CN117149118A - Display method, security chip, video card and computer storage medium - Google Patents
Display method, security chip, video card and computer storage medium Download PDFInfo
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- CN117149118A CN117149118A CN202311104386.6A CN202311104386A CN117149118A CN 117149118 A CN117149118 A CN 117149118A CN 202311104386 A CN202311104386 A CN 202311104386A CN 117149118 A CN117149118 A CN 117149118A
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000004891 communication Methods 0.000 claims abstract description 42
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- 238000004590 computer program Methods 0.000 claims description 14
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- 230000008054 signal transmission Effects 0.000 description 5
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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
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
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Abstract
The application discloses a display method, a security chip, a visual card and a computer storage medium, wherein the method is applied to the security chip, and the security chip comprises a communication module and a state detection port, and comprises the following steps: receiving a control instruction sent by a control piece through a communication module; extracting target information corresponding to the control instruction according to the control instruction; acquiring the busy and idle state of the display screen through a state detection port of the security chip; when the display screen is determined to be in an idle state, setting the level of a level control port of the security chip to be a first level; and according to the protocol format of the target information, adjusting the level of the level selection port of the security chip so as to enable the target information to be transmitted to the display screen through the data transmission port. Based on the control, can directly accomplish the control to the display screen through the safety chip, increased the function and the effect of safety chip, need not to additionally arrange little control unit control display screen, simplified the process of safety chip control display screen, improve the suitability of visual card.
Description
Technical Field
The application belongs to the technical field of intelligent cards, and particularly relates to a display method, a security chip, a visual card and a computer storage medium.
Background
The visual card is a novel technological product, and information stored in the visual card can be displayed to inform a user.
In general, the visual card comprises a security chip, a microcontroller and a display screen, wherein the security chip is connected with the microcontroller, the security chip is connected with the display screen, and after the visual card is in communication connection with the card reader through the security chip, the card reader provides stable power supply for the visual card so that the security chip, the microcontroller and the display screen can work normally; and the card reader sends a control instruction to the visual card, and the safety chip sends display information corresponding to the information instruction to the microcontroller after receiving the control instruction, and then the microcontroller sends the display information to the display screen so that the microcontroller drives the display screen to display the display information.
The display mode can be completed by mutually matching a plurality of electronic components such as the safety chip, the microcontroller and the display screen, and the electronic components occupy the internal space of the visual card, so that the miniaturization development of the visual card is not facilitated, the use cost of a user is increased, and the popularization and the application of the visual card are not facilitated.
Disclosure of Invention
The embodiment of the application provides a display method, a security chip, a visual card and a computer storage medium, which simplify the process of controlling a display screen by the security chip.
According to a first aspect of the present application, an embodiment of the present application provides a display method applied to a security chip, the security chip including a communication module and a status detection port, the method including:
receiving a control instruction sent by control software through a communication module;
extracting target information corresponding to the control instruction according to the control instruction;
acquiring the busy and idle state of the display screen through a state detection port;
when the display screen is determined to be in an idle state, setting the level of a level control port of the security chip to be a first level;
and according to the protocol format of the target information, adjusting the level of the level selection port of the security chip so as to enable the target information to be transmitted to the display screen through the data transmission port.
Optionally, the security chip further includes a reset signal port, and before the busy state of the display screen is acquired through the state detection port of the security chip, the method further includes:
and sending a clearing signal to the display screen through the reset signal port so as to reset the display information of the display screen.
Optionally, the secure chip further comprises a clock signal port, the method further comprising:
and sending a clock signal to the display screen through the clock signal port, so as to maintain the stability of the transmission port for transmitting the target information.
Optionally, adjusting the level of the level selection port according to the protocol format of the target information so that the target information is transmitted to the display screen through the data transmission port includes:
in the case that the protocol format is a command, the level of the level selection port is adjusted to a high level;
in the case where the protocol format is data, the level of the level selection port is adjusted to a low level.
