Research and Application of High-Speed and Adjustable Synchronous Data Transfer System Based on USB 3.0 Peripheral Controller

2020 ◽  
pp. 2150118
Author(s):  
Junze Huang ◽  
Yueming Wang
Keyword(s):  
Transfer Rate ◽  
High Speed ◽  
Data Transfer ◽  
Hyperspectral Data ◽  
Data Block ◽  
Necessary Condition ◽  
Acquisition Time ◽  
Time Interval ◽  
Transfer System ◽  
Data Transfer Rate

Since bulk transfer bandwidth of the host is unstable, the universal serial bus (USB) 3.0 hyperspectral data transfer system can only achieve a data transfer rate of about 30 MBps which is less than one-fifteenth of USB 3.0 theoretical transfer rate of 5 Gbps. For aerial hyperspectral imager, data transfer system is required to meet different frame rates of detector for different speed-to-height ratios. In this paper, we propose a high-speed and adjustable synchronous transfer system. The USB 3.0 peripheral controller uses synchronous first in first out (FIFO) and automatic direct memory access (DMA) to achieve the highest data transfer bandwidth. The USB acquisition software collects a data block in every fixed time interval. The size in bytes of every data block must be an integer multiple of the maximum data packet payload size, which is a necessary condition for using automatic DMA and bulk transfers. The data transfer rate of the system could be adjusted by directly changing the data block size and acquisition time interval. The experimental results show that the synchronous transfer mechanism could facilitate the 100-MBps error-free and high data transfer bandwidth application on a hyperspectral data processing system.

High Speed Data Transfer System Based on the USB3.0 Technology

2014 ◽  
Vol 614 ◽  
pp. 381-384 ◽  
Author(s):  
Bang Qiang Long ◽  
Zhou Mo Zeng
Keyword(s):  
Data Structure ◽  
Transfer Rate ◽  
High Speed ◽  
Data Transfer ◽  
Data Acquisition System ◽  
Transfer System ◽  
Key Factors ◽  
Data Buffer ◽  
Storage Rate ◽  
High Speed Data

A data acquisition system is introduced based on FPGA and USB3.0 to achieved high transfer rate. FPGA control AD and manage the DDR RAM buffer. The USB connect model is synchronous Slave FIFO. The multi data buffer queue structure is selected as the data structure. The testing results show that the average storage rate is 229.1MByte/s.When using two hard disk, the rate can reach to 289.8MByte/s.Some key factors affect the transfer rate is also discussed.

High-Speed Tracking Method Using Zero Phase Error Tracking-Feed-Forward (ZPET-FF) Control for High-Data-Transfer-Rate Optical Disk Drives

2004 ◽  
Vol 43 (7B) ◽  
pp. 4811-4815 ◽  
Author(s):  
Daiichi Koide ◽  
Hitoshi Yanagisawa ◽  
Haruki Tokumaru ◽  
Shoichi Nakamura ◽  
Kiyoshi Ohishi ◽  
...  
Keyword(s):  
Transfer Rate ◽  
High Speed ◽  
Data Transfer ◽  
Phase Error ◽  
Disk Drives ◽  
Data Transfer Rate ◽  
Tracking Method ◽  
High Data ◽  
Speed Tracking ◽  
Zero Phase

scholarly journals Digital literacy of the population as a factor in the development of the digital economy in Russia

2021 ◽  
pp. 75-80
Author(s):  
Eduard Rassadnev ◽  
◽  
Andrey Osipenko ◽  
A. S. Lubeyankov ◽  
◽  
...  
Keyword(s):  
Digital Literacy ◽  
Transfer Rate ◽  
Data Transfer ◽  
Internet Access ◽  
Digital Economy ◽  
Necessary Condition ◽  
Data Transfer Rate ◽  
Reasonable Cost ◽  
Quantitative Indicators ◽  
Theoretical Foundations

The article discusses issues related to the concept of "digital literacy" of the population, shows the importance of the population's possession of competencies related to the field of digital literacy. Criteria for determining the level of digital literacy of the population are proposed. In this paper, the study of the theoretical foundations of digital literacy is based on the assumption that a necessary condition for the formation of the digital economy in the country is to achieve not only quantitative indicators of the development of digital ecosystems (the number of connections to the Internet, data transfer rate, reasonable cost of Internet access, etc.) but also qualitative criteria, expressed in the level of digital literacy. The main trends in this area are reflected, current problems are identified, and prospects for the development of digital literacy and ways to improve it among the country's population are considered.

