Sung-Ho Ahn
Electronics and Telecommunications Research Institute
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Publication
Featured researches published by Sung-Ho Ahn.
asian simulation conference | 2004
Sung-Ho Ahn; Vinod Cherian Joseph; Doo-Hyun Kim
Healthcare has been primarily concentrated in the hospital domain. With the current technology trends, some e-healthcare services have evolved. However, healthcare has not been accessible for the common man. Generic healthcare services available today focus on technology marvel. This paper illustrates our implementation of the healthcare service that uses the conventional telephone. The usage of telephone for facilitating Voice and Video over IP (V2oIP) communication to the home generates a new lease of life to the senior residents of the society. This embedded healthcare system uses the telephone connected to the HomeServer that connects to the hospital network over the Internet. The telephone uses a special sequence character to invoke the healthcare application. The application connects to the hospital network using Session Initiation Protocol (SIP) to facilitate multimedia communication. The output can be configured for display on the TV connected to the HomeServer and/or any conventional display.
Proceedings IEEE Workshop on Software Technologies for Future Embedded Systems. WSTFES 2003 | 2003
Ji-Young Kwak; Dong-Myong Sul; Sung-Ho Ahn; Doo-Hyun Kim
In this paper, we present a novel software architecture providing the connected multimedia services through networked embedded systems. The connected multimedia service means that a multimedia session is preserved even though an end-user moves from one computing environment to others. For getting the immediate multimedia services, all that he has to do is to carry a small mobile pad, such as PDA or cellular telephone, which shows a list of devices that he can use as I/O devices of the on-going multimedia session. He does not have to re-setup the session. When he clicks and selects the proper devices among the devices listed on the pad, the session is immediately migrated to the selected device. We, in this paper, present our novel mechanism using well-developed and commercialized protocols such as SIP and X.10 to support this new paradigm of ubiquitous multimedia services.
international conference on advanced communication technology | 2006
Sung-Ho Ahn; Jiyong Kim; Ji-Young Kwak; Jee-In Kim; Doo Hyun Kim
Ubiquitous society is come true in near future. Further more, today augmented user interface is one of the main research topics. So we suggest the intelligent table as ubiquitous furniture. That is, the intelligent table provides us to share the multimedia easily just touching the surface of table with our hands. Also this intelligent table in the meeting room gives us a chance to collaborate together. This paper illustrates our implementation of the intelligent table for augmented interface using hand gesture
international conference on advanced communication technology | 2006
Sung-Ho Ahn; Dong-Myung Sul; Seung-Han Choi; Kyung-Hee Lee
In this paper, we just glance at the Qt and GTK, which are representatives of graphic library for an embedded linux system. And we also show what is the GTK+ in developing the software for the embedded system and its features and components. We describe the implementation of the lightweight GTK builder, which generates the proper graphic library to any special embedded linux system and also analyzes any GTK applications graphic library
ubiquitous intelligence and computing | 2007
Sung-Ho Ahn; Kyung-Hee Lee; Doo-Hyun Kim; Vinod Cherian Joseph
In this paper, we propose architecture with SmartBidet and Agent embedded in videophone-based HomeServer for a ubiquitous and intelligent healthcare service. SmartBidet is a toilet stool with a urine measurement sensor that is connected to the videophone HomeServer. The SmartBidet serves as an ambient intelligent device to the users in the digital home and performs urinalysis of the user. The basic urinalysis is performed by an agent resided in the HomeServer and the result is displayed on the videophone screen and announced to the user in the restroom using the text-to-speech module. The detailed urinalysis and other medical diagnosis are performed by the hospital computing facilities over the healthcare information network. We illustrate three use cases that are categorized according to the criticality of the urinalysis.
international conference on information networking | 2001
Sung-Ho Ahn; Min-Gyu Kang; Doo-Hyun Kim; Hyung Chul Kim
We propose a multimedia data modeling scheme for the MPEG-2 video stream, which supports QoS adaptive delivery over heterogeneous network environments, like the Internet. The topics on QoS adaptation for multimedia networking are very important, since the networking environment of the Internet is very heterogeneous and varied. QoS adaptation may be considered in two aspects: the transport aspect and the payload aspect. Our approach is based on the payload aspect, in which the data rate of the payload is proactively adjusted. An MPEG-2 video stream is split into a set of scalable media objects groups, we call SMOG (scalable media objects group), in terms of the picture type and the amount of DCT coefficient. The portion of the scalable media objects is selectively transmitted to adapt the QoS requirement. This framework can satisfy the various and dynamic QoS requirements on bandwidth, even though the clients share a multipoint session. This scheme can be useful for multimedia streaming application, such a like Web-server or a video-on-demand server.
international conference on consumer electronics | 2005
Sung-Ho Ahn; Vinod Cherian Joseph; Kyung-Hee Lee; Doo-Hyun Kim
Today healthcare systems are mainly used to provide e-healthcare services in the hospital domain. We implement a multimedia healthcare embedded system that uses the telephone connected to the homeserver to initiate a multimedia communication to the hospital network using the session initiation protocol (SIP). This work illustrates our implementation of the e-healthcare service for consumer electronic devices using the conventional telephone to assist senior residents.
international conference on advanced communication technology | 2004
Sung-Ho Ahn; Vinod Cherian Joseph; Ji-Young Kwak; Kyounghee Lee; Doo-Hyun Kim
Healthcare has been primarily concentrated in the hospital domain. With the current technology trends, some e-healthcare services have evolved. However, healthcare has not been accessible for the common man. Generic healthcare services available today focus on technology marvel. This paper illustrates our implementation of the healthcare service that uses the conventional telephone. The usage of telephone for facilitating Voice and Video over IP (V2oIP) communication to the home generates a new lease of life to the senior residents of the society. This embedded healthcare system uses the telephone connected to the HomeServer that connects to the hospital network over the Internet. The telephone uses a special sequence character to invoke the healthcare application. The application connects to the hospital network using Session Initiation Protocol (SIP) to facilitate multimedia communication. The output can be configured for display on the TV connected to the HomeServer and/or any conventional display.
Archive | 2000
Hyung-Chul Kim; Sung-Ho Ahn; Min-Gyu Kang; Doo-Hyeon Kim; Seung-Ku Hwang
Archive | 2008
Jiyong Kim; Sung-Ho Ahn; Kyung-Hee Lee; Seung-Min Park