A confidentiality system for ISDN inter-PC high-speed file transfer

1996 ◽  
Vol 15 (2) ◽  
pp. 141-155
Author(s):  
Kiyoto Tanaka ◽  
Hiroyuki Matsumoto ◽  
Ikuro Oyaizu
Keyword(s):  
High Speed ◽  
File Transfer

FPGA-based Visible Light Communication System for Real-Time File Transmission

TEM Journal ◽  
2021 ◽  
pp. 165-170
Author(s):  
Syifaul Fuada ◽  
Rosmianto Aji Saputro
Keyword(s):  
Real Time ◽  
Digital Image ◽  
High Speed ◽  
Visible Light Communication ◽  
Mac Layer ◽  
File Transfer ◽  
Multimedia Contents ◽  
Analog Front End ◽  
Client Device ◽  
Ethernet Connection

The digital image, character/texts, audio (music), and video are the multimedia contents commonly used as objects to be transmitted on the VLC system. This paper has performed the real-time file transfer successfully using VLC technology with a UART connection. The FPGA was chosen as a DSP due to its capability in clocked-speed. We used an Ethernet connection due to its easy configuration and ability to meet the high-speed communication requirement. It was used for communicating between the host and the client device computer. This work covers the MAC layer implementation, SoC FPGA for UART connection, and analog front-end (AFE) transceiver. According to the functional test, the achieved bandwidth of the Ethernet connection is about 83.6 Mbps. However, the FPGA’s clock is set at 100 kHz only due to the transferred file does not require a high speed. Thus, the physical layer baud rate is fixed to 11520 bps; it can be used for real-time transfer of a digital image with 512 pixels with no compressed file and error at 22 cm of optical LoS channel (no lenses).

GL-Link: A Novel Telerobotics-Based Platform Supporting Distributed Mechatronic Research Via the Internet

2003 ◽  
Author(s):  
Surya P. N. Singh ◽  
Kenneth J. Waldron
Keyword(s):  
High Speed ◽  
State Universities ◽  
Video Observation ◽  
Modular System ◽  
File Transfer ◽  
Highly Sensitive ◽  
Geographically Distributed ◽  
Remote Experimentation ◽  
And Control ◽  
The Impact

Mechatronics and robotics research efforts of large complexity are increasingly interdisciplinary involving collaboration between software, hardware, controls, and scientific teams. Traditionally, the level of integration has either required repeated site-visits or location of the teams at a common site. As the teams become increasingly diverse and disperse, there is a need for distributed operations platform that not only facilitates smooth communications, but also allows for remote experimentation and control of a common robot or device. By separating the principal design functions, a modular communications platform was developed to support the distance learning and experimental requirements of ambitious mechatronic development projects. This separation results in a modular system that is scalable and customizable to the particular conditions governing an experiment. The platform leverages off-the-shelf hardware and software and the presence of Internet connectivity. Where possible, open-source options were used to make the platform extensible to a variety of platforms and applications. The system is modular and consists of: a video observation/conferencing module, a file-transfer module, and a robot teleoperation module. This allowed multiple teams to test the operation of a robot independently and asynchronously without corrupting the work being conducted by another team member. It also allowed for new forms of interaction and reduced the need for travel between the multiple geographically-distributed research teams. Novel features of this work include a modular multiplatform architecture and an integration of basic telerobotics principles to extend PC-based collaboration/conferencing technologies from a basic communications platform to a means for supporting multi-site (robotics) research experiments. This paper describes the design considerations and evaluations associated with the development of the Great Little Inter link (GL-Link) architecture. This platform was motivated by robotics research ongoing between Stanford and Ohio State Universities. The platform was tested over several months as part of the design of a high-speed quadruped robot. Results from this trial highlight the impact of highly sensitive audio and video inputs and show the need for robustness to bandwidth fluctuations.

scholarly journals Performance Evaluation of an Enhanced Uplink 3.5G System for Mobile Healthcare Applications

2008 ◽  
Vol 2008 ◽  
pp. 1-11 ◽  
Author(s):  
Dimitris Komnakos ◽  
Demosthenes Vouyioukas ◽  
Ilias Maglogiannis ◽  
Philip Constantinou
Keyword(s):  
Health Services ◽  
Real Time ◽  
High Speed ◽  
Critical Factor ◽  
Biological Data ◽  
File Transfer ◽  
Healthcare Applications ◽  
Networking Technology ◽  
Health Applications

The present paper studies the prospective and the performance of a forthcoming high-speed third generation (3.5G) networking technology, called enhanced uplink, for delivering mobile health (m-health) applications. The performance of 3.5G networks is a critical factor for successful development of m-health services perceived by end users. In this paper, we propose a methodology for performance assessment based on the joint uplink transmission of voice, real-time video, biological data (such as electrocardiogram, vital signals, and heart sounds), and healthcare records file transfer. Various scenarios were concerned in terms of real-time, nonreal-time, and emergency applications in random locations, where no other system but 3.5G is available. The accomplishment of quality of service (QoS) was explored through a step-by-step improvement of enhanced uplink system's parameters, attributing the network system for the best performance in the context of the desired m-health services.

Microfabrication research at the National Submicron Facility

1983 ◽  
Vol 41 ◽  
pp. 86-89
Author(s):  
E.D. Wolf
Keyword(s):  
Integrated Circuits ◽  
Particle Physics ◽  
High Speed ◽  
New Technology ◽  
High Energy ◽  
High Energy Particle ◽  
New Science ◽  
Wide Range ◽  
Intermediate Domain ◽  
Circuit Function

Most microelectronics devices and circuits operate faster, consume less power, execute more functions and cost less per circuit function when the feature-sizes internal to the devices and circuits are made smaller. This is part of the stimulus for the Very High-Speed Integrated Circuits (VHSIC) program. There is also a need for smaller, more sensitive sensors in a wide range of disciplines that includes electrochemistry, neurophysiology and ultra-high pressure solid state research. There is often fundamental new science (and sometimes new technology) to be revealed (and used) when a basic parameter such as size is extended to new dimensions, as is evident at the two extremes of smallness and largeness, high energy particle physics and cosmology, respectively. However, there is also a very important intermediate domain of size that spans from the diameter of a small cluster of atoms up to near one micrometer which may also have just as profound effects on society as “big” physics.

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