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Consumer Electronics, 2009. ISCE '09. IEEE 13th International Symposium on

Date 25-28 May 2009

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Displaying Results 1 - 25 of 276
  • Greeting from General Chair of ISCE2009

    Page(s): i
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    Freely Available from IEEE
  • IEEE Consumer Electronics Society President's welcome

    Page(s): ii
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    Freely Available from IEEE
  • Welcome to the International Symposium on Consumer Electronics!

    Page(s): iii
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    Freely Available from IEEE
  • Introduction to the Technical Program of ISCE2009

    Page(s): iv
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    Freely Available from IEEE
  • ISCE2009 organization Committees

    Page(s): v - vii
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    Freely Available from IEEE
  • Special Session chairs and co-chairs

    Page(s): viii - x
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    Freely Available from IEEE
  • Acknowledgment for reviewers of ISCE2009

    Page(s): xi
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    Freely Available from IEEE
  • Sponsors of ISCE2009

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  • Keynote address

    Page(s): xiii
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (286 KB)  

    Provides an abstract for each of the keynote presentations and a brief professional biography of each presenter. The complete presentations were not made available for publication as part of the conference proceedings. View full abstract»

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  • Digital content creation/distribution in the WEB

    Page(s): xiv
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    Freely Available from IEEE
  • The IEEE international symposium on consumer electronics engineering excellence award 2009

    Page(s): xv
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    Freely Available from IEEE
  • Cryptography in embedded environments

    Page(s): xvi - xvii
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (262 KB)  

    This talk explores cryptographic algorithms and protocols in embedded computing environments. Cryptography is an essential technology for protecting privacy and secret information, and is now widely used in portable devices such as mobile phones and smart cards. View full abstract»

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  • Technologies for speech and audio coding

    Page(s): 148 - 149
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (374 KB) |  | HTML iconHTML  

    This paper reviews some important technologies for speech and audio coding, contrasting time domain and frequency domain processing. These technologies have contributed to the standardization activities in ITU-T and ISO/IEC MPEG, respectively. It is interesting that the standardization targets for speech and audio have started to converge recently. The MPEG USAC (Unified Speech and Audio Coding) scheme, which is being actively developed, may make use of most of the important technologies for speech and audio that have been developed so far. View full abstract»

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  • A novel voltage controlled crystal oscillator circuit

    Page(s): 329 - 333
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1682 KB) |  | HTML iconHTML  

    A novel approach reported in this paper optimizes the dynamic noise and drive sensitivity factor for achieving low phase noise VCXO circuits. An example of mode-feedback and differential coupled crystal oscillators are demonstrated for the validation of this approach, which minimizes the phase noise for inexpensive low quality factor (Q) crystal resonator based oscillators. The noise reduction techniques described in this work offers cost-effective signal source solutions for consumer electronics applications where use of expensive high Q crystal resonator is unaffordable. View full abstract»

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  • The utility of an agent type telecommunication system for medical and educational use

    Page(s): 370 - 372
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (716 KB) |  | HTML iconHTML  

    Rapid changes in technology have provided many challenges for the medical and educational systems of Japan, a modern, cosmopolitan country with a sizable and sometimes isolated rural population. We have developed a communications system in an attempt to solve some of the problems created by this social division. Herein, we show examples of some possible uses of this MuTA system, with examples of our test programs in remote education and for elderly persons. Although MuTA is basically a communication tool, it can be used in a variety of ways including telemedicine and tele-consultation. This system has great possibilities for use for many other purposes. View full abstract»

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  • XMPP-based wireless sensor network and its integration into the extended home environment

    Page(s): 794 - 797
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (710 KB) |  | HTML iconHTML  

    Wireless sensor networks have significant potential in the home environment. Home application scenarios include monitoring and interaction from several remote or local devices such as mobile phones, televisions or computers. In this paper we propose an architecture for a network based on IP-enabled wireless sensors. The communication system is based on the XMPP-protocol which is shown to be highly suitable for the sensor networks. XMPP provides a push based notification functionality that is especially appropriate for the event-driven paradigm of sensors and also provides the authentication and encryption required for data protection. We also use Atom feeds together with XMPP to enable remote web service-like access to the wireless sensor network. Integration of this XMPP-based wireless sensor network with the standard UPnP media-oriented network is done using a XMPP to UPnP gateway. In this paper, home applications and services are first introduced and different technologies supporting them are described. Next, the benefits of XMPP/IP architecture compared to non-IP sensor networks and to the UPnP based sensor network are discussed. We then present our XMPP-based wireless sensor network, with web-service like access, using XMPP and Atom feeds, also interfacing with UPnP. These solutions have been implemented on internet tablet devices allowing a flexible, highly functional and open system for integrating sensor network with the media environment. View full abstract»

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  • Novel driving method to improve picture quality of active-matrix organic light-emitting diode displays

    Page(s): 259 - 262
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (347 KB) |  | HTML iconHTML  

    A novel driving method is proposed to improve the picture quality of active-matrix organic light-emitting diode displays. A pulse-width modulation with current uniformization is presented to overcome the non-uniform characteristics and degradation phenomena of thin-film transistors and organic light-emitting diodes. Its working and effect are confirmed using an actual pixel equivalent circuit. View full abstract»

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  • Blind carrier phase correction algorithms for 8-VSB signals

