• Journal of the Institute of Electronics and Information Engineers
• /
• v.49 no.10
• /
• pp.251-256
• /
• 2012

Expand the market because the size of the huge funds administered by the conversion of over-the-air digital TV broadcasts in the current situation is likely to be reduced due to the influence of the media over-the-air broadcasts new paid media, digital cable TV and IPTV new mobile TV as a new growth engineis required. Broadcasting system to increase the supply and demand of the module from the ATSC-M/H DMB business existing in the domestic over-the-air broadcasters, has seen significant achievements in sleep technology with the introduction is expected. ATSC-M/H does not require a separate frequency allocation for mobile services does not interfere with the existing ATSC system simulcast, which can be performed on Android mobile handsets American-style mobile broadcast reception module to develop should. This paper is to design the software modules in the broadcasting module embedded systems that are applied on the Android platform, broadcasting from mobile handsets to see.

• KIPS Transactions on Software and Data Engineering
• /
• v.6 no.1
• /
• pp.37-44
• /
• 2017

While IoT (Internet of Things) industry has been spreading, it becomes very important for object to recognize user's information by itself without any control. Above all, gender (male, female) is dominant factor to analyze user's information on account of social and biological difference between male and female. However since each gender consists of diverse face feature, face-based gender classification research is still in challengeable research field. Also to apply gender classification system to IoT, size of device should be reduced and device should be operated with low power. Consequently, To port the function that can classify gender in real-world, this paper contributes two things. The first one is new gender classification algorithm based on deep learning and the second one is to implement real-time gender classification system in embedded board operated by low power. In our experiment, we measured frame per second for gender classification processing and power consumption in PC circumstance and mobile GPU circumstance. Therefore we verified that gender classification system based on deep learning works well with low power in mobile GPU circumstance comparing to in PC circumstance.

• Journal of Korea Society of Industrial Information Systems
• /
• v.14 no.2
• /
• pp.51-58
• /
• 2009

In this paper, a system which uses Bluetooth and Zigbee wireless communication and mobile device is designed. The temperature within vehicle and the distance betweeen the vehicle and the obstacle is measured by ultrasonic sensor system. The measured data is sent to the mobile PDA and displayed to assist safe driving.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.33 no.7B
• /
• pp.575-582
• /
• 2008

The existing patient monitoring system when the patient want own information. The patient confirm information through the medical institution. But the patient monitoring system based on the U-Healthcare, the patient always confirms own information through the mobile device including rfid reader. The patient need RFID middleware design to provide wanting service when the RFID reader read patient's tag information. The RFID middleware is consisted of RFID module, ARM processor and RS-232 interface. The RFID module is used to be inputted user information and RS-232 interface pass information by RFID middleware. Also, This system is embodied by specific patient monitoring system using embedded exclusive use ARM processor. In this paper introduces concept and action principle of RFID middleware and embodied patient monitoring system that use Qt.

• Proceedings of the Korean Information Science Society Conference
• /
• 2006.06a
• /
• pp.382-384
• /
• 2006

유비쿼터스 시대에 진입하면서 시장은 편의성과 휴대성을 점점 요구하고 한 장치에서 다양한 기능들을 수행할 수 있는 "all-in-one" 제품을 지향하고 있다. 특히 mp3player, 동영상 레이어 같은 멀티미디어요소는 모바일 디바이스에서 빠질 수 없는 기능이 되었다. 그러나 디바이스가 다양한 기능을 수행하게 될수록 내부의 하드웨어들은 더 많은 전원을 필요로 하고 있지만, 휴대성이 강조되는 모바일 디바이스에서 전지의 발전 속도가 모바일 디바이스에서 요구되는 전원모델을 충족시키지 못하고 있다. 따라서 전원 관리는 모바일 디바이스의 휴대 시간 증가를 위해서 매우 중요한 사항이 되었다. 본 논문에서는 임베디드환경의 모바일 멀티미디어 플랫폼에서 전력을 통합적으로 관리 할 수 있는 시스템 구현에 대해서 기술한다. 어플리케이션이 요구하는 전력공급 시스템을 설계하고, 이를 응용프로그램에서 제어할 수 있는 통합 소프트웨어인 디바이스 드라이버와 API를 설계하여 현재 산업계에서 요구하는 middle & high range 제품군(Smart Phone/PMP/DMB 등)에 최적화된 전력 관리 솔루션을 제공하고자 한다.

