JP2000322037A - Personal computer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect a personal computer to various monitors having different interfaces by providing a monitor connecting card insertion slot serving as an interface between a monitor connecting card and a graphic controller. SOLUTION: A graphic controller 3 is controlled by a CPU l and a host bus controller 2, and it reads image data from an image memory 4 and outputs a digital RGB signal S3. A CRT monitor connecting card 6, an LCD monitor connecting card 7 or a TV monitor connecting card 8 can be inserted into a monitor connecting card insertion slot 5. The digital RGB signal S3 is fed to the CRT monitor connecting card 6, LCD monitor connecting card 7 or TV monitor connecting card 8. A personal computer can be connected to various monitors having different interfaces by selectively inserting the monitor connecting cards 6-8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display monitor connection technique, and more particularly to a compact personal computer to which various monitors having different interfaces can be connected.

[0002]

2. Description of the Related Art Conventionally, various displays such as a CRT monitor, a TV monitor, and an LCD monitor have been used as display monitors for personal computers. C
The RT monitor is connected to the personal computer by a 15-pin DSUB connector, the TV monitor is connected to a composite or S terminal connector, and the LCD monitor is connected to the DFP connector. When one personal computer can connect to the various monitors described above, there is a method of preparing connectors of all shapes on the back of the personal computer. As such a prior art, for example, there is one described in Japanese Patent Application Laid-Open No. 9-73343 (first prior art). That is, the first prior art described in Japanese Patent Application Laid-Open No. 9-73343 aims at expansion of a PCMCIA slot, and an input connector for receiving a slot expansion device circuit instead of a PCMCIA standard compliant IC card. A PCMCIA slot output connector for connecting to a PCMCIA slot input connector of the computer, a first PCMCIA slot input connector, and a second PCMCIA. Slot input connector
P in the PCMCIA slot input connector of
IC card and second PC compatible with CMCIA standard
Second PCMC in MCIA slot input connector
A first PCMCIA slot input connector and a second PCMCIA slot input connector are connected to a PCMCIA slot output connector so that an IC card compatible with the IA standard can be operated and controlled by a computer including a PCMCIA slot input connector. And a PCMCIA slot expansion device circuit comprising an interface circuit interconnected with the PCMCIA. In a PCMCIA slot expansion device circuit having such a hardware configuration, at least one serial port and a P
PCMCI connected to CMCIA slot input connector
A peripheral controller connected between the A slot output connectors and also to the programmable array logic circuit (PAL), at least one parallel port connected to the peripheral controller, monitoring signals transmitted and received by the slot extender circuit; And at least one visual display device connected to the interface circuit for visually monitoring signals generated on the interface circuit.

Another conventional technique is disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 9-146508 (second conventional technique). That is, the second prior art described in Japanese Patent Application Laid-Open No. 9-146508 aims to provide a portable information processing apparatus capable of using an image such as a moving image and a photograph and a PC card for expanding the function of the portable information processing apparatus. Built-in monitor, a frame memory that stores pixel data displayed on the display monitor, a graphic controller that converts the pixel data stored in the frame memory into a video signal, and a display based on the video signal from the graphic controller An information processing apparatus comprising: a display controller for controlling a monitor; and a PC card slot for inputting and outputting data to and from a PC card, wherein a display monitor is provided between the display controller and the PC card slot. Input and output of the synchronization signal and the video signal to control The PC card slot has a video signal terminal for inputting and outputting a video signal to and from the display controller, and a synchronization signal terminal for inputting and outputting a synchronization signal to and from the display controller. The signal path includes a video signal line connecting the input / output terminal of the display controller and the video signal terminal of the PC card slot, and a synchronization signal connecting the input / output terminal of the display controller and the synchronization signal terminal of the PC card slot. The PC card slot further includes a pixel data terminal for inputting / outputting pixel data between the connected PC card and the graphic controller, and the signal path further includes a signal path for the graphic controller. Pixel data bus connecting the output terminal and the pixel data terminal of the PC card slot Rannahli, NTSC, which is input to the PC card, S-VHS,
Alternatively, an image based on a digital RGB signal is displayed on a display monitor of the information processing apparatus, an image based on the compressed image data input to the PC card is displayed on a display monitor of the information processing apparatus, a TV broadcast is received, and the image is processed. It is disclosed that the display is configured to be displayed on a display monitor of an apparatus and an image based on a video signal from a communication line is displayed on a display monitor of the information processing apparatus.

[0004]

However, in the above-mentioned prior art, there is a problem that it is difficult to realize a compact type personal computer because the rear surface of the personal computer and the place of the motherboard are large.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a compact personal computer to which various monitors having different interfaces can be connected.

