throbber

`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`UNCLASSIFIED
`
`IDAPAPER P-3186
`
`REVIEW OF VIRTUAL ENVIRONMENT
`INTERFACE TECHNOLOGY
`
`Christine Youngblut
`Rob E. Johnston
`Sarah H. Nash
`Ruth A. Wienclaw
`Craig A. Will
`
`March 1996-
`
`Approved tor public release, unlimited distribution: 16 July 1996 .
`
`19960916139
`
`INSTITUTE
`1801 N. Beauregard
`
`FOR DEFENSE ANALYSES
`Street, Alexandria,
`Virginia
`22311-1772
`
`~MIC QUAL.l'l'Y .rnl~iECTED 3 UNCLASSIFIED
`
`IDA Log No. H 96-001239
`
`IPR2018-01045
`Sony EX1017 Page 1
`
`

`

`The work was conducted under IDA's central research program. The
`publication of this IDA document does not indicate endorsement by the
`Department of Defense, nor should the contents be construed as
`reflecting the official position of that Agency.
`
`© 19~6 Institute for Defense Analyses, 1801 N. Beauregard Street,
`Alexandria, Virginia 22311-1772 • (703) 845-2000.
`
`This material may be reproduced by or for the U.S. Government pursuant
`to the copyright license under the clause at DFARS 252.227-7013
`(10/88).
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`IPR2018-01045
`Sony EX1017 Page 2
`
`

`

`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`REPORT DOCUMENTATIOW PAGE
`
`Form Approved
`0MB No. 0704-0188
`
`including the time for reviewing instructions. searching existing data source_s.
`Public reponing burden for this collection of information is estimated to average I hour per re~nse,
`gathering and maintaining the data needed, and completing and reviewing the collection of in orrnation. Send comments regarding this burden estimate or any other aspect of this
`collection of information, including suggestions for reducing this burden, to Washington Headquaners Services, Directorate for Information Operations and Repons, 1215 Jefferson
`Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188). Washington, DC 20503.
`
`I. AGENCY USE ONLY (Leave blank)
`
`2. REPORT DATE
`March 1996
`
`3. REPORT TYPE AND DATES COVERED
`Final
`
`4. TITLE AND SUBTITLE
`Review of Virtual Environment Interface Technology
`
`5. FUNDING NUMBERS
`IDA Central Research Program
`(CRP) 9001-512
`
`6. AUTHOR(S)
`Christine Youngblut, Rob E. Johnston, Sarah H. Nash, Ruth A. Wienclaw,
`Craig A. Will
`
`7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
`Institute for Defense Analyses
`(IDA)
`180 I N. Beauregard St.
`Alexandria, VA 22311-1772
`
`9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
`Institute for Defense Analyses (IDA)
`1801 N. Beauregard St.
`Alexandria, VA 22311-1772
`
`I I. SUPPLEMENTARY NITTES
`
`8. PERFORMING ORGANIZATION REPORT
`NUMBER
`IDA Paper P-3186
`
`10. SPONSORING/MONITORING AGENCY
`REPORT NUMBER
`
`12a. DISTRIBUTION/AVAILABILITY STATEMENT
`Approved for public release, unlimited distribution: 16 July 1996.
`
`12b. DISTRIBUTION CODE
`2A
`
`13. ABSTRACT (Maximum 200 words)
`This report reviews current interface technology for use in virtual environments. Visual, tracking, ·
`auditory, primary user input (including, for example, glove, body suit, exoskeleton, track ball, and 3-
`D mouse inputs), tactile, kinesthetic, full-body motion, and olfactory interface technologies are
`covered . In each case, the relevant human capabilities are discussed, followed by descriptions of
`some .available commercial products and ongoing research and development efforts. This information
`is used as the basis for predicting how virtual environment interfaces are likely to change in the next
`five years .
`
`14. SUBJECT TERMS
`Virtual Environments, Virtual Reality, User Interfaces, Interface Technology.
`
`17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19. SECURITY CLASSIFICATION
`OFTHISPAGE
`OF REPORT
`OF ABSTRACT
`Unclassified
`Unclassified
`Unclassified
`NSN 7540-01-280-5500
`
`15. NUMBER OF PAGES
`282
`16. PRICE CODE
`
`20. LIMITATION OF ABSTRACT
`SAR
`Standard Form 298 (Rev. 2-89)
`Prescribed by ANSI Std. Z39-18
`298-102
`
`IPR2018-01045
`Sony EX1017 Page 3
`
`

