JPH09292867A - Display control device, display device for television, image processing device, and controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set the structure of a display screen of a TV by selecting the signal for displaying TV among plural display signals to be input and the display signals of a personal computer, and synthesizing as the display signal of one frame. SOLUTION: PC display data of R, G, B and the display signal input from outside are transferred to a separating circuit 302. The display signal is divided into the image data and the sound data. The image data and the sound data of the PC display data are transferred to an image controller 307 and a sound switch 313, and the image data of the display signal input from the outside is transferred to a digital circuit 305. The image controller 307 selects the digital image data of the display signal, which is selected as a main image and a sub image among digital image data transferred on the basis of the image selecting signal transferred from a CPU, and performs the synchronous synthetic control of each digital image data on the basis of the display control signal, which is similarly transferred, and generates the digital display data corresponding to one frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to display control of an information processing device.

[0002]

2. Description of the Related Art Conventionally, a TV signal control system for simultaneously displaying a television image and an image of a personal computer (hereinafter referred to as a PC) on a television is described in, for example, "Latest PC Technology System" P163 to P170 (Nikkei PB). There is a system described. Therefore, a conventional TV signal control system will be described with reference to FIG.

FIG. 27 is a block diagram of a conventional television signal control system. In FIG. 27, 2701 is a television (hereinafter referred to as TV) which is an NTSC signal or a data bus for transferring a video signal. 2702 is a PC, and 2703
Is a video capture board. A data bus 2704 transfers the digital display signal converted by the video capture board 2703. 2705 is a display controller, and 2706 is a display controller 2705.
This is a data bus for transferring the analog display signal converted by. 2707 is a CRT, 2708 is a CRT 27
It is a PC screen displayed on the whole 07 screen.
A TV (video) screen 9 is displayed in a window on the PC screen 2708.

A TV (video) signal which is an NTSC signal is transferred to a video capture board 2703 provided in the PC 2702 via a data bus 2701. The video capture board 2703 converts TV (video) signals into digital signals that can be processed by the PC 2702. Furthermore, digital display data for one screen of the CRT 2707 is combined so that a TV (video) screen is displayed in a window on the PC screen, and the data bus 270 is used.
4 to the display controller 2705. The display controller 2705 converts the transferred digital display signal into analog display data suitable for the interface of the CRT 2707, and the C data via the data bus 2706.
Transfer to RT2707. A PC screen 2708 is displayed on the entire screen of the CRT 2707 according to the transferred analog display data, and a TV (video) screen 2709 is displayed in a window on the PC screen 2708. Here, when a TV is used as the display device instead of the CRT 2707, the analog display data is converted into an NTSC signal by using a signal conversion device or the like for display.

[0005]

In the conventional TV signal control system, when the image of the TV signal and the image of the display signal of the PC are simultaneously displayed on the TV, a video capture / display system is used.
The TV screen is controlled and displayed on the PC screen through a control device such as a board. Therefore, conventionally, the PC screen cannot be displayed on the TV screen. Also, TV (video) signals,
It has been impossible to input a plurality of display signals, which are analog signals or digital signals, other than the PC display signal, and display the signal to be displayed on the TV with an arbitrary display screen configuration.

[0006]

According to the present invention, in order to solve the problems, a PC performs display control by arbitrarily combining various kinds of display signals such as analog signals and digital signals and displaying them on a TV. It was to be. Therefore, the user can freely select one or more signals to be displayed on the TV and a display screen configuration thereof from a plurality of display signals including a TV signal input from the outside to the PC and the display signals of the PC. A function that can be set is provided, and a signal to be displayed on the TV is selected from a plurality of display signals input from the outside and a display signal of the PC according to the user's selection and setting, and combined as a display signal for one screen. I decided to provide a controller with the function to do.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a block diagram of a television display control system of the present invention. Reference numeral 101 denotes a data bus, which includes a plurality of data buses. 102 is a PC. 103
Reference numerals -1 and 103-2 are a data bus and a signal bus for transferring digital display data and control signals that are combined and generated by the PC 102, respectively. 104 is a signal conversion circuit,
Reference numeral 05 denotes a bus for transferring the display signal and the synchronizing signal converted and generated by the signal conversion circuit 105. 106 is a TV, 107 is a main screen that is constantly displayed on the entire surface of the TV 106, and 108 is a sub-screen that is composited and displayed on the main screen 107.

FIG. 2 is a block diagram of the PC 102 and the TV 106 in the television display control system of the present invention.
201 is a CPU, and 202 is a system memory. Reference numeral 203 is a display memory controller, and reference numeral 204 is a display memory for storing PC display data of R, G, B which is data of a PC display signal. A system bus 205 transfers addresses, control signals, and data. 20
6 to 209 are CPU 201 and system memory 20 respectively
2, display memory controller 203, display memory 204
Is a bus for transferring addresses, control signals, and data.
Reference numeral 210 is a bus for transferring the memory control signal generated by the display memory controller 203 and the PC display data.
Reference numeral 211 is a data bus for transferring PC display data.
Reference numeral 212 denotes a controller, which controls display of a display signal transferred to the TV 106. 213 is a controller 212
Is a bus for transferring address and control signals. Reference numeral 214 denotes a data bus for transferring digital display data selected and combined from various kinds of display signals and PC display signals input by the controller 212 via the bus 101. 215
Is a signal conversion circuit, and 216 is a bus for transferring the display signal and the synchronization signal converted and generated by the signal conversion circuit 215. A TV power supply circuit 217 controls ON / OFF of the power supply of the TV 106. Reference numerals 218 and 219 are signal lines for transferring a television power control signal and a television power status signal, respectively. Here, the data bus 214 and the signal conversion circuit 21
5, the bus 219 is the data bus 103 shown in FIG.
-1, the same as the signal conversion circuit 104 and the bus 105,
The signal lines 218 and 219 form a signal bus 103-2.

FIG. 3 is a block diagram of the controller 203. 301-1 and 301-2 to 301-4 are
A data bus for transferring PC display data and a plurality of types of display signals input from the outside, and a data bus 101 for transferring the display signals and PC display data shown in FIGS.
211 is configured. A separation circuit 302 separates the display signal into image data and audio data. 303-1 to 3
03-4 and 304-1 to 304-4 are separation circuits 3
A data bus for transferring the image data and audio data separated by 02. A digitizing circuit 305 converts the image data into digital image data. Data buses 306-2 to 306-4 transfer digital image data. An image control circuit 307 selects and combines digital image data according to the user's selection. 3
Reference numeral 08 is a bus for transferring an image selection signal for controlling selection of digital image data and a display control signal for controlling data synchronous synthesis, which are transferred from the CPU 201 via the bus 213. Image control circuits 307 and 309, respectively.
2 is a data bus and a signal bus for transferring the digital display data for one frame synthesized and generated in step 1, and the memory write control signal and the memory read control signal. 311
Is a memory for storing one frame of digital display data, and 310 is a data bus for transferring one frame of digital display data stored in the memory 311. 313 is a voice switch, and 314 is the CPU 2
01 is a signal bus for transferring a voice selection signal for controlling the voice switch 313, which is transferred from 01 via the bus 213. Reference numeral 315 is a data bus for transferring the audio data selected by the audio switch 313, and 316 is an audio output circuit. Reference numeral 317 is a signal bus for transferring an audio control signal for controlling the audio output circuit 316 transferred from the CPU 201 via the bus 213, and reference numeral 318 is a data bus for transferring output audio data. Data bus 312, 3
18 constitutes the data bus 214 shown in FIG. 31
Reference numeral 9 is a TV power supply control circuit, and 320 is a CPU 201.
Is a signal bus for transferring a power supply control signal for controlling the TV power supply control circuit 319, which is transferred from the device via the bus 213. Reference numerals 321 and 322 denote TV power supply control circuits 319, respectively.
It is a signal line for transferring the TV power supply control signal and the TV status signal generated in 1. Here, the signal lines 321 and 322 are the same as the signal lines 218 and 219 shown in FIG.

FIG. 4 is a flowchart of display control performed by the controller 212.

FIG. 5 is a flow chart of display selection control when a display signal is selected by the mode setting function.

FIG. 6 is a display area change control flowchart for changing and setting the size and position of the sub-screen display area by the mode setting function.

FIG. 7 is a voice selection control flowchart for changing and setting the voice to be output and the voice output destination by the mode setting function.

FIG. 8 is a flow chart of a display selection control of a system in which a display signal of a voice to be output and a voice output destination are selected and set at the same time when the display is selected.

FIG. 9 is a display selection control flowchart of a method of setting the display area size and position of the sub-screen at the same time as the display selection.

FIG. 10 is a display selection control flow chart of a system for selectively setting the display signal of the audio to be output, the audio output destination, the display area size and the position of the sub-screen simultaneously with the display selection.

FIG. 11 is a security mode setting flow chart in the case where warning control is performed when the abnormality is detected in the home security system by the mode setting function and the warning control when the power of the TV 106 is off is performed only by the PC 102. Is.

FIG. 12 is a warning control flowchart for the case shown in FIG.

FIG. 13 shows a warning control when the power of the TV 106 is off.
6 is a security mode setting flow chart in the case of performing at 106.

FIG. 14 is a warning control flowchart for the case shown in FIG.

