Huawei Technologies Co., Limited

Emc IP Holding Company LLC

Shanghai Haoye Capacitors Co., Ltd

Emc Corporation

Shanghai Jiaotong University

Shanghai Haoye Electric Co., Ltd

Shangai Haoye Electric Co., Ltd.

Hao Pan

Feng Zhang

Feng Xu

Zengshi Huang

Zikui Zhang

Philippe Armangau

Yi Bin Wang

Ahsan Rashid

Rohit K Chawla

Chen Wang

Ying Hu

Gong Chen

Ruiling Dou

Diane Delgado

Zhongquan Liu

Kent J Costa

Guangtao Xue

Yichao Chen

Kenny Zhou

Qingchuan Sun

Jinming Hao

The present disclosure relates to data transmission methods, systems, and apparatuses. In one example method, a first device sends first information of a first data block to a second device. The second device searches, based on the first information, a first index for a second data block similar to the first data block, and sends second information of the second data block to the first device. The first device locally obtains, based on the second information, a reference block that is the same as the second data block, compresses a difference part of the first data block relative to the reference block to obtain first compressed information, and sends the first compressed information to the second device. The second device obtains the first data block based on the first compressed information and the second data block.

Data transmission method and system, apparatus, device, and medium

A capacity adjustment method applied to a storage system and a related apparatus are provided. The method includes: analyzing cold and hot attributes of data stored in the storage system, to obtain an amount of hot data and an amount of cold data in the data; determining, based on the amount of hot data and the amount of cold data, a capacity of a cache required by the storage system and a capacity of a persistent storage required by the storage system, where the cache required by the storage system comes from a first storage medium set, and the persistent storage required by the storage system comes from a second storage medium set; and adjusting, based on the capacity of the cache and the capacity of the persistent storage, a purpose of a storage medium comprised in the storage system.

Capacity adjustment method and related apparatus

Hydroponic tower

This invention relates to a secure QrCode communication method based on nonlinear spatial frequency characteristics, comprising: camera modeling: modeling according to the spatial frequency of the color filter matrix of the scanning device's camera; QrCode encryption: using the CFA spatial frequency of scanning device and modeling results, as well as the spatial frequency of the display device, generate an encrypted picture of the target QrCode on the display device; QrCode decryption: the camera of the scanning device takes the picture of the display at a specified position and a specified angle, and parses the image to recover the target QrCode. Compared with the prior art, the present invention utilizes the nonlinear characteristics of the optical spatial frequency, and uses the spatial frequency of the camera's own color filter array and the spatial frequency of the display to modulate the target two-dimensional code through phase to achieve the effect of encryption.

Secure QR code using nonlinearity of spatial frequency in light

A method of efficiently checking a filesystem for errors is provided, the filesystem including a set of data blocks and a set of VBPs, the set of VBPs arranged in a set of VBP blocks, each VBP block storing a plurality of the VBPs. The method includes multiple stages, one stage including iterating through VBP blocks of the filesystem to generate a validity bitmap, and a later stage including traversing a block pointer structure associated with each of a set of files of the filesystem, the traversal making reference to the validity bitmap.

Techniques for efficiently performing a filesystem consistency check

A technique for storage allocation provides a first cursor and a second cursor from which to allocate blocks within a physical address space of a file system. The file system uses the first cursor for allocating blocks for writes directed to sequential logical addresses and uses the second cursor for writes directed to random (non-sequential) logical addresses.

Allocating space in a file system from sequential and random cursors

A fast-mounting capacitor is composed of a capacitor () and a plug-in sheet (). A fixed rod () extends from the lower end of the shell of the capacitor (). The fixed rod () has a fixed slot (). The plug-in sheet () includes an insulating strip () provided above. Plastic elastic clamps () and a connection part () are connected to the lower part of the insulating strip (). Fixing clamping strips () are provided on the inner wall of the capacitor mounting hole (). The capacitor can be plugged in conveniently, and can effectively serve as an insulator, therefore it can prevent conducting leakage of electricity to the box of electrical equipment so as to cause accident when abnormal leakage occurs to the capacitor.

Fast-mounting capacitor

Improved techniques of implementing range lock involve granting a sleeping thread access to an address range when no conflicts exist with earlier pending requests as well as with already granted requests. Along these lines, a current child thread that has a conflict with a parent thread that currently holds a range lock on a range of bytes during a read/write operation will be awoken from waiting state when the parent thread has completed its access and releases its lock. In response, the processor compares the range to which the current child thread request access with the ranges to which other sleeping threads request access. However, the comparisons are only performed in connection with (i) requests that arrived prior to the current child thread and (ii) other granted requests.

Granting rangelocks according to thread arrival time

A quickly-mounted capacitor consists of a capacitor () and a plug piece (). The quickly-mounted capacitor is characterized in that a fixation mounting rod () or a screw () is extended from a lower end of a housing of the capacitor (); the plug piece () comprises an insulating sheet () arranged in an upper portion, and a lower portion of the insulting sheet () is connected to an upper end of a connection part (); a lower end of the connecting part () is connected to a plastic elastic card () to form a plastic anchor-shaped elastic card. An upper portion of the plug piece () is provided with a capacitor mounting hole (). The capacitor not only is convenient to plug, but also can effectively play a role in insulation and prevent the accident caused by conducting leak electricity to an electric appliance casing when abnormal electricity leakage occurs in the capacitor.

Quickly-mounted capacitor

Growing community of inventors

Shanghai, China

Hao Pan