• Cartoon and Animation Studies
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• s.34
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• pp.367-386
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• 2014

The development of science was crucial to recent advancements in design such as digital contents, UI, GUI, UX design. Not until the DOS evolved into Windows OS were many kinds of digital media design created, namely due to the invention of the computer mouse. A necessary element of mobile phones and Window OS is icons, since icons act as visual symbols, touch buttons and gateways into software content. Icons have undergone many stages of development simultaneously with developments in digital science. We can observe changes in mobile icon design from Skeuomorphism Design to Minimalism to Flat Design. These changes were caused by macro-level trends in design across all other industries. Apple iPhone's Skeuomorphism Design of 2013 evolved into IOS7's Minimalism and Flat Design of 2014. In the mobile world, flat design will again create big changes in design. This research aims to contribute to basic research data of GUI design that are used by creators of mobile apps to understand and anticipate future trends.

• Journal of Advanced Navigation Technology
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• v.13 no.1
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• pp.134-141
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• 2009

In this paper, it is proposed a mind map program using open API to provide mashup function. Web paradigm is changing to Web 2.0. So mashup using open API is much applied. Mashup is good method for not only web service, but making new ideas or informations. It is mind map that was made systematical like this method. In this paper, a mind map application based on mobile that provides mashup function implemented for modern people that mostly process their business during movement.

• Journal of Satellite, Information and Communications
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• v.11 no.4
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• pp.102-106
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• 2016

With the popularity of smart phones and the help of high-speed wireless communication technology, high-quality multimedia contents have become common in mobile devices. Especially, the release of Oculus Rift opens a new era of virtual reality technology in consumer market. At the same time, 3D audio technology which is currently used to make computer games more realistic will soon be applied to the next generation of mobile phone and expected to offer a more expansive experience than its visual counterpart. This paper surveys concepts, algorithms, and systems for modeling 3D sound virtual environment applications. To do this, we first introduce an important design principle for audio rendering based on physics-based geometric algorithms and multichannel technologies, and introduce an audio rendering pipeline to a scene graph-based virtual reality system and a hardware architecture to model sound propagation.

• Journal of Service Research and Studies
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• v.4 no.2
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• pp.21-35
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• 2014

The mobile environment which is based on the Internet is expanding the area of the web information systems. The mobile Internet is expanding mobile content and services due to the development of wireless network technology, the proliferation of smart terminal devices, and the emergence of a variety of mobile services platforms. A mobile web is to access to the Internet service using a mobile network or other wireless network using a smart phone or a mobile device. Recently, it is to increase the smart phone usage rapidly in the country, and many companies is entering the mobile market. There are increasing need for this operation plan of a mobile web information system. In this paper, we compared the COBIT, ITIL, the SLA, which are the International Information Systems operation standards, and the information system operation standards of Korea Information Security Agency. We analyzed the suitability of the mobile environment and information system operating instructions, and we compared mobile web, operating environments and the ITIL V3.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.224-226
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• 2015

Recently, Android-based mobile devices has increased. Thus increasing market share of the Android operating system. However, in the case of the Android operating system, it has the relatively large number of security vulnerabilities Unlike other closed operating systems. Most Android application requires the identity of the mobile device or over-authorization approval. This information can be a security threat. In addition, in the event of a security problem because obtaining the user's consent during the installation of the application is the user responsible. If these problems persist, loss of reliability of the user operating system, as well as to feel a resistance when using an Android application. In this paper, we investigate a security vulnerability in the Android operating system, and proposed countermeasures.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.12
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• pp.76-81
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• 2016

The Internet of Things (IoT) interconnects every device by allowing them to communicate directly and share information with each other and has been recently applied to various industrial fields. The integration of home appliances with IoT has led to the creation of new markets by providing quick and better experience to consumers. Although IoT has been integrated into most modern day appliances, there have been few developments for kitchen appliances. This paper presents the development of integrating IoT with the blender, one of the most widely used appliance in the kitchen. A custom application was made to interact with the blender that provides three main functions: digital controller, maintenance, and defrosting alarm. The function of digital controller provides wireless control to the conventional blender. The maintenance function detects and alerts the user on blender reliability with the intent of enabling the anticipation of hardware failures. The defrost alarm alerts the user when the ingredient has reached the appropriate and desired temperature when cooking frozen food.

• Journal of the Institute of Electronics and Information Engineers
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• v.54 no.3
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• pp.131-137
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• 2017

In order to safely protect high over current flowing into the main circuit at short-circuit without any explosion or fire, the enclosed cartridge fuse with a high interrupting capacity should be applied. But this fuse is impossible to be applied to an inner electronic circuit because of a limited space problem result from the miniaturization trend of products. Therefore, it is necessary to apply a sub-miniature fuse with a relatively small size. However the semi-enclosed fuse which is more free for an influx of air than the enclosed cartridge fuse and is possible to protect fuse elements with chemical and physical combination can be adoptable. But it has a limit of implementing the characteristic of a high breaking capacity. For these reasons, the Fe-42wt％Ni fuse elements alloy and fuse-link with less space were designed to increase a breaking capacity of sub-miniature fuse and its safety for fire and explosion was confirmed in this paper.

• Journal of Digital Contents Society
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• v.7 no.2
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• pp.103-108
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• 2006

Short-range wireless communication and networking technologies are becoming increasingly important in enabling useful mobile applications. for example, ZigBee technology is expected to provide low cost and low power connectivity for equipment that needs battery life as long as several months to several years. In addition, ZigBee can be implemented in mesh networks larger than is possible with Bluetooth. The main features of this ZigBee standard are network flexibility, low cost, very low power consumption, and low data rate in an adhoc self-organizing network among fixed, portable and moving devices. Home network/Home automation is one of the key market areas for Zigbee, with an example of a simple network This paper investigates the effect of short range wireless channel on the performance of Zigbee system and DSSS-BPSK signal transmission in AWGN, interference and Rician fading environments. And we investigate performance degradation due to interference and fading effects in short range wireless channel. In particular, the impacts of the fading and interference level on the bit error probability is shown in BER performance figures.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.6
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• pp.1211-1217
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• 2005

Current generation embedded systems are built around only a small number of SOCs, which are again based on general-purpose embedded micro-processors, such as ARM and MIPS. These RISC-based processors are not, however, designed for specific functions such as networking and multimedia processing, whose importances have increased dramatically in recent years. Network devices for small business and home networks, are especially dependent upon such SOCs based on general processors. Except for PHY and MAC layer functions, which are built with hardware, all the network functions are processed by the embedded micro-processor. Enabling technologies such as VDSL and FTTH promise Internet access with a much higher speed, while at the same time explore the limitations of general purpose microprocessors. In this paper we design a network processor, embed it into an SOC for Home gateway, evaluate the performance rigorously, and gauge a possibility for commercialization.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.1B
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• pp.19-25
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• 2006

It's for USB to be used more frequently than another I/O devices. The Universal Serial Bus is the most successful interface in PC history. It's already the do facto interconnect for PCs, and has proliferated into consumer electronics(CE) and mobile devices as well. USB has built on many killer applications, many CE devices, many interfaces. The tangle of wires among the number of devices in your home demands wireless technology. If our devices is unwired, it solves the tangle of wires. In this paper we want to use Legacy USB functionalities, portabilities, multimedia capabilities with wireless interconnection. This paper is related to a study of USB implementation without wires. This paper is related to make the hub function of USB cordless, so it will connect host with devices without wires. In case making USB wireless, it must support the above functionalities. Moreover, It needs the data structure and the resources for host functionalities, e.g. ETD(Endpoint Transfer Descriptor), data memory. This will benefit a convenient use of USB.