[0006]

An object of the present invention is to provide a compact personal computer to which various monitors having different interfaces can be connected, a graphic controller for outputting digital RGB signals, A monitor connection card for receiving the digital RGB signal, converting it into at least one of an analog RGB signal, a TMDS signal and an NTSC signal, and outputting the converted signal; and an interface between the monitor connection card and the graphic controller. A personal computer having the card insertion slot for monitor connection. Claim 2
The gist of the invention described in (1) is that the monitor connection card receives the digital RGB signal and receives the analog RGB signal.
2. The personal computer according to claim 1, further comprising a CRT monitor connection card that converts the signal into a signal and outputs the signal to a CRT monitor. The gist of the invention described in claim 3 is that the monitor connection card includes an LCD monitor connection card that receives the digital RGB signal, converts the digital RGB signal into the TMDS signal, and outputs the TMDS signal to an LCD monitor. The personal computer according to claim 1. The gist of the invention described in claim 4 is that
2. The personal computer according to claim 1, wherein the monitor connection card includes a TV monitor connection card that receives the digital RGB signal, converts the digital RGB signal into the NTSC signal, and outputs the NTSC signal to a TV monitor. The gist of the invention described in claim 5 is characterized in that various kinds of monitors are connected by inserting the kind of monitor connection card desired to be connected into the monitor connection card insertion slot. Claims 1 to 4
The personal computer according to any one of the above. The gist of the invention according to claim 6 is that a CPU, a host bus controller, the graphic controller,
A personal computer having an image memory and the monitor connection card insertion slot, the CRT monitor connection card, the LCD monitor connection card, and the TV monitor connection card; Controlled by a CPU and the host bus controller, the CPU reads out image data from the image memory and outputs the digital RGB signals.
A T monitor connection card, the LCD monitor connection card or the TV monitor connection card can be inserted;
The digital RGB signal is supplied to the CRT monitor connection card, the LCD monitor connection card, or the TV monitor connection card via the monitor connection card insertion slot. A personal computer according to any one of claims 1 to 5. The gist of the invention according to claim 7 is that the CRT monitor connection card is a connector for connecting to the personal computer main body and outputs a digital RGB signal.
B interface connector, and receives the digital RGB signal and converts the digital RGB signal to the analog RGB signal.
B, an analog RGB signal generating circuit for converting the format to B and outputting the analog RGB signal;
3. An analog RGB interface connector for supplying a GB signal to a CRT monitor.
Or the personal computer described in 6. The gist of the present invention is that the LCD monitor connection card is a connector for connecting to the personal computer main body, the digital RGB interface connector outputting the digital RGB signal, and the digital RGB interface. Receiving the signal and converting the format from digital RGB to TMDS,
A TMDS signal generating circuit for outputting an MDS signal;
7. The personal computer according to claim 3, further comprising a TMDS interface connector for supplying an MDS signal to an LCD monitor. The gist of the invention according to claim 9 is that the TV monitor connection card is a connector for connecting to the personal computer main body, wherein the digital RGB interface connector for outputting the digital RGB signal; Receiving RGB signal and digital R
Convert the format from GB to NTSC
An NTSC signal generation circuit for outputting a signal;
7. The personal computer according to claim 4, further comprising an NTSC interface connector for supplying a signal to a TV monitor.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The features of the embodiment described below are as follows.
A graphic controller for outputting digital RGB signals, a card insertion slot for a monitor connection, and a digital R
CRT that inputs a GB signal and outputs an analog RGB signal
Input the monitor connection card and digital RGB signal
LCD monitor connection card that outputs MDS signal, and TV that inputs digital RGB signal and outputs NTSC signal
An object of the present invention is to provide a compact personal computer that includes a monitor connection card and that can be connected to various monitors by inserting a desired type of monitor connection card into the monitor connection card insertion slot. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings to clarify the above and other objects, features, and advantages of the present invention.

FIG. 1 is a block diagram for explaining a configuration of a personal computer according to a first embodiment of the present invention. In FIG. 1, 1 is a CPU, 2 is a host bus controller, 3 is a graphic controller, 4 is an image memory, 5 is a card insertion slot for a monitor connection, 6
Denotes a CRT monitor connection card, 7 denotes an LCD monitor connection card, 8 denotes a TV monitor connection card, and S3 denotes a digital RGB signal. FIG. 1 shows a personal computer according to an embodiment of the present invention. The personal computer of the present embodiment has C
PU1, host bus controller 2, graphic controller 3, image memory 4, card insertion slot 5 for monitor connection, CRT monitor connection card 6, LCD monitor connection card 7, TV monitor connection card 8 The graphic controller 3 is controlled by the CPU 1 and the host bus controller 2 to read image data from the image memory 4 and output a digital RGB signal S3. A CRT monitor connection card 6, an LCD monitor connection card 7, or a TV monitor connection card 8 can be inserted into the monitor connection card insertion slot 5.
The digital RGB signal S3 is supplied to the CRT monitor connection card 6, LCD monitor connection card 7, or TV monitor connection card 8 via the monitor connection card insertion slot 5.