In this embodiment, the controller 212
The number of display signals to be input to is 4 and the display signals are, for example, a television signal, a video signal, PC display data, and
An image signal of a security camera used in a home security system (hereinafter referred to as a camera signal).
Further, in the camera signal, a warning signal described later is input together with the display signal. Further, each display signal to be inputted may be either an analog signal or a digital signal.

First, the configuration of the television display control system of the present invention will be described with reference to FIG.

The television display control system of the present invention is a PC
102, the signal conversion circuit 104, and the TV 106.
The data bus 101 is composed of a plurality of data buses each transferring a display signal which is an analog signal or a digital signal. The input side of each data bus is connected to a connector (not shown) for inputting a display signal from the outside.
Multiple display signals input from the outside are output from each connector.
The data is input to the PC 102 via the corresponding data bus of the data bus 101. The PC 102 performs display control and audio control of the display signal of the PC 102 and a display signal input from the outside on the TV 106, and power control of the TV 106. Further, the PC 102 has a mode setting function, and the user selects a display signal to be displayed on the TV 106 (display selection mode), a display signal of an audio to be output and an output destination thereof (audio selection mode), and a sub-display. Setting the display area of the screen 108 (display area change mode),
It is possible to select a warning control method (security mode) that is performed when an abnormality is detected in the home security system. The screen of the TV 106 is composed of a main screen 107 which is always displayed on the entire screen and a sub screen 108 which is displayed at an appropriate position on the main screen 107. The user can arbitrarily select the main screen 107 and the sub screen 108 by using the mode setting function. As the sub-screen 108, a plurality of display signals can be selected, and the display area position and size can be changed by the mode setting function. Similarly, the user can select the display signal of the voice to be output and the output destination of the voice by the mode setting function. As an audio output destination, the TV 106
Speaker, headphone jack, and the like.
The PC 102 controls the display of the TV 106 as follows. The PC 102 selects a signal to be displayed on the main screen 107 and the sub screen 108 of the TV 106 from among a plurality of types of display signals input from the outside via the data bus 101 and the PC display signal according to the user's selection and setting. The digital display data is combined and transferred to the signal conversion circuit 104 via the data bus 103-1. Signal conversion circuit 10
Reference numeral 4 converts the digital display data into a display signal suitable for the interface of the TV 106, generates a synchronization signal required for display control of the TV 106, and transmits the T signal via the bus 105.
Transfer to V106. At the same time, according to the user's selection and setting, the display signal to output the sound is selected, converted to be suitable for the selected output destination interface, and transferred via the data bus 103-1. This operation will be described in detail with reference to FIG.

As shown in FIG. 2, the PC 102 is a CPU
201, a system memory 202, a display memory controller 203, a display memory 204, a system bus 205, and a controller 212 that controls the display of the TV 106. The CPU 201, according to the user's selection and setting,
From the system bus 205 to the bus 213, the TV 10
6, an image selection signal for selecting a display signal to be displayed on each of the main screen 107 and the sub screen 108, a display control signal for controlling data synchronization and synthesis, and a voice selection signal and a voice for selecting a display signal for outputting a voice. The voice control signal for converting the data so as to be suitable for the output destination interface and outputting the converted data is transferred to the controller 212. The display memory controller 203 generates a display memory control signal, transfers it to the display memory 204 via the bus 210, and reads out the stored R, G, B PC display data. The read PC display data is transferred to the display memory controller 203 via the bus 210. Next, the display memory controller 203 converts the PC display data so as to be suitable for the interface of the controller 212, and transfers the PC display data to the controller 212 via the data bus 211. The controller 212 selects a display signal to be used for display from the display signal and the PC display data externally transferred via the data bus 101 according to the image selection signal and the display control signal transferred via the bus 213, and the TV 106 The digital display data to be displayed in
14 to the signal conversion circuit 215. The transferred digital display data is transferred to the TV by the signal conversion circuit 215.
It is converted into a display signal suitable for the interface of 106. If the TV 106 is an NTSC input, the signal conversion circuit 215 converts the digital display data into an NTSC signal,
If it is an analog RGB input, it is converted into an analog signal and output as a display signal via the bus 216. In addition, TV
If 106 is a digital input, conversion is not performed and the transferred digital display data is output as a display signal via the bus 216. At the same time, the signal conversion circuit 215 causes the TV 1
The sync signal necessary for the display control of 06 is generated and transferred to the TV 106 via the bus 216 in the same manner. At the same time, the controller 212 selects a display signal for outputting audio according to the audio selection signal and the audio control signal transferred via the bus 213, and outputs the audio data to the output destination selected via the data bus 214. To transfer. Next, PC1
02 to control the power supply of the TV 106, the CPU 201
Transfers a TV switching signal instructing the power switching of the TV 106 to the controller 212 via the bus 213.
At the same time, the TV power supply circuit 217 generates a TV status signal to transfer the power on / off status of the TV 106, and transfers the TV status signal to the controller 212 via the signal line 219. The controller 212 generates a TV power supply control signal for switching the power supply of the TV 106 according to the TV switching signal and the TV status signal, and transfers the TV power supply control signal to the TV power supply circuit 217 via the signal line 218. The TV power supply circuit 217 performs power supply control according to the power supply control signal transferred via the TV signal line 218, in addition to the normal power supply control of the TV 106. This operation will be described in detail with reference to the controller block diagram shown in FIG.

As shown in FIG. 3, the R, G, and B PC display data and the display signal input from the outside are separated by the separation circuit 302 via the data buses 301-1 and 301-2 to 301-4, respectively. Transferred to. Here, in this embodiment, as described above, the display signals input from the outside are the television signal, the video signal, and the camera signal. Separation circuit 302
Then, the display signal is separated into image data and audio data. Of the separated data, the image data of the PC display data and the audio data are respectively associated with the corresponding data bus 303.
-1 and 304-1 to 304-4 to the image controller 307 and the voice switch 313. Of the separated data, the image data of the display signal input from the outside is the data buses 303-2 to 303-4.
Is transferred to the digitizing circuit 305 via. The digitization circuit 305 performs demodulation and A / D conversion when the input image data is an NTSC signal, and only performs A / D conversion when the input image data is an analog signal, and the corresponding data bus as digital image data. 306-2 to 306-4
To the image controller 307 via. If the image data is a digital signal, no conversion is performed, and the corresponding data buses 306-2 to 306-4 are used to
It is transferred to the image controller 307 as digital image data. The image controller 307 is the CPU shown in FIG.
In accordance with the image selection signal transferred from the signal bus 201 via the signal bus 308, the main screen 107 and the sub screen 108 are selected from the digital image data transferred via the data buses 303-1 and 306-2 to 306-4. The digital image data of the displayed display signal is selected. Next, the image controller 307 similarly outputs the signal bus 308.
In accordance with the display control signal transferred via, the digital image data for one frame is generated by synchronously synthesizing and controlling each digital image data. As the synchronous synthesis control, for example, in the first frame, the digital image data of the display signal selected on the main screen 107 is output to be stored in the memory 311, and the sub-screen 1 is output for each subsequent frame.
There is a method in which the digital image data selected in 08 is subjected to conversion such as compression so as to have a set configuration and is written in the memory 311. Further, as another control method, there is also a method in which the image controller 309 includes a frame memory and performs synchronous control and synthesis control by synchronously reading digital image data of each display signal. If each display signal and the TV 106 have different resolutions, control such as data compression is performed so that the digital image data and the TV 106 have the same resolution. The generated digital display data for one frame is stored in the data bus 3
09 to the memory 311. At the same time, the image controller 307 generates a memory write control signal and a memory read control signal for controlling the memory 311.
Transfer to the memory 311 via the signal bus 310. Digital display data for one frame is written in the memory 311 according to the memory write control signal. next,
1 from the memory 311 according to the memory read control signal
Digital display data for a frame is read and transferred to the signal conversion circuit 215 shown in FIG. 2 via the data bus 312. As described with reference to FIG. 2, the signal conversion circuit 215 converts the digital display data into a display signal suitable for the interface of the TV 106, and the combined screen is displayed on the TV 106. Also, the voice switch 313
Selects the audio data of the display signal selected as the output audio according to the audio selection signal transferred from the CPU 201 via the signal bus 312 shown in FIG. 2, and transfers it to the audio output circuit 316 via the data bus 315. To do. The audio output circuit 316 converts the audio data so as to be suitable for the selected output destination interface in accordance with the audio control signal transferred via the signal bus 317, and synchronizes with the digital display data via the data bus 318. Output to the output destination. Next, when the power supply of the TV 106 is controlled by the PC 102, the CPU 201 is controlled via the signal bus 320.
The TV switching signal is transferred from. TV power supply control circuit 31
9 uses the TV switching signal and the TV status signal transferred via the signal line 322 to generate a TV power supply control signal for controlling the power supply of the TV 106. The generated TV power supply control signal is transferred to the TV power supply circuit 217 via the signal line 321.

Next, display control performed by the controller 212 will be described using an example of a display control flowchart shown in FIG.

