LaserPen: a new pointing device for a beam projector

2003 ◽  
Author(s):  
Kyuwan Choi ◽  
Geehyuk Lee
Keyword(s):  
Pointing Device

Fuzzy screen detector to improve performance of vision-based pointing device

2008 ◽  
Vol 44 (21) ◽  
pp. 1247
Author(s):  
S. Jang ◽  
C. Yoon ◽  
M. Park
Keyword(s):  
Improve Performance ◽  
Pointing Device

Keyboard-Based Protocol for Typing Algebraic Expressions

2020 ◽  
Vol 32 (1) ◽  
pp. 52-65
Author(s):  
Silvia Fajardo-Flores ◽  
J R G Pulido ◽  
María Andrade-Aréchiga
Keyword(s):  
Good Deal ◽  
Usual Method ◽  
Visual Disability ◽  
Visual Disabilities ◽  
Future Studies ◽  
Algebraic Expressions ◽  
Digital Format ◽  
Pointing Device

Abstract Writing mathematical contents on digital format is more common every day. The usual method is to use WYSIWYG (What You See Is What You Get) equation editors included in mainstream text editors. However, this method requires a good deal of interaction with formula templates and the use of a pointing device. While this type of equation editors is accessible to users without visual disabilities, they present barriers for users with visual disability (UWVDs). Keyboard-based equation editors should promote not only inclusion but also an acceptable performance for sighted and non-sighted users. In this article, we analyze the efficiency of the typing protocol of the Algebra Editor, an accessible keyboard-based equation editor prototype, with sighted users. Results suggest that the protocol allows typing approximately 60 characters per minute. We also analyze the type and frequency of errors made by participants and suggest improvements to the protocol, derived from the findings. These results can be used as a reference to compare the efficiency of the protocol with non-sighted users and with other equation editors in future studies.

Development of a Pointing Device that Directly Measures the Tilt Angles of a Head

2019 ◽  
Author(s):  
Soichiro Uchino ◽  
Yasutaka Nakashima ◽  
Taiki Moriyama ◽  
Masafumi Nakamura ◽  
Motoji Yamamoto
Keyword(s):  
Pointing Device

Analysis of a mechanism with redundant drive for antenna pointing

2016 ◽  
Vol 231 (2) ◽  
pp. 229-239 ◽  
Author(s):  
Xin Li ◽  
Xilun Ding ◽  
Gregory S Chirikjian
Keyword(s):  
Inverse Kinematics ◽  
Parallel Mechanism ◽  
Numerical Examples ◽  
Pointing Device ◽  
Key Factor ◽  
Rotary Motors ◽  
Redundantly Actuated ◽  
Pointing Accuracy ◽  
Forward And Inverse Kinematics ◽  
Redundant Drive

Orientation accuracy is a key factor in the design of mechanisms for antenna pointing. Our design uses a redundantly actuated parallel mechanism which may provide an effective way to solve this problem, and even can increase its payload capability and reliability. The presented mechanism can be driven by rotary motors fixed on the base to reduce the inertia of the moving parts and to lower the power consumption. The mechanism is redundantly actuated by three arms, and is used as a two-dimensional antenna tracking and pointing device. Both the forward and inverse kinematics are investigated to find all the possible solutions. Detailed characters of the platform are analyzed to demonstrate the advantages in eliminating singularities and improving pointing accuracy. A method of calculating the overconstrained orientational error is also proposed based on the differential kinematics. All the methods are verified by numerical examples.

An Adjustable Integrated Pointing Device Driver to Help People with Disabilities Improve their Computer Pointing Efficiency

2014 ◽  
Vol 563 ◽  
pp. 407-410
Author(s):  
Ching Tien Shih ◽  
Ching Hsiang Shih
Keyword(s):  
Real Time ◽  
High Efficiency ◽  
Low Cost ◽  
People With Disabilities ◽  
Device Driver ◽  
Hardware Cost ◽  
Software Technology ◽  
Pointing Device ◽  
Wireless Interfaces ◽  
Additional Hardware

In this paper we propose a novel Adjustable Integrating Pointing device Driver (AIPDD) using software technology to redesign mouse driver to integrate the functions of commercial pointing devices to help them to effectively utilize commercial pointing devices to operate computers. In contrast with the latest studies, the software-based AIPDD has the following benefits. (a) It does not require additional hardware cost and circuit preservation. (b) It supports all commercial pointing devices with standard interfaces of a computer, including PS/2, USB and wireless interfaces. (c) It can integrate unlimited devices simultaneously. (d) It is adjustable in real time. In summary, the AIPDD has the benefits of flexibility, low cost, high efficiency and high device compatibility. Keywords: Disabled, Computer pointing device, Mouse Integrate pointing device driver

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