Web-based Fax Server for Home or Small Business Use
Applying IP and Web technologies and the inherent properties of a broadband router widely used at home or in small business, this paper presents a paperless, sharable, plug-and-play, Web-based fax server for multiple users. Instead of using email via a ...
Rough Sets-Assisted Subfield Optimization for Alternating Current Plasma Display Panel
Plasma display panel technology employs a pulse-number modulation method to generate the gradation of the display. However, this method can create a false contour distortion when moving pictures are reproduced. In this paper, we propose an effective ...
Affine Motion Based CMOS Distortion Analysis and CMOS Digital Image Stabilization
The CMOS image distortion is due to the rolling shutter in CMOS image sensors (CISs) and it can be more exaggerated when a CIS camera moves rapidly. Several methods have been proposed to remove CMOS distortions made by the translational motion. But, in ...
Preamble-based Successive Cancellation Scheme for the Channel Estimation in the DS-UWB System
In this paper, we introduce a successive cancellation channel estimation scheme based on the preamble structure suggested in the DS-UWB proposal of IEEE P802.15.TG3a. In order to improve the transmission efficiency, we reduce the length of preamble ...
A Modified Selected Map ping Technique to Reduce the Peak-to-Average Power Ratio of OFDM Signal
In this paper, we propose a modified selected mapping technique to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) system. In this technique, we choose a vector with low PAPR in each coset of a linear ...
The Performance of Subcarrier Allocation Schemes Combined with Error Control Codings in OFDM Systems
With the adaptive subcarrier allocation scheme, system performance could be guaranteed by leaving out the weak subcarriers. However, under a time-variant channel, the side information can not feedback to transmitter instantly and, then, system ...
Genetic Algorithms for Blind Digital Image Stabilization Under Very Low SNR
The aim of this paper is to present an efficient technique devoted basically for digital image stabilization (DIS). As it is well known, image stabilization algorithms are implemented in video camera systems in order to remove unwanted shaking ...
A Power Line Communication Modem Based on Adaptively Received Signal Detection for Networked Home Appliances
Power line communications provide a convenient and cost-effective solution for data transmission, because power mains are the most popular and widely distributed medium in the world. However, the time-variant and unpredictable channel environment for ...
Data Transmission over Rain-Faded Broadband Fixed Wireless Access Channels
The performance evaluation of communication protocols in broadband fixed wireless access (BFWA) networks needs the accurate description of the statistical properties of the packet error process. In BFWA networks mainly operating above 20 GHz, a clear ...
On the Calculation of the Maximal MOT Throughput in T-DMB
Digital multimedia broadcasting (DMB) is one of burgeoning communication technologies, which can provide audio, video, and data services to mobile terminals using broadcasting infrastructures. Data services in terrestrial- digital multimedia ...
A Novel Transcoding Technique between EVRC and G.729A for Mobile Multimedia Devices
In this paper, we propose a novel transcoding technique between enhanced variable rate codec (EVRC) and G.729A for mobile multimedia devices. The simplest way to communicate between heterogeneous speech networks is the cascade connection of two ...
Piecewise Patching for Time-shifted TV Over HFC Networks
In video-on-demand (VOD) systems, a number of sophisticated architectures have been proposed to provide instantaneous services through the use of multicast technology. Most of the architectures focus on minimizing bandwidth requirements under the ...
Enhanced UPnP QoS Architecture for Network-adaptive Streaming Service in Home Networks
The existing versions of UPnP QoS architecture have several limitations associated with how they provide QoS-guaranteed streaming service over dynamically time-varying networks. In this paper, an enhanced UPnP QoS architecture is proposed to support ...
Collaboration of Set-Top Box and Residential Gateway Platforms
This paper introduces a means of enabling the collaboration of set-top box and residential gateway platforms. We propose an approach that can let MHP Xlets use OSGi resources and vice versa, i.e., OSGi bundles use MHP services in a simple and efficient ...
USS Monitor: A Monitoring System for Collaborative Ubiquitous Computing Environment
This paper introduces a monitoring system, USS monitor for a collaborative ubiquitous computing environment where the applications collaborate to achieve a service goal. We design USS monitor concerning the visualization of the collaboration and the ...
