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33results about How to "Write implementation" patented technology

Indexing method and device based on key value pair KV system, electronic equipment and medium

The invention discloses an indexing method and device based on a key value pair KV system, electronic equipment and a medium, and relates to the technical field of indexing. According to the specificimplementation scheme, the method comprises the steps: acquiring key values in key value pairs to be inquired, wherein the key values of the key value pairs in the KV system are progressively increased integer numbers; taking the key value as a serial number of a fixed-length type index, and determining address information of a storage position where a numerical value in the to-be-queried key value pair is located according to the serial number; and reading a numerical value in the to-be-queried key value pair from a storage space according to the address information. According to the method,the obtained key values are used as the serial number of the fixed-length type index, so that the resource occupation amount of a system memory is reduced; by determining the address information of the storage position where the numerical value is located according to the serial number, the numerical value reading is completed, the numerical value reading speed is increased, and the numerical value reading efficiency is improved.
Owner:BEIJING BAIDU NETCOM SCI & TECH CO LTD

Dynamic memory, manufacturing method and read-write method thereof, electronic equipment and memory circuit

The invention provides a dynamic memory, a manufacturing method, a read-write method, an electronic device and a memory circuit, a transistor is arranged in each memory cell in the dynamic memory, a main grid electrode and a back grid electrode are arranged in the transistor, and the back grid electrode is electrically connected with a drain electrode. A first specific voltage is applied to the main grid electrode through the word line during writing operation, and then an electric signal is applied to the source electrode through the bit line according to external input data; when reading operation is carried out, a second specific voltage is applied to the back gate through the word line by utilizing the influence of the voltage on the back gate on the threshold voltage of the transistor (the size of the second specific voltage is between the threshold voltage when the transistor stores' 1 'and the threshold voltage when the transistor stores' 0 '); and then the data reading is realized by detecting the magnitude of the output current of the field effect transistor. Therefore, reading and writing of data can be realized only by arranging one transistor, the structure of the storage unit is simplified, and the integration level and the storage density of the dynamic memory can be improved.
Owner:BEIJING SUPERSTRING ACAD OF MEMORY TECH

Pixel circuit and driving method thereof, panel and manufacturing method thereof, drawing board and display device

The invention provides a pixel circuit and a driving method thereof, a panel and a manufacturing method thereof, a drawing board and a display device. The pixel circuit comprises a control switch module, a driving module, a signal writing module, a storage capacitor and a light emitting device. The control switch module is connected with the signal writing module in parallel and is connected withthe driving module, the storage capacitor and the data signal end; the control switch module comprises a metal layer and a flexible conductive layer which are insulated from each other. The metal layer is used for receiving data voltage of the data signal end, and the flexible conductive layer is used for generating deformation under the action of external force so as to conduct the metal layer and the storage capacitor upper pole plate, so that the data voltage of the data signal end is input into the driving module. When in use, the flexible conductive layer is used for generating deformation under the action of external force so as to conduct the metal layer and the upper polar plate of the storage capacitor, so that the data voltage of the data signal end is input into the driving module. When the paintbrush presses the screen, writing of electric signals can be achieved, and therefore the function of the electronic canvas is achieved.
Owner:BOE TECH GRP CO LTD

Optical storage method and system for introducing fluorescence signal into anisotropic structure

The invention discloses an optical storage method and system for introducing a fluorescence signal into an anisotropic structure and belongs to the field of optical storage. The method comprises the following steps: taking data to be stored as target data, determining a delay value L, an optical axis direction D and fluorescence signal intensity I corresponding to the target data, and determininga position P of an anisotropic structure in a processing material according to a storage address of the target data; respectively setting the intensity and polarization state of the first laser according to the delay value L and the optical axis direction D, and writing an anisotropic structure at the position P in the processing material by utilizing the first laser; determining the writing process of the anisotropic structure; exciting material defects introduced by the first laser to generate fluorescence signal intensity Iini; after the intensity and action time of the second laser are setaccording to the difference value between the fluorescence signal intensity I and the fluorescence signal intensity Iini, enabling the second laser to act on the position P in the machined material,so that the intensity of the fluorescence signal is regulated and controlled to be I by utilizing the heat effect of the second laser. The optical storage capacity can be improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Implementation system and method for allocating addresses to slave devices through RS-485 bus

The invention discloses an implementation system and method for allocating addresses to slave devices through RS-485 buses, and belongs to the technical field of RS-485 bus control, a plurality of slave devices form an array with M rows and N columns, buses A in the RS-485 buses of N slave devices in each row are mutually connected, buses B in the RS-485 buses of the N slave devices in each row are mutually connected, and buses B in the RS-485 buses of the N slave devices in each row are mutually connected. The slave machines in each row are connected with the bus A of the RS-485 bus of the host through a pair of open points of one relay, the bus B of the RS-485 buses of the M slave machines in each column are connected with one another, and the slave machines in each column are connected with the bus B of the RS-485 bus of the host through a pair of open points of one relay. In the invention, the address can be written into the slave only by closing the relays of the row and the column where the slave needing to write the address is located, so that the sequential address writing of each slave is realized, the address writing of the multiple slave devices can be conveniently realized, the operation is simple, the efficiency is high, the working intensity can be reduced, the cost is relatively low, and the practicability is high. The method is suitable for all systems with RS-485 buses.
Owner:XUNDI SCI & TECH HUBEI PROV

An optical storage method and system for introducing fluorescent signals into an anisotropic structure

The invention discloses an optical storage method and system for introducing fluorescent signals into an anisotropic structure, belonging to the field of optical storage, including: taking the data to be stored as target data, determining the corresponding delay value L and the direction of the optical axis D and fluorescence signal intensity I, and determine the position P of the anisotropic structure in the processing material according to the storage address of the target data; after setting the intensity and polarization state of the first laser according to the retardation value L and the optical axis direction D, use the first The laser writes the anisotropic structure at the position P in the processed material; during the process of writing the anisotropic structure, the fluorescence signal intensity I generated by the excitation of the material defect introduced by the first laser is determined ini , and according to the fluorescence signal intensities I and I ini After setting the intensity and action time of the second laser, the second laser is applied to the position P in the processing material to adjust the intensity of the fluorescent signal to I by utilizing the thermal effect of the second laser. The invention can increase the capacity of optical storage.
Owner:HUAZHONG UNIV OF SCI & TECH

Data writing method and device for solid-state hard disk, and computer-readable storage medium

The present application relates to the technical field of solid-state hard disk control, in particular to a method and device for writing data into a solid-state hard disk, and a computer-readable storage medium, which are used to improve the utilization rate of flash, reduce write amplification and increase service life. The above-mentioned data writing method includes: creating a TLB node resource pool and a head node resource pool in the DDR cache; the TLB node resource pool includes a plurality of TLB node resources, and the head node resource pool includes at least one head node resource, and the number of head node resources is equal to The number of TLBPAGEs; after obtaining the data to be written in any TLB PAGE, apply for TLB node resources for the data to be written from the TLB node resource pool, and write the data to be written into the corresponding TLB node resources; and, from scratch In the node resource pool, apply for the head node resource for any TLB PAGE, and write the address information of the TLB node resource storing the data to be written into the head node resource; when the solid state disk is powered off, the TLB node resource pool and the head node resource pool Write the storage content of each node resource in the flash.
Owner:NEW H3C TECH CO LTD
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