CN113900846A - Display device, display identification data recovery system and method - Google Patents
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- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/0745—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in an input/output transactions management context
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0793—Remedial or corrective actions
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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Abstract
The invention provides a display device, a display identification data recovery system and a display identification data recovery method.A selection unit sends out a first signal; the control unit is respectively coupled with the selection unit, the first storage unit and the second storage unit, receives the first signal, reads the first EDID data of the first storage unit to obtain a first checksum value of the first EDID data after the control unit receives the first signal, and stores the first checksum value into the first array; the control unit writes the first EDID data into the second storage unit to obtain second EDID data, reads the second EDID data of the second storage unit to obtain a second checksum value of the second EDID data, stores the second checksum value into the second array, and judges that the first EDID data is recovered when the second array is equal to the first array, so that the display identification data can be recovered by OSD selection for calculation and judgment.
Description
Technical Field
The present invention relates to a display device, a display identification data recovery system and a display identification data recovery method, and more particularly, to a display device, a display identification data recovery system and a display identification data recovery method using a display operation interface.
Background
The Display identification Data (EDID) is a standard related to Display identification Data that is set by VESA (Video Electronics Standards Association) when a DDC (Display Data Channel) Display Data Channel communication protocol is set. EDID is stored in DDC memory in the display, and when the computer host is connected with the display, the computer host can read the EDID stored in the DDC memory of the display through the DDC channel.
The situation that part of the EDID of the displayer is changed at present on the market causes that the displayer cannot display or display abnormity.
Therefore, there is a need to design a new display device, a system and a method for recovering display identification data to overcome the above-mentioned drawbacks.
Disclosure of Invention
The present invention provides a Display device, a Display identification data recovery system and a method thereof, which can perform calculation and judgment by selecting through a Display operation interface (OSD) to recover Display identification data.
To achieve the above object, the present invention provides a display identification data recovery system, comprising: a selection unit which sends out a first signal; a control unit coupled to the selection unit, the control unit receiving the first signal; the first storage unit is coupled with the control unit, when the control unit receives the first signal, the control unit reads the first EDID data of the first storage unit to obtain a first checksum value of the first EDID data, and the control unit stores the first checksum value into a first array; and the second storage unit is coupled with the control unit, when the first checksum value is stored in the first array, the control unit writes the first EDID data into the second storage unit to obtain second EDID data, the control unit reads the second EDID data of the second storage unit to obtain a second checksum value of the second EDID data, the control unit stores the second checksum value into the second array, and when the second array is equal to the first array, the control unit judges that the recovery of the first EDID data is finished.
Preferably, the electronic device further includes a first interface unit, the first interface unit is coupled to the control unit, the first interface unit corresponds to the first EDID data, and the first EDID data is stored in the first storage unit.
Preferably, the device further comprises a calculating unit, the calculating unit is coupled to the control unit, the first storage unit and the second storage unit, when the control unit reads the first EDID data of the first storage unit, the control unit sends the first EDID data to the calculating unit, and the calculating unit reads each first byte of the first EDID data and then accumulates and sums the first bytes to obtain the first checksum value; when the control unit reads the second EDID data of the second storage unit, the control unit sends the second EDID data to the calculation unit, and the calculation unit reads each second byte of the second EDID data and then accumulates and sums the second bytes to obtain the second checksum value.
Preferably, the apparatus further includes a third storage unit, the third storage unit is coupled to the control unit, when the control unit determines that the second array is equal to the first array, the control unit reads the third EDID data of the first storage unit to obtain a third checksum value of the third EDID data, the control unit stores the third checksum value in the third array, the control unit writes the third EDID data in the third storage unit to obtain a fourth EDID data, the control unit reads the fourth EDID data of the third storage unit to obtain a fourth checksum value, the control unit stores the fourth checksum value in the fourth array, and when the fourth array is equal to the third array, the control unit determines that the third EDID data is recovered.
Preferably, the apparatus further comprises a second interface unit, the second interface unit is coupled to the control unit, the second interface unit corresponds to the third EDID data, and the third EDID data is stored in the first storage unit.
The invention also provides a display device comprising the display identification data recovery system.
The invention also provides a display identification data recovery method, which is used for a display identification data recovery system and is characterized by comprising the following steps: sending out a first signal by a selection unit; receiving the first signal by a control unit; reading first EDID data of a first storage unit to obtain a first checksum value of the first EDID data; storing the first checksum value in a first array; writing the first EDID data into a second storage unit to obtain second EDID data; reading the second EDID data of the second storage unit to obtain a second checksum value of the second EDID data; storing the second checksum value in a second array; and when the second array is equal to the first array, judging that the recovery of the first EDID data is finished.
