User manual LOGITECH 3D MOUSE & HEAD TRACKER

[. . . ] 3D Mouse & Head Tracker Techical Reference Manuel 3D Mouse Head Tracker Logitech Inc. , Fremont, CA 94555 ©1992 by Logitech, Inc. Published 1992 Printed in the United States of America No part of this document may be copied or reproduced in any form or by any means without the prior written consent of Logitech, Inc. Logitech has made every effort to ensure the accuracy of this manual. However, Logitech makes no warranties with respect to this documentation band disclaims any implied warranties of merchantability and fitness for a particular purpose. [. . . ] The first right-hand rule allows you to hold your thumb, index finger, and middle finger of the right hand at right angles to each other to indicate the positive direction of the X, Y, and Z axes (see Figure 5-2). 24 System Operation Y Z X Figure 5-3. Right-Hand Rule Showing the X, Y, Z Axis The second right-hand rule allows you to point your thumb in the positive direction of any axis and to curl your four fingers to represent positive rotation about that axis. In Figure 5-3, the thumb is pointed along the positive X axis, and the four fingers curl in the direction of positive rotation about that axis. Positive direction of rotation about the X axis Figure 5-3. Right-Hand Rule Showing Rotation About the X Axis 25 Chapter 5 Origin Points and Reference Axes The positional and orientation data generated by the control unit are based on the 3D origin points and reference axes. In Figure 5-4, the transmitter's origin point and reference axes are defined by the following: · XT is an imaginary reference axis that passes through the center of the transmitter's lower left speaker and through the center of the transmitter's lower right speaker. (Only the positive direction of this is shown in Figure 5-4. ) · YT is an imaginary reference axis passing through the center of the transmitter's top speaker and is perpendicular to XT. · ZT is an imaginary reference axis perpendicular to both XT and YT. · The transmitter's origin is the point where XT, YT, and ZT intersect. Also in Figure 5-4, the receiver's origin point and reference axes are defined by the following: · XR is an imaginary reference axis passing through the center of the receiver's lower left microphone and through the center of the receiver's lower right microphone. (Only the positive direction of this axis is shown in Figure 5-4. ) · YR is an imaginary reference axis passing through the center of the receiver's top microphone and is perpendicular to XR. · ZR is an imaginary reference axis perpendicular to both XR and YR. · The receiver's origin is the point where XR, YR, and ZR intersect. Note The transmitter's and receiver's origin points and reference axes described above also apply to the 3D Mouse transmitter and receiver. 26 System Operation YT Transmitter XT Origin YR ZT Receiver XR Origin ZR Figure 5-4. Transmitter and Receiver Origin Points and Reference Axes Positional X, Y, Z Data Positional data is the distance between the transmitter's and receiver's origin points. This is the distance the receiver's origin point is to the left or right (along the XT axis) of the transmitter's origin point (see Figure 5-4). This is the distance the receiver's origin point is above or below (along the YT axis) the transmitter's origin point-minus a 12-inch offset (see Figure 5-4). When the receiver is sitting on the desktop level with the base of the transmitter, the Y data will be approximately a negative 12 inches. This is the distance the receiver's origin point is away (along the ZT axis) from the transmitter's origin point-minus an 18-inch offset (see Figure 5-4). When the receiver is 6 inches away from the transmitter the Z axis, the Z data will be approximately a negative 12 inches. Orientation Data Orientation describes the rotation of the receiver with respect to the transmitter. The orientation is described using the aeronautical terms: Pitch, Yaw, and Roll. Pitch orientation is positive or negative rotation about the receiver's X axis. Figure 5-5 shows positive Pitch rotation. Y X Z Figure 5-5. [. . . ] To avoid interference, we recommend that you position each transmitter facing in the same direction and allow a 10-foot separation. 60 A 3D Mouse & Head Tracker Specifications This appendix defines the 3D Mouse and Head Tracker system specifications. 3D Mouse Components 3D Mouse Transmitter 3D Mouse Receiver Control Unit Power Supply Computer Cable Head Tracker Components Head Tracker Transmitter Head Tracker Receiver Control Unit Power Supply Computer Cable TEST3D Program Minimum System Requirements IBM PC or compatible computer with the following: 386 or above Coprocessor VGA graphics adapter 3 ½-inch floppy drive 2 MB (megabytes) of RAM DOS 5. 0 Operating Modes Dimensional Modes 2D Mode 3D Mode Reporting Modes Demand Reporting (3D Mode Default) Incremental Reporting (2D Mode Default) Stream Reporting Reporting Formats 2D Mode (M+ and MS) 3D Mouse (Mouse Data Report) 61 Chapter A 2D Mode Pointing Device Compatibility 3-button Logitech 2-button Microsoft Tracking Speed Up to 30 inches per second (ips) Tracking Area 5-foot-long, 100-degree cone Resolution Position. 2D Mode (400 dpi); 3D Mode (1/250 inch) Orientation. 2D Mode (not applicable); 3D Mode (1/10 degree) Ultrasonic Sound Frequency 23 kilohertz (kHz) Latency 30 milliseconds (ms) Reporting Rate Demand Reporting: up to 50 reports per second Incremental Reporting: up to 50 reports per second Stream Reporting: 50 reports per second only Accuracy The accuracy is 2% of the distance between the transmitter and the receiver. Operating Temperature 5 to 35 degrees Centigrade 62 3D Mouse & Head Tracker Specifications Operating Relative Humidity 10 to 90% non-condensing Reliability Electrical MTBF: 20, 000 hours Control Unit Connectors Power supply: 2-pin male Master/Slave: 15-pin high-density, D-sub Transmitter: 9-pin, mini-DIN, female Receiver: 8-pin, mini-DIN, female Audio Out: 5-pin, mini-DIN, female Serial port: 7-pin, mini-DIN, female Audio Output Amplitude: 1 Vp-p, 600 Ohm load Band Width: 15 Hz to 5 kHz Audio Input The top microphone on the 3D Mouse and Head Tracker receivers supports audio input. Pin Assignments Audio Out To support the Audio-Out feature, the control unit is equipped with a 5pin, mini-DIN socket (see Figure A-1) with pin assignments shown in Table A-1. Audio-Out Connector 63 Chapter A Table A-1. [. . . ]