As shown in FIG. 4, when a display signal is input, it is separated into image data and audio data. Next, from the separated image data, the image data of the display signal selected as the main screen and the sub screen is selected,
It is combined as display data for one screen. The combined display data is once written in the memory, then read by the controller and displayed on the TV 106. At the same time, the audio data of the display signal selected as the audio output is selected, and similarly converted to data suitable for the selected output destination and output.

Next, the mode setting function, which is one of the functions of this embodiment, will be described.

In this embodiment, the TV signal is the main screen 107 in the initial state when the TV power is turned on.
And the sub-screen 108 is in a non-selected state. As for audio, control is performed so that the audio of the display signal selected on the main screen 107 is output to the speaker of the TV 106. Therefore, in the initial state, TV1
Only the main screen on which the TV signal is displayed is displayed on the screen 06, and the sound of the TV signal is output from the speaker of the TV 106. When the user makes display selection settings and there is a sub-screen display, the sub-screen 108 is displayed at a fixed position on the main screen 107 in a fixed size.

The mode setting function, as described above,
Display signal selection (display selection mode), output voice and output destination selection (voice selection mode), sub-screen display area size and position change (display area change mode), and a home security system described later There is a warning control method setting (security mode), which the user can freely select and set. Therefore, each mode setting function will be described next with reference to FIGS. 5 to 7.

First, the display selection mode will be described with reference to the flowchart shown in FIG. In this embodiment, since the number of input display signals is 4, it is possible to select a maximum of 3 signals as the sub screen, excluding the signals displayed on the main screen.

When the display signal is selected, if the display selection mode is instructed in the mode setting waiting state which is the initial state at the time of mode setting, the display selection state is set. If a cancel instruction is given here, the process returns to the mode setting waiting state. In the display selection state, the main screen is first selected, and the main screen can be selected. When the main screen is selected in this state and the end of setting is instructed, the selection is confirmed and the sub screen selection state is entered. At this time, if a reset instruction is given, the state returns to the main screen selection state again. next,
When the sub screen is selected and the end of setting is instructed, the setting is confirmed. At this time, if a reset instruction is given, the state returns to the sub screen selection state again. Next, when the end of mode setting (“end” in the figure) is instructed, the display selection mode ends, and the display control described with reference to FIG. 4 is performed. Also, if you want to display only the main screen, you can set it by selecting non-selection in the sub-screen selection.

Next, the control of the display area changing mode will be described with reference to the control flow chart shown in FIG.

When the display area is instructed to be changed in the mode setting waiting state, the size is changed. At this time, if cancellation is instructed, the mode setting wait state is restored. When the display area size is enlarged or reduced in the size change state and the setting end is instructed, the size change is confirmed and the position change state is set. At this time, if a reset is instructed, the size change state is restored again. If the size is not changed, the position is changed by instructing non-selection in the size changed state. Next, the position of the display area is changed in the position change state, and when the end of setting is instructed, the position change is confirmed. At this time, if the reset is instructed, the mode is returned to the position change mode again. If the size is not changed, the non-selection is instructed in the position change state, and the change is confirmed without being changed. Next, the mode setting is completed ("End" in the figure)
Command, the display area change mode ends, size and position change control is performed, changed display data is written in the memory, and a new screen is displayed.

Next, the voice selection mode will be described with reference to the control flowchart shown in FIG.

When voice selection is instructed in the mode setting waiting state, the output voice is selected. At this time, if cancellation is instructed, the mode setting wait state is restored. In the output voice selection state, when the display signal to output the voice is selected and the setting end is instructed, the selection is confirmed and the output destination selection state is set. At this time, if a reset instruction is given, the state returns to the output voice selection state again. Next, when the output destination is selected in the output destination selection state and the end of setting is instructed, the selection is confirmed. This time,
When the reset is instructed, the state returns to the output destination selection state again. Next, when the end of mode setting (“end” in the figure) is instructed, the voice selection mode ends, voice output control is performed, and the state returns to the mode setting instruction waiting state.

As described above, by providing the mode setting function of selecting and setting the display signal to be displayed, the display screen configuration, the display signal to be output as voice and its output destination, the user can freely select the display signal and set the screen configuration. Can be performed and the usability is improved.

In the display selection mode described with reference to FIG. 5, only the display selection is performed. However, as another method, a mode setting method in which voice selection or display area change control is performed simultaneously with the display selection is also given. To be Therefore, next, a mode setting method in which voice selection control is performed simultaneously with display selection will be described using the display selection control flowchart shown in FIG.

The display selection is performed in the same manner as the display selection mode described above with reference to FIG. When the sub-screen selection is completed in the display selection mode, next, the voice selection mode is entered.
At this time, if voice selection is not performed, the end of mode setting (“end” in the figure) is instructed. In this case, the mode setting waiting state is returned to and the sound of the display signal selected on the main screen is output to the TV speaker. To select voice,
Selection setting is performed in the same manner as the voice selection mode described with reference to FIG.

Next, a mode setting method for changing the display area simultaneously with the display selection will be described with reference to the display selection control flowchart shown in FIG.

The display selection is performed in the same manner as the display selection mode described above with reference to FIG. When the sub screen selection setting is completed in the display selection mode, next, the display area change mode is set. At this time, when the display area is not changed, the mode setting end (“end” in the figure) is instructed. in this case,
The sub screen is displayed in the fixed position and the fixed size in the initial state. When changing the display area, the change setting is performed in the same manner as the display area changing mode described with reference to FIG. Also, in the display selection mode, without selecting the sub screen,
When only the main screen is displayed, the display area changing mode is not entered but the mode setting waiting state is entered.

Next, a mode setting method for performing voice selection and display area change simultaneously with display selection will be described with reference to the display selection control flowchart shown in FIG.

The display selection is performed in the same manner as the display selection mode described above with reference to FIG. When the display selection is completed, the display area change mode is entered next. At this time, if you do not change the display area, it will be in the voice selection mode,
The sub screen is displayed in the fixed position and the fixed size in the initial state. When changing the display area, the change setting is performed in the same manner as the display area changing mode described with reference to FIG. When the display area changing mode is finished, the voice selecting mode is set. In the display selection mode, when the sub screen is not selected and only the main screen is displayed, the output destination selection mode is set. When voice selection is not performed, the end of mode setting (“end” in the figure) is instructed. In this case, the display control described with reference to FIG. 4 is performed, and the sound of the display signal selected on the main screen is output to the TV speaker. When performing voice selection, selection setting is performed in the same manner as the voice selection mode described with reference to FIG.

Next, warning control when an abnormality is detected in the home security system will be described with reference to FIGS. 2 and 11 to 14.

First, the home security system will be described with reference to FIG.

When an abnormality is detected in the home security system, a warning signal that conveys the abnormality is generated. The generated warning signal is transferred to the controller 212 together with the camera signal via the corresponding data bus of the data bus 101 to which the camera signal is transferred. When the warning signal is input, the controller 212 performs warning control to notify the user of the abnormality.

In this embodiment, the TV 10 is used for warning control.
6 the warning operation not displaying the camera signal and the TV 10
Either of the forced display of the camera signal (6) (sub screen) on 6 is performed. With regard to these warning operation and forced display, the user can select either the warning operation mode or the forced display mode depending on whether the power supply of the TV 106 is on or off, depending on the security mode setting. . Further, when accompanied by power control of the TV 106, it has a timer function for automatically turning on / off the TV power, and the user can set the timer in the security mode setting. The warning operation includes an audible warning operation and a visual warning operation. Warning control is performed so that either one or both of the warning operations are performed to call the user's attention. The warning operation may be selected by the user by the mode setting. Examples of the audible warning operation include a warning sound from a TV speaker or a PC speaker and a warning message by voice. Examples of the visual warning include displaying on the TV 106 by characters and characters, lighting of a pilot lamp, and the like.

Next, regarding the security mode setting,
This will be described using the flowcharts shown in FIGS. 11 to 14.

First, referring to FIG. 11, the security mode setting in the case of performing the warning control without the power control of the TV 106 in the warning operation mode will be described.

When the power supply of the TV 106 is not controlled in the warning operation mode, the warning control in the warning operation mode is performed independently of the TV 106 when the power of the TV 106 is off.
Therefore, the warning operation in this case is the same as the above-mentioned PC1.
Warning sound from 02 speaker, output of warning message,
The pilot lamp is turned on.

When the security mode setting is instructed in the mode setting waiting state, the mode is set when the TV power is turned on. At this time, if cancellation is instructed, the state returns to the mode setting waiting state again. Select the forced display mode or warning operation mode in the mode setting state when the TV power is turned on. Next, when the end of setting is instructed, the setting is confirmed and the mode is set when the TV is turned off. Here, if the reset is instructed, the mode is set again when the TV power is turned on. Further, as the warning operation mode, a warning operation type may be selected. In the mode setting state when the TV power is off, the mode is selected in the same manner as when the power is on. When the forced display mode is selected when the power is turned off, the timer of the display period for displaying the camera signal on the TV 106 as a sub screen is set. Next, when the end of setting is instructed, the mode setting is confirmed. Next, when the end of mode setting (“end” in the figure) is instructed, the initial mode setting waiting state is restored again.

Next, warning control when the security mode setting shown in FIG. 11 is performed will be described with reference to the flow chart shown in FIG.