Preferably, the method further comprises: and storing the first EDID data corresponding to the first interface unit in the first storage unit.
Preferably, the method further comprises: after the first EDID data of the first storage unit is read, the first EDID data is sent to a computing unit; reading each first byte of the first EDID data by the computing unit and then accumulating and summing the first bytes to obtain a first checksum value; when the second EDID data of the second storage unit is read, the second EDID data is sent to the computing unit; and reading each second byte of the second EDID data by the computing unit and then accumulating and summing the second bytes to obtain the second checksum value.
Preferably, the method further comprises: when the second array is judged to be equal to the first array, reading third EDID data of the first storage unit to obtain a third checksum value of the third EDID data; storing the third checksum value in a third array; writing the third EDID data into the third storage unit to obtain fourth EDID data; reading the fourth EDID data of the third storage unit to obtain a fourth checksum value; storing the fourth checksum value in a fourth array; and when the fourth array is equal to the third array, judging that the third EDID data is recovered.
Preferably, the method further comprises: and storing the third EDID data corresponding to the second interface unit in the first storage unit.
Compared with the prior art, the display device, the display identification data recovery system and the display identification data recovery method provided by the embodiment of the invention send out the first signal by the selection unit (namely OSD); receiving a first signal by a control unit; reading the first EDID data of the first storage unit to obtain a first checksum value of the first EDID data; storing the first checksum value in a first array; writing the first EDID data into a second storage unit to obtain second EDID data; reading second EDID data of the second storage unit to obtain a second checksum value of the second EDID data; storing the second checksum value in a second array; when the second array is equal to the first array, judging that the first EDID data is recovered; when the second array is not equal to the first array, returning to execute; thus, the OSD selection can be used to perform calculation and judgment to recover the display identification data.
Drawings
FIG. 1 is a diagram illustrating a display identification data recovery system according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for recovering display identification data according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for recovering display identification data according to another embodiment of the present invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, fig. 1 is a schematic diagram of a display identification data recovery system according to an embodiment of the invention. According to the display identification data recovery system 100 provided by the embodiment of the present invention, the display identification data recovery system 100 includes a selection unit 10, a control unit 11, a first storage unit 121 and a second storage unit 122, wherein the selection unit 10 sends a first signal 111; the control unit 11 is coupled to the selection unit 10, the control unit 11 receives the first signal 111, the first storage unit 121 is coupled to the control unit 11, when the control unit 11 receives the first signal 111, the control unit 11 reads the first EDID data 1211 of the first storage unit 121 to obtain a first checksum value of the first EDID data 1211, and the control unit 11 stores the first checksum value in the first array C1; the second storage unit 122 is coupled to the control unit 11, when the first checksum value is stored in the first array C1, the control unit 11 writes the first EDID data 1211 in the second storage unit 122 to obtain the second EDID data 1221, the control unit 11 reads the second EDID data 1221 in the second storage unit 122 to obtain the second checksum value of the second EDID data 1221, the control unit 11 stores the second checksum value in the second array S1, and when the second array S1 is equal to the first array C1, the control unit 11 determines that the recovery of the first EDID data 1211 is complete. Specifically, the selection unit 10 is an OSD interface, the user selects the EDID data to restore the factory setting function through the OSD interface, the OSD sends the first signal 111 to the control unit 11, and the control unit 11 then performs the EDID data restoring function, so that the display identification data can be restored through calculation and judgment performed by the OSD selection.
Referring to fig. 1, the selection unit 10 is embodied as an OSD interface, and currently, a user manually adjusts the display setting through the OSD. The user needs to manually check out the operation interface of the display and perform some adjustment actions, and needs to spend a long time to be familiar with each adjustment parameter, so that the user is difficult to clearly determine which parameters need to be adjusted to achieve the best display effect on different display frames, and therefore, the display cannot be displayed or is abnormal due to the fact that the parameters are changed incorrectly when being manually adjusted. When the invention is implemented, a user calls the OSD interface through the keys of the display, and the EDID data is recovered by the selection of the OSD interface, namely, the user sends the first signal 111 to the control unit 11 through the selection unit 10, and the control unit 11 receives the first signal 111 and then recovers the EDID data through calculation and judgment.
