This paper presents modelling and analysis of a mobile 3DTV broadcast system for handheld devices. The underlying technology behind our system is the DVB-H specification which brings ordinary TV broadcast services to batterypowered handheld receivers. In our system, we simulated the broadcast of stereo video content over DVB-H to mobile handheld devices with autostereoscopic displays. In this w...

There has been an explosive growth in the use of handheld devices. With the use of handheld devices such as Personal Digital Assistants (PDAs), mobile phones, Global Positioning System (GPS) etc the world of business communication is changing. But at the same time it poses major concerns in the security. It is becoming increasingly difficult to utilize strong security protocols on handheld devi...

The adoption of wireless technologies and handheld devices is becoming widespread in business, industry, and government organizations. The use of handheld devices introduces new risks to existing enterprise computing resources. Therefore, organizations require new strategies to mitigate the security risks associated with the integration of wireless technologies into existing computing environme...

ETRI Journal, Volume 29, Number 6, December 2007 In the mobile Internet, users generally work with handheld devices with limited computing power and small screens. Their access conditions also change frequently. In this paper, we present a novel method supporting intelligent content adaptation to better suit handheld devices. The underpinning is a unit of information (UOI)– based content adapta...

This paper presents a set of components that support psychotherapy processes on mobile and office settings. One provides patients the required access to psychotherapy artefacts, enabling an adequate and tailored aid and motivation for fulfilment of common therapy tasks. Another offers therapists the ability to define and refine the artefacts, in order to present, help and react to the patient a...

T he pace of change in computer technology can be breathtaking. Frequently, this makes it difficult for programmers to maintain skills that are in demand. Nowhere is this more apparent than in one of the newest and most dynamic segments of the computer industry: hand-held devices and wireless technology. The use of handheld devices is growing rapidly, as is the demand for applications that run ...

Signature verification for handheld devices (e.g. smartphones, PDAs, etc.) as an authentication method is studied. Signature can be used to authenticate users in mobile networks for secure transactions. The challenges of signature verification on mobile devices are addressed and analyzed and the architecture for a verification platform is outlined. We propose a verification system adapted to ha...

Adequate user authentication is a persistent problem, particularly with handheld devices, which tend to be highly personal and at the fringes of an organization’s influence. Yet, these devices are being used increasingly in corporate settings where they pose a security risk, not only by the sensitive information they may contain, but also the means to access such information they may provide. U...

BACKGROUND Novel low-cost approaches for conducting rapid health assessments and health promotion interventions among underserved worker groups are needed. Recruitment and participation of construction workers is particularly challenging due to their often transient periods of work at any one construction site, and their limited time during work to participate in such studies. In the present me...

Handheld appliances such as PDAs, organisers or electronic pens are currently very popular. Handhelds are used to enter and retrieve useful information, e.g., dates, to do lists, memos and addresses. They are viewed as standalone devices and are usually not connected to other handhelds, thus sharing data between two handhelds is very difficult. Rudimentary infrastructures to exchange data betwe...