Computer input device

• US 20030063068A1
• Filed: 08/01/2002
• Published: 04/03/2003
• Est. Priority Date: 11/03/1999
• Status: Active Grant

• Current Assignee: InnaLabs Technologies, Inc.
• Original Assignee: Dmitri V. Simonenko, Romanov I. Yuri, Suprun E. Anton
• Inventors: Simonenko, Dmitri V., Anton, Suprun E., Yuri, Romanov I.
• Granted Patent: US 6,731,268 B2
• Time in Patent Office: Days
• US Class Current: 345/158
• CPC Class Codes: G01P 15/0888 for indicating angular acceleration
• CPC Class Codes: G01P 15/11 by inductive pick-up
• CPC Class Codes: G01P 15/18 in two or more dimensions
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors

Abstract

A computer input device used to input coordinates and three-dimensional graphical information into a computer. The device includes an acceleration sensor that has a fixed volume vessel containing a magnetic fluid. A non-magnetic inertial body is located in the magnetic fluid. Three magnetic field source are located on three perpendicular axes where each magnetic field source has an output for connection to a computer.

Claims

1. An acceleration sensor for a data input device, the acceleration sensor comprising:

a closed volume spherical vessel containing magnetic fluid;

a non-magnetic hollow inertial body contained in the spherical vessel; and

multiple magnetic field sources located around the closed vessel, wherein said magnetic field source has a data output for connection to the computer.