`

`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`UNCLASSIFIED
`
`IDA PAPER P-3186
`
`REVIEW OF VIRTUAL ENVIRONMENT
`INTERFACE TECHNOLOGY
`
`Christine Youngblut
`Robert E. Johnston
`Sarah H. Nash
`Ruth A. Wienclaw
`Craig A. Will
`
`March 1996
`
`Approved tor publlc release, unllmlled distribution: 16 July 1996 .
`
`4'!.
`IDA
`INSTITUTE FOR DEFENSE ANALYSES
`IDA Central Research Project 9001-512
`
`DTIC QUALI'l'Y INSPECTED 3
`
`UNCLASSIFIED
`
`IPR2018-01045
`Sony EX1017 Page 4
`
`

`

`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`PREFACE
`
`This report presents a review of virtual environment interface technology from the
`perspective of the user, that is, the devices and requirements that are imposed on the user in
`order to interact with a virtual environment. Most of the work was performed as part of a
`Central Research Project, Research and Development in Virtual Environments, with some
`additional support provided by Task A-183, Virtual Reality Assessment of the Technical
`Capabilities of Surgeons and Task T-L2-1278, Cost and Effectiveness of Multimedia Train(cid:173)
`ing Technologies.
`
`The report was reviewed by the following staff members at the Institute for Defense
`Analyses: Mr. Robert L. Clover, Ms. Anne A. Douville, Dr. Dexter Fletcher, Dr. Richard
`J. Ivanetich, Dr. Michael R. Kappel, and Ms. Julia J. Loughran.
`
`The authors gratefully acknowledge the support provided by all those who took
`time from their busy schedules to discuss their products and their work .
`
`iii
`
`___ __j
`
`IPR2018-01045
`Sony EX1017 Page 5
`
`

`

`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`Table of Contents
`
`EXECUTIVE SUMMARY ........................................................................................ ES-I
`
`1. INTRODUCTION ....................................................................................................... 1
`
`1.1 Purpose .................................................................................................................. 2
`1.2 Scope ..................................................................................................................... 3
`1.3 Limitations ............................................................................................................. 3
`1.3.1 Organization .......................... : ...................................................................... 4
`
`2. VISUAL INTERFACES ..................... · ......................................................................... 5
`
`2.1 The Human Visual System .................................................................................... 6
`2.2 Commercial Products .......................................................................................... 10
`2.2.1 Datavisor Displays ..................................................................................... 12
`2.2.2 FS5 Head-Mounted Display ....................................................................... 13
`2.2.3 CyberEye IOOM and lOOS ......................................................................... 13
`2.2.4 CyberMaxx CM1800 .................................................................................. 14
`2.2.5 Dvisor Head-Mounted Display .................................................................. 14
`2.2.6 i-glasses! ..................................................................................................... 15
`2.2.7 MRG Head-Mounted Displays ................................................................... 15
`2.2.8 VIM Personal Viewer ................................................................................. 16
`2.2.9 VFXI Head-Mounted Display System ...................................................... 17
`2.2.10 VR4 Head-Mounted Display .................................................................... 18
`2.2.11 VRI HMO 133 .......................................................................................... 18
`2.2.12 CrystalEyes Shutter Glasses ..................................................................... 19
`2.2.13 VR-1100 and VR-2000 Stereoscopic Projection Systems ....................... 20
`2.2.14 BOOM 3C ................................................................................................ 21
`2.2.15 Cyberf ace 4 .............................................................................................. 22
`2.2.16 Fakespace Simulation System .................................................................. 23
`2.2.17 PUSH ........................................................................................................ 23
`2.2.18 Virtual Window ........................................................................................ 24
`2.3 Current Research and Development .................................................................... 24
`2.3.1 A TR Communications System Research Laboratories, Japan ................... 25
`2.3.2 British Aerospace pie, United Kingdom .................................................... 27
`2.3.3 BT Laboratories, United Kingdom ............................................................. 29
`
`V
`
`IPR2018-01045
`Sony EX1017 Page 6
`
`

