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39results about How to "Erasure implementation" patented technology

Liquid crystal handwriting pad, handwriting device, and method for controlling handwriting device

The invention discloses a liquid crystal handwriting board, a handwriting device and a method for controlling the handwriting device, and belongs to the technical field of display. The liquid crystalhandwriting board comprises a liquid crystal panel and a driving assembly. The liquid crystal panel comprises a first substrate, a second substrate, a liquid crystal layer, and a liquid crystal layerlocated between the first substrate and the second substrate, wherein the first substrate and the second substrate are oppositely arranged, . The pixel electrodes in the first substrate in the liquidcrystal panel are the plurality of blocky electrodes, so that when the liquid crystal handwriting board is in the erasing mode, the driving assembly electrically connected with the liquid crystal panel can apply pixel voltage to the blocky pixel electrodes in the to-be-erased area based on the position information of the to-be-erased area; so that a voltage difference is formed between the pixel electrode in the to-be-erased area and the common electrode, liquid crystal molecules in the to-be-erased area in the liquid crystal layer are rearranged under the action of the voltage difference, thelocal area of the liquid crystal handwriting board can be erased, and the use flexibility of the liquid crystal handwriting board is improved.
Owner:BOE TECH GRP CO LTD +1

Liquid crystal handwriting board, handwriting system and control method of handwriting system

The invention discloses a liquid crystal handwriting board, a handwriting system and a control method of the handwriting system, and belongs to the technical field of display. The liquid crystal handwriting board comprises a liquid crystal panel, a photosensitive assembly and a driving assembly. When the handwriting displayed on the liquid crystal handwriting board needs to be erased, an erasing tool capable of emitting the target light can be adopted to erase the handwriting. After the erasing tool emits the target light to the liquid crystal panel, the photosensitive assembly can determine the position where the target light irradiates the liquid crystal panel through the target light sensed by at least part of the photosensitive elements, and the position where the target light irradiates the liquid crystal panel is the position of a to-be-erased pixel area. Therefore, the liquid crystal handwriting board can apply the pixel voltage to the pixel electrodes in the to-be-erased pixel area through the control assembly, so that the handwriting in the to-be-erased pixel area is erased.
Owner:BOE TECH GRP CO LTD +1

An Optical Method to Modulate the Persistent Photoconductive Effect of ZnO Nanowires

The invention belongs to the technical field of nanometer material applications, and in particular relates to an optical method for modulating the continuous photoconductive effect of a zinc oxide nanometer wire. According to the invention, a photoelectric device of the zinc oxide nanometer wire under the continuous photoconduction state is irradiated by utilizing infrared light, and the electricconductivity of the photoelectric device of the zinc oxide nanometer wire is reduced, thus the quenching of continuous photoconduction is realized. According to the invention, after a nonvolatile optical memory based on the zinc oxide nanometer wire is subjected to excitation by ultra violet irradiation, the nonvolatile optical memory under the continuous photoconduction state is irradiated by the infrared light, and the electric conductivity of the nonvolatile optical memory is reduced, thus the erasure of data is realized. The method provided by the invention has the advantages of repaid response and low cost, is convenient and rapid, and is especially suitable for the applications of the nonvolatile optical memory based on the zinc oxide nanometer wire.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Camera shooting direct-reading water meter with automatic decontamination function and automatic decontamination method

The invention discloses a camera shooting direct-reading water meter with an automatic decontamination function and an automatic decontamination method and belongs to the technical field of water meters. The camera shooting direct-reading water meter comprises a meter shell (8), wherein a reading panel (6) is arranged above the meter shell (8); a reading area (19) is formed in the reading panel (6); meter skin (3) is arranged on the surface of the reading panel (6); the camera shooting direct-reading water meter is characterized in that a power box (9) is arranged on one side of the meter shell (8); a stain wiping mechanism used for wiping the upper and lower surfaces of the meter skin (3) is arranged above the power box (9); an operating state of the stain wiping mechanism is controlled by a control circuit in the power box (9); a camera shooting assembly (2) used for shooting the reading panel (6) is arranged above the stain wiping mechanism. According to the camera shooting direct-reading water meter with the automatic decontamination function and the automatic decontamination method, due to the stain wiping mechanism, the water meter skin is wiped, and reliable reading is realized.
Owner:淄博贝林电子有限公司