Miniature Two-Axis Actuator for High-Data-Transfer-Rate Optical Data Storage System

2002 ◽  
Vol 41 (Part 1, No. 3B) ◽  
pp. 1804-1807 ◽  
Author(s):  
Gakuji Hashimoto ◽  
Hiroki Shima ◽  
Kenji Yamamoto ◽  
Tsutomu Maruyama ◽  
Takashi Nakao ◽  
...  
Keyword(s):  
Data Storage ◽  
Transfer Rate ◽  
Data Transfer ◽  
Storage System ◽  
Optical Data Storage ◽  
Optical Data ◽  
Data Transfer Rate ◽  
High Data ◽  
Data Storage System

scholarly journals DATA TRANSFER RATE IN NOISY CHANNELS OF WIRELESS NETWORKS

2021 ◽  
Vol 1 (132) ◽  
pp. 136-144
Author(s):  
Volodymyr Khandetskyi ◽  
Dmutro Sivtsov ◽  
Kostjantun Panin
Keyword(s):  
Wireless Networks ◽  
Transfer Rate ◽  
New Technologies ◽  
Data Transfer ◽  
Data Transfer Rate ◽  
Noisy Channels ◽  
Transfer Rates ◽  
Wide Range ◽  
Original Frame ◽  
Fragmented Data

Analysis of new technologies IEEE 802.11ac/ax of wireless networks showed that increasing their noise immunity is an actual task. The article studies the efficiency of fragmented data frames transmission. Comparison of the efficiencies in the case of retransmission of the corrupted original frame and in the case of its fragmentation in a wide range of the physical data transfer rates is carried out.

Domain and write–read characteristics for magnetic field modulated magneto‐optical disk with high data transfer rate

1989 ◽  
Vol 66 (12) ◽  
pp. 6138-6143 ◽  
Author(s):  
Harukazu Miyamoto ◽  
Toshio Niihara ◽  
Hirofumi Sukeda ◽  
Masahiko Takahashi ◽  
Takeshi Nakao ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Transfer Rate ◽  
Data Transfer ◽  
Optical Disk ◽  
Data Transfer Rate ◽  
High Data

scholarly journals Theoretical Study of a Surface Collinear Holographic Memory

Photonics ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 70
Author(s):  
Hirayama ◽  
Fujimura ◽  
Umegaki ◽  
Tanaka ◽  
Shimura
Keyword(s):  
Data Storage ◽  
Transfer Rate ◽  
Data Transfer ◽  
Coefficient Of Thermal Expansion ◽  
Storage System ◽  
Reconstructed Image ◽  
Data Transfer Rate ◽  
Holographic Memory ◽  
High Data ◽  
Volume Holograms

Holographic memory is currently attracting attention as a data storage system capable of achieving a data transfer rate of about 105~106105~106 times that of an optical disc such as Blu-ray disc. In conventional holographic memory, data is generally recorded by optical writing using volume holograms. However, a volume hologram has the problem not only that it is required to have high mechanical accuracy of a system and low coefficient of thermal expansion of a recording medium, because reconstruction tolerance is extremely low, but also that duplicating time efficiency is poor because whole data cannot be recorded at once. In this paper we proposed surface holographic memory that achieved a high data transfer rate, stable readout performance, and collective duplication by expressing holograms with fine surface asperity. Furthermore, the theoretical formulas of recording and reconstruction processes in the proposed system were derived and the reconstruction characteristics of the hologram were evaluated by numerical simulation. As a result, the proposed method generated reconstructed image readout with sufficient signal for a single page recording. However, the reconstructed image had noise, which was particular to a surface holographic memory.

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