According to a second aspect of the present application, an embodiment of the present application provides a security chip, the security chip being connected to a control and a display screen, the security chip performing the display method of any one of the first aspects, the security chip comprising:
the communication module is used for receiving a control instruction sent by the control software;
the processor is connected with the communication module;
the state detection port, the level control port, the data transmission port and the level selection port are respectively connected with the processor and the display screen;
the processor is used for extracting target information corresponding to the control instruction; acquiring the busy and idle state of the display screen through a state detection port; when the display screen is in an idle state, the level of the level control port is set to be a first level, and the level of the level selection port of the security chip is adjusted according to the protocol format of the target information, so that the target information is transmitted to the display screen through the data transmission port.
Optionally, at least one of the status detection port, the level control port, the data transmission port, and the level selection port is a time division multiplexed port.
According to a third aspect of the present application, there is provided a visual card according to an embodiment of the present application, the visual card comprising:
a display screen;
the security chip of any one of the first aspects, the security chip being connected to a display screen;
the input end of the power management module is connected with an external power supply, and the output end of the power management module is respectively connected with the display screen and the safety chip and is used for supplying power to the display screen and the safety chip.
Optionally, the power management module includes:
and the input end of the rectifying circuit is connected with an external power supply, and the output end of the rectifying circuit is respectively connected with the display screen and the safety chip and is used for controlling the power supply to the display screen and the safety chip.
Optionally, the power management module further comprises:
the input end of the charging module is connected with the output end of the rectifying circuit, and the output end of the charging module is connected with the capacitor and used for charging the capacitor;
the switch control module is connected with the rectifying circuit at one end, and is connected with the display screen and the safety chip at the other end respectively, and is used for acquiring voltage information of the rectifying circuit and controlling the connection or disconnection of a connecting channel between the capacitor and the display screen and between the capacitor and the safety chip according to the voltage information;
the output end of the capacitor is respectively connected with the display screen and the safety chip and is used for providing electric energy for the display screen and the safety chip when the connecting passage is conducted.
According to a fourth aspect of the present application, an embodiment of the present application provides a computer storage medium having stored thereon computer program instructions which, when executed by a processor, implement the display method of any one of the third aspects.
According to a fifth aspect of the application, an embodiment of the application provides a computer program product, instructions in the computer program product, when executed by a processor of an electronic device, cause the electronic device to perform the display method of any one of the third aspects.
The display method, the security chip, the visual card and the computer storage medium of the embodiment of the application are characterized in that after a control instruction is received through the communication module, corresponding target information is extracted according to the control instruction, then the busy and idle state of the display screen is detected through the state detection port of the security chip, after the busy and idle state of the display screen is in the idle state, the level control port is set to be a first level, the display screen is awakened, the level of the level selection port is adjusted according to the protocol format of the target information, and then the level of the level selection port is controlled according to the communication protocol format of the target information, so that the target information can be transmitted to the display screen through the signal transmission port, the control of the display screen can be directly completed through the security chip, the functions and the roles of the security chip are increased, the micro control unit is not required to be additionally arranged to control the display screen, the structure of the visual card can be simplified through the security chip, and the applicability of the visual card is improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings that are needed to be used in the embodiments of the present application will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.
FIG. 1 is a flow chart illustrating a display method according to an exemplary embodiment;
FIG. 2 is a flow chart illustrating a display method according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating a display method according to an exemplary embodiment;
FIG. 4 is a schematic diagram illustrating the structural connection of a security chip according to an exemplary embodiment;
FIG. 5 is a schematic diagram of a visual card according to an exemplary embodiment;
FIG. 6 is another schematic structural view of a video card shown according to an exemplary embodiment;
fig. 7 is a schematic diagram showing a hardware structure of a display device according to an exemplary embodiment.
Description of the reference numerals
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Visual card | 117 | Communication module |
| 110 | Security chip | 118 | Processor and method for controlling the same |
| 111 | State detection port | 120 | Display screen |
| 112 | Level control port | 130 | Power management module |
| 113 | Data transmission port | 131 | Rectifying circuit |
| 114 | Reset signal port | 132 | Switch control module |
| 115 | Clock signal port | 133 | Charging module |
| 116 | Level selection port | 134 | Capacitance device |
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the particular embodiments described herein are meant to be illustrative of the application only and not limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
If the background technology is used, the display card in the prior art needs a plurality of electronic components such as a security chip, a microcontroller, a display screen and the like to be mutually matched to finish display, and the plurality of electronic components occupy the internal space of the visual card, which is unfavorable for the miniaturized development of the visual card, and also can cause the increase of the use cost of users, which is unfavorable for the popularization and application of the visual card.
