165 resources related to Multiplexing equipment
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The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.
The IEEE International Microwave Symposium (IMS) is the world s foremost conference covering the UHF, RF, wireless, microwave, millimeter-wave, terahertz, and optical frequencies; encompassing everything from basic technologies to components to systems including the latest RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation and more. The IMS includes technical and interactive sessions, exhibits, student competitions, panels, workshops, tutorials, and networking events.
The Optical Fiber Communication Conference and Exhibition (OFC) is the largest global conference and exhibition for optical communications and networking professionals. For over 40 years, OFC has drawn attendees from all corners of the globe to meet and greet, teach and learn, make connections and move business forward.OFC attracts the biggest names in the field, offers key networking and partnering opportunities, and provides insights and inspiration on the major trends and technology advances affecting the industry. From technical presentations to the latest market trends and predictions, OFC is a one-stop-shop.
All fields of satellite, airborne and ground remote sensing.
Artificial Intelligence, Control and Systems, Cyber-physical Systems, Energy and Environment, Industrial Informatics and Computational Intelligence, Robotics, Network and Communication Technologies, Power Electronics, Signal and Information Processing
The IEEE Transactions on Advanced Packaging has its focus on the modeling, design, and analysis of advanced electronic, photonic, sensors, and MEMS packaging.
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
Broadcast technology, including devices, equipment, techniques, and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.
1960 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, 1960
IEEE International Conference on Communications, World Prosperity Through Communications,, 1989
A future B-ISDN (broadband integrated services digital network) will need flexibility for various service requirements and traffic enlargement and fluctuation. The authors define the layer functions for a model of network node functions and for its interlayer interfaces. They also provide a generic example of a node configuration. The necessity of introducing a three-layered transmission system and control and management ...
IEEE GLOBECOM 1998 (Cat. NO. 98CH36250), 1998
Many network operators commenced deployment of SONET/SDH (synchronous optical network/synchronous digital hierarchy) transport networks in the early 1990s when digital crossconnect systems (DXCs) capable of switching tens of Gbits of traffic were the most suitable building blocks with which to construct a high speed meshed backbone network. Advances in electronic add-drop multiplexing (ADM) equipment with shared protection functionality has stimulated ...
Proceedings of International Conference on Image Processing, 1997
In video applications, digital encoding techniques are frequently associated to the use of compression algorithms. Compression algorithms such as the MPEG 2 standard allow economies in transmission bandwidth, while providing a service with a quality similar or better to the current analogue systems. The reduction in the number of bits necessary to represent a given sequence is achieved by exploiting ...
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A future B-ISDN (broadband integrated services digital network) will need flexibility for various service requirements and traffic enlargement and fluctuation. The authors define the layer functions for a model of network node functions and for its interlayer interfaces. They also provide a generic example of a node configuration. The necessity of introducing a three-layered transmission system and control and management layers corresponding to each layer for a flexible communications network is presented. The idea of applying self-routing switches to switching equipment in the user layer and cross- connect equipment in the logical layer is also presented.<<ETX>>
Many network operators commenced deployment of SONET/SDH (synchronous optical network/synchronous digital hierarchy) transport networks in the early 1990s when digital crossconnect systems (DXCs) capable of switching tens of Gbits of traffic were the most suitable building blocks with which to construct a high speed meshed backbone network. Advances in electronic add-drop multiplexing (ADM) equipment with shared protection functionality has stimulated interest in the prospect of ring deployment in backbone networks. ADM rings have already been deployed extensively in local and metro regions of networks with line speeds of up to STM-4 rate (622 Mbit/s). The availability of high speed electronic products at STM-16 (2.4 Gbit/s) and STM-64 (10 Gbit/s) rates, as well as the emergence of wavelength division multiplexing (WDM) products enabling 40 Gbit/s transmission capacity in a single fibre, suggests there may be a more economic alternative to meshed backbones based on DXCs. This paper compares mesh and ring topologies for backbone transport. It outlines the architectural differences between mesh and ring topologies, addresses the cost tradeoffs, and discusses the operational requirements associated with rings.
