Two-dimensional position detection system with MEMS accelerometer for mouse applications

Author

Lee, Seungbae ; Nam, Gi-Joon ; Chae, Junseok ; Kim, Hanseup ; Drake, Alan J.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

fYear

2001

fDate

2001

Firstpage

852

Lastpage

857

Abstract

A hybrid two-dimensional position sensing system is designed for mouse applications. The system measures the acceleration of hand-movements which are converted into two-dimensional location coordinates. The system consists of four major components: 1) MEMS accelerometers, 2) CMOS analog read-out circuitry 3) an acceleration magnitude extraction module, and 4) a 16-bit RISC microprocessor. Mechanical and analog circuit simulation shows that the designed padless mouse system can detect accelerations as small as 5.3 mg and operate up to 18 MHz.

Keywords

accelerometers; microsensors; mouse controllers (computers); readout electronics; 0 to 18 MHz; 16 bit; CMOS analog read-out circuitry; MEMS accelerometer; RISC microprocessor; acceleration magnitude extraction module; mouse applications; padless mouse system; two-dimensional location coordinates; two-dimensional position detection system; Acceleration; Accelerometers; Analog circuits; CMOS analog integrated circuits; Circuit simulation; Coordinate measuring machines; Mice; Micromechanical devices; Microprocessors; Reduced instruction set computing;

fLanguage

English

Publisher

ieee

Conference_Titel

Design Automation Conference, 2001. Proceedings

ISSN

0738-100X

Print_ISBN

1-58113-297-2

Type

conf

DOI

10.1109/DAC.2001.156255

Filename

935624