In order to solve the problems in the prior art, the control of the display screen can be directly completed through the safety chip, the functions and the functions of the safety chip are increased, a micro control unit is not required to be additionally arranged to control the display screen, the process of controlling the display screen by the safety chip is simplified, and the applicability of the visual card is improved.
Based on the above, the application extracts the corresponding target information according to the control instruction after receiving the control instruction by the communication module, then detects the busy and idle state of the display screen by the state detection port of the security chip, sets the level control port as the first level after the busy and idle state of the display screen is the idle state, wakes the display screen, adjusts the level of the level selection port according to the protocol format of the target information, and controls the level of the level selection port according to the communication protocol format of the target information, thereby the target information can be transmitted to the display screen through the signal transmission port, so that the display screen can display the target information.
Based on the above, the application provides a display method, a security chip, a video card and a computer storage medium. The method is applied to the security chip, and the security chip comprises a communication module and a state detection port.
Fig. 1 is a flowchart of a display method according to an embodiment of the present application. As shown in fig. 1, the display method may include:
s101, receiving a control instruction sent by control software through a communication module;
s102, extracting target information corresponding to a control instruction according to the control instruction;
s103, acquiring the busy and idle states of the display screen through a state detection port;
s104, setting the level of a level control port of the security chip to be a first level when the display screen is in an idle state;
s105, according to the protocol format of the target information, the level of the level selection port of the security chip is adjusted so that the target information is transmitted to the display screen through the data transmission port.
Based on the embodiment, after the control instruction is received by the communication module, the corresponding target information is extracted according to the control instruction, the busy and idle state of the display screen is detected by the state detection port of the safety chip, after the busy and idle state of the display screen is the idle state, the level control port is set to be the first level, the display screen is awakened, the level of the level selection port is regulated according to the protocol format of the target information, and the level of the level selection port is controlled according to the communication protocol format of the target information, so that the target information can be transmitted to the display screen through the signal transmission port, the display screen can display the target information, and therefore, the control of the display screen can be directly completed through the safety chip, the functions and effects of the safety chip are increased, the display screen is not required to be controlled by an extra micro control unit, the structure of the video card can be simplified by using the safety chip, and the applicability of the video card is improved.
In S101, the security chip includes a communication module, where the communication module is configured to receive a control instruction sent by the control element, and specifically, the communication module may be an ISO7816 interface or an ISO14443 interface, and may use the ISO7816 interface to perform communication, or may use the ISO14443 interface to perform communication.
In particular, it may be used to execute such as initialization, data transfer, security and operating system management commands; the control part can be a card reader or an operation key, and the card reader transmits a control instruction to a processor in the security chip through the communication module by utilizing a wireless communication technology; the operation keys can transmit control instructions to the communication module through physical means such as different pressing frequencies, pressing positions and the like.
In S102, after the control instruction is acquired, the control instruction is processed by a processor in the security chip to obtain target information; the security chip stores therein target information for display on the display screen in advance, and specifically, the target information may include: transaction amount information, status information of success or failure of transaction, balance information in the card and the like.
In S103, the security chip may further include an SPI interface (Serial Peripheral Interface serial peripheral interface), and the security chip is connected to the display screen through the SPI interface, where the SPI interface may include a status detection port, and the target information is transmitted to the display screen through the SPI port, so that the display screen may display according to the target information.
Specifically, the detection port firstly acquires the busy and idle state of the display screen, and can transmit the display information to the display screen only when the busy and idle state of the display screen is in an idle state, that is, other target information is not displayed, but before the target information is transmitted, the level of the level control port is required to be controlled to be a first level, the first level can be a low level, so that the display screen can be awakened, the display screen is in a communication state, the display screen can receive the target information transmitted from the data transmission port, and the display screen cannot receive the target information when the level control port is in a high level.
In S104, the detection port acquires the busy and idle state of the display screen, and only when the busy and idle state of the display screen is in an idle state, that is, no other target information is displayed, the display information can be transmitted to the display screen, but before the target information is transmitted, the level of the level control port needs to be set to a first level, the first level can be a low level, so that the display screen can be awakened, and the display screen is in a communication state, so that the display screen can receive the target information sent from the data transmission port, and when the level control port is in a high level, the display screen cannot receive the target information.
