CN1118017C - Monitor communicable with personal computer - Google Patents
Monitor communicable with personal computer Download PDFInfo
- Publication number
- CN1118017C CN1118017C CN97112493A CN97112493A CN1118017C CN 1118017 C CN1118017 C CN 1118017C CN 97112493 A CN97112493 A CN 97112493A CN 97112493 A CN97112493 A CN 97112493A CN 1118017 C CN1118017 C CN 1118017C
- Authority
- CN
- China
- Prior art keywords
- data
- display
- personal computer
- storer
- communication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
- G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
- G09G1/14—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
- G09G1/16—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible the pattern of rectangular co-ordinates extending over the whole area of the screen, i.e. television type raster
- G09G1/165—Details of a display terminal using a CRT, the details relating to the control arrangement of the display terminal and to the interfaces thereto
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/08—Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Controls And Circuits For Display Device (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
Picture adjustment data for the monitor is written to or read from the memory 1 built into the monitor by the computer. The written or read data may be displayed. An interface 2, that may be coupled to a serial peripheral port of the computer, e.g the printer port, has a clock line and a data line coupled between the computer and the memory of the monitor. The computer controls the data to and from the memory by serial peripheral interface communication (SPI).
Description
Technical field
The present invention relates to a kind of can with the display of personal computer (PC) communication.Specifically, the present invention relates to a kind of can with the display of PC communication, the data of wherein controlling the display image show state can write in this display internal storage or in this display internal memory with the interface of PC by itself and display internal storage reads.
Background technology
Generally speaking, regulating or the contrast of control display, brightness, when level and vertical pulse, use be variable resistor.Recently, a kind of have built-in microcomputer and dropped into commercial the use with the display of control display image show state.In this display, image display status is that the control button that provides with outside display is controlled.Also be connected to a light emitting diode (LED) or liquid crystal display (LCD) panel in outside display in addition, be used for controlling the contrast of display like this, brightness, the control signal of level and vertical pulse and just be presented on the panel so that use by the image display status of this control signal control.
Simultaneously, disclose a kind of display, had interface between microcomputer and the PC in this display.For this display, its image display status is subjected to control of microcomputer, can make it with the keyboard operation of PC directly to be presented on the screen of this display.Therefore need not install LCD or LED panel and control button again additional in the outside of display.
But, can with the conventional display defectiveness of PC communication, promptly image display status can not be regulated and control, but can only on screen, show the show state that the information of relevant show state is conditioned to allow the user know.
Summary of the invention
An object of the present invention is to solve the problem that relates in the correlation technique, and provide a kind of can with the display of PC communication, wherein be stored in the display data in the internal memory and read or write this internal memory by the interface between this internal memory and PC with PC.
To achieve these goals, a kind of display storer, that be used for video data that has is provided, this storer can with personal computer (PC) communication, this display comprises: the series peripheral interface that can be coupled to communicatedly between described PC and the described storer, described interface has clock line and data line, and wherein said PC to described storer with the series peripheral interface Communication Control by described interface and write data or the operation of sense data from described storer; And the key entry device, this device comprises that communication mode key, the data read/write of determining communication mode determine key and be used for input data values so that write the numerical key of described data.
To achieve these goals, also provide a kind of system to comprise: a personal computer (PC), it has printer port, is used for the serial communication between this PC and the printer; One can with the display with storer of described PC communication, be used for storage and show be provided with; The key entry device that is connected with described PC comprises that also the communication mode key is used for determining communication mode, and a data read/write is determined key, and a numerical key is used for input data values; One controller is arranged among the described PC, is used for according to the series peripheral interface communication of the message from keyboard execution of importing with described key entry device with described storer; And interface, be coupled between described controller and the described storer by described printer port, and have a clock lines and a data line, between described controller and described storer, connecting, so that described controller writes described video data in the described storer by described printer port or reads out in described video data in the described storer as interface.
Description of drawings
Above-mentioned purpose of the present invention and other feature and advantage will be by will be more obvious to the explanation of its preferred embodiment with reference to the accompanying drawings, wherein:
Fig. 1 be according to the present invention can with the block scheme of the display of PC communication.