Quick test technology of EEPROM (Electrically Erasable Programmable Read-Only Memory)

The invention discloses a quick test technology of an EEPROM (Electrically Erasable Programmable Read-Only Memory). The quick test technology is characterized in comprising a test control module, a high-voltage control module, a data reading module, a data comparison module, a logic control module, a data judgment module and a memory cell in the EEPROM. The data writing and reading of the EEPROM is completely controlled by internal logic to be finished, in addition, a data comparison process and a test judgment process are controlled by the internal logic to be realized, and finally, only a test result signal needs to be sent out. Test efficiency is very high. In a test process, written data does not adopt checkerboard test data (0x55 and 0xAA) but adopts 0x00and 0xFF test data which can be easily erased and written by the EEPROM to finish a test, and therefore, the test efficiency can be greatly improved. The whole test process of the test method hardly depends on external test resources.
Owner:深圳市航顺芯片技术研发有限公司

Traceless education method applied to embedded education terminal

The invention relates to a traceless education method applied to an embedded education terminal. A cycle is formed; when a student logs in teaching software of the education terminal for each time, the education terminal requests for latest education resource information for a server terminal and displays the latest education resource information on the education terminal in time. By virtue of the application of the traceless education method to erasure of application data of the education terminal, one-key reset of the education terminal is started when the education terminal is turned off, system data of the education terminal is rewritten, the erasure of the user data is implemented, the data legacy and the invasion of malicious application are avoided. By virtue of the application of the traceless education method to offer of the latest education information for the students, an information receiving program is installed on the education terminal, an education information issuing server is built at the same time, the students just need to click the receiving programs of the education terminal, the server is capable of automatically pushing the education information issued by teachers to the education terminal, so that the reduction information is updated in real time.
Owner:SHANDONG UNIV

Visual card erasing device

The invention discloses a visual card erasing device which comprises a card issuing module, an erasing mechanism and a card reclaiming module, wherein the card issuing module comprises a card box for containing visual cards to be erased and a card pushing mechanism at the top part of the card box; the card pushing mechanism is used for pushing the visual cards into the erasing mechanism; the erasing mechanism comprises a first motor, a first driving wheel, a first driven wheel, a first conveyer belt and a hot erasing unit; a first transmission mechanism is arranged below the hot erasing unit; a first channel through which the visual cards can pass is formed between the hot erasing unit and the first transmission mechanism; the card reclaiming module comprises a second transmission mechanism and a reclaiming box; the second transmission mechanism comprises a second motor, a second upper turning wheel group, a lower turning wheel group, a second upper conveyer belt and a second lower conveyer belt; a second channel through which the visual cards can pass is formed between the second upper conveyer belt and the second lower conveyer belt; and the reclaiming box is arranged at one side of a card outtake end of the second channel. With the adoption of the visual card erasing device, the erasing operation of the visual cards can be carried out effectively; and the visual card erasing device is independent from a printer.
Owner:GUANGDONG RAILWAY TECH

Light-emitting writing board and operation method thereof

InactiveCN108944183AErasure implementationImplement color transformationBoard cleaning devicesWriting boardsEngineering
The invention discloses a light-emitting writing board and an operation method thereof. The light-emitting writing board comprises a main frame body and a reset device arranged in the main frame body,a reset cavity is formed in the main frame body, and a first rotating cavity located on the lower side of the reset cavity is formed in the main frame body; a rotating lamp cavity located on the right side of the first rotating cavity is formed in the main frame body, a first sliding cavity located on the right side of the rotating lamp cavity and is opened rightwards is formed in the main framebody, a fourth rotating cavity located on the lower side of the first rotating cavity is formed in the main frame body, a third rotating cavity located on the left side of the fourth rotating cavity is formed in the main frame body, and a second rotating cavity located on the right side of the fourth rotating cavity is formed in the main frame body; and a motor is fixedly arranged on the bottom wall of the fourth rotating cavity, the left end of the motor is in power connection with an eleventh rotating shaft, wherein the left end of the eleventh rotating shaft is rationally connected with theleft wall of the fourth rotating cavity, and a fifth gear is fixedly arranged on the eleventh rotating shaft.
Owner:袁兴芳