In S105, the level selection port is connected to the display screen; the processor is also used for selecting the level of the port by adjusting the level according to the protocol format of the target information so as to enable the target information to be transmitted to the display screen through the data transmission port.
As an example, according to the communication protocol format of the target information, judging whether the target information is a command or data; when the target information is a command, the level of the level selection port is adjusted to a high level; when the target information is data, the level of the level selection port is adjusted to a low level; more specifically, the SPI interface may also include a level control port.
By setting the level selection port, commands and data can be transmitted on one data transmission port, so that the flexibility of data transmission of the security chip is realized; meanwhile, the same data transmission port is used for transmitting the command and the data, so that the number of pins connected with the safety chip of the display screen can be reduced, and the cost and the space are saved; and the control mode of the level selection port is relatively simple, so that the design and implementation difficulty of a connecting circuit between the security chip and the display screen can be reduced.
In order to achieve the display effect of the display screen, the application also provides another implementation mode of the display method.
The security chip further comprises a reset signal port.
Fig. 2 is another flow chart of a display method according to an embodiment of the present application, as shown in fig. 2, before S103, the method may further include the following steps:
s201, sending a clearing signal to the display screen through the reset signal port so as to reset the display information of the display screen.
Based on the above embodiment, the clear signal is sent to the display screen through the signal reset port to reset the display information on the display screen, so that the display screen can accurately receive and display the target information transmitted from the data transmission port.
In S201, before the display state of the display screen is obtained, a clearing signal is sent to the display screen through the reset port, and after the display screen receives the clearing signal, the display information in the display screen is reset, so that the display screen is in an initialized state.
As an example, the display information includes: display commands, display content, display formats, and the like; the SPI interface may also include a reset port.
For the stability of the transmission of the target information, the application also provides another implementation mode of the display method.
The security chip further comprises a clock signal port.
Fig. 3 is another flow chart of a display method according to an embodiment of the present application, and as shown in fig. 3, the method may further include the following steps:
s301, sending a clock signal to the display screen through the clock signal port, and maintaining stability of the transmission port for transmitting the target information.
Based on the above embodiment, the speed and time of the data transmission port to transmit the target information are controlled by controlling the level change of the clock signal port, so that the synchronization, the rapidness and the stability of the transmission of the target information are ensured.
In S301, the clock signal port is connected to the display screen, and the processor is further configured to send a clock signal to the display screen through the clock signal port, so as to maintain stability of the transmission of the target information by the transmission port.
As an example, the frequency of the clock signal port can be set by software, and can be adjusted according to actual requirements so as to achieve the optimal data transmission effect; the SPI interface may also include a clock signal port.
It should be noted that, the application scenario described in the foregoing embodiment of the present application is to more clearly describe the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided by the embodiment of the present application, and as a person of ordinary skill in the art can know that, with the appearance of a new application scenario, the technical solution provided by the embodiment of the present application is also applicable to similar technical problems.
Based on the same inventive concept, the application also provides a security chip. This is described in detail with reference to fig. 4.
The security chip is connected to the control and display screen and may perform any of the display methods of the above embodiments.
In one embodiment, the security chip 110 may include:
the communication module 117 is used for receiving a control instruction sent by the control software;
a processor 118 connected to the communication module 117;
and a state detection port 111, a level control port 112, a data transmission port 113, and a level selection port 116 connected to the processor 118 and the display screen 120, respectively;
the processor 118 is configured to extract target information corresponding to the control instruction; acquiring the busy and idle state of the display screen 120 through the state detection port 111; when it is determined that the display screen 120 is in the idle state, the level of the level control port 112 is set to a first level, and the level of the level selection port 116 of the security chip 110 is adjusted according to the protocol format of the target information, so that the target information is transmitted to the display screen through the data transmission port.
In an embodiment, the security chip 110 may further include: a reset signal port 114, the reset signal port 114 being connected to the display 120;
in an embodiment, the security chip 110 may further include: the clock signal port 115 is connected to the display screen 120, and the processor 118 is further configured to send a clock signal to the display screen 120 through the clock signal port 115, so as to maintain stability of the transmission of the target information by the transmission port.
