University of California

Lemon Inc.

Beijing Volcano Engine Technology Co., Ltd.

Disney Enterprises, Inc.

National Institutes of Health (nih)

Hao Wang

Hsian-Rong Tseng

Sheng Qiu

Shutao Wang

Yi Wang

Ming Zhao

Omeed Momeni

Yang Liu

Jingwei Zhang

Jiaxin Ou

Zhengyu Yang

Kan Liu

Yizheng Jiao

Haiyang Shi

Jianyang Hu

David Crawford

Jonathan Michael Ackley

Fei Liu

Peng Xu

Hui Zhang

Caius G Radu

Kyoungryun Bae

Johannes Czernin

Bei Yang

Wei Tang

Ming Lin

Ravi Shankar Prasher

Xiao Liu

Isaac D Talamantes

Tyler Emptage

Kuan-Ju Chen

Kuankuan Guo

Helen Su

Justin Palmer Freedman

Qizhong Mao

A computing device for verifying data integrity is provided, comprising a memory controller configured to receive a plurality of original data blocks. Each original data block has an associated initial CRC value. The memory controller then segments and recombines the received data blocks into logic blocks, and calculates a new logic block CRC value for each logic block. The logic blocks are transmitted with their respective new logic block CRC values to a storage device, and the logic blocks are written to non-volatile memory of the storage device in a write operation. After the write operation, a combined CRC value is calculated for the logic blocks and a combined CRC value for the original data blocks, and compare the combined CRC values. The memory controller determines whether the combined CRC values match. When they match, the memory controller generates a verification response verifying the integrity of the write operation.

Device and methods for managing the data integrity of read and write operations

Decoupled computing systems include layers of same-type computing resources, and include a dispatch layer to assign tasks from one layer to another, such as input and output (I/O) flows. The I/O flows can be assigned to particular computing resources of a layer based on a weighted moving average of performance data for the layer. When traffic is high, the assignment can include random assignment to some or all of the computing resources in the layer. The I/O flows can be split between read-intensive and write-intensive flows, with more read-intensive flows being assigned based on a pick ratio.

Systems and methods for input/output dispatch

Methods and systems of a log engine for logging data operation in a file system is disclosed. The log engine includes a user interface module configured to receive a plurality of data operation logs that respectively record a data operation and a sequence ID corresponding to an order of the data operation being performed; and a shared log manager configured to provide an in queue configured to consolidate the plurality of data operation logs, and swap the plurality of data operation logs to an out queue with the plurality of data operation logs being ordered based on the sequence ID and saved in a shared log.

Implementation for efficient log storage

A method, apparatus, electronic device and storage medium for data caching based on data popularity is provided. In the method, first access data transmitted by at least one client is received. The first access data represents an instruction log of a remote direct data read instruction transmitted by the client for target data cached in a non-uniform memory access structure. A data popularity of the target data is obtained based on the first access data. The data popularity represents a frequency of the target data accessed by the remote direct data read instruction. Based on the data popularity of the target data, the target data is cached to a target location in a data storage unit implemented based on the non-uniform memory access structure. Alternatively, the target data out of the data storage unit is migrated. The target location has a data read-write speed corresponding to the data popularity.

Data caching based on data popularity

Systems and methods are provided for improved point querying of a database. The index values are separated from data and retained in cache memory to allow access without requiring a disk input/output (I/O) operation and thereby having less latency resulting from such disk I/O operations. The index values can be compressed using an algorithm such as Crit-Bit-Trie to allow storage of the index values in limited cache memory space. The index values can be selected for storage according to a least recently used approach when cache memory is insufficient to store all index values to maintain a hit rate for the cached portion and reduce the disk I/O operations.

Hash engine for conducting point queries

The embodiments of the disclosure provide a dada shuffling method, apparatus and device, a computer-readable storage medium and product. The method comprises: acquiring a data shuffling request; acquiring a shuffling request parameter linked list associated with the at least one data to be shuffled based on the data shuffling request; performing a merging operation on shuffling request parameters in the shuffling request parameter linked list according to the data amount of the data segment corresponding to the shuffling request parameter and memory buffer information to obtain at least one target request parameter; and caching the data to be shuffled corresponding to the at least one target request parameter to a predetermined remote direct memory access network card; and distributing respectively data segments associated with at least one data to be shuffled cached in the remote direct memory access network card to a target server of the data segment.