High brightness liquid crystal writing device

The invention discloses a high brightness liquid crystal writing device. The high brightness liquid crystal writing device comprises at least two display material layers, at least one intermediate support layer and erasure conductive layers, wherein the display material layers comprise cholesterol liquid crystals; the intermediate support layers are arranged between every two display material layers; and the erasure conductive layers are separately arranged on the two sides of each display material layer, when at least a portion of each erasure conductive layer on both sides of the display material layer separately accesses to erasure voltage signals, an electric field is formed between access parts of the two erasure conductive layers, and writing marks of areas of the relatively coated display material layers are erased. Therefore, while retaining the scheme of the double layer display material layers in the prior art (but the high brightness liquid crystal writing device is not limited to the double layers), the two erasure conductive layers separately located on both sides of each display material layer for aiming at the display material layers independent erasure to solve theproblem of excessive voltage, meanwhile, incident light can be double reflected through two or more display material layers, and the effect of enhancing the brightness is realized.
Owner:LINNDENN TECH CO LTD

Time termination high-performance grading data erasing method for synthetic aviation electronic system

The invention discloses a time-limited efficient method for erasing ranked data in an integrated avionics system, and provides a layered architecture to erase the data of the integrated avionics system, wherein the upper layer thereof is the ranked data erasing decision, which decides a sub-algorithm for erasing data in a file by adopting a 'mean correspondence diffusion method' and combining the file properties, such as security level, size, encryption, etc., as well as the system allowable erasing time. The lower layer is the ranked data erasing algorithm, which comprises a main erasing algorithm and an erasing algorithm set composed of erasing sub-algorithms, wherein, the main erasing algorithm is used for balancing the security and the timeliness of the file erasing by designing a 'skipping' method; the erasing sub-algorithms in the erasing algorithm set are generated and configured according to different parameters by the main erasing algorithm, and used for being called by the erasing decision, so as to erase the files at different security levels. The method for erasing the ranked data has the characteristics of limited time, high efficiency, safety and flexibility. Therefore, the method is suitable for the integrated airborne avionics system of the next-generation.
Owner:XIDIAN UNIV

ECU application program updating method, device and system, storage medium and electronic equipment

The invention relates to an ECU application program updating method, device and system, a storage medium and electronic equipment, belongs to the field of vehicles, and can realize stable and reliable updating of an ECU application program. The ECU application program updating method comprises the following steps: acquiring an ECU application program updating data packet from a vehicle-mounted information box; the ECU application program updating data packet is analyzed; a flash memory erasing program is called from the vehicle-mounted information box, a first flash memory area of the ECU is erased, and the first flash memory area is a storage area used for burning the ECU application program updating data packet on the first flash memory area; and burning the ECU application program updating data packet obtained by analysis to the erased first flash memory area.
Owner:BYD CO LTD

Handwriting processing method, display device and readable storage medium

The invention relates to a handwriting processing method, display equipment and a readable storage medium, and relates to the technical field of display. The handwriting processing method comprises the following steps: sequentially generating path points for forming handwriting according to a writing operation; when the number of the newly-added path points reaches a specified number, establishing a sub-bounding box covering the newly-added path points with the specified number; when the writing operation is finished, a main bounding box covering all the path points of the handwriting is established, and the sub-bounding box is located in the main bounding box; generating at least one erasure unit comprising a plurality of erasure areas according to the erasure operation, and establishing an erasure bounding box of the erasure unit; each erasing bounding box is established, a positioning step is executed for each handwriting, and the positioning step comprises the steps that according to a main bounding box intersecting with the erasing bounding box, a sub-bounding box intersecting with the erasing bounding box is selected; according to a sub-bounding box intersected with the erasure bounding box, selecting a path point in the erasure area as a path point to be erased; and erasing the path points to be erased in the handwriting.
Owner:BOE TECH GRP CO LTD

