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Consumer Electronics, IEEE Transactions on

Issue 1 • Date February 2007

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Displaying Results 1 - 25 of 47
  • IEEE Transactions on Consumer Electronics - Table of contents

    Page(s): c1
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    Freely Available from IEEE
  • IEEE Consumer Electronics Society

    Page(s): c2
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    Freely Available from IEEE
  • 2007 IEEE CONSUMER ELECTRONICS SOCIETY ADMINISTRATIVE COMMITTEE

    Page(s): i
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    Freely Available from IEEE
  • 2007 IEEE consumer electronics society officers and committee chairs

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    Freely Available from IEEE
  • Application of Three Dimensional Shape from Image Focus in LCD/TFT Displays Manufacturing

    Page(s): 1 - 4
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (924 KB) |  | HTML iconHTML  

    One of the fundamental objectives of computer vision is to reconstruct a three-dimensional (3D) structure of objects from two-dimensional (2D) images. Shape from focus (SFF) is the problem of reconstructing the depth of the scene changing actively the optics of the camera until the point of interest is in focus. The point in focus gives information about its depth through the thin lens Gaussian law. Previous SFF algorithms use 2D window for finding the best focused points. In this paper, we propose to use 3D window for finding the best focused points. The new SFF algorithm is applied on the camera mounted microscope for developing an auto-grinding equipment of LCD color filters. In order to develop thin and bright displays, TFT-LCD is used nowadays. In the manufacturing process of TFT-LCD panels, cells and color filters are put together. The protrusion which is generated by combining the two unequal sizes (difference in microns) of glasses in the construction of LCD panels causes a big problem. Therefore, the protrusion is cut to the proper height before the two glasses are put together. Usually, the number of cells in a typical TFT/LCD display is in millions. The time for the checking and cutting of protrusions greatly affects the cost of manufacturing. We, therefore, propose the use of the proposed SFF algorithms for the said problem for fast and accurate process. View full abstract»

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  • Specific video scenes enlarged and displayed on mobile phone set

    Page(s): 5 - 10
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (481 KB) |  | HTML iconHTML  

    A new system for selectively displaying fighting scenes of Sumo matches on a live HDTV video stream was built for the mobile phone set. The specific scenes of the Sumo matches were picked up, enlarged, and displayed in real-time on the QVGA display of a mobile phone set. The decision on the start fighting on the Sumo match scene was made by the Mahalanobis distance method applied to the number of the motion vectors toward left or right in each of the respective blocks on a frame. The decision on the end of Sumo match scene was made by the total motion vector magnitudes on the "end of Sumo match" frame. View full abstract»

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  • Pilot-Aided Iterative Frequency Offset Estimation for Digital Video Broadcasting (DVB) Systems

    Page(s): 11 - 16
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (630 KB) |  | HTML iconHTML  

    The main disadvantage of orthogonal frequency division multiplexing (OFDM) systems is its sensitivity to carrier frequency offset and timing offset. This paper proposes a simple way of improving the performance of the integer frequency offset (IFO) estimator in OFDM-based digital video broadcasting (DVB) system. By modifying the conventional maximum likelihood (ML) estimator to have multi-stage estimation strategy, two IFO estimators are derived. Simulations indicate that the proposed IFO estimators work robustly with reduced computational burden when compared to ML estimator. View full abstract»

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  • Development of Portable T-DMB Receiver for Data Services

    Page(s): 17 - 22
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (813 KB) |  | HTML iconHTML  

    In December 2005, Korea launched terrestrial DMB (T-DMB) services for the first time in the world, making multimedia broadcasting services available in the mobile environment. In addition to high-quality digital radio (audio) and television (video), diverse data services, such as traffic and travel information, BIFS, and visual radio, are currently being serviced. At the moment, there are no mobile/portable T-DMB terminals in the market that can support all the data services available. In this paper, we present a low-power portable T-DMB receiver, which can decode not only T-DMB video services but also various data services. In particular, it can simultaneously decode DMB video and data services within the same ensemble. View full abstract»