When a warning signal is input from the home security system to the PC, the on / off state of the TV power supply is confirmed. If the TV power is on, check the set security mode. When the security mode is the warning operation mode, the warning operation control in the warning operation mode is performed. When the warning end is instructed, the warning operation is ended. When the security mode is the forced display mode, the camera signal is selected as the sub screen, and the display screens are combined, the memory is written, and the display is performed. When the warning end is instructed, the display of the camera signal is ended. Next, when the TV power is off, the security mode is similarly confirmed. When the security mode is the warning operation mode, the same control as when the TV power is turned on is performed. At this time, since all warning operations are performed independently of the TV 106, the PC 1
02 does not perform TV power supply control. Therefore, the TV power supply remains off. Next, when the security mode is the forced display mode, the TV power is turned on and the display is performed in the same manner as when the power is turned on. When the time set by the timer is reached, the display ends and the TV power is turned off. Further, even before the timer setting time, if the warning end is instructed, the display is ended.

Next, the security mode setting in the case of performing the warning control accompanied by the power control of the TV 106 in the warning operation mode will be described with reference to FIG.

When the power supply of the TV 106 is controlled in the warning operation mode, the warning in the warning control of the warning operation mode can be issued by using the TV 106 when the power of the TV 106 is off. Therefore, as the warning operation in this case, the visual warning control described above and the auditory warning control from the speaker of the PC 102 or the TV 106 can be performed.

The security mode setting is performed in the same manner as the mode setting described with reference to FIG. 11, except for the setting in the warning operation mode when the TV is off. When the warning operation mode is selected in the mode setting state when the TV power is off, the timer setting state is set. Similar to the case where the forced display mode is selected, the timer setting is performed, and when the end of the setting is instructed, the mode setting is confirmed. Next, when the end of mode setting (“end” in the figure) is instructed, the initial mode setting waiting state is restored again.

Next, warning control when the security mode setting shown in FIG. 13 is performed will be described with reference to the flowchart shown in FIG.

The warning control is performed in the same manner as described with reference to FIG. 12 when the TV power is turned on. When the power of the TV is turned off, the power of the TV 106 is first turned on. Next, when the set security mode is the warning operation, the warning control is performed so as to perform the above-mentioned warning operation. When the timer reaches the set time, the warning operation ends and T
Turn off the V power supply. Further, even before the timer setting time, when the warning end is instructed, the warning display is ended. When the security mode is forced display, control is performed in the same manner as the warning control described with reference to FIG.

In the example described with reference to FIGS. 11 to 14, the warning end in the warning operation mode is a method in which the timer is not set, but the timer end can be set in the warning operation mode as well. Timer control becomes possible. Further, when the warning signal is input, the warning control may be continued until the warning end is instructed, and the warning control may be ended when the warning signal is input.

In the mode setting function, the PC 10
2. A memory function may be provided to store the setting state even after the TV 106 is turned off.

As described above, when a warning signal indicating that an abnormality has been detected is input from the security system, warning control is performed so as to draw the user's attention, and
Since the warning control method can be selected by the mode setting function, a more convenient system can be configured.

Although the number of display signals is set to 4 in this embodiment, even if the number of signals is different, it can be dealt with by changing the number of input connectors and the number of buses to be connected. Furthermore, in the present embodiment, the warning signal of the home security system is input from the same data bus as the camera signal, but it is also possible to provide a dedicated input connector. Further, it is also possible to adopt a system in which a warning signal is input to the CPU and a command for warning control is transferred from the CPU to the controller.

When all the input display signals are digital signals, the controller 212 can be constructed without providing the digitizing circuit 305.

Next, a second embodiment having a different TV display screen configuration will be described with reference to FIGS.

FIG. 15 shows the display screen configuration of the second embodiment.
In FIG. 15, reference numeral 1501 denotes a television, which is the same as the television 104 in FIG. Reference numerals 1502 to 1504 denote screens 1 to 3 displayed on the television 1501, respectively. Here, although the number of screens is 3 in this embodiment, the screens can be displayed up to the maximum number of input display signals.

FIG. 16 is a flowchart of display control in the second embodiment.

First, the display screen structure of the second embodiment will be described with reference to FIG.

The screens 1502 to 1503 displayed on the TV 1301 are all window-shaped screens in which the display area size and position can be changed. Therefore, as shown in FIG. 15, the individual screens 1502 to 1503 can be displayed side by side, or can be freely arranged and displayed in a vertical arrangement, a block shape, or the like. Further, for example, the screen 1502 is displayed on the TV 130 similarly to the main screen described in the first embodiment.
It is also possible to display the entire screen of No. 1 and display the screens 1503 and 1504 on the screen 1502 in the same manner as the sub screen.
The display control that realizes such a display screen configuration can be similarly performed by using the controller 212 described with reference to FIGS. 2 and 3 in the first embodiment.

Next, the mode setting function will be described.

Also in this embodiment, as in the first embodiment, a display selection mode, a voice selection mode, a display area change mode, and a security mode setting function are provided. Therefore, the display selection mode of the second embodiment will be described next with reference to the flowchart shown in FIG. In the present embodiment, it is assumed that only the TV signal is displayed on the entire screen of the TV 1301 and the sound of the TV signal is output from the TV speaker in the initial state.

When the display selection mode is designated in the mode setting waiting state, the display selection state is set. If a cancel instruction is given here, the initial mode setting waiting state is restored again.
When the display signal is selected in the display selection state and the end of setting is instructed, the selection is confirmed and the voice selection state is set. If a reset instruction is given here, the display selection state is restored again. When the display signal and the output destination for audio output are selected in the audio selection state and the end of setting is instructed, the selection is confirmed. If a reset instruction is given here, the voice selection state is restored again. Next, when the end of the mode setting (“end” in the figure) is instructed, the display selection mode ends, the display control and the voice output control are performed, and the mode setting waiting state is returned.

The other modes are set in the first embodiment.
The setting control described with reference to FIGS. 6 to 14 can be performed in the same manner except that the main screen is not set.

As described above, by setting all the screens displayed on the TV 1301 as the screens in which the display area size and position can be changed, the display screen configuration can be set with a higher degree of freedom.

Next, a third embodiment having a different controller configuration will be described with reference to FIGS. 2, 17, and 18. In this embodiment, except that the controller 212 described in Embodiment 1 with reference to FIGS. 2 and 3 is the controller shown in FIG. 17, the PC configuration described with reference to FIG.
It is similar to the control operation.

FIG. 17 is a block diagram of the controller of this embodiment. In FIG. 17, 1700 is a controller, and 30
1-1 and 301-2 to 301-4 are PCs, respectively.
It is a data bus for transferring a display signal and a display signal which is an analog signal or a digital signal input from the outside, and is the same as the data buses 301-1 to 301-4 described in Embodiment 1 with reference to FIG. 1701 is a digitizing circuit, and 1702-2 to 1702-4 are data buses for transferring the digital display signals digitized by the digitizing circuit 1701. 1703 is a PC shown in FIG.
It is the same bus as the system bus of 102, and control signals,
Transfer the address. Reference numeral 1704 denotes a memory control circuit, and 1705 denotes the CPU 201 to the system bus 150.
3 is a bus for transferring a memory control signal transferred via the memory control circuit 1704 to the memory control circuit 1704. 1706-1 to 1
Reference numeral 706-4 is a bus for transferring write / read control signals and write / read addresses generated by the memory control circuit 1704. 1707-1 to 170
Reference numeral 7-4 is a memory for storing data of a digital display signal for one frame. 1708-1 to 1708-4
Is a data bus for transferring data of digital display signals stored in the memories 1707-1 to 1707-4, respectively. A separation circuit 1709 separates the digital display signal into image data and audio data. 1710-1
To 1710-4 and 1711-1 to 1711-4
Is a data bus for transferring image data and audio data. 1712 is an image controller, and 1713 is
This is a bus for transferring image selection signals, display control signals, and addresses transferred via the system bus 1703.
Reference numerals 1714 and 1715 are a data bus and a signal bus for transferring the digital display data synthesized and generated by the image controller 1712 and the memory write and read control signals, respectively. A memory 1716 stores digital display data for one frame. Reference numeral 1717 is a data bus for transferring digital display data for one frame. 1
Reference numeral 718 is an audio switch, and 1719 is a bus for transferring an audio selection signal transferred via the system bus 1703. Reference numeral 1720 denotes a data bus for transferring the audio data selected by the audio switch 1718.
Is an audio output circuit. 1722 is the system bus 17
Bus for transferring a voice control signal which is a control signal transferred from the CPU 201 transferred via
Reference numeral 23 is a data bus for transferring audio data. 172
Reference numeral 4 is a TV power supply control circuit, and 1725 is a bus for transferring a power supply switching signal which is a control signal transferred from the CPU 201 transferred via the system bus 1703. 1726 and 1727 are TV power supply control circuits 172, respectively.
4 is a signal line for transferring the TV power supply control signal and the TV status signal, which are the same as the signal lines 218 and 219 shown in FIG.

FIG. 18 is a flow chart of the display control of the controller 1700.

First, referring to FIG. 17, the controller 17
The display control performed by 00 will be described. In this embodiment, the input display signal and the initial state of the TV 106 screen are the same as those in the first embodiment.