In an embodiment, at least one of the state detection port 111, the level control port 112, the data transmission port 113, the level selection port 116, and the reset signal port 114 may be a time division multiplexing port.
In particular, a time division multiplexing port is a technique for simultaneously transmitting a plurality of signals through a shared transmission medium in a communication system. The time division multiplexing port may divide time into several intervals, each for transmitting one signal, thereby enabling multiplexing of multiple signals. In the time division multiplexing port, the time interval occupied by each signal is fixed, so that the receiving end can separate and recover each signal according to the time interval.
As an example, the signal transmission of the status detection port 111 and the signal transmission of the data transmission port 113 may employ the same port; specifically, the security chip 110 may determine the busy/idle state of the display screen through the state detection port 111 when the security chip does not have the data transmission port 113, and perform data transmission through the state detection port 111 when the security chip determines that the display screen is in the idle state, so as to implement multiplexing of the state detection port 111, and after the state detection port 111 completes data transmission, the state detection port 111 may be converted into the busy/idle state for detecting the display screen.
In other embodiments, other ports may be configured with a time division multiplexing port, and the specific function and number of the time division multiplexing ports are not limited in the present application.
Based on the same inventive concept, the present application also provides a visual card 100. Fig. 5 shows a schematic structural diagram of a video card 100, which is described in detail in conjunction with fig. 5.
In an embodiment, the video card 100 may further include a display screen 120, a power management module 130, and a security chip 110 as in the above embodiment, where the security chip 110 is connected to the display screen 120, an input end of the power management module 130 is connected to an external power source, and an output end of the power management module 130 is connected to the display screen 120 and the security chip 110, respectively, for supplying power to the display screen 120 and the security chip 110.
As an example, the power management module 130 may draw power by contacting or not contacting the antenna, specifically, by drawing power by conducting electricity through the socket and the wire; the non-antenna mode is to transmit electric energy by communication between the card reader and the visual card 100 after establishing communication with the card reader, so as to perform wireless power transmission.
In this embodiment, the external power supply is an external power supply for supplying power and communicating by a contactless manner, such as an antenna or a coil; in other embodiments, the external power source may further include a battery, an ac power source, or the like, which is used for power supply and communication in a contact manner.
Based on the above embodiment, by setting the power management module 130 to control the power supply to the security chip 110 and the display screen 120, it is ensured that the security chip 110 and the display screen 120 can operate normally, so that the video card 100 can be used normally.
In one embodiment, the power management module 130 includes: the input end of the rectifying circuit 131 is connected with an external power supply, and the output end of the rectifying circuit 131 is respectively connected with the display screen 120 and the security chip 110 and used for controlling power supply to the display screen 120 and the security chip 110.
Based on the above embodiment, since the external power source may be an ac power, and for the electronic product such as the video card 100, the operation of many semiconductor electronic components is required, and often a dc power is required to normally operate, the ac power is rectified by the rectifying circuit 131 to obtain a dc power, and then the rectified current is provided to the security chip 110 and the display screen 120, so as to maintain the normal operation of the security chip 110 and the display screen 120.
In other embodiments, as shown in fig. 6, if the external power source is an external power source that is powered and communicated in a contact manner, the rectification circuit is not required to perform rectification operation.
In an embodiment, the power management module 130 may further include: a charging module 133, a switch control module 132, and a capacitor 134; the input end of the charging module 133 is connected with the output end of the rectifying circuit 131, and the output end of the charging module 133 is connected with the capacitor 134 and is used for charging the capacitor 134; one end of the switch control module 132 is connected with the rectifying circuit 131, and the other end of the switch control module 132 is connected with the display screen 120 and the safety chip 110 respectively, and is used for acquiring voltage information of the rectifying circuit 131 and controlling the connection or disconnection of a connecting channel between the capacitor 134 and the display screen 120 and between the capacitor and the safety chip 110 according to the voltage information; the output end of the capacitor 134 is connected with the display screen 120 and the security chip 110 respectively, and is used for providing electric energy for the display screen 120 and the security chip 110 when the connection path is conducted.