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  • A High-speed Fast-acquisition CMOS Phase/Frequency Detector for MB-OFDM UWB

    Page(s): 23 - 26
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (511 KB) |  | HTML iconHTML  

    A high-speed CMOS phase/frequency detector (PFD) for faster frequency acquisition is presented. An improved CMOS D-type master-slave flip-flop is described and adopted. Higher speed is attributed to the reduced node capacitances. Charge-sharing phenomena are circumvented. An input delay scheme is employed to achieve faster acquisition. The optimal delay for PFD maximum operating frequency is analytically studied and a design guide is given. View full abstract»

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  • Noise-robust channel estimation for DVB-T fixed receptions

    Page(s): 27 - 32
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (413 KB) |  | HTML iconHTML  

    This paper proposes a noise-reduction method to improve the channel-estimation performance in digital video broadcasting-terrestrial (DVB-T) receivers. In DVB-T receivers, channel estimation is usually carried out in frequency domain using known symbols, referred to the pilot. A least-squares (LS) estimator has been preferred for channel estimation due to the low complexity but it may be vulnerable to noise because it does not consider noise effect in obtaining its solution. To compensate for the weakness of the LS estimator, we propose an auto-regressive averaging method to average all estimated channel coefficients up to present time without the increase of system delay and complexity for DVB-Tfixed receptions. Computer simulation shows that the proposed method improves the estimation performance in overall SNRs. View full abstract»

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  • Two coarse frequency acquisition algorithms for OFDM based IEEE 802.11 standards

    Page(s): 33 - 38
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (542 KB) |  | HTML iconHTML  

    A novel coarse carrier frequency estimation approach is proposed for the IEEE 802.11 OFDM family. This approach employs the properties of the preamble to reduce the carrier acquisition problem to single tone frequency estimation. Two low cost algorithms are proposed. Their main features and implementation details are analyzed. The first algorithm presents good performance in moderate and high SNR multipath environments. The second algorithm is very robust in low SNR multipath scenarios. Extensive simulation results are presented. View full abstract»

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  • Performance Analysis of PO-THMA UWB System Using Mutually Orthogonal MHP Pulses

    Page(s): 39 - 45
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (517 KB) |  | HTML iconHTML  

    In this paper, we propose a pulse ordered time hopping multiple access (PO-THMA) ultra-wideband (UWB) system using modified Hermite polynomial (MHP) pulses. The MHP pulses have a mutually orthogonal property between different ordered pulses and that property makes simultaneous transmission at the same time slot without collision in the THMA UWB system, and this result in increasing transmission capacity or improving bit error rate (BER). We analyze BER of the proposed system and show that the BER performance and the transmission capacity are improved dramatically when compared with those of conventional THMA UWB system. View full abstract»

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  • A dual QPSK soft-demapper for multiband OFDM exploiting time-domain spreading and guard interval diversity

    Page(s): 46 - 49
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (249 KB) |  | HTML iconHTML  

    When considering the relative fast processing speeds and low power requirements for wireless personal area networks (WPAN) including wireless universal serial bus (WUSB) consumer based products, then the efficiency and cost effectiveness of these products become paramount. This paper presents an improved soft-output QPSK demapper suitable for the products above that not only exploits time diversity and guard carrier diversity, but also merges the demapping and symbol combining functions together to minimize CPU cycles, or memory access dependant upon the chosen implementation architecture. The proposed demapper is presented in the context of multiband OFDM version of ultra wideband (UWB) (ECMA-368) as the chosen physical implementation for high-rate wireless USB. View full abstract»

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  • QoS-aware bridge for high-speed powerline communication and Ethernet

    Page(s): 50 - 54
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (780 KB) |  | HTML iconHTML  