Fig. 2 A and 2B are the oscillograms that is used for clock signal and data on the clock line of SPI communication and the data line according to the present invention.
Fig. 3 is the process flow diagram of explanation according to data read/write operation of the present invention.
Embodiment
Fig. 1 be according to of the present invention can with the block scheme of the display of PC communication.Adopt the storer 1 of SPI communication to be placed in display interior with reference to figure 1,, one has clock line and data line is coupled to the interface section 2 between the internal memory 1 in I/O port (as the printer port of PC middle controller 3) and the display.Controller 3 in the PC is determined the data of being deposited in the input read-out display internal memory of key and data read/write key by clock line and data line according to the communication mode of key input section 4 or with in the writing data into memory 1.
Specifically, interface section 2 comprises one first phase inverter NT1, links to each other with the printer port P2 pin of controller 3, so that the clock signal of printer port P2 pin output is anti-phase, is used for the control of its clock line; One second phase inverter NT2 will feed back to the printer port pin P15 of controller 3 by the clock signal that phase inverter NT1 sends storer 1 to, and controller 3 just can be checked the state of clock line in view of the above like this; One the 3rd phase inverter NT3 links on the printer port pin P3 of controller 3, so that the data of printer port pin P3 output are anti-phase, thereby controls its data line; And one the 4th phase inverter NT4, the data that are used for sending storer 1 to by phase inverter NT3 feed back on the printer port pin P10 of controller 3, and controller 3 can be checked the state of data line thus.
In Fig. 1, label R1 represents to lift resistance to R4.
With reference now to Fig. 1,, 2A, 2B and Fig. 3 explanation said structure according to the present invention can with the operation of the display of PC communication.According to the present invention, the data that display image is regulated are that the SPI communication with PC writes the storer 1 of display or reads from storer 1.The data presentation that writes or read is on the screen of display.
With reference to figure 1, for clock line by interface section 2 and the data in the data line readout memory 1 or with writing data into memory 1, the storer 1 in the display is coupled with the controller 3 in the PC.Specifically, printer port pin P2 and P3 are coupled by the storer 1 in interface section 2 and the display.
Fig. 2 A and 2B want write store or the clock signal of reading from storer and the oscillogram of data, and Fig. 3 is the process flow diagram according to data read/write operation of the present invention.
At first, in order between PC and display, to carry out communication, controller 3 in the PC is with the data line and the clock line initialization of interface section 2, promptly they are changed to logic ' height ' level (the step S1 among Fig. 3), and wait for the key entry (the step S2 among Fig. 3) of data read/write according to communication mode key signals by key input section 4 inputs.
Thereafter, if imported with writing data into memory 1 or key signals (step S3 among Fig. 3) that data in the storer 1 are read, controller 3 just determines whether the key signals consistent with data read command or data write order (the step S4 among Fig. 3) imported, and produce the starting condition of a data communication, to carry out corresponding program respectively.
The beginning condition is to provide as follows, controller 3 at first is changed to clock line logic ' low ' state, through after the schedule time, for example surpassed 10 μ S after, controller 3 is changed to logic ' low ' level with data line, as shown in " A " during among Fig. 2 A and Fig. 2 B like that.
If imported the key signals in the writing data into memory 1, controller 3 passes through clock signal and data-signal among the phase inverter NT1 and NT3 write store 1 of interface section 2 (step S8 among Fig. 3 and S9).At this moment, clock signal and the data exported by phase inverter NT1 and NT3 also feed back to controller 3 by phase inverter NT2 and NT4 respectively, and controller 3 checks whether clock signals and data are normally exported by clock line and data line like this.Then, controller 3 is in the writing data into memory 1, and the data content of write store 1 is presented on the screen of display (the step S10 among Fig. 3).
Simultaneously, be used for the key signals of data in the readout memory 1 if imported, controller 3 outputs to clock signal in the storer 1 by phase inverter NT1, receive the data (the step S5 among Fig. 3) that response clock signal is read from storer 1 by phase inverter then, at this moment, controller 3 also shows the data content of reading (the step S6 among Fig. 3) from storer 1 on the screen of display.
