• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.13 no.8
• /
• pp.1721-1728
• /
• 2009

Future computer interface was interchanged with person's hands or eyes from traditional mouse. In this research, I developed glove type radio mouse using gyro sensor that is replaced mouse cursor movement with persons's hand movement. Introducing a mobile sensor network technology based on bluetooth, radio mouse connected to computer system wirelessly for overcoming wire mouse's activity restrictions. Also, using USB port interface made be easy to install and to use. Developed glove type radio mouse was confirmed in the possibility of using as well as an input pointing device for presentations or games that needed many kinds of user interaction.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.42 no.1
• /
• pp.233-240
• /
• 2017

Due to a recent rise in use of a wireless keyboard and mouse, attacks which take user's input information or control user's computer remotely exploiting the physical vulnerability in the wireless communication have been reported. Especially, MouseJack, announced by Bastille Network, attacks 2.4 GHz wireless keyboards and mice through exploiting vulnerability of each manufacturer's receiver. Unlike other attacks that have been revealed, this allows to attack AES wireless keyboards. Nonetheless, there is only a brief overview of the attack but no detailed information on this attacking method. Therefore, in this paper we will analyze the Microsoft 2.4 GHz wireless mouse packet and propose a way to set the packet configuration for HID packet injection simulating a wireless mouse. We also develop a system with 2.4 GHz AES wireless keyboard HID packet injection using the proposed packet and demonstrate via experiment that HID packet injection is possible through the system we built.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
• /
• v.27 no.12
• /
• pp.1075-1083
• /
• 2016

Nowadays, the use of wireless input devices has been increasing on the basis of high convenience and portability. In particular the most widely used wireless keyboard and the mouse to use the 2.4 GHz frequency band, but due to the third party receives the electromagnetic wave from leaking when the radio equipment it is easy to obtain the personal information and the vulnerability is also being reported consistently. In this paper, implement a system to analyze and manipulate the packets of 2.4 GHz wireless keyboard and mouse using USRP device and GNU Radio package for verify the vulnerability of 2.4 GHz wireless keyboard and mouse. Using the construction system has attained a equipment specific address and key information by analyzing the communication protocol and the packet structure of the device was proved that a user can operate the PC to send the random key from long distance.

• Proceedings of the KIPE Conference
• /
• 2019.11a
• /
• pp.114-115
• /
• 2019

이 논문은 무선 전력 전송을 이용하는 마우스의 급전 패드와 리시버 설계 방법을 제안한다. 마우스의 급전 패드는 코일의 턴간 간격을 불균등하게 조절하여 균일한 자기장을 급전 패드 상에서 얻게 하며, 집전코일은 급전코일과 비교해 크기가 작기 때문에 낮은 결합계수와 품질계수를 가져 원하는 전압을 얻기 어려운데 이를 위해 PCB 코일을 멀티레이어로 제작하고 PCB 패턴의 폭을 조절하여 높은 인덕턴스를 갖게 설계한 후 유한요소해석을 통해 설계한 시스템을 시험했다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2014.05a
• /
• pp.447-450
• /
• 2014

In this paper efficient design of wireless tablet system using GalaxyNote device for PC was proposed. The designed portable tablet consists of GalaxyNote device, Stylus Pen, and Bluetooth-to-serial converter. To transmit coordinate information of Stylus Pen on GalaxyNote device to PC, wireless portable tablet uses bluetooth wireless communications. After the custom mouse filter driver divides received coordinate into x-coordinate and y-coordinate, it controls position of mouse pointer using the converted coordinates while Windows application programs are running.

• Proceedings of the KIEE Conference
• /
• 2009.07a
• /
• pp.2235_2236
• /
• 2009

본 논문에서는 초음파 센서를 이용하여 3차원 마우스 시스템을 설계하였다. 마우스에 부착시킨 초음파 발신부와 모니터에 부착시킨 초음파 수신부를 이용하여 마우스와 모니터에 부착된 수신부사이의 거리를 측정한다. 측정한 거리는 무선네트워크를 이용하여 Host PC에 전송하고, Host PC는 측정거리와 위치 추정 알고리즘을 이용하여 마우스의 위치를 추정한다. 최소자승법을 이용하여 위치 추정 알고리즘의 모의실험을 수행하였으며, 모의실험 결과로부터 최소자승법을 3차원 마우스 시스템의 위치추정 알고리즘으로 활용할 수 있음을 확인하였다.