• The KIPS Transactions:PartA
• /
• v.15A no.5
• /
• pp.269-274
• /
• 2008

Recently, lots of embedded processors which can run streaming multimedia with high resolution display are introduced. Among the applications running on these embedded processors, real-time audio streaming is one of the applications that suffer from the lack of energy and memory space. In this paper, we propose a novel data compression method on scratch-pad memory, which saves both useful space on the scratch-pad memory and energy. We have implemented the data compression scheme on the GDM1202 real-time audio streaming processor, and the performance results show that we obtained 13.3% energy saving while maintaining comparable application performance to that of the non-compression case.

• Proceedings of the Korean Information Science Society Conference
• /
• 2005.07a
• /
• pp.814-816
• /
• 2005

모바일 기기의 성능 향상 및 서비스의 고품질화에 따라 한정된 전력자원의 효율적인 활용이 중요한 문제가 되고 있다. 임베디드 시스템 전력의 효율적인 활용을 위하여 전력관리를 수행하기 위해서는 부분적인 컴포넌트 전력관리 기법보다 시스템 차원의 전력관리 기법 필요하다. 또한 시스템 차원의 전력관리 기법은 컴포넌트 간의 상호작용에 대한 충분한 고려가 전제되어야 한다. 본 논문에서는 시스템 차원의 전력관리 기법에 대한 효율적인 연구수행을 지원할 수 있는 프레임워크를 제안한다. 프레임워크는 개별 컴포넌트에 대한 정보를 수집할 수 있으며 이를 기반으로 임베디드 시스템에서 상황에 맞는 전력관리 정책을 적용할 수 있다. 이때 수집된 정보는 컴포넌트간의 상호작용에 대해 분석할 수 있는 자료가 됨을 실험을 통해 검증한다.

• Journal of Satellite, Information and Communications
• /
• v.7 no.1
• /
• pp.48-52
• /
• 2012

As the growing popularity of smartphones, mobile web browsing has become one of the most important and popular applications in mobile devices. Furthermore, it is clear that the demand for PC-like full browser performance on mobile devices is increasing greatly. WebKit is an open source web browser engine adopted by Google Android. This paper proposed a technique of increasing the performance of WebKit by paralleling its libraries. This method was applied to JPEG library and the performance evaluation was conducted in PC environment. The results was used to estimate the performance prediction on multi-core mobile embedded architecture and to show the feasibility of the proposed method to estimate the performance gain on heterogeneous multi-core embedded architecture.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2003.10a
• /
• pp.695-698
• /
• 2003

Recently consuming against the advancement and the mobile machinery and tools of the Internet is expanded and it uses the Internet and the demand against the technique which controls the machineries and tools of existing with remoteness is augmented. It made a mobile web browser from the dissertation which it sees consequently and web it led and the system which controls the machineries and tools which are connected to sleep the proposal it did. And the web control system which uses the mobile machinery and tools the home network, telematics the back the next continuous research is necessary because the application field is wide.

• Proceedings of the Korean Information Science Society Conference
• /
• 2003.10c
• /
• pp.523-525
• /
• 2003

최근들어 인터넷의 발달로 인해 모바일 기기들은 기존의 음성 서비스 외에 네트워크를 통한 온라인 컨텐츠 서비스를 제공하고 있다. 그러나, 모바일 기기에 제공되는 동일한 컨텐츠들이 모바일 기기의 플랫폼에 맞게 따로 작성되어야 하는 단점이 있다. 그래서, 네트워크 기반의 플랫폼 독립성. 보안성. 이동성의 장점을 가진 자바기술을 모바일 기기에 적용하려는 연구가 계속되고 있다. 그러나, 기존의 자바가상머신을 임베디드 시스템이나 모바일 시스템과 같이 작고, 자원이 제한적인 장치에 탑재하게 되면 메모리 부족 및 성능 저하 등의 여러가지 문제가 발생할 수 있다. 이에 본 논문에서는 CLDC에서 채택한 KVM(Kilo Virtual Machine)을 분석하여 작은 footprint Java$^{TM}$ platform에 속하는 자바가상머신을 설계한다.