Referring to fig. 1, the control Unit 11 is specifically a main control chip MCU (micro control Unit), and the control Unit 11 communicates with the first storage Unit 121 and the second storage Unit 122 respectively through an I2C (two-wire serial bus), which is not limited to this case.
Referring to fig. 1, the first storage unit 121 is specifically a main storage chip, and is generally an EEPROM (Electrically Erasable and Programmable read only memory) or a Flash EEPROM (Flash memory), where the first storage unit 121 stores adjustment or setting parameters commonly used by products, including preset EDID data and the like, that is, the first storage unit 121 stores preset first EDID data 1211.
Referring to fig. 1, the second storage unit 122 is specifically a storage chip, and is generally an EEPROM, the second storage unit 122 stores EDID data of an Interface, the Interface generally refers to external interfaces of displays such as VGA (Video Graphics Array), DVI (Digital Video Interface), HDMI (High Definition Multimedia Interface), and Typc-C, and each external Interface needs to store the EDID data by using one EEPROM. In specific implementation, the display identification data recovery system 100 further includes a first interface unit 131, the first interface unit 131 is coupled to the control unit 111, the first interface unit 131 corresponds to the first EDID data 1211, the first EDID data is stored in the first storage unit 121, that is, the first interface unit 131 is one of VGA, DVI, HDMI, and Typc-C, the EDID data corresponding to the first interface unit 131 is stored in the first storage unit 121, so that the control unit 11 can write the EDID data into the second storage unit 122.
Referring to fig. 1, the display identification data recovery system 100 further includes a calculating unit 14, the calculating unit 14 is coupled to the control unit 11, the first storage unit 121, and the second storage unit 122, respectively, when the control unit 11 reads the first EDID data 1211 of the first storage unit 121, the control unit 11 sends the first EDID data 1211 to the calculating unit 14, and the calculating unit 14 reads each first byte of the first EDID data 1211 and sums up the first bytes to obtain a first checksum value; after the control unit 11 reads the second EDID data 1221 in the second storage unit 122, the control unit 11 sends the second EDID data 1221 to the calculation unit 14, and the calculation unit 14 reads each second byte of the second EDID data 1221 and then accumulates and sums the second bytes to obtain a second checksum value. In specific implementation, the EDID is divided into two lengths of 128 bytes and 256 bytes, when the control unit 11 reads the first EDID data 1211 of the first storage unit 121, the control unit 11 sends the first EDID data 1211 to the calculation unit 14, and the calculation unit 14 reads each byte of the first EDID data 1211, calculates the accumulated sum (i.e., the first checksum value) of each byte, and stores the calculated sum into the first array C1; when the control unit 11 reads the second EDID data 1221 of the second storage unit 122, the control unit 11 transmits the second EDID data 1221 to the calculation unit 14, and the calculation unit 14 reads each byte of the second EDID data 1221 and calculates the cumulative sum (i.e., the second checksum value) of each byte, and stores the cumulative sum in the second array S1. Whether the display identification data of the first interface unit 131 is restored is determined by determining whether the first checksum value and the second checksum value are equal. When the first array C1 is equal to the second array S1, the OSD displays PASS, i.e., the display identification data of the first interface unit 131 is restored; when the first array C1 is unequal to the second array S1, the control unit 11 continues to read the first EDID data 1211 of the first storage unit 121 to obtain a first checksum value of the first EDID data 1211, and the control unit 11 stores the first checksum value into the first array C1; the control unit 11 further writes the first EDID data 1211 into the second storage unit 122 to obtain the second EDID data 1221, the control unit 11 reads the second EDID data 1221 of the second storage unit 122 to obtain a second checksum value of the second EDID data 1221, and the control unit 11 stores the second checksum value into the second array S1; whether the second array S1 is equal to the first array C1 is determined, and display identification data recovery of the first interface unit 131 is achieved through this loop, so that the problem that display cannot be performed or display is abnormal when the EDID of the display is changed is solved, and recovery of the EDID from the factory is achieved by one key of the OSD.