    Recently, high-speed powerline communication gets great attention as the home network backbone for multimedia services because of the low cost and QoS support. Since a home network is mixed with various types of networks, the high-speed powerline communication is often connected with non-QoS networks such as Ethernet. Then it is very difficult to provide end-to-end QoS for multimedia services in the home network environments since traffics are often transported to Ethernet. In this paper we deal with some QoS issues at the bridge for multimedia service when it connects high-speed powerline communication and Ethernet. Also, we introduce a QoS support Ethernet/high-speed powerline communication bridge system and shows some experimental results in this paper. View full abstract»

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  • An advanced fast channel tracking method for automotive digital TV receiver

    Page(s): 55 - 59
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (617 KB) |  | HTML iconHTML  

    In this paper, an advanced fast channel tracking method is proposed for automotive DTV (digital television) receiver. The auto channel tracking function tunes an alternative broadcaster which belongs to affiliation group automatically, when channel condition is getting worse. Auto channel tracking is a practical approach to keep comfortable reception. The proposed method substantially improves the channel tracking speed. The advantage of the proposed method is confirmed by experiments. View full abstract»

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  • Bidirectional equalizer arbitrated by Viterbi decoder path metrics

    Page(s): 60 - 64
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (338 KB) |  | HTML iconHTML  

    A bidirectional decision feedback equalizer (DFE) is proposed with the arbitration of the Viterbi decoder. The proposed DFE uses the minimum path metric between Viterbi decoders for the forward and reverse DFEs in the arbitration process. It has over 2 dB SNR gain against the conventional bidirectional DFE and the single DFE. View full abstract»

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  • Interactive terrestrial digital multimedia broadcasting (T-DMB) player

    Page(s): 65 - 71
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1142 KB) |  | HTML iconHTML  

    This paper presents an interactive terrestrial digital multimedia broadcasting (T-DMB) player. Interactive T-DMB contents consist of the main AV streams and additional data streams such as BIFS (binary format for scene) streams, OD streams, and image streams. In order to properly play interactive T-DMB contents, presented player includes BIFS decoder, BIFS manager and JPEG decoder modules. The implementation of the interactive player and its capabilities are presented along with usage examples. View full abstract»

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  • New Challenges to Designers of DTV Receivers Concerning Interference

    Page(s): 72 - 80
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (347 KB) |  | HTML iconHTML  

    Growing needs for suitable spectrum sought by wireless service providers has led the Federal Communications Commission to propose sharing of broadcast spectrum by unlicensed transmitters. Such transmitters could operate on any locally unused TV channel. Signals from nearby transmitters may cause interference to DTV receiver operation. View full abstract»

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  • Non-Invasive Testing Methods to Determine the RF Performance of Consumer DTV Receiving Appliances

    Page(s): 81 - 86
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (407 KB) |  | HTML iconHTML  

    Terrestrial DTV transmissions will be interference limited, not noise-limited in most cases. Methods to determine receiver robustness to interference are discussed and novel techniques which are non-invasive are disclosed. View full abstract»

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  • Enhancing Residential Gateways: OSGi Service Composition

    Page(s): 87 - 95
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (950 KB) |  | HTML iconHTML  

    We propose a scheme to support the composition of OSGi services as result of orchestrating atomic services at run-time. With this proposal the OSGi potentiality increases because of the huge amount of new services that can be offered as a result of appropriate combinations. To specify the service composition we propose a totally transparent BPEL-style solution which does not break the OSGi standard. However, the syntactic matchmaking provided by the OSGi standard does not enable a flexible enough automatic service composition. Thus, we propose to define a semantic OSGi platform, which combined with the BPEL-style solution fits all the OSGi service composition requirements. View full abstract»

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  • Robust HD Video Stream Transmission for Wireless DTV

    Page(s): 96 - 99
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (464 KB) |  | HTML iconHTML  