The PC display data is stored in the data bus 301-1.
Via the memory 1707-1. The display signals input from the outside are the corresponding 301-2 to 30-2.
It is transferred to the digitizing circuit 1701 via 1-4. The digitizing circuit 1701 digitizes the display signal in the same manner as the digitizing circuit 305 described with reference to FIG. 3 in the first embodiment, and as the digital display signal, the corresponding data buses 1702-2 to 1702-4. Via the memory 1707-2 to 1707-4. Next, the memory control circuit 1704 generates a write control signal and a write address for controlling writing to the memory 1707 in accordance with the memory control signal transferred via the bus 1705, and then, via the buses 1706-1 to 1706-4. And transfers it from the memory 1707-1 to 1707-4. Each of the memories 1707-1 to 1707-4 has a memory 1 according to a write control signal and a write address.
Data for one frame of the digital display signal transferred via the data bus 301-1 and the data buses 1702-1 to 1702-4 corresponding to 707 is stored. At the same time, the memory control circuit 1704 controls each memory 170
7, a read control signal and a read address for performing synchronized data read control are generated, and the bus 1706 is generated.
-1 to 1706-4 to the memories 1707-1 to 1707-4. Data of the digital display signal for one frame is synchronously read from each memory 1707 according to the read control signal and the read address, and the data buses 1708-1 to 1708 respectively corresponding thereto.
-4 is transferred to the separation circuit 1709. Other operations are the control operation of the controller 212 described with reference to FIGS. 2 and 3 in the first embodiment, and the image controller 171.
It is the same except that the data synchronization control is not performed in 2.

Next, referring to FIG. 18, the controller 170
The display control performed by 0 will be described.

When a display signal is input, each display signal is stored in the corresponding memory. Next, each display signal read from the memory is separated into image data and audio data. The subsequent control is the same as the display control described with reference to FIG. 4 in the first embodiment.

The other system configuration, control operation, and mode setting function are all the same as in the first embodiment.

As described above, by providing the memory for storing the data for one frame of each display signal, the data synchronization control can be easily performed.

Next, a fourth embodiment of the TV control system using the PC system will be described with reference to FIGS.

FIG. 19 is a block diagram of the PC and controller of this embodiment. In FIG. 19, 1901 is a CPU, and 1
Reference numeral 902 is a system memory. Reference numeral 1903 is a display memory controller, and 1904 is a display memory for storing display data of the PC. 1905 is a system bus, and 1906, 1907, 1908, and 1909 are buses for transferring control signals, data, and addresses to the CPU 1901, system memory 1902, display memory controller 1903, and display memory 1904, respectively. 19
10 is a display memory controller 1903 and a display memory 1
A bus for transferring control signals and PC display data between 904. Reference numeral 1911 is a data bus for transferring PC display data, and 1912 is a controller for performing display control. The PC of this embodiment is configured as described above. 1913-1 to 1913-3 are data buses for transferring display signals input from the outside. Reference numeral 1914 is a separation circuit, and 1915 is a display memory controller 19
A data control circuit for controlling the data transfer from 03. Reference numeral 1916 is a signal bus for transferring a selection signal for controlling the data control circuit 1915, and 1917 is a signal line for transferring a read instruction signal for instructing the display memory controller 1903 to perform memory reading. 1918 is P
C is a data bus for transferring display data. 1919-
1 to 1919-4 and 1920-1 to 1920-
A data bus 4 transfers the image data and audio data separated by the separation circuit 1914. A digitizing circuit 1921 converts image data into digital image data. 1922-2 to 1922-4 are data buses for transferring digital image data. 1923 is an image controller, and 1924 is an image controller 192.
3 is a signal bus for transferring an image selection signal and a display control signal. 1925 and 1926 are the image controller 19 respectively.
Reference numeral 1927 denotes a data bus and a signal bus for transferring one frame of digital display data synthesized and generated in 23 and a memory write / read control signal, and 1927 is a memory for storing one frame of digital display data. 19
28 is a data bus for transferring digital display data for one frame. 1929 is a voice switch, and
A signal bus 30 transfers a voice selection signal to the voice switch 1929. Reference numeral 1931 is a data bus for transferring the audio data selected by the audio switch 1929.
Reference numeral 32 is an audio output circuit. 1933 is a voice output circuit 1
A signal bus for transferring a voice control signal to 932.
Reference numeral 34 is a data bus for transferring audio data. 193
Reference numeral 5 is a TV power supply control circuit, and 1936 is a signal bus for transferring a power supply switching signal to the TV power supply control circuit 1935. 1937 and 1938 are a TV power supply control signal and T, respectively.
This is a signal line for transferring the V state signal, and is the same as the signal lines 218 and 219 described with reference to FIG. 2 in the first embodiment.

FIG. 20 shows the controller 1912 of this embodiment.
3 is a flowchart of display control of FIG.

First, referring to FIG. 19, the controller 19
The display control performed by 12 will be described.

The data control circuit 1915 uses the bus 1916.
A read instruction signal is generated according to a selection signal indicating a selection state of the PC display signal transferred via the signal line 1
Transfer to the display memory controller 1903 via 917. The read instruction signal controls the display memory controller 1903 to read the stored PC display data from the display memory 1904 when the PC display signal is selected as the display signal for displaying.
In this case, the display memory controller 1903 reads the PC display data stored in the display memory 1904 according to the read instruction signal and transfers it to the data control circuit 1915 via the data bus 1911. The data control circuit 1915 transfers the PC display data to the separation circuit 1914 via the data bus 1918. Next, if the PC display signal is not selected as the read instruction signal,
The display memory controller 1903 is controlled so that the PC data is not read from the display memory 1904. In this case, the display memory controller 1903 does not perform the PC display data read control from the display memory 1904. Therefore, the PC display data is not transferred to the data control circuit 1915 and the separation circuit 1914. Next, the separation circuit 1914 uses the PC display data and
Each display signal input from the outside via the data buses 1913-1 to 1913-3 is separated into image data and audio data. Here, when the PC display data is not selected as the display signal for displaying, the PC display data is not transferred, and thus the separation control is not performed. Other control operations are the same as those of the controller 212 described with reference to FIGS. 2 and 3 in the first embodiment.

Further, other system configuration of this embodiment,
The control operation and the mode setting function are the same as those in the first embodiment.

Next, referring to FIG. 20, the controller 191
The display control performed by 2 will be described.

When the PC display signal is selected as the display signal for displaying, the PC display data is read from the display memory and separated into image data and audio data.
When the PC display signal is not selected, reading from the display memory is not performed. In this case, only another display signal input from the outside is separated into image data and audio data. Other controls are the same as the display control described with reference to FIG. 4 in the first embodiment.

As described above, by providing the data control circuit 1915 in the controller 1912 and controlling the reading and transfer of the PC display data from the display memory in accordance with the selection state of the PC display signal, the display memory controller 1903 and the controller 1912 are controlled. The control operation can be reduced.

Further, the controller 1912 of this embodiment can be used in the second embodiment.

Further, by providing the data control circuit 1915 described in this embodiment to the controller 1700 described in Embodiment 3 with reference to FIG. 17, the controller 1700
Can be used as the controller of this embodiment.

Next, a fifth embodiment of the TV display control system having a dedicated connector for inputting a data-compressed display signal will be described with reference to FIGS.

In this embodiment, as the input display signal,
Even if there is a data-compressed display signal, a connector (not shown) and a bus dedicated to the input of the compressed display signal are provided, and a decoding function is provided in the controller, so that the same display as other data-uncompressed display signals is displayed. Control can be performed.

The system configuration, the PC system configuration, and the control operation of this embodiment are the same as the system configuration described in the first embodiment with reference to FIGS. 1 and 2, except for the controller 212. In this embodiment, the total number of input display signals is 4, the number of uncompressed display signals that are not data compressed is 3, and the number of compressed display signals that are data compressed is 1.

FIG. 21 is a block diagram of the controller of this embodiment. In FIG. 21, reference numeral 2101 is a controller that performs display control. Reference numerals 2102-1 to 2102-3 are data buses for transferring an uncompressed display signal which is not data-compressed. In this embodiment, 2102-1 is a PC display signal, and 2102-2 and 2002-3 are input from the outside. It is assumed that the display signal is being transferred. Reference numeral 2103 is a data bus for transferring a compressed display signal which is compressed. still,
Although not shown, the data buses 2102-2 and 2102-
3 and 2103 are each provided with a connector for inputting a display signal from the outside. A system bus 2104 transfers control signals and addresses. 210
A separation circuit 5 separates the display signal into image data and audio data. A decoder 2106 decodes the compressed display signal. A signal bus 2107 transfers a control signal of the decoder 2106. Reference numeral 2108 denotes a data bus for transferring the decoded display signal obtained by decoding the compressed display signal, and 2109 is a memory for storing the decoded display data. Reference numeral 2110 is a signal bus for transferring a control signal for controlling reading and writing of the memory 2109.
Is a data bus for transferring the decode display data. Two
112-1 to 2112-4 and 2113-1 to 21
A data bus 13-4 transfers image data and audio data. 2114 is a digitizing circuit,
Reference numerals 5-2 and 2115-3 are data buses for transferring the digital image data digitized by the digitizing circuit 2114. 2116 is an image controller, and 211
A signal bus 7 transfers an image selection signal and a display control signal to the image controller 2116. 2117, 2118
1 generated by the image controller 2116
Digital display data for frames and memory writing,
A data bus and a signal bus for transferring the read control signal, and a memory 2120 for storing one frame of digital display data. A data bus 2121 transfers digital display data for one frame. 2122
Is a voice switch, and 2123 is a signal bus for transferring a voice selection signal. 2124 is a voice switch 2122
It is a data bus that transfers the audio data selected in
2125 is an audio output circuit. Reference numeral 2126 is a signal bus for transferring an audio control signal for controlling the audio output circuit 2123, and 2127 is a data bus for transferring audio data. Reference numeral 2128 is a TV power supply control circuit, and 2129 is a signal bus for transferring a power supply switching signal to the TV power supply control circuit 2128. Reference numerals 2130 and 2131 denote signal lines for transferring the TV power supply control signal and the TV status signal, respectively, which are the same as the signal lines 218 and 219 described with reference to FIG. 2 in the first embodiment.