    Page(s): 398 - 402
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (445 KB) |  | HTML iconHTML  

    A blind carrier phase derotator can be employed to correct and track carrier phase offset either before or after equalization in a blind adaptive receiver. This paper proposes a computationally efficient blind carrier offset recovery algorithm for 8-vestigial side-band (8-VSB) signals by designing its cost function such that its cost surface has only two global minima without any undesirable local minima. Consequently, the proposed algorithm is not complicated by the possibility of a stochastic gradient descent (SGD) algorithm converging to a false local minimum, and global convergence can always be ensured. View full abstract»

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  • A new slotted generalized Fibonacci broadcasting scheme for popular video delivery

    Page(s): 307 - 311
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (303 KB) |  | HTML iconHTML  

    It has been well recognized as an efficient approach for broadcasting popular videos by partitioning a video data stream into multiple segments and launching each segment through an individual channel simultaneously and periodically. Based on the design premises, the slotted generalized Fibonacci broadcasting (SGFB) scheme allows a client with small bandwidths to receive video segments. Given a fixed number of bandwidth channels on the client, SGFB can achieve the minimum client waiting time than other schemes. Extending SGFB, this work designs a new SGFB scheme (called SGFB+) to achieve small buffering space as well as low bandwidth demand at the client. Extensive simulation was conducted, which demonstrated that SGFB+ could have 37% smaller client buffer size than SGFB. Further simulation results also indicate that SGFB+ achieves lower client buffer demand than several broadcasting schemes. View full abstract»

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  • Classification of pH levels using a mobile phone

    Page(s): 823 - 827
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (638 KB) |  | HTML iconHTML  

    We present a novel and automated system for estimating pH levels from non-calibrated camera phone images. Experimental results show that pH levels reported by the software are consistent with the ground truth estimation. View full abstract»

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  • Simultaneous interpolation and denoising for vertical pixel mixture CCD

    Page(s): 477 - 478
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (223 KB) |  | HTML iconHTML  

    Vertical pixel mixture charge coupled device (VPMix-CCD) is with a built-in vertical pixel mixing technology to average two vertically-neighboring components of a color filter array (CFA) image within the same color filter. This paper addresses the interpolation problem for the noisy VPMixCCD image. A novel approach is proposed to exploit the hidden Markov tree (HMT) model and the minimum mean square error (MMSE) estimation for simultaneously performing both interpolation and denoising. Extensive experiments are conducted to demonstrate the superior performance of the proposed approach. View full abstract»

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  • Method to suppress multipath in radio receivers

    Page(s): 479 - 482
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (281 KB) |  | HTML iconHTML  

    The present study applies to FM radio receivers. Estimating the energy of a FM modulated signal by the Teager-Kaiser nonlinear energy operator (TEO), it is possible to detect, mitigate and/or suppress the effect of multipath on the signal captured by antenna at the receiving set. View full abstract»

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  • AODVjr routing protocol with multiple feedback policy for ZigBee network

    Page(s): 483 - 487
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (383 KB) |  | HTML iconHTML  

    AODVjr (AODV junior) is a simplified specification of AODV (ad hoc on-demand distance vector) routing protocol and suitable for ZigBee network. To enhance its routing strategy in a ZigBee network, in this paper, we proposed an AODVjr routing protocol with multiple feedback policy by means of processing main message during route discovery. The source node starts the route discovery, the destination node processes every Route Request (RREQ) and sends every route reply (RREP) as feedback information to the source node, and the source node processes multiple RREP messages for routing decision. The improved AODVjr changes the routing decision commander from destination to source and make a proactive routing decision on the basis of multiple feedback information. Through practical sensor platform, the improved AODVjr routing protocol demonstrates a better routing flexibility compared to original routing protocol so that high level routing strategy such as load balance can be implemented. We can verify that the AODVjr routing protocol with multiple feedback policy has larger flexible application in ZigBee-centered consumer electronics. View full abstract»

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  • Using Fuzzy Logic to reduce power consumption of notebooks

    Page(s): 488 - 492
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (463 KB) |  | HTML iconHTML  

    The purpose of this research is to use an FLC (fuzzy logic controller) to manage the power consumption of a notebook or an UMPC (ultra mobile PC). The FLC not only controls the LCD backlight and the speed of the fan to reduce the power consumption but also lengthens the battery recharge cycle. The EC (embedded controller) in a notebook is a device to assist the onboard power management system which consists of the cooling fan, the keyboard, the LCD backlight brightness and the battery recharging function. This research focuses on two parts: (1) an EC controlled by assembly language and (2) an FLC controlled by high-level language (VC++, Matlab). These two parts cooperate to control the backlight brightness and the speed of the cooling fan, by using the fuzzy control rule as a replacement the traditional method. The fan speed is controlled by the CPU to maintain a constant temperature. The LCD backlight brightness which is based on the keystroke frequency or the touchpad is adjusted by using the FLC. View full abstract»

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  • Regional difference in problems during the use of the cell phone by senior users

    Page(s): 493 - 494
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (404 KB) |  | HTML iconHTML  

    In this paper, authors focused on the use of the cell phone by senior people living in the urban area and the rural area in Japan. The result of the questionnaire research showed that there are differences in the use of the cell phone, especially with regard to the competence between two areas. The result showed that senior people living in the rural area have less knowledge and less motivation compared to those who living in the urban area for solving problems by themselves. View full abstract»

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