In video applications, digital encoding techniques are frequently associated to the use of compression algorithms. Compression algorithms such as the MPEG 2 standard allow economies in transmission bandwidth, while providing a service with a quality similar or better to the current analogue systems. The reduction in the number of bits necessary to represent a given sequence is achieved by exploiting spatial and temporal redundancy in the original video sequences. The number of bits necessary to achieve a given picture quality level will be variable because the redundancy in the original sequence is also variable. This means that compression algorithms such as the MPEG 2 standard will generate variable bit rate (VBR) encoded bit streams if a constant quality is to be obtained. The goal of the work described in this paper is to develop dynamic multiplexing algorithms to be implemented at the user terminal equipment and to study the potential benefits of jointly controlling the bit rate of several encoders and the channel bit rate. The bit rate of the VBR transmission channel is constrained by leaky bucket policing functions. The source bit rate is determined and controlled on a picture basis by the proposed dynamic bandwidth allocation algorithm with the objective of maintaining a minimum level of quality among all video sources using always the least possible bandwidth and without violating the traffic contract.
A FDMA/TDM multiple access/multiplexing system based on onboard FDMA-TDM conversion is believed to be very attractive for VSAT satellite communication networks, but it has two fatal drawbacks, i.e. its on board processing equipment is too complex and it lacks flexibility in applications. This paper presents a new form of FDMA/CWTDM multiple access/multiplexing included in a Chinese patent, which can overcome the two drawbacks and suit broadband applications, where CWTDM means continuous wave time division multiplexing. In an onboard FDMA-CWTDM converter, how to implement the frequency-division demultiplexer is the most important issue. It is desired that its frequency band should be as wide as possible and the number of its channels be as great as possible. This paper emphasizes the research and design for such a demultiplexer. For the purpose, a polyphase array FFT demultiplexer module has been successfully developed based on FPGA design. Theoretical analysis and experimental results show that the demultiplexer module has very good performance and can find wide application.
This paper introduces the standardization activity in ITU-T (International Telecommunication Union, Telecommunication Standardization Sector) of extending 16-kbit/s LD-CELP (low-delay code-excited linear-predictive) speech coding for personal communication systems. ITU-T Recommendation G.728 (LD- CELP) provides toll quality at 16 kbit/s with very low algorithmic delay time (0.625 ms). However, its quality significantly falls under conditions when-the received codewords are lost for 10 to 100 ms that tend to occur in radio channels. The extension of LD-CELP consists of the decoder modification proposed by AT&T that conceals the erasure of channel frames. Subjective test results using Japanese speech shows fairly good quality with this concealment for frame-erasure conditions.
Summary form only given. Optical components with increased functionality, integration, and performance are necessary to meet the expanding needs of growing metro area networks. In particular, telecommunication network nodes, which are already densely packed with components and monitoring equipment, must be able to accommodate and handle increasing numbers of channels that undergo amplification, multiplexing, add-drop, and channel balancing operations.To this end, we demonstrate a waveguide-based polymeric variable optical attenuator with over 30 dB of dynamic attenuation range that consumes less than 10 mW/port of drive power at full 30 dB attenuation. The device is based on a polymer waveguide design that also provides low insertion loss, small footprint, electronically controllable attenuation, and low insertion loss.
Many land mobile system designers and users do not realize that CATV technology can provide a means of solving system problems. This paper will describe how CATV equipment and networks can be used to expand traditional land mobile services and to encourage designers to explore uses for CATV technology in innovative system development. Off the shelf hardware, including CATV amplifiers used for amplifying mobile radio signals in long transmission lines and FM multiplexing equipment for multiplexing two way voice, video and data on the same line will be described.
The project defines a standard for high-speed (>100 Mbps at the physical layer) communication devices via electric power lines, so-called broadband over power line (BPL) devices. This standard uses transmission frequencies below 100 MHz. It is usable by all classes of BPL devices, including BPL devices used for the first-mile/last-mile connection (<1500 m to the premise) to broadband services as ...