Biometric Access Control for Digital Media Streams in Home Networks
Methods for controlling access to digital media content in the home environment using biometric sensing techniques are described. A wireless rebroadcast system for IP-TV content was retrofitted with a combination of fingerprint authentication and face ...
Development of T-DMB Receiver Linking with CDMA Network for Interactive Data Broadcasting Services
In this paper, we present the configuration diagram of the interactive Terrestrial Digital Multimedia Broadcasting (T-DMB) system using the Code Division Multiple Access (CDMA) telecommunication network for the interactive broadcasting services. The ...
Design of a Networked Monitoring System for Home Automation
This paper presents the design and implementation of a networked monitoring system for home automation. The proposed system architecture organizes the deployed sensor nodes to form a multihop mesh network in the home environment. Multiple communication ...
Ubiquitous Services System Based on SIP
In this paper, we present the ubiquitous services system that provides multimedia services, surveillance services and remote control services. This ubiquitous services system keeps the service session based on session initiation protocol (SIP) and ...
A Base-station Centric Data Gathering Routing Protocol in Sensor Networks Useful in Home Automation Applications
In the future ubiquitous home network, sensors will collect various home environment data in the home. Since the sensor nodes are equipped with small, often irreplaceable, batteries with limited power capacity, it is essential that the network be energy-...
Adaptive Algorithms to Improve Optical Disc Drive Robustness in Recording And Playback
This paper presents a couple of algorithms which can be used to correct the blank disc error through recording and playback performance improvement through disc error determination and correction on the fly during playing. These algorithms will not only ...
A Design of a Dynamic Vibration Absorber for a DVD±RW Drive
An optical disk drive is consistently excited by high-speed rotation of a mass-unbalanced disk, which causes vibrations that greatly affect the overall reliability of the reading and writing process. To reduce the vibration, various anti-vibration ...
Corrections to "Adaptive Repetitive Control for an Eccentricity Compensation of Optical Disk Drivers"
This paper presents an adaptive repetitive control scheme for optical disk drivers to track a periodic reference signal with dynamic change in period. Periodic disturbances can be adequately attenuated using the concept of repetitive control, when ...
Security Strategy of Digital Television Middleware System
Digital television middleware is a new research field of digital television. It is a software platform in the receiver of digital television broadcasting. It allows various set-top boxes to be used in digital television broadcasting network. This paper ...
An Efficient Implementation of Motion Estimation with Weight Prediction for ITU-T H.264 MPEG-4 AVC
ITU-T H.264 MPEG-4 AVC includes weight prediction in inter prediction process to improve coding efficiency when encoding video with a fading scene. Weight prediction, however, increases complexity of motion estimation (ME) process significantly either ...
CMOS Digital Image Stabilization
In this paper, we present a CMOS digital image stabilization algorithm based on the characteristics of a rolling shutter camera. Due to the rolling shuttering mechanism of a CMOS sensor, a CMOS video frame shows CMOS distortions which are not observed ...
Novel Modulation Strategies for Class-D Amplifier
Recent advances in semiconductor technology have renewed interest in class-D audio amplifiers, especially for portable devices and consumer electronics. In addition to higher efficiency, class-D amplifiers are smaller, lighter, streamlined, cool and ...
A Practical Design Flow of Noise Reduction Algorithm for Video Post Processing
This paper presents a practical design flow, including a detailed evaluation methodology, for noise reduction algorithm used specifically in video post processing. Based on this design flow, a novel motion adaptive noise reduction algorithm is created. ...
Brightness Improvement of Color LCD Systems Using White Sub-pixel Structure and Fuzzy Mapping Algorithm
This paper presents three novel color filter structures and a fuzzy mapping algorithm for improving brightness of color LCD systems. On the basis of human vision discrimination, the three color filter structures with white sub-pixels are presented to ...
Upmixing and Downmixing Two-channel Stereo Audio for Consumer Electronics
In this comprehensive study, algorithms for upmixing, downmixing, and joint up/downmixing are examined and compared. Five upmixing algorithms based on signal decorrelation and reverberation are employed to convert two-channel stereo signals to jive-...