Referring to fig. 1, the display identification data recovery system 100 further includes a third storage unit 123, the third storage unit 123 is coupled to the control unit 11, when the control unit 11 determines that the second array S1 is equal to the first array C1, the control unit 11 reads the third EDID data 1212 of the first storage unit 121 to obtain a third checksum value of the third EDID data 1212, and the control unit 11 stores the third checksum value in the third array C2; the control unit 11 writes the third EDID data 1212 into the third storage unit 123 to obtain the fourth EDID data 1231, the control unit 11 reads the fourth EDID data 1231 of the third storage unit 123 to obtain the fourth checksum value, the control unit 11 stores the fourth checksum value into the fourth array S2, and when the fourth array S2 is equal to the third array C1, the control unit 11 determines that the recovery of the third EDID data 1212 is completed. In specific implementation, the display identification data recovery system 100 further includes a second interface unit 132, the second interface unit 132 is coupled to the control unit 111, the second interface unit 132 corresponds to the third EDID data 1212, the third EDID data is stored in the first storage unit 121, that is, the second interface unit 132 is one of VGA, DVI, HDMI, and Typc-C, the EDID data corresponding to the second interface unit 132 is stored in the first storage unit 121, so that the control unit 11 can write the EDID data into the third storage unit 123. The display identification data recovery system 100 may further include a third interface unit, a fourth interface unit, and the like, which are the same in principle and are not described in detail.
Referring to fig. 1, after the control unit 11 reads the third EDID data 1212 of the first storage unit 121, the control unit 11 sends the third EDID data 1212 to the calculation unit 14, and the calculation unit 14 reads each byte of the third EDID data 1212, calculates the cumulative sum (i.e., the third checksum value) of each byte, and stores the cumulative sum into the third array C2; when the control unit 11 reads the fourth EDID data 1231 from the third storage unit 123, the control unit 11 sends the fourth EDID data 1231 to the calculation unit 14, and the calculation unit 14 reads each byte of the fourth EDID data 1231, calculates the cumulative sum (i.e., the fourth checksum value) of each byte, and stores the cumulative sum in the fourth array S2. Whether the display identification data of the second interface unit 132 is restored is determined by determining whether the third checksum value and the fourth checksum value are equal. When the third array C2 is equal to the fourth array S2, the OSD displays PASS, i.e., the display identification data of the second interface unit 131 is restored; when the third array C2 is unequal to the fourth array S2, continuing to read the third EDID data 1212 of the first storage unit 121 to obtain a third checksum value of the third EDID data 1212, and the control unit 11 stores the third checksum value in the third array C2; the control unit 11 writes the third EDID data 1212 into the third storage unit 123 to obtain the fourth EDID data 1231, the control unit 11 reads the fourth EDID data 1231 of the third storage unit 123 to obtain a fourth checksum value, and the control unit 11 stores the fourth checksum value into the fourth array S2; and judging whether the third array C2 is equal to the fourth array S2, and realizing display identification data recovery by the circulation, so that the problem that the display cannot be displayed or is abnormal after the EDID of the display is changed is solved, and the EDID is recovered to factory settings by one-key OSD.
The display identification data recovery system 100 as described above may correspond to a display device, which is a display with OSD.
Referring to fig. 2, fig. 2 is a flowchart illustrating a display identification data recovery method according to an embodiment of the invention. The invention also provides a display identification data recovery method 101, which is used for the automatic picture identification setting system 100. Referring to fig. 1, first, step S10 is executed to send out the first signal 111 through the selection unit 1; next, step S12 is executed to receive the first signal 111 by the control unit 11; next, step S14 is executed to read the first EDID data 1211 of the first storage unit 121 to obtain a first checksum value of the first EDID data 1211; then, step S16 is executed to store the first checksum value into the first array C1; next, step S18 is executed to write the first EDID data 1211 into the second storage unit 122 to obtain second EDID data 1221; next, step S20 is executed to read the second EDID data 1221 of the second storage unit 122 to obtain a second checksum value of the second EDID data 1221; next, step S22 is executed to store the second checksum value into the second array S1; next, step S24 is executed, when the second array S1 is equal to the first array C1, it is determined that the recovery of the first EDID data 1211 is complete. The selecting unit 10 is an OSD interface, the user selects the EDID data to restore the factory setting function through the OSD interface, the OSD sends the first signal 111 to the control unit 11, and the control unit 11 then performs the EDID data restoring function, so that the display identification data can be restored by performing calculation and judgment through OSD selection.
Preferably, the first EDID data 1211 corresponding to the first interface unit 131 is stored in the first storage unit 121.