    In this paper the authors describe a clock synchronization system with buffer management mechanism that enables "TV adaptable quality" of HD (high definition) video transmission via wireless network. Like DLNA (digital living network alliance), the usage of IP based network for CE devices, especially for audio video appliance, is increasing its importance. Compared with IT technology based devices such as a PC, consumers expect CE devices to provide more stable functions and higher quality. CE devices are expected to provide audio visual contents including HD video contents with the quality better than that can be achieved with Internet streaming on a PC. Based on well considered simulation for wireless network usage at home, we have developed the buffering system with its optimized size that can offer high quality HD video transmission service to CE oriented customers. View full abstract»

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  • Efficient residential consumer device interaction with network services

    Page(s): 100 - 107
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (334 KB) |  | HTML iconHTML  

    Consumer access networks are low bandwidth, especially in the up-stream direction. This asymmetry is heightened for real-time multimedia applications. The Web wait is not acceptable when in a conversational interface. We describe the use of KPML, a protocol for transporting user stimulus. We illustrate the application of KPML to a typical consumer activity, accessing information sources over the telephone. We include results measuring KPML against other protocols for transporting user stimulus. View full abstract»

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  • Scalable message translation mechanism for the environment of heterogeneous middleware

    Page(s): 108 - 113
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1026 KB) |  | HTML iconHTML  

    Various home network middleware such as HAVi, LnCP, LonWorks, and UPnP have been designed. They coexist because one middleware cannot support diverse requests of services and devices. This circumstance creates an interoperability problem among devices based on various types of home network middleware. The Universal Middleware Bridge system is designed and implemented to solve this interoperability problem using a device conversion mechanism and a message translation mechanism among the middleware. These conversion mechanisms make it possible for devices to distinguish and control other devices connected to different middleware networks in the Universal Middleware Bridge system. These mechanisms also easily support new device and middleware by adding some XML files. View full abstract»

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  • Deployment strategy and performance evaluation of the IPv6 home network using the home server

    Page(s): 114 - 119
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (629 KB) |  | HTML iconHTML  

    IPv6 is a foreseeable technology for the ubiquitous home networks due to the increasing numbers of the consumer electronics (CEs) and the explosive demands for the home network services that require end-to-end connectivity through the Internet. In order to provide services based on IPv6 at home, a new protocol stack is required due to the late deployment of the IPv6 in the current public networks. In this paper, a protocol stack that enables an IPv6 home network is implemented. The protocol stack includes IPv4/6 dual stacks, home-to-home tunneling, protocol transition and IPv6 multicast packet forwarding over home-to-home tunneling. The packet handling performance of the IPv6 home network is evaluated on a test-bed using a home server that establishes connections between CEs and the Internet. The performance results show that the implemented protocol stack is acceptable to deploy IPv6 at home. Additionally a novel IPv4/6 transition mechanism that supports interoperability among various IPv4/6 based CEs within a home network is proposed. View full abstract»

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  • Design and Implementation of DMBonIP Gateway to Provide Internet Based DMB Service

    Page(s): 120 - 123
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (707 KB) |  | HTML iconHTML  

    This paper introduces a novel approach for extending DMB service area by making use of existing IP networks. DMBonIP Gateway, which provides RTP/SDP based Internet streaming service by generating media streams in real time from the DMB ensemble received from the air, is introduced for this purpose. This paper addresses key functional components of DMBonIP gateway and how they are designed and implemented. View full abstract»

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Aims & Scope

The primary purpose for publishing the Transactions of the Consumer Electronics Society is to present to the membership and the engineering community in general, papers on new technology oriented to Consumer Electronics.

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
R. Simon Sherratt
School Director for Teaching and Learning, School of Systems Engineering
The University of Reading
Reading, Berkshire  RG6 6AY  RG6 6AY  U.K.
r.s.sherratt@reading.ac.uk; sherratt@ieee.org
Phone:+44 (0) 118 3788588
Fax:+44 (0) 118 3788583