Writing board

InactiveCN109130640ALower display costsMeet the needs of personalized marketingBoard cleaning devicesWriting boardsHydraulic cylinderCircular face
The invention discloses a writing board. The writing board comprises a writing board box and an erasing device arranged in the writing board box. The writing board box is internally provided with a first rotating cavity and a writing board cavity located in the right side of the first rotating cavity and communicating with the first rotating cavity. The writing board cavity is opened rightwards. Athird rotating cavity located in the lower side of the writing board cavity is formed in the writing board box, a hydraulic cylinder cavity located in the right side of the third rotating cavity is formed in the writing board box, and a second rotating cavity located in the lower side of the hydraulic cylinder cavity and communicating with the hydraulic cylinder cavity is formed in the writing board box. Second rotating shafts extending downwards are rotationally arranged on the upper wall and the lower wall of the writing board cavity, a writing board body fixedly connected to the second rotating shafts is arranged in the writing board cavity, and a word frame is arranged on the outer circular face of the writing board body. A first rotating shaft is rotationally arranged on the left wall of the first rotating cavity.
Owner:金华佩特科技有限公司

Image processing method and image processing device

The invention provides an image processing method. The image processing method includes: intercepting to obtain operation triggering erasure of an image to be processed; acquiring a color value of a corresponding position of the operation to server as a target color value; controlling calculation of the target color value in the image to be processed through preset color calculation factors to obtain a mixed color value; updating the target color value in the image to be processed to be the mixed color value. Additionally, the invention further provides an image processing device matched with the image processing method. By the aid of the image processing method and the image processing device, complicated patterns can be erased.
Owner:GUANGDONG XIAOTIANCAI TECH CO LTD

Erasing mechanism of visual card erasing machine

The invention discloses an erasing mechanism of a visual card erasing machine. The erasing mechanism comprises an upper framework and a lower framework, wherein one ends of the upper and the lower frameworks are hinged, and the other ends of the upper and the lower frameworks are in detachable connection; one end of the lower framework is provided with a card inlet, and the lower framework is equipped with a motor, a control circuit board and a plurality of driving rollers; the rotary shaft of the motor is in driving connection with the driving rollers; the other end of the lower framework is provided with a card outlet; a plurality of heating rollers in one-to-one correspondence with the driving rollers are arranged on the upper framework, and the two ends of each heating roller are rotationally connected with the two side walls of the upper framework; when the upper framework and the lower framework are close, the outer side wall of each heating roller tightly presses and is jointed with the outer side of one corresponding driving roller, and each heating roller is externally equipped with a heating body; the two ends of the heating body are fixedly connected with the outer side wall of the upper framework; and the heating body is connected with the control circuit board via a wire. The erasing machine of the visual card erasing machine is small in damage to the card surface, fast in erasing speed and high in erasing efficiency.
Owner:NINGBO RONGDA CARD & CERTIFICATE PRINTER MFG

Traceless education method suitable for embedded education terminal

The invention relates to a traceless education method suitable for an embedded education terminal, a cycle is formed, a student logs in teaching software of the education terminal each time, and the education terminal requests latest education resource information from a server side and displays the latest education resource information on the education terminal in real time. In the aspect of erasing the use data of the education terminal, when the education terminal is shut down, one-key restoration of the education terminal is started, the system data of the education terminal is re-programmed, erasing of the user data is achieved, and data retention and invasion of malicious applications are avoided; in the aspect of providing latest education information for students, an information receiving program is installed in an education terminal, meanwhile, an education information publishing server is built, the students only need to click on the receiving program of the education terminal, the server automatically pushes the education information published by teachers to the education terminal, and therefore real-time updating of the education information is achieved.
Owner:济南远航教育科技有限公司

Writing board and operating method thereof

The invention discloses a writing board and an operating method thereof. The writing board comprises a writing board box and a wiping device arranged in the writing board box. A first rotating cavityis formed in the writing board box. A writing board cavity located on the right side of the first rotating cavity and communicating with the first rotating cavity is formed in the writing board box and is open rightwards. A third rotating cavity located below the writing board cavity is formed in the writing board box. A hydraulic cylinder cavity located on the right side of the third rotating cavity is formed in the writing board box. A second rotating cavity located below the hydraulic cylinder cavity and communicating with the hydraulic cylinder cavity is formed in the writing board box. Asecond rotating shaft which extends downwards is rotatably arranged on the upper wall and the lower wall of the writing board cavity. A writing board body fixedly connected to the second rotating shaft is arranged in the writing board cavity. A writing frame is arranged on the outer circular surface of the writing board body. A first rotating shaft is rotatably arranged on the left wall of the first rotating cavity.
Owner:金华佩特科技有限公司