Method, apparatus and device for data shuffling, computer-readable storage medium and product

The disclosed embodiments provide various compensated charge pumps (CPs) which have a current mismatch compensation circuitry and various CP output-current-mismatch compensation structures based on using a dummy charge pump (CPdum) and feedback loops. In some embodiments, the CPdum is identically biased as the CP to be compensated. CPdum is configured to sense the output voltage and use the feedback loops to generate compensation currents for the CP. The compensation currents simultaneously compensate CP and CPdum. Moreover, CPdum is loaded with high impedance so that the compensation current makes sure CPdum doesn't have current mismatch. Because CP and CPdum have identical biasings and are compensated in the same manner with the same amount of current, CP output current mismatch is hence effectively eliminated.

Current-mismatch compensated charge pump for phase-locked loop applications

The system includes an intermediate-frequency (IF) synthesizer that generates an IF signal based on a reference signal, and a sub-sampling PLL (SSPLL) that generates a high-frequency output signal based on an input. A switch selects either the reference signal or the IF signal to be the input to the SSPLL. When the reference signal is the input to the SSPLL, the frequency synthesizer operates in a low-noise normal-operating mode, and when the IF signal is the input to the SSPLL, the frequency synthesizer operates in a higher-noise, frequency-acquisition mode. A sub-sampling lock detector (SSLD) determines whether the frequency synthesizer becomes unlocked during the normal-operating mode, and if so, activates the switch to move the system into the frequency-acquisition mode. It also determines whether the frequency synthesizer becomes relocked to the target frequency during the frequency-acquisition mode, and if so, activates the switch to move the system into the normal-operating mode.

Low-power, low-noise millimeter wavelength frequency synthesizer

A multilayer photonic stack comprising a lower plurality of alternating layers comprising at least A and B and an upper plurality of alternating layers comprising at least C and D, layer A comprises at least one of Al, Au, W, Ag, Ni, Ti, Pt, and Cr, layer B comprises at least one of AlO, AlN, MgO, SiO, TiO, SiN, MgF, TaO, SiC, Si, Ge, and Indium Tin Oxide (ITO), and layers C and D comprise at least one of AlO, AlN, MgO, SiO, TiO, SiN, MgF, TaO, SiC, Si, Ge, and Indium Tin Oxide (ITO).

Photonic near infrared heater

This invention relates, e.g., to a molecular delivery system comprising A. a substrate having a nanostructured surface region which comprises a plurality of nanostructures and, covalently attached to the substrate, multiple copies of a first member of a binding pair; and B. at least one vector nanoparticle which comprises, encapsulated therein, a molecule of interest, and on its surface, multiple copies of second member of the binding pair. Methods of using the molecular delivery system to deliver a molecule of interest to a cell are also described.

Catalytic delivery nanosubstrates (CDNS) for highly efficient delivery of biomolecules

A supramolecular approach has been developed for preparation of size-controllable nanoparticles, from three different molecular building blocks.

Supramolecular approach for preparation of size controllable nanoparticles

The present invention provides devices and methods for capturing rare cells. The devices and methods described herein can be used to facilitate the diagnosis and monitoring of metastatic cancers.

Device for capturing circulating cells

An interactive system adapted for lean-based control of ride or video game experiences. The system includes a vehicle seat and a motion base with a vehicle base upon which the vehicle seat is mounted. The system includes an actuator assembly moving the vehicle base and seat. A control system interprets sensor input signals and generates control signals to operate the actuator assembly to move the vehicle base and seat. Force sensors positioned in the vehicle seat sense forces applied by the passenger to the vehicle seat and transmit sensor data signals to the control system. The control signals operating the driver assembly are generated based on the sensor data, which is output from left and right sensors provided in a bench of the vehicle seat as well as in a front and a back support to provide X and Y-axis values based on passenger leaning in the vehicle seat.

Interactive lean sensor for controlling a vehicle motion system and navigating virtual environments

Growing community of inventors

Los Angeles, CA, United States of America

Hao Wang