Preferably, after the first EDID data 1211 of the first storage unit 121 is read, the first EDID data 1211 is sent to the calculation unit 14; reading each first byte of the first EDID data 1211 by the calculating unit 14, and then accumulating and summing the first bytes to obtain a first checksum value; when the second EDID data 1221 of the second storage unit 122 is read, the second EDID data 1221 is sent to the calculation unit 14; after reading the second bytes of the second EDID data 1221 by the calculating unit 14, the second bytes are accumulated and summed to obtain a second checksum value.
Preferably, when the second array S1 is determined to be equal to the first array C1, the third EDID data 1212 of the first memory cell 121 is read to obtain a third checksum value of the third EDID data 1212; storing the second checksum value in a third array C2; writing the third EDID data 1212 into the third storage unit 123 to obtain fourth EDID data 1231; reading the fourth EDID data 1231 of the third storage unit 123 to obtain a fourth checksum value; storing the fourth checksum value in a fourth array S2; when the fourth array S2 is equal to the third array C1, it is determined that the recovery of the third EDID data 1212 is complete.
Preferably, the third EDID data 1212 corresponding to the second interface unit 132 is stored in the first storage unit 121.
Referring to fig. 3, fig. 3 is a flowchart illustrating a display identification data recovery method according to another embodiment of the present invention. The invention also provides a display identification data recovery method 102, which is used for the automatic picture identification setting system 100. Referring to fig. 1, first, step S30 is executed to recover OSD selection; next, step S32 is executed, the control unit 11 reads the first EDID data 1211 of the first storage unit 121 to obtain a first checksum value of the first EDID data 1211 and stores the first checksum value in the first array C1; next, step S34 is executed, and the control unit 11 writes the first EDID data 1211 to the second storage unit 122 to obtain second EDID data 1221; next, the step S36 is executed, and the control unit 11 reads the second EDID data 1221 of the second storage unit 122 to obtain a second checksum value of the second EDID data 1221 and stores the second checksum value in the second array S1; next, step S38 is executed to determine whether the second array S2 is corresponding to the first array S1, if not, step S32 is executed, if yes, step S40 is executed, the control unit 11 reads the third EDID data 1212 of the first storage unit 121 to obtain a third checksum value of the third EDID data 1212, and stores the third checksum value in the third array C2; next, step S42 is executed, the control unit 11 writes the third EDID data 1212 into the third storage unit 123 to obtain fourth EDID data 1231; next, the step S44 is executed, and the control unit 11 reads the fourth EDID data 1231 of the third storage unit 123 to obtain a fourth checksum value and stores the fourth checksum value in the fourth array S2; then, step S46 is executed to determine whether the fourth array S2 is equal to the third array C2, if not, step S40 is executed, and if yes, step S48 is executed to display PASS through OSD.
In summary, the display device, the display identification data recovery system and the method provided by the present invention include a selection unit, a control unit, a first storage unit and a second storage unit, wherein the selection unit sends a first signal; the control unit is coupled with the selection unit, receives a first signal, the first storage unit is coupled with the control unit, when the control unit receives the first signal, the control unit reads the first EDID data of the first storage unit to obtain a first checksum value of the first EDID data, and the control unit stores the first checksum value into the first array; the second storage unit is coupled with the control unit, when the first checksum value is stored in the first array, the control unit writes the first EDID data into the second storage unit to obtain second EDID data, the control unit reads the second EDID data of the second storage unit to obtain a second checksum value of the second EDID data, the control unit stores the second checksum value into the second array, and when the second array is equal to the first array, the control unit judges that the first EDID data is recovered, so that the OSD selection is used for calculation and judgment to recover the display identification data.
While the present invention has been described in connection with the attached drawings, the embodiments disclosed in the drawings are intended to be illustrative of the preferred embodiments of the present invention and should not be construed as limiting the invention. The scale in the schematic drawings does not represent the scale of actual components for the sake of clarity in describing the required components.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (11)
1. A display identification data recovery system, comprising:
a selection unit which sends out a first signal;
a control unit coupled to the selection unit, the control unit receiving the first signal;
the first storage unit is coupled with the control unit, when the control unit receives the first signal, the control unit reads the first EDID data of the first storage unit to obtain a first checksum value of the first EDID data, and the control unit stores the first checksum value into a first array; and
the second storage unit is coupled with the control unit, when the first checksum value is stored in the first array, the control unit writes the first EDID data into the second storage unit to obtain second EDID data, the control unit reads the second EDID data of the second storage unit to obtain a second checksum value of the second EDID data, the control unit stores the second checksum value into a second array, and when the second array is equal to the first array, the control unit judges that the first EDID data is recovered.