If when between the storer 1 of the controller 3 of PC and display, carrying out aforesaid data communication, inputed or outputed the 9th time clock by clock line, that is to say, if when clock signal becomes high level 9 times after having produced entry condition, controller 3 know finished shown in Fig. 2 A and 2B in during the transmission/reception of the byte data shown in " B ".By repeating aforesaid operations, between controller 3 and storer 1, carry out data transmission/reception with regard to a byte one byte ground.At this moment, from storer 1, read or just be presented on the screen of display by controller 3 to the data that storer 1 writes.Be appreciated that the present invention can make the user control the show state of display easily by personal computer, and needn't remove the external control switch and the button of operation display.
If finish above-mentioned data read/write operation, controller 3 just produces a stop condition, to stop the data read/write operation, shown in " C " during among Fig. 2 A and the 2B.
For example, controller 3 at PC writes under the data conditions in the storer 1 of display, controller 3 is controlled the state of its printer port pin P2 and P3 in order to send data by the SPI communication, so that provide the signal shown in Fig. 2 A and the 2B by clock line and data line.
Specifically, if clock line will become logic ' low ' state, the output of printer port pin two just becomes logic ' height ', and if clock line will become logic ' height ' state the time, the output of printer port pin two just becomes logic ' low '.The control mode of data line state is the same with the clock line control mode.
Like this, the user just can write the data of being deposited in data or the readout memory 1 with PC in the storer 1 of display.The data of reading or writing also are presented on the screen of display and use with convenient.
As mentioned above, according to the present invention, realizing the PI communication by the interface between structure PC and the display with the storer of SPI type between PC and the display.Data can be read or write store thus, and do not need the printed circuit board (PCB) of storer with display separated.
Although the present invention is described with regard to its preferred embodiment at this, those skilled in the art should be appreciated that without departing from the spirit and scope of the present invention, can to the present invention do on the various forms and details on modification.
Claims (8)
1. one kind has display storer, that be used for video data, this storer can with the personal computer communication, this display comprises:
The series peripheral interface that can be coupled to communicatedly between described personal computer and the described storer, described interface has clock line and data line, and wherein said personal computer to described storer with the series peripheral interface Communication Control by described interface and write data or the operation of sense data from described storer; And
Key in device, this device comprises that communication mode key, the data read/write of determining communication mode determine key and be used for input data values so that write the numerical key of described data.
2. a kind of display as claimed in claim 1 is characterized in that described data comprise the image display status such as the contrast of regulating described display, brightness, the data of level and vertical pulse.
3. a kind of display as claimed in claim 1 is characterized in that described personal computer controls the demonstration of described data on described display during the described data of read/write.
4. a kind of display as claimed in claim 1, it is characterized in that described interface comprises a plurality of phase inverters, be used for carrying out anti-phase to described clock signal and described data between described personal computer and described display by described clock line and described data line communication, and with described clock signal be sent to the described data of going in the described storer and feed back in the described personal computer, so that described personal computer is checked the state of described clock line and described data line.
5. a system comprises:
A personal computer, it has printer port, is used for the serial communication between this personal computer and the printer;
One can with the display with storer of described personal computer communication, be used for storage and show be provided with;
The key entry device that is connected with described personal computer comprises that also the communication mode key is used for determining communication mode, and a data read/write is determined key, and a numerical key is used for input data values;
One controller is arranged in the described personal computer, is used for according to the series peripheral interface communication of the message from keyboard execution of importing with described key entry device with described storer; And
An interface, be coupled between described controller and the described storer by described printer port, and have a clock lines and a data line, between described controller and described storer, connecting, so that described controller writes described video data in the described storer by described printer port or reads out in described video data in the described storer as interface.
6. a kind of system as claimed in claim 5 is characterized in that described data comprise the image display status such as the contrast of regulating described display, brightness, the data of level and vertical pulse.
7. a kind of system as claimed in claim 5 is characterized in that described personal computer controlling the demonstration of described data on described indicator screen during the described data of read/write.