As an example, currently, since the video card 100 is a passive card, there is no built-in battery. This causes the visual card 100 to retain other display information, etc., after the smart card leaves the magnetic field of the reader due to the display principle of the display 120. And the privacy of the clients is influenced.
Thus, the rectified current is supplied to the capacitor 134 by the rectifying circuit 131, and the capacitor 134 is charged, but the switch control module 132 controls the output terminal of the capacitor 134 according to the voltage information of the rectifying circuit 131, and when the voltage information of the rectifying circuit 131 is not 0, that is, when the voltage information of the rectifying circuit 131 is connected to an external power source, the switch control module 132 disconnects the connection path, so that the capacitor 134 is charged, and at this time, the rectifying circuit 131 supplies power to the safety chip 110 and the display screen 120.
When the voltage information of the rectifying circuit 131 is 0, that is, when the rectifying circuit 131 is separated from an external power supply, the switch control module 132 turns on the connection path, and since the rectifying circuit 131 does not have current to transmit power to the capacitor 134, the capacitor 134 is in a discharging state at this time, the current in the capacitor 134 supplies power to the display screen 120 and the security chip 110, and the target information in the security chip 110 can be set to 0 or information without practical meaning such as a preset display image and the like, and then the target information is transmitted to the display screen 120, so that the display screen 120 displays the target information; the display screen 120 can be reset by using the reset signal port 114 of the security chip 110, so as to cover or clear the original display information and protect the property security and privacy of the customer.
In addition, a large amount of power is consumed due to the reset of the display screen 120. The video card 100 may be set after power down, with only one reset. When the visual card 100 reenters the reader's electromagnetic field, the capacitor 134 is again charged.
Fig. 7 shows a schematic hardware structure of a display device according to an embodiment of the present application.
The display device may include a processor 701 and a memory 702 storing computer program instructions.
In particular, the processor 701 may comprise a Central Processing Unit (CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured as one or more integrated circuits implementing embodiments of the present application.
Memory 702 may include mass storage for data or instructions. By way of example, and not limitation, memory 702 may comprise a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, magnetic tape, or universal serial bus (Universal Serial Bus, USB) Drive, or a combination of two or more of the foregoing. The memory 702 may include removable or non-removable (or fixed) media, where appropriate. Memory 702 may be internal or external to the integrated gateway disaster recovery device, where appropriate. In a particular embodiment, the memory 702 is a non-volatile solid state memory.
In particular embodiments, memory 702 may include Read Only Memory (ROM), random Access Memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical, or other physical/tangible memory storage devices. Thus, in general, the memory 702 comprises one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software comprising computer-executable instructions and when the software is executed (e.g., by the one or more processors 701) it is operable to perform the operations described with reference to a method in accordance with an aspect of the application.
The processor 701 implements any of the display methods of the above embodiments by reading and executing computer program instructions stored in the memory 702.
In one example, the display device may also include a communication interface 703 and a bus 704. Wherein, as shown, the processor 701, the memory 702, the communication interface 703 are connected via a bus 704 and communicate with each other.
The communication interface 703 is mainly used for implementing communication between each module, device, unit and/or apparatus in the embodiment of the present application.
Bus 704 includes hardware, software, or both. By way of example, and not limitation, bus 77 may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, a wireless bandwidth interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Control Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus, or a combination of two or more of the above. Bus 704 may include one or more buses 704, where appropriate. Although embodiments of the application have been described and illustrated with respect to a particular bus 704, the application contemplates any suitable bus 704 or interconnect.
The display device may be based on the current display method, thereby implementing the display method and the security chip described in connection with fig. 1-4.
In addition, the embodiment of the present application further provides a computer program product, which includes computer program instructions, and the computer program product can implement the steps of the foregoing method embodiment and corresponding content when executed by the processor 701.
It should be understood that the application is not limited to the particular arrangements and instrumentality described above and shown in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between steps, after appreciating the spirit of the present application.
The functional blocks shown in the above block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
It should also be noted that the exemplary embodiments mentioned in this disclosure describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, or may be performed in a different order from the order in the embodiments, or several steps may be performed simultaneously.
Aspects of the present disclosure are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to being, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware which performs the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present application, and they should be included in the scope of the present application.