`

`2.3.4 Canon, Inc., Japan ...................................................................................... 30
`2.3.5 Dimension Technologies, Inc ..................................................................... 31
`2.3.6 Dimensional Media Associates .................................................................. 33
`2.3.7 IBM Thomas J. Watson Research Center and Georgia Institute of
`Technology .................................................................................................. 33
`2.3.8 Infinity Multimedia .................................................................................... 34
`2.3.9 NASA Ames Research Center ................................................................... 35
`2.3.10 Purdue University ..................................................................................... 36
`2.3.11 Terumo Corporation, Japan ...................................................................... 37
`2.3.12 University of Illinois at Chicago .............................................................. 38
`2.3.13 University of New Brunswick, Canada .................................................... 39
`2.3.14 University of Washington ........................................................................ 40
`2.3.15 Xenotech, Australia .................................................................................. 41
`2.4 Summary and Expectations ................................................................................. 43
`
`3. TRACKING INTERFACES ...................................................................................... 47
`
`3.1 Head Tracking ................................. : ................................................................... 48
`3.1.1 Commercially Available Trackers ............................................................. 53
`3.1.1.1 ADL-1 .............................................................................................. 53
`3.1.1.2 Vidtronics Wrightrac ....................................................................... 54
`3.1.1.3 Fastrak .............................................................................................. 54
`3.1.1.4 Isotrak II ........................................................................................... 54
`3.1.1.5 lnsidetrak .......................................................................................... 54
`3.1.1.6 Ultratrak ........................................................................................... 55
`3.1.1.7 Flock of Birds .................................................................................. 55
`3.1.1.8 PC/BIRD .......................................................................................... 56
`3.1.1.9 SpacePad .......................................................................................... 56
`3.1.1.10 CyberTrack 3.2 .............................................................................. 57
`3.1.1.11 Wayfinder-VR ................................................................................ 57
`3.1.1.12 Mouse-Sense3D ............................................................................. 57
`3.1.1.13 Selcom AB, SELSPOT II .............................................................. 57
`3.1.1.14 OPTOTRAK 3020 ......................................................................... 58
`3.1.1.15 MacReflex Motion Measurement System ..................................... 58
`3.1.1.16 DynaSight ...................................................................................... 59
`3.1.1.17 BioVision ....................................................................................... 59
`3.1.1.18 Mandala Virtual Reality Systems .................................................. 60
`3.1.1.19 REALWare .................................................................................... 60
`3.1.1.20 RK-447 Multiple Target Tracking System .................................... 61
`3.1.1.21 Head/Hand XYZ Tracker ............................................................... 61
`3.1.1.22 GP12-3D (Freepoint 3D) ............................................................... 62
`3.1.1.23 Logitech ,3D Mouse and Head Tracker .......................................... 62
`3.1.1.24 MotionPak .............................................. :.: ..................................... 62
`3 .1.1.25 Gyro Point Pro ................................................................................ 63
`3.1.2 Current R&D in Head Tracking ................................................................. 63
`
`vi
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`IPR2018-01045
`Sony EX1017 Page 7
`
`

`

`3.1.2.1 NASA Ames Research Center ......................................................... 63
`3.1.2.2 Massachusetts Institute of Technology (MIT), Research
`Laboratory of Electronics ................................................................ 64
`3.1.2.3 Computer Graphics Systems Development (CGSD) Corporation ... 64
`3.1.2.4 University of North Carolina ........................................................... 65
`3 .1.2.5 Artificial Reality .............................................................................. 66
`3.1.2.6 Massachusetts Institute of Technology, Media Lab ........................ 67
`3.1.2.7 Sony, Computer Science Laboratory ............................................... 67
`3.1.2.8 Siemens' Central Research and Development ................................. 68
`3.1.2.9 Boeing Information and Support Services, CMU,
`Honeywell, Inc., and Virtual Vision, Inