates. Application software (hereafter referred to as TV) that has a function (selection / tune selection, etc.) of selecting and displaying a candidate for display / audio, etc., and enabling operation of this function from the remote control.
Application) and application software that does not fall under the category of the TV application (hereinafter referred to as PC application).
A personal computer system comprising at least one personal computer system, comprising keyboard connection state determination means for detecting a connection state of the keyboard, wherein the personal computer body is not connected to the keyboard. A personal computer which executes the TV application even when there is no user operation when the power is turned on. 2. The personal computer according to claim 1, wherein a key input unit, a mode switch for switching an operation target, and information from the key input unit are associated with a key code by a state of the mode switch. A key code generation table, control means for generating a key code based on the information from the key input unit and the mode changeover switch and the contents of the key code generation table, and a personal computer using infrared rays to generate the key code. A state in which a remote control having an infrared light emitting section for transmitting to the computer main body is attached, an infrared light receiving section for receiving infrared light from the remote control is provided, and the keyboard and the personal computer main body are not connected. Now, it depends on the position of the mode switch of the remote control. Personal computer, wherein the remote control can operate the television image display control unit. 3. The personal computer according to claim 1, wherein a television image is displayed on a display device when the keyboard is disconnected from the personal computer during use. 4. The personal computer according to claim 1, wherein the keyboard is connected to the personal computer when the keyboard is detached from the personal computer and the television image is displayed. A personal computer characterized by turning off the display and displaying a normal personal computer screen. 5. The personal computer according to claim 3, wherein the size of the television image to be displayed is changed over the entire screen instead of switching between display and non-display of the television image according to the connection state of the keyboard and the personal computer main body. A personal computer that switches between a state in which the image is displayed in a small window and a state in which the image is displayed in a small window. 6. The personal computer according to claim 1, wherein, instead of detecting a connection state between the keyboard and the personal computer main body, a connection state between a pointing device such as a mouse and the personal computer main body is detected. A personal computer that operates a TV application and changes settings of a remote controller. 7. The personal computer according to claim 1, wherein a start / end of a specific application and an operation of changing a display size are performed in place of the television image display control unit.