2. The display identification data recovery system of claim 1, further comprising a first interface unit coupled to the control unit, the first interface unit corresponding to the first EDID data, the first EDID data being stored in the first storage unit.
3. The display identification data recovery system of claim 1, further comprising a computing unit, the computing unit being coupled to the control unit, the first storage unit and the second storage unit, respectively, wherein when the control unit reads the first EDID data of the first storage unit, the control unit sends the first EDID data to the computing unit, and the computing unit reads each first byte of the first EDID data and then sums the first bytes to obtain the first checksum value; when the control unit reads the second EDID data of the second storage unit, the control unit sends the second EDID data to the calculation unit, and the calculation unit reads each second byte of the second EDID data and then accumulates and sums the second bytes to obtain the second checksum value.
4. The display identification data recovery system of claim 1, further comprising a third storage unit coupled to the control unit, wherein when the control unit determines that the second array is equal to the first array, the control unit reads the third EDID data of the first storage unit to obtain a third checksum value of the third EDID data, the control unit stores the third checksum value in the third array, the control unit writes the third EDID data in the third storage unit to obtain a fourth EDID data, the control unit reads the fourth EDID data of the third storage unit to obtain a fourth checksum value, the control unit stores the fourth checksum value in the fourth array, and when the fourth array is equal to the third array, the control unit determines that the third EDID data recovery is complete.
5. The display identification data recovery system of claim 4, further comprising a second interface unit coupled to the control unit, the second interface unit corresponding to the third EDID data stored in the first storage unit.
6. A display device comprising the display identification data recovery system according to any one of claims 1 to 5.
7. A display identification data recovery method is used for a display identification data recovery system, and is characterized by comprising the following steps:
sending out a first signal by a selection unit;
receiving the first signal by a control unit;
reading first EDID data of a first storage unit to obtain a first checksum value of the first EDID data;
storing the first checksum value in a first array;
writing the first EDID data into a second storage unit to obtain second EDID data;
reading the second EDID data of the second storage unit to obtain a second checksum value of the second EDID data;
storing the second checksum value in a second array; and
and when the second array is equal to the first array, judging that the recovery of the first EDID data is finished.
8. The display identification data recovery method of claim 6, further comprising: and storing the first EDID data corresponding to the first interface unit in the first storage unit.
9. The display identification data recovery method of claim 6, further comprising:
after the first EDID data of the first storage unit is read, the first EDID data is sent to a computing unit;
reading each first byte of the first EDID data by the computing unit and then accumulating and summing the first bytes to obtain a first checksum value;
when the second EDID data of the second storage unit is read, the second EDID data is sent to the computing unit; and
and reading each second byte of the second EDID data by the computing unit and then accumulating and summing the second bytes to obtain the second checksum value.
10. The display identification data recovery method of claim 6, further comprising:
when the second array is judged to be equal to the first array, reading third EDID data of the first storage unit to obtain a third checksum value of the third EDID data;
storing the third checksum value in a third array;
writing the third EDID data into the third storage unit to obtain fourth EDID data;
reading the fourth EDID data of the third storage unit to obtain a fourth checksum value;
storing the fourth checksum value in a fourth array; and
and when the fourth array is equal to the third array, judging that the third EDID data is recovered.
11. The display identification data recovery method of claim 9, further comprising: and storing the third EDID data corresponding to the second interface unit in the first storage unit.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080070094A (en) * | 2007-01-25 | 2008-07-30 | 주식회사 디엠테크놀로지 | Display apparatus comprising a function for recovering edid and the method thereof |
| CN101393732A (en) * | 2007-09-18 | 2009-03-25 | 中强光电股份有限公司 | Interface device and method for writing spreading display recognition data |
| CN110955916A (en) * | 2018-09-26 | 2020-04-03 | 深信服科技股份有限公司 | Data integrity protection method, system and related equipment |
-
2021
- 2021-10-15 CN CN202111201714.5A patent/CN113900846A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080070094A (en) * | 2007-01-25 | 2008-07-30 | 주식회사 디엠테크놀로지 | Display apparatus comprising a function for recovering edid and the method thereof |
| CN101393732A (en) * | 2007-09-18 | 2009-03-25 | 中强光电股份有限公司 | Interface device and method for writing spreading display recognition data |
| CN110955916A (en) * | 2018-09-26 | 2020-04-03 | 深信服科技股份有限公司 | Data integrity protection method, system and related equipment |
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