• Science of Emotion and Sensibility
• /
• v.9 no.2
• /
• pp.93-100
• /
• 2006

This paper aims at the development and clinical evaluation of the wireless gyro-mouse system. The wireless gyro-mouse system is a computer interface with gyro-sensor and wireless communication, for the patients with upper-extremity disabled from the traffic accident or stroke to use the computer software i.e. internet browser. In the development, we focused on, firstly, to make the system wireless for the patients to manipulate the mouse easily even on the bed or wheelchair, secondly, to insert the gyro-sensor into a headband for easy don-and-doff and aesthetic appearance, thirdly, to devise a click switch in case of $C5{\sim}C6$ patients and a head nodding detection in case of C4 patients for sending click message to computer operating system. We performed evaluation experiment for patients with upper-extremities disabled from spinal cord injury. The results show that the displacement error of the cursor position against the target position during linear (vertical/horizontal) movement manipulation decreased with trial number. The click rate per minute also increased with trial number. This indicates the developed wireless gyro-mouse system would be more useful to the patients with repetitive use.

• 한국HCI학회:학술대회논문집
• /
• 2008.02a
• /
• pp.240-244
• /
• 2008

This paper presents an EMG-based wireless and wearable computer interface. The wearable device contains 4 channel EMG sensors and is able to acquire EMG signals using signal processing. Obtained signals are transmitted to a host computer through wireless communication. EMG signals induced by the volitional movements are acquired from four sites in the lower limb to extract a user's intention and six classes of wrist movements are discriminated by employing an artificial neural network (ANN). This interface could provide an aid to the limb disabled to directly access to computers and network environments without conventional computer interface such as a keyboard and a mouse.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2016.05a
• /
• pp.791-793
• /
• 2016

In the development of various types of sensor technology, the general users smartphone, the environment is increased, which can be seen in contact with the movement recognition device, such as a console game machine (Nintendo Wii), an increase in the user needs of the action recognition-based input device there is a tendency to have. Mouse existing behavior recognition, attached to the outside, is mounted in the form of mouse button is deformed, the left mouse was the role of the right button and a wheel, an acceleration sensor (or a gyro sensor) inside to, plays the role of a mouse cursor, is to manufacture a compact, there is a difficulty in operating the button, to apply a motion recognition technology is used to operate recognition technology only pointing cursor is limited. Therefore, in this paper, using a MEMS-based motion-les Koguni tion sensor (Motion Recognition Sensor), to recognize the behavior of the two points of the human body (thumb and forefinger), to generate the motion data, and this to the foundation, compared to the pre-determined matching table (moving and mouse button events cursor), and generates a control signal by determining, were studied the generated control signal input device of the computer wirelessly transmitting.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2014.11a
• /
• pp.1122-1125
• /
• 2014

본 연구에서는 전신마비 환자들이 안구 마우스를 사용하여 전등, 선풍기, 창문 제어 및 침대 각도 조절을 할 수 있고, 보호자에게 소변통 알림과 응급메시지 알림을 보낼 수 있는 홈 네트워크 시스템을 설계하고 구현한다. 또한 전신마비 환자들뿐만 아니라 일반 사용자들도 이용할 수 있도록 동일한 기능을 모바일 어플리케이션으로 구현한다. 본 연구의 입력장치인 안구 마우스는 삼성전자 창의개발연구소에서 개발한 eyeCan을 사용하였다. 전체적인 시스템은 Arduino를 사용하여 제어하고, 무선 통신은 Xbee모듈을 사용하여 구현하였다. 기존의 홈 네트워크 시스템은 일반 사용자들만 이용할 수 있지만, 본 연구에서는 루게릭 환자처럼 전신을 움직이지 못하는 환자들에게 최적화된 홈 네트워크 시스템을 구축하여 소외계층의 스마트 기기에 대한 접근성을 높이고, 자립심을 키울 수 있도록 도와준다는 점에서 의의가 있다.