FIG. 22 is a flow chart of the display control of the controller 2101.

First, referring to FIG. 21, the controller 21
The display control performed by 01 will be described.

Among the PC display data and the display signal input from the outside, the non-compressed display signal is separated by the separation circuit 21 via the corresponding data buses 2102-1 to 2102-3.
05. The compressed display signal is transferred to the decoder 2106 via the dedicated data bus 2103. The decoder 2106 decodes the compressed display signal in accordance with the control signal transferred via the bus 2107, and as the decoded display data, the memory 210 via the data bus 2108.
Transfer to 9. The memory 2109 stores the decode display data according to the write control signal and the address transferred via the bus 2110. Next, the memory 2109
Reads the stored decoded display data according to the read control signal transferred via the bus 2110 and transfers it to the separation circuit 2105 via the data bus 2111. The separation circuit 2105 separates the uncompressed display signal and the decoded display data into image data and audio data, respectively. The PC display data, the image data of the compressed display signal, and the audio data of each display signal correspond to the corresponding data bus 2 respectively.
112-1 and 2112-4, and 213-1 to 21
It is transferred to the image controller 2116 and the voice switch 2122 via 13-4. The image data of the uncompressed display data is transferred to the digitizing circuit 2114 via the corresponding data buses 2112-2 and 2112-3. Other control operations are the same as those of the controller 212 described with reference to FIGS. 2 and 3 in the first embodiment.

Next, the controller 210 will be described with reference to FIG.
The display control performed by 1 will be described.

When the display signal is input, the non-compressed display signal is separated into image data and audio data. The compressed display signal is decoded and the decoded display data is written in the memory. Next, the written decoded display data is read from the memory and similarly separated into image data and audio data. Regarding the subsequent display control, in the first embodiment,
This is the same as the display control described with reference to FIG.

As described above, even when there is a data-compressed display signal, a dedicated connector for inputting the compressed display signal and a data bus are provided, and the controller is provided with a decoding function, so that the display signal which is not data-compressed is displayed. Display control can be performed similarly to. Further, even when the number of non-compressed display signals and the number of compressed signals are increased, it is possible to deal with them by changing the number of connectors and data buses for inputting non-compressed signals, the number of connectors and data buses for inputting compressed signals, and the number of decoders.

Also in the second embodiment, the controller 2101
Can be used. Furthermore, the controller 2101
In addition, by providing the data control circuit 1915 described in Embodiment 4 with reference to FIG.
01 can be used.

23 and 24 of the sixth embodiment of the TV display control system capable of controlling the display of the compressed display signal without providing a dedicated connector for inputting the data-compressed display signal. It demonstrates using.

In the present embodiment, if the input display signal is not data-compressed, it is output to the controller for display control without decoding the display signal, and if it is data-compressed, the display signal is output. A decoder for decoding is provided. By providing such a decoder, display control can be performed without distinguishing between compressed display signals and non-compressed display signals, and there is no need to provide a dedicated input connector and bus for compressed display signals.

The system configuration, the PC system configuration, and the control operation of this embodiment are the same as the system configuration described in the first embodiment with reference to FIGS. 1 and 2, except for the controller 212. In the present embodiment, the total number of non-compressed display signals and compressed display signals will be four.

FIG. 23 is a block diagram of the controller. FIG.
3, a controller 2300 performs display control.
2301-1 is a data bus for transferring a PC display signal, and 2301-2 to 2301-4 transfer either an uncompressed display signal without data compression or a compressed display signal with data compression input from the outside. It is a data bus. Although not shown, the data bus 2301-
2 to 2301-4 are each provided with a connector for inputting a display signal from the outside. 2302 is a digitizing circuit, and 2301-4 to 2301-5 are data buses for transferring the digital display signals digitized by the digitizing circuit 2302. Reference numeral 2303 denotes a system bus, which transfers control signals and addresses. 2304
Is a decoder, which decodes the compressed display signal. Two
305 is a digitizing circuit 2302 and a decoder 2304
Is a signal bus for transferring a data discrimination signal for controlling the compression discrimination signal and a compression discrimination signal. 2306-2 to 2306-4 are data buses for transferring an uncompressed display signal. 2307-2
To 2307-4 are data buses for transferring the decoded display data decoded by the decoder 2304.
A signal line 08 transfers a data selection signal generated by the decoder 2304. Reference numeral 2309 denotes a memory for storing decoded display data, which is provided by the number of display signals input from the outside (3 in this embodiment). Reference numeral 2310 is a signal bus for transferring a control signal for performing read / write control of the memory 2309, and reference numerals 2311-2 to 2311-4 are data buses for transferring the decoded display data read from the memory 2309. 2312 is a signal selection circuit,
2313-2 to 2313-4 are signal selection circuits 2312
This is a data bus for transferring display data which is either the non-compressed display signal or the decoded display data selected by. A separation circuit 2314 separates display data into image data and audio data. 2315-1 to 2315
-4 and 2316-1 and 2316-4 are data buses for transferring image data and audio data, respectively. 2317
Is an image controller, 2318 is an image selection signal,
It is a signal bus for transferring a display control signal. 2319, 2
Reference numeral 320 denotes a data bus and a signal bus for transferring one frame of digital display data synthesized and generated by the image controller 2317 and a memory write / read control signal, and 2321 stores one frame of digital display data. It is a memory. 2322 is a data bus for transferring digital display data for one frame. Two
Reference numeral 323 is an audio switch, and 2324 is a signal bus for transferring an audio selection signal. 2325 is a voice switch 2
A data bus for transferring the audio data selected in 323, and 2326 is an audio output circuit. Reference numeral 2327 is a signal bus for transferring audio control signals, and 2328 is a data bus for transferring audio data. Reference numeral 2329 is a TV power supply control circuit, and 2330 is a signal bus for transferring a power supply switching signal. Reference numerals 2331 and 2332 denote signal lines for transferring the TV power supply control signal and the TV status signal, respectively, which are the same as the signal lines 218 and 219 described in Embodiment 1 with reference to FIG.

FIG. 24 is an example of a flow chart of the display control of the controller 2300.

First, the display control performed by the controller 2300 of this embodiment will be described with reference to FIG.

The PC display data is transferred to the separation circuit 2314 via the data bus 2301-1, and the display signals inputted from the outside are respectively data buses 2302-2 to 2302-23.
02-4, and is transferred to the digitizing circuit 2302. The display signal is either an uncompressed display signal without data compression or a compressed display signal with data compression. At the same time, a data discrimination signal indicating whether the display signal is NTSC, analog, or digital is transferred to the digitizing circuit 2302 via the bus 2305. The digitizing circuit 2302 converts the display signal, which is an NTSC signal or an analog signal, into the digitizing circuit 3 described in Embodiment 1 with reference to FIG.
In the same manner as 05, the data buses 2301-4 to 2301 corresponding to the respective digital buses are converted into digital display signals.
Transfer to decoder 2304 via -6. When the display signal is a digital signal, it is not converted and is transferred to the decoder 2304 via the corresponding data buses 2301-4 to 2301-6. At the same time, the decoder 2304
A compression determination signal indicating whether each input display signal is data-compressed is stored in the system bus 23.
03 from the bus via the bus 2305. When the display signal is not data-compressed according to the compression determination signal, the decoder 2304 does not perform decoding and transfers the display signal to the signal selection circuit 2312 via the corresponding data buses 2306-2 to 2306-4. When the display signal is data-compressed, decoding is performed, and the decoded display data obtained by decoding the compressed display signal is stored in the memory 2 via the corresponding data buses 2307-2 to 2307-4.
Transfer to 309. Therefore, the data bus 2306-
In 2 to 2306-4, the display signal is not transferred when the corresponding display signal is the compressed display signal. Similarly, on the data buses 2307-2 to 2307-4, when the corresponding display signal is an uncompressed signal, the decoded display data is not transferred. Next, a write control signal and an address are transferred to each memory 2309 from the system bus 2303 via the bus 2310. The write control signal is stored in the memory 230 corresponding to the compressed display signal.
Control is performed so that the decoded display data is stored only in No. 9.
Next, each memory 2309 reads the decoded display data stored in the memory 2309 corresponding to the compressed display signal according to the read control signal transferred from the system bus 2303 via the bus 2310. The decoded display data read out corresponds to the corresponding data bus 23.
Signal selection circuit 232 via 11-2 to 2311-4
Transferred to 1. Also in this case, the decoded display data is not transferred to the data bus 2311 corresponding to the non-compressed display signal. Further, the decoder 2308 simultaneously generates a data selection signal and transfers it to the signal selection circuit 2312 via the signal line 2308. The data selection signal is the data bus 2306-2 when the display signal is an uncompressed display signal.
To 2306-4 are selected, the data bus 2311− is selected when the display signal is a compressed display signal.
The signal selection circuit 2312 is controlled so as to select the decoded display data transferred from 2 to 2311-4.
The signal selection circuit 2312 switches each of the data buses 2306 and 2311 in accordance with the data selection signal, and separates the selected display signal or decoded display data as display data via the corresponding data buses 2313-2 to 2313-4. Transfer to 2314. Other control operations are the same as those of the controller 212 described in the first embodiment with reference to FIGS. 2 and 3.