Erasing method and device suitable for multi-carrier frequency domain modulation signal

An erasing method and device suitable for a multi-carrier frequency domain modulation signal relate to the field of multi-carrier frequency domain modulation in an optical communication system, and comprise the following steps: separating a part of signals from a transmission link of a multi-carrier frequency domain signal to perform data sampling, and performing FFT on a sampled digital signal to obtain an FFT signal; de-mapping and recovering the loaded signal according to the corresponding relationship of the frequency spectrum positions; selecting a frequency point needing clock recovery, evaluating phase drift through the phase difference of the frequency point after two adjacent FFT, and adjusting the frequency of a local reference clock by taking the average value of multiple adjacent phase drift results; and when the adjusted reference clock is synchronous with the sending end clock, generating a subcarrier signal with the same strength and opposite phases at a frequency point where subcarriers need to be erased, carrying out IFFT, and superposing an obtained result with a multi-carrier frequency domain signal of a transmission link. According to the invention, the modification of the optical label data from 1 to 0 is realized, so that the multi-carrier frequency domain modulation signal can be flexibly modified as required.
Owner:WUHAN POST & TELECOMM RES INST CO LTD

A method and device for generating multi-level vector graphics

The invention provides a method for generating a multi-level vector diagram. The method comprises the steps of: determining a boundary contour of a color filling area of an image; storing the boundary contour and an image attribute of the color filling area, wherein the image attribute is used for determining pixels in the boundary contour. By adopting the method, the pixels within the contour range can be reduced via the contour of the color filling area, so that the effect of modifying the pixels is achieved and the image can be modified more accurately; and because the pixels can be directly operated, processing of complex topological structures can be supported.
Owner:INST OF COMPUTING TECH CHINESE ACAD OF SCI

Airbag self-adaptive automatic erasing device and method for cryogenic filling system

The invention discloses an air-bag self-adapting automatic-erasing device and method for a low temperature filling system. The device comprises a mounting seat (8), the two sides of the mounting seat are provided with a rotating shaft (4) and a power device respectively, and the rotating shaft is fixedly provided with a bracket (3); an air bag (2) is laid on the rotating shaft and bracket, and the rotating shaft is provided with an air inlet (41) and first and second air outlets (42, 43); the air inlet is communicated with the first and second air outlets, and the first and second air outlets are communicated with the air bag and the outside respectively. The method includes the following steps that the rotating shaft extends into the inner cavity of the low temperature filling system, and the air is inlet from the air inlet to make the air bay expand; the rotating shaft is driven, plastic wires are used to wipe frost and ice down, and the air is compressed to blow the frost and ice down; the pressure of supplying air is adjusted until erasing is completed. The purpose is to provide the air-bag self-adapting automatic-erasing device and method for the low temperature filling system, and the device and the method have the advantages of being high in erasing efficiency, good in effect, strong in universality, high in automation degree, safe in use and the like.
Owner:BEIJING INST OF SPACE LAUNCH TECH +1

Time termination high-performance grading data erasing method for synthetic aviation electronic system

The invention discloses a time-limited efficient method for erasing ranked data in an integrated avionics system, and provides a layered architecture to erase the data of the integrated avionics system, wherein the upper layer thereof is the ranked data erasing decision, which decides a sub-algorithm for erasing data in a file by adopting a 'mean correspondence diffusion method' and combining thefile properties, such as security level, size, encryption, etc., as well as the system allowable erasing time. The lower layer is the ranked data erasing algorithm, which comprises a main erasing algorithm and an erasing algorithm set composed of erasing sub-algorithms, wherein, the main erasing algorithm is used for balancing the security and the timeliness of the file erasing by designing a 'skipping' method; the erasing sub-algorithms in the erasing algorithm set are generated and configured according to different parameters by the main erasing algorithm, and used for being called by the erasing decision, so as to erase the files at different security levels. The method for erasing the ranked data has the characteristics of limited time, high efficiency, safety and flexibility. Therefore, the method is suitable for the integrated airborne avionics system of the next-generation.
Owner:XIDIAN UNIV
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