Claims (11)
1. A display method, applied to a security chip, the security chip including a communication module and a status detection port, the method comprising:
receiving a control instruction sent by control software through the communication module;
extracting target information corresponding to the control instruction according to the control instruction;
acquiring the busy and idle state of the display screen through the state detection port;
when the display screen is in an idle state, setting the level of a level control port of the security chip to be a first level;
and adjusting the level of the level selection port of the security chip according to the protocol format of the target information so as to enable the target information to be transmitted to the display screen through the data transmission port.
2. The display method of claim 1, wherein the security chip further comprises a reset signal port, the method further comprising, prior to the acquiring the busy state of the display screen through the state detection port of the security chip:
and sending a clearing signal to the display screen through the reset signal port so as to reset the display information of the display screen.
3. The display method of claim 1, wherein the security chip further comprises a clock signal port, the method further comprising:
and sending a clock signal to the display screen through the clock signal port, and maintaining the stability of the transmission port for transmitting the target information.
4. A display method according to any one of claims 1 to 3, wherein said adjusting the level of said level selection port according to the protocol format of said target information to cause said target information to be transmitted to said display screen via said data transmission port comprises:
adjusting the level of the level selection port to a high level in the case that the protocol format is a command;
and in the case that the protocol format is data, the level of the level selection port is adjusted to be a low level.
5. A security chip, characterized in that it is connected to a control and a display screen, said security chip performing the display method according to any one of claims 1-4;
the security chip includes:
the communication module is used for receiving a control instruction sent by the control software;
the processor is connected with the communication module;
the state detection port, the level control port, the data transmission port and the level selection port are respectively connected with the processor and the display screen;
the processor is used for extracting target information corresponding to the control instruction; acquiring the busy and idle state of the display screen through the state detection port; and when the display screen is in an idle state, setting the level of the level control port to be a first level, and adjusting the level of the level selection port of the security chip according to the protocol format of the target information so as to enable the target information to be transmitted to the display screen through the data transmission port.
6. The security chip of claim 5, wherein at least one of said status detection port, said level control port, said data transmission port, and said level selection port is a time division multiplexed port.
7. A visual card, said visual card comprising:
a display screen;
the security chip of claim 5, said security chip being coupled to said display screen;
the input end of the power management module is connected with an external power supply, and the output end of the power management module is respectively connected with the display screen and the safety chip and is used for supplying power to the display screen and the safety chip.
8. The video card of claim 7, wherein the power management module comprises:
the input end of the rectifying circuit is connected with the external power supply, and the output end of the rectifying circuit is respectively connected with the display screen and the safety chip and used for controlling power supply to the display screen and the safety chip.
9. The video card of claim 8, wherein the power management module further comprises:
the input end of the charging module is connected with the output end of the rectifying circuit, and the output end of the charging module is connected with the capacitor and used for charging the capacitor;
the switch control module is connected with the rectifying circuit at one end, and is connected with the display screen and the safety chip at the other end respectively, and is used for acquiring voltage information of the rectifying circuit and controlling the connection or disconnection of the capacitor and the connecting passage between the display screen and the safety chip according to the voltage information;
the output end of the capacitor is respectively connected with the display screen and the safety chip and is used for providing electric energy for the display screen and the safety chip when the connecting passage is conducted.
10. A computer readable storage medium, having stored thereon computer program instructions, which when executed by a processor, implement the display method according to any of claims 1-4.
11. A computer program product, characterized in that instructions in the computer program product, when executed by a processor of an electronic device, cause the electronic device to perform the display method according to any of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311104386.6A CN117149118A (en) | 2023-08-30 | 2023-08-30 | Display method, security chip, video card and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311104386.6A CN117149118A (en) | 2023-08-30 | 2023-08-30 | Display method, security chip, video card and computer storage medium |
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| Publication Number | Publication Date |
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| CN117149118A true CN117149118A (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311104386.6A Pending CN117149118A (en) | 2023-08-30 | 2023-08-30 | Display method, security chip, video card and computer storage medium |
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| Country | Link |
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| CN (1) | CN117149118A (en) |
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- 2023-08-30 CN CN202311104386.6A patent/CN117149118A/en active Pending
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