Next, referring to FIG. 24, the controller 230
An example of the display control performed by 0 will be described.

When the display signal is input, in the case of an uncompressed display signal, it is selected as an uncompressed signal without decoding,
It is separated into image data and audio data. The compressed display signal is decoded and written in the memory. next,
The decoded display data written in the memory is read out and selected as a compressed display signal, and is similarly separated into image data and audio data. The subsequent display control is the same as the display control described with reference to FIG. 4 in the first embodiment.

As described above, by determining whether or not the display signal is data-compressed, decoding only the compressed display signal, and providing the display control together with the non-compressed display signal, a dedicated input connector for the compressed display signal and It is possible to configure a system capable of freely inputting uncompressed display signals and compressed display signals and controlling display without providing a bus.
Further, although the number of input signals is set to 4 in the present embodiment, it is possible to cope with the case where the number of signals is 4 or more by changing the number of input connectors and data buses.

In the second embodiment, the controller 2300 is also used.
Can be used. Further, the controller 2300
In addition, by providing the data control circuit 1915 described in Embodiment 4 with reference to FIG.
00 can be used.

Next, a seventh embodiment of a TV control system using a PC equipped with a color palette will be described with reference to FIG.

FIG. 25 is a block diagram of the TV display control system of this embodiment. Reference numeral 2501 is a PC, and 2502 is a data bus for transferring a display signal input from the outside. Two
Reference numeral 503 denotes a TV, which is the same as the TV 106 described with reference to FIG. 1 in the first embodiment. 2504 is a CPU, and 2
Reference numeral 505 is a system memory. 2506 is a display memory controller, 2507 is a display memory, and
The PC data which is the display data of C2501 is stored.
Reference numeral 2508 denotes a color palette, which is a display memory 2507.
The PC display data of R, G, B corresponding to the PC data stored in is selected. 2509 is a system bus, and 2510, 2511, 2512, and 2513 are buses for transferring control signals, addresses, and data to the CPU 2504, system memory 2505, display memory controller 2506, and display memory 2507, respectively. 251
4 is a display memory controller 2506 and a display memory 25.
07, memory write, read control signal and P
This is a bus for transferring C data. 2515 is a data bus for transferring PC data. Reference numeral 2516 is a data bus for transferring PC display data. Reference numeral 2517 denotes a controller, which is the same as the controller 212 described with reference to FIGS. 2 and 3 in the first embodiment. 2518 is a bus for transferring control signals and addresses to the controller 2517. A data bus 2519 transfers the digital display data and the audio data selected and synthesized by the controller 2517. Reference numeral 2520 is a signal conversion circuit, and 2521 is a data bus for transferring the display signal and the synchronization signal converted and generated by the signal conversion circuit. Reference numeral 2522 is a TV power supply circuit of the TV 2503. 2523 is a controller 2517
Is a signal line for transferring the TV power control signal generated in
Reference numeral 2524 is a signal line for transferring the TV status signal output from the power supply circuit 2520. Signal conversion circuit 2520, T
The V power supply circuit 2522, the buses 2519 and 2521, and the signal lines 2523 and 2524 are the signal conversion circuit 215, the TV power supply circuit 217, and the signal conversion circuit 215 described in Embodiment 1 with reference to FIG.
Data bus 214, bus 216, signal lines 218, 219
Is the same as

The display memory 2507 includes the system bus 2
The PC data, which is the display data of the PC, is transferred via the bus 509 and the bus 2513. The display memory controller 2506 sends the system bus 2 from the CPU 2501.
A memory write control signal is generated according to the write command and address to the display memory 2507 transferred via the bus 509 and the bus 2512, and transferred to the display memory 2507 via the bus 2514. Addresses transferred via the bus 2513 and PC data according to the memory write control signal are written in the display memory 2507.
At the same time, the display memory controller 2506 generates a read control signal and outputs the read control signal to the display memory 2 via the bus 2514.
Transfer to 507. PC data is read from the display memory 2507 in accordance with the read control signal, and
14 to the display memory controller 2506. The display memory controller 2506 transfers the transferred PC data to the color palette 2508 via the data bus 2515. In the color palette 2508,
The PC display data of R, G, B corresponding to the transferred PC data is selected and transferred to the controller 2517 via the data bus 2516. Other system configurations, control operations, and display control of the controller 2517 are performed in the first embodiment.
This is the same as the PC 102 and the controller 212 described with reference to FIGS. 2 and 3.

As described above, a PC provided with a color palette
Even in the case of using, the display control of the display signal of the PC can be performed similarly to the display signal input from the outside.

The TV display control system of this embodiment can also be applied to the second embodiment. In addition, the controller 170 described in the third, fifth and sixth embodiments is added to the present embodiment.
0, 2101, 2300 can be used.

Next, an eighth embodiment of the TV display control system using the PC system having the color palette will be described with reference to FIGS.

FIG. 26 is a block diagram of the PC and controller of this embodiment. In FIG. 26, reference numeral 2601 denotes a CPU, and 2
602 is a system memory. 2603 is a display memory controller, and 2604 is a display memory for storing PC data which is display data of the PC. A color palette 2605 selects R, G, and B PC display data corresponding to the PC data stored in the display memory 2604 from the stored color data. 2606 is a system bus, and 2607, 2608, 2609,
2610 is a CPU 2601 and a system memory 26, respectively.
02, display memory control circuit 2603, display memory 260
4 is a bus for transferring control signals, data, and addresses. 2611 is a bus for transferring memory write / read control signals and PC data. 2612 is a data bus for transferring PC data, and 2613 is R, G,
A data bus for transferring PC display data of B. 26
Reference numeral 14 is a data control circuit, and 2615 is a data bus for transferring PC display data. Controller 1912
The other configurations are similar to those of the controller 1912 described with reference to FIG. 19 in the fourth embodiment.

The writing, reading, and transfer to the controller 1912 of PC data, which is the display data of the PC, are the same as in the TV display control system described in Embodiment 7 with reference to FIG. Further, regarding the other system configuration and the display control of the controller 1912, the controller 1912 described in Embodiment 4 with reference to FIG.
Is the same as

As described above, a PC provided with a color palette
Even in the case of using, the control system using the PC system can be configured.

The TV display control system of this embodiment can also be applied to the second embodiment. Example 3
Controllers 1700, 2101, 2 described in 5 and 6
300, the data control circuit 1915 described in the fourth embodiment.
By providing the above, each controller can be used in this embodiment.

Further, in the first to eighth embodiments, when the display signal other than the digital signal is not inputted, the controller can be constructed without providing the digitizing circuit.

[0128]

The display signal to be displayed on the TV is selected from a large number of display signals, which are analog signals and digital signals input from the outside, and the display signal of the PC, by the instruction from the CPU of the PC. A mode in which a controller having a function of synthesizing as display signals for screens is provided in the PC and the user can arbitrarily select one or more display signals to be displayed on the TV and set the display screen configuration. By providing the setting function, the display control of the TV can be performed by using the PC, and the user can freely set the display screen configuration of the TV. Therefore, the TV display control system having a higher degree of freedom and convenience can be configured. can do.

[Brief description of drawings]

FIG. 1 is a block diagram of a TV display control system of the present invention.

FIG. 2 is a block diagram of a PC and a TV used in the TV display control system according to the first embodiment of the present invention.

FIG. 3 is a block diagram of a controller that performs display control according to the first embodiment of the present invention.

FIG. 4 is a control flowchart of a display control operation.

FIG. 5 is a control flowchart in a display selection mode.

FIG. 6 is a control flowchart in a display area changing mode.

FIG. 7 is a control flowchart in a voice selection mode.

FIG. 8 is a control flowchart in the case where voice selection is performed simultaneously in the display selection mode.

FIG. 9 is a control flowchart when the display area is changed at the same time in the display selection mode.

FIG. 10 is a control flowchart in the case of simultaneously performing voice selection and display area change in the display selection mode.

FIG. 11 is a control flowchart for security mode setting.

FIG. 12 is a control flowchart of a warning control operation in the home security system.

FIG. 13 is a control flowchart for security mode setting.

FIG. 14 is a control flowchart of a warning control operation in the home security system.

FIG. 15 is a block diagram of a TV display screen according to the second embodiment of the present invention.