FIG. 2 shows the CRT monitor connection card 6 shown in FIG.
FIG. 2 is a block diagram for explaining the configuration of FIG. In FIG. 2, 6 is a CRT monitor connection card, 10 is a digital R
A GB interface connector, 11 indicates an analog RGB signal generation circuit, 12 indicates an analog RGB interface connector, S10 indicates a digital RGB signal, and S11 indicates an analog RGB signal. Referring to FIG. 2, C in FIG.
The RT monitor connection card 6 includes a digital RGB interface connector 10, an analog RGB signal generation circuit 1,
1. An analog RGB interface connector 12 is provided. The digital RGB interface connector 10 is a connector for connecting to a personal computer main body, and outputs a digital RGB signal S10. The analog RGB signal generation circuit 11 outputs the digital RGB signal S1
0 and analog R from digital RGB
Analog RGB signal S11 after format conversion to GB
Is output. The analog RGB signal S11 is analog RG
It is supplied to the CRT monitor via the B interface connector 12.

FIG. 3 shows the LCD monitor connection card 7 shown in FIG.
FIG. 2 is a block diagram for explaining the configuration of FIG. In FIG. 3, 7 is an LCD monitor connection card, 10 is a digital R
GB interface connector, 13 is a TMDS signal generation circuit, 14 is a TMDS interface connector, S10
Denotes a digital RGB signal, and S13 denotes a TMDS signal. Referring to FIG. 3, the LCD monitor connection card 7 of FIG.
0, a TMDS signal generation circuit 13, and a TMDS interface connector 14. The digital RGB interface connector 10 is a connector for connecting to a personal computer main body.
10 is output. The TMDS signal generation circuit 13 receives the digital RGB signal S10 and outputs the digital RGB signal S10.
From TMDS to TMDS to convert TMDS signal S1
3 is output. The TMDS signal S13 is supplied to the LCD monitor via the TMDS interface connector 14.

FIG. 4 is a block diagram for explaining the configuration of the TV monitor connection card 8 of FIG. In FIG. 4, 8 is a TV monitor connection card, and 10 is a digital RG.
B interface connector, 15 is an NTSC signal generation circuit, 16 is an NTSC interface connector, S10 is a digital RGB signal, and S15 is an NTSC signal. Referring to FIG. 4, the TV monitor connection card 8 of FIG.
A TSC signal generation circuit 15 and an NTSC interface connector 16 are provided. The digital RGB interface connector 10 is a connector for connecting to a personal computer main body, and outputs a digital RGB signal S10. The NTSC signal generation circuit 15 is a digital RGB
Upon receiving the signal S10, the digital RGB
It converts the format to TSC and outputs an NTSC signal S15. The NTSC signal S15 is supplied to the TV monitor via the NTSC interface connector 16.

As described above, according to the present embodiment, the following effects can be obtained. First, the first effect is that the graphic controller 3 for outputting the digital RGB signal S3, the monitor connection card insertion slot 5, the CR
Personal computer that can be connected to various monitors having different interfaces by replacing the monitor connection card based on the basic configuration of the T monitor connection card 6, the LCD monitor connection card 7, and the TV monitor connection card 8. Can be provided. The second effect is that the analog R
GB interface connector 12, TMDS interface connector 14, and NTSC interface connector 1
6 requires a smaller area of the connector portion as compared with the conventional technology having the same configuration as that of the conventional technology, and is capable of supporting various monitors having different interfaces and realizing a compact personal computer.

It should be noted that the present invention is not limited to the above embodiments, and it is clear that the embodiments can be appropriately modified within the scope of the technical idea of the present invention. Further, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, and can be set to numbers, positions, shapes, and the like suitable for carrying out the present invention. In each drawing, the same components are denoted by the same reference numerals.

