Naohiko Kohtake

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This paper proposes a new hand-held device called “InfoPoint” that allows appliances to work together over a network. We have applied the idea of “drag-and-drop” operation as provided in the GUIs of PC and workstation desktop environment. InfoPoint provides a unified interface that gives different types of appliances “drag-and-drop”-like behaviour for the(More)
Many electric appliances have recently become network reachable, and we would receive better services from them if we could use them in combination. We have therefore developed a new hand-held interaction device called “InfoStick” that serves as an “information carrier” for these appliances. For example, a user can “pick up” TV program information from a(More)
This paper introduces a novel way to allow non-expert users to create smart surroundings. Non-smart everyday objects such as furniture and appliances found in homes and offices can be converted to smart ones by attaching computers, sensors, and devices. In this way, non-smart components that form non-smart objects are made smart in advance. For our first(More)
Location-Based Services (LBS), an emerging new business based on smartphone and mobile networks, are becoming more and more popular. Most of these LBSs, however, only offer non-seamless indoor/outdoor applications and simple applications without giving stakeholders the chance to play an active role. Our specific aim is to solve these issues. This paper(More)
This paper presents u-Photo which is an interactive digital still image including information of pervasive services associated with networked appliances and sensors in pervasive computing environment. U-Photo Tools can generate a u-Photo and provide methods for discovering contextual information about these pervasive services. Users can easily find out this(More)
We present a snapshot-based direct interaction technique that enables to focus on particular embedded information corresponded to each target object from a limitless number of ubiquitous embedded information through actions of taking photos. With the proposed u-Photo which is augmented image data, available icons of embedded information will be overlaid on(More)
Although a ubiquitous computing has been widespread and computers embedded into physical objects and living environments have been increased, personal portable devices are still necessary for various interactions with embedded computers. Despite of importance of those devices, input and output capabilities of them are limited and relatively impoverished(More)
This paper proposes the concept of DIY (do-it-yourself) ubiquitous computing, an architecture allowing non-experts to establish ubiquitous computing environments in the real world. This concept has been implemented in the “u-Texture”, which is a self-organizable panel that works as a building block. While the traditional scheme attaches devices such as(More)
In this paper, we present an architecture to create extemporaneous networking on u-Texture. u-Texture is a tile shaped smart material which can be used to construct smart furnitures. Each u-Texture reacts according to what the entire smart furniture is shaped like. This reaction greatly affects the networking within a u-Texture. We therefore must allow(More)
This paper proposes a novel way that allows users to create pervasive computing environments without experts. In this way, nonsmart components which form everyday objects such as furniture and appliances commonly found in homes and offices are made smart in advance, not in the way to convert non-smart objects to smart ones by attaching computers, sensors,(More)