8. a kind of system as claimed in claim 5, it is characterized in that described interface comprises a plurality of phase inverters, be used for carrying out anti-phase to described clock signal and described data between described personal computer and described display by described clock line and described data line communication, and with described clock signal be sent to the described data of going in the described storer and feed back in the described personal computer, so that described personal computer is checked the state of described clock line and described data line.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR19960022043A KR100196691B1 (en) | 1996-06-18 | 1996-06-18 | Monitor communicated with PC |
| KRP9622043 | 1996-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1172984A CN1172984A (en) | 1998-02-11 |
| CN1118017C true CN1118017C (en) | 2003-08-13 |
Family
ID=19462295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97112493A Expired - Fee Related CN1118017C (en) | 1996-06-18 | 1997-06-18 | Monitor communicable with personal computer |
Country Status (6)
| Country | Link |
|---|---|
| KR (1) | KR100196691B1 (en) |
| CN (1) | CN1118017C (en) |
| BR (1) | BR9702416A (en) |
| GB (1) | GB2314493B (en) |
| ID (1) | ID17146A (en) |
| MX (1) | MX9704523A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100239119B1 (en) | 1996-11-29 | 2000-01-15 | 구자홍 | The communication of monitor and pc |
| KR100325759B1 (en) * | 1998-04-27 | 2002-06-26 | 윤종용 | Method for storing screen data of display device having memory |
| KR100327369B1 (en) * | 1999-07-31 | 2002-03-06 | 구자홍 | Apparatus and method for interfacing video information of computer system |
| KR20040070559A (en) * | 2003-02-04 | 2004-08-11 | 엘지전자 주식회사 | An display device having recovery function and method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456923A1 (en) * | 1990-05-14 | 1991-11-21 | International Business Machines Corporation | Display system |
| EP0708399A2 (en) * | 1994-10-14 | 1996-04-24 | International Business Machines Corporation | Apparatus for adding a display data channel to existing display |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI91923C (en) * | 1991-09-20 | 1994-08-25 | Icl Personal Systems Oy | Procedure for controlling a display in a display system and display system and display |
| JPH06259050A (en) * | 1993-02-16 | 1994-09-16 | Internatl Business Mach Corp <Ibm> | Video monitor and video adapter,as well as method and system for generation of dynamic communication link between them |
| WO1995019620A1 (en) * | 1994-01-14 | 1995-07-20 | Oakleigh Systems, Inc. | Remote control of display functions |
| GB2291770A (en) * | 1994-07-23 | 1996-01-31 | Ibm | Display apparatus with data communication channel to control monitor settings |
| GB2302489A (en) * | 1995-06-15 | 1997-01-15 | Ibm | Computer monitor with user-selectable communication protocol |
-
1996
- 1996-06-18 KR KR19960022043A patent/KR100196691B1/en not_active IP Right Cessation
-
1997
- 1997-06-18 BR BR9702416A patent/BR9702416A/en not_active IP Right Cessation
- 1997-06-18 MX MX9704523A patent/MX9704523A/en not_active IP Right Cessation
- 1997-06-18 ID IDP972088A patent/ID17146A/en unknown
- 1997-06-18 GB GB9712847A patent/GB2314493B/en not_active Expired - Fee Related
- 1997-06-18 CN CN97112493A patent/CN1118017C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456923A1 (en) * | 1990-05-14 | 1991-11-21 | International Business Machines Corporation | Display system |
| EP0708399A2 (en) * | 1994-10-14 | 1996-04-24 | International Business Machines Corporation | Apparatus for adding a display data channel to existing display |
Also Published As
| Publication number | Publication date |
|---|---|
| MX9704523A (en) | 1997-12-31 |
| ID17146A (en) | 1997-12-04 |
| GB9712847D0 (en) | 1997-08-20 |
| KR980004063A (en) | 1998-03-30 |
| GB2314493A (en) | 1997-12-24 |
| CN1172984A (en) | 1998-02-11 |
| KR100196691B1 (en) | 1999-06-15 |
| BR9702416A (en) | 1998-09-15 |
| GB2314493B (en) | 1998-12-16 |
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Legal Events
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030813 |