FIG. 16 is a control flowchart of a display control operation of the second embodiment.

FIG. 17 is a block diagram of a controller according to a third embodiment of the present invention.

FIG. 18 is a control flowchart of a display control operation of the third embodiment.

FIG. 19 is a block diagram of a PC and a controller according to a fourth embodiment of the present invention.

FIG. 20 is a control flowchart of a display control operation of the fourth embodiment.

FIG. 21 is a block diagram of a controller according to a fifth embodiment of the present invention.

FIG. 22 is a control flowchart of the display control operation of the fifth embodiment.

FIG. 23 is a block diagram of a controller according to a sixth embodiment of the present invention.

FIG. 24 is a control flowchart of a display control operation of the sixth embodiment.

FIG. 25 is a block diagram of a PC and TV system according to a seventh embodiment of the present invention.

FIG. 26 is a block diagram of a controller according to an eighth embodiment of the present invention.

FIG. 27 is a block diagram of a conventional system.

[Explanation of symbols]

212 ... Controller, 213 ... System bus, 301, 303, 304, 306, 309, 3012
315, 318 ... Data bus, 302 ... Separation circuit, 305 ... Digitizing circuit, 307 ... Image control circuit, 308304, 317, 320 ... Bus, 310 ... Signal bus, 311 ... Memory, 313 ... Voice switch, 316 ... Voice control Circuit, 319 ... TV power supply control circuit, 321, 322 ... Signal line.

Front page continuation (72) Inventor Yasushi Nagai 1099, Ozenji, Aso-ku, Kawasaki-shi, Kanagawa, Ltd., Hitachi, Ltd. System Development Laboratory (72) Inventor, Satoshi Onuma, 292, Yoshida-cho, Totsuka-ku, Yokohama, Kanagawa In the system

Claims (15)

[Claims] 1. A television set for displaying according to a display signal, and an information processing device for inputting a plurality of the display signals to control display of the television, wherein the information processing device is a CPU and a system memory. A display memory for storing the display signal of the information processing device, a display memory controller for controlling the display memory, a plurality of the display signals input from the outside, and a display signal for the information processing device. From the above, a controller having a function of selecting the display signal to be displayed on the television and synthesizing the display signal into a screen configuration to be displayed on the television is provided, and the synthesized display signal is interfaced to the television. And a conversion device for generating a control signal for controlling the display of the television. Control device. 2. The display screen displayed on the television according to claim 1, wherein an arbitrary one display signal is displayed on the entire screen of the television, and an arbitrary display signal is displayed on the screen displayed on the entire screen of the television. Display device for displaying different display signals from zero to a plurality of different display signals. 3. The television according to claim 1, wherein the display signal to be displayed on the television is arbitrarily selected from a plurality of display signals input by the user to the information processing apparatus and a display signal of the information processing apparatus. When the display signal used for the alarm system is input, the user must be informed of the abnormality if the screen configuration to be displayed on is set arbitrarily, the display signal of the sound to be output is selected, and the device that outputs the sound is selected. An information processing apparatus having a function of performing warning control to be transmitted, and a mode of the warning control having a function of being arbitrarily selected and set by a user. 4. The controller according to claim 1, wherein the controller is
A display signal input from the outside and a display signal of the information processing device are separated into a video signal and an audio signal, and a video signal in a signal form that cannot be processed in the information processing device among the separated video signals. Is converted into a signal form that can be processed in the information processing device, the separated and converted video signals are selected, and a video signal to be displayed is selected and combined to have a screen configuration to be displayed on the screen of the television, A controller having a function of selecting an audio signal to be output as audio from the separated audio signals, converting the selected audio signal into an audio signal suitable for an interface of a device that outputs audio, and controlling the power supply of the television. 5. The television display device according to claim 1, wherein the display screen displayed on the television displays one to a plurality of arbitrarily selected display signals on the television screen in an arbitrary shape. 6. The controller according to claim 1, wherein the controller is
Of the display signals input from the outside, a display signal in a signal form that cannot be processed in the information processing device,
The display signal input from the outside, converted into a signal form that can be processed, the converted display signal, and the display signal of the information processing device are stored in a memory that stores data for one screen of each display signal. Then, the stored display signals are synchronously read from the memory, the read display signal is separated into a video signal and an audio signal, and a signal to be displayed is selected from the separated video signals. The audio signal to be output is selected from the separated audio signals and converted to an audio signal suitable for the interface of the device that outputs the audio, and the power control of the TV is performed. A controller that has the function of performing. 7. The controller according to claim 1, wherein the controller is
When the display signal of the information processing device is selected as the display signal to be displayed on the television, the display memory is read from the display memory in which the display signal of the information processing device is stored. When the display signal of the information processing device is not selected as the display signal to be displayed on the television, the display memory controller that controls the display memory controller is controlled so as not to read the display signal of the information processing device from the display memory. A display signal input from the outside when the display signal of the information processing device is selected as a display signal to be displayed on the television, and the information processing device has a function of controlling the display memory controller. Of the display signal of the information processing device as a display signal to be displayed on the television. If not selected, the display signal input from the outside is separated into video and audio signals,
Of the separated video signals, a video signal that is a signal form that cannot be processed in the information processing device is converted into a signal form that can be processed in the information processing device, and the separated and converted video signals are Select the video signal to be displayed, synthesize it so that it has the screen configuration to be displayed on the screen of the TV, select the audio signal to be output as audio from the separated audio signals, and select the audio suitable for the interface of the device that outputs the audio. A controller having a function of converting into a signal and controlling the power supply of the television. 8. The information processing device according to claim 1,
A connector for inputting a data-compressed display signal and a connector for inputting a data-uncompressed display signal, wherein the controller is provided with a connector for inputting the data-compressed display signal. Has a function of decoding a data-compressed display signal input from the outside, has a memory for storing the data of the decoded display signal, and through a connector for inputting the display signal which is not data-compressed. Display signal input from the outside without data compression, the decoded display signal read from the memory storing the data of the decoded display signal, and the display signal of the information processing device into a video signal and an audio signal. Of the separated video signals, a video signal in a signal form that cannot be processed by the information processing device After converting into a signal form that can be processed by the information processing device, a video signal to be displayed is selected from the separated and converted video signals, combined so as to have a screen configuration to be displayed on the screen of the television, and separated. From the audio signals, select the audio signal to be output as audio and convert it to an audio signal suitable for the interface of the device that outputs the audio.
A controller having a function of controlling power supply of the television. 9. The controller according to claim 1, wherein the controller is
Of the display signals input from the outside, a display signal in a signal form that cannot be processed in the information processing device,
The information processing device has a function of converting into a signal form that can be processed, of the display signals input from the outside, decoding a data-compressed display signal, and not decoding a display signal that is not data-compressed, If the display signal input from the outside is not data-compressed and has a memory for storing the data of the decoded display signal, select the display signal that is not data-compressed, and if the data is compressed, A function of selecting a decoded display signal read from a memory that stores the decoded display signal, wherein the data-uncompressed display signal, the decoded display signal, and the information processing device The display signal is separated into a video signal and an audio signal, and a video signal to be displayed is selected from the separated and converted video signals, Synthesize the screen to be displayed on the screen, select the audio signal to be output as audio from the separated audio signals, convert it to an audio signal suitable for the interface of the device that outputs the audio, and control the power supply of the TV. Controller with functions. 10. The information processing apparatus according to claim 1, wherein the CPU, a system memory, a display memory for storing display signals of the information processing apparatus, a display memory controller for controlling the display memory, Of the display data of the information processing device, a color palette for storing the display data of the information processing device corresponding to the data of the display signal of the information processing device stored in the display memory, a plurality of display signals input from the outside From the above, an information processing apparatus including a controller having a function of selecting a display signal to be displayed on the television and synthesizing the display signal so as to have a screen configuration to be displayed on the television. 11. The information processing apparatus according to claim 1, wherein the CPU, a system memory, a display memory for storing display signals of the information processing apparatus, a display memory controller for controlling the display memory, A color palette storing display data of the information processing device corresponding to display signal data of the information processing device stored in a display memory, and a display signal of the information processing device is selected as a display signal to be displayed on the television. If the display signal of the information processing device is controlled to read the display signal of the information processing device from the display memory, the display signal of the information processing device is not selected as the display signal to be displayed on the television. Controls the display memory controller that does not read the display signal of the information processing device from the display memory , A display signal to be displayed on the television is selected from a plurality of display signals input from the outside and display data of the information processing device, and the display signal is combined to have a screen configuration to be displayed on the television. An information processing apparatus including a controller having a function to perform. 12. The television set according to claim 1, wherein the television set is different from the display signal processed by the information processing device.
A television that receives a TSC signal, wherein the signal conversion circuit outputs the display signal processed by the information processing apparatus to N
A display control device having a function of converting to a TSC signal and generating a control signal of the television. 13. The display control device according to claim 1, wherein the signal conversion circuit has a function of converting a display signal processed by the information processing device into an analog RGB signal and generating a control signal of the television. 14. The display control device according to claim 1, wherein the signal conversion circuit has a function of generating a control signal for the television. 15. The display control device according to claim 1, wherein the display signal input from the outside is an NTSC signal, an analog signal, a digital signal, or a data-compressed display signal.