[0014]

Since the present invention is configured as described above, the following effects can be obtained. First, the first effect is based on a basic configuration of a graphic controller that outputs digital RGB signals, a card insertion slot for a monitor connection, a CRT monitor connection card, an LCD monitor connection card, and a TV monitor connection card. An object of the present invention is to provide a personal computer which can be connected to various monitors having different interfaces by replacing the monitor connection card. The second effect is that an analog RGB interface connector, a TMDS interface connector, and an NT
Since the area of the connector portion is smaller than that of the conventional technology having the SC interface connector at the same time, it can support various monitors having different interfaces, and
That is, a compact personal computer can be realized.

[Brief description of the drawings]

FIG. 1 is a block diagram for explaining a configuration of a personal computer according to a first embodiment of the present invention.

FIG. 2 is a block diagram for explaining a configuration of a CRT monitor connection card of FIG. 1;

FIG. 3 is a block diagram for explaining a configuration of an LCD monitor connection card in FIG. 1;

FIG. 4 is a block diagram for explaining a configuration of a TV monitor connection card of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... CPU 2 ... Host bus controller 3 ... Graphic controller 4 ... Image memory 5 ... Monitor connection card insertion slot 6 ... CRT monitor connection card 7 ... LCD monitor connection card 8 ... TV monitor connection card 10 ... Digital RGB interface Connector 11 ... Analog RGB signal generation circuit 12 ... Analog RGB interface connector 13 ... TMDS signal generation circuit 14 ... TMDS interface connector 15 ... NTSC signal generation circuit 16 ... NTSC interface connector S3 ... Digital RGB signal S10 ... Digital RGB signal S11 ... Analog RGB Signal S13: TMDS signal S15: NTSC signal

Claims (9)

[Claims] 1. A compact personal computer to which various monitors having different interfaces can be connected, comprising: a graphic controller that outputs digital RGB signals; and an analog RGB signal, a TMDS signal, or a digital RGB signal that receives the digital RGB signals. A monitor connection card for converting the signal into at least one of NTSC signals and outputting the converted signal; and a monitor connection card insertion slot which is an interface between the monitor connection card and the graphic controller. Personal computer. 2. The CRT monitor connection card according to claim 1, wherein the monitor connection card includes a CRT monitor connection card that receives the digital RGB signals, converts the digital RGB signals into the analog RGB signals, and outputs the analog RGB signals to a CRT monitor. Personal computer. 3. The personal computer according to claim 1, wherein the monitor connection card includes an LCD monitor connection card that receives the digital RGB signals, converts the digital RGB signals into the TMDS signals, and outputs the TMDS signals to an LCD monitor. Computer. 4. The personal computer according to claim 1, wherein the monitor connection card includes a TV monitor connection card that receives the digital RGB signals, converts the digital RGB signals into the NTSC signals, and outputs the NTSC signals to a TV monitor. Computer. 5. The system according to claim 1, wherein various kinds of monitors are connected by inserting said monitor connection card of a kind to be connected into said monitor connection card insertion slot. The personal computer according to any one of the above. 6. A personal computer main body having a CPU, a host bus controller, the graphic controller, an image memory, and the monitor connection card insertion slot, the CRT monitor connection card, the LCD monitor connection card, A graphic controller, which is controlled by the CPU and the host bus controller, reads image data from the image memory, and reads the digital RGB
The monitor connection card insertion slot is capable of inserting the CRT monitor connection card, the LCD monitor connection card or the TV monitor connection card, and the digital RGB signal is used for the monitor connection card. 6. The system according to claim 1, wherein the card is supplied to the CRT monitor connection card, the LCD monitor connection card, or the TV monitor connection card via a card insertion slot. A personal computer according to the item. 7. The CRT monitor connection card is a connector for connecting to the personal computer main body, the digital RGB interface connector outputting a digital RGB signal, and receiving the digital RGB signal and receiving the digital RGB signal from the digital RGB. 7. An analog RGB signal generation circuit for converting the format to analog RGB and outputting the analog RGB signal, and an analog RGB interface connector for supplying the analog RGB signal to a CRT monitor. Personal computer. 8. The LCD monitor connection card is a connector for connecting to the main body of the personal computer, the digital RGB interface connector for outputting the digital RGB signal, and receiving the digital RGB signal and a digital RGB signal. From TMD to TMS
7. The personal computer according to claim 3, further comprising: a TMDS signal generation circuit that outputs an S signal; and a TMDS interface connector that supplies the TMDS signal to an LCD monitor. 9. The TV monitor connection card is a connector for connecting to the main body of the personal computer, the digital RGB interface connector for outputting the digital RGB signal, and the digital RGB signal. Convert the format from RGB to NTSC and convert the NTS
5. An NTSC signal generating circuit for outputting a C signal, and an NTSC interface connector for supplying the NTSC signal to a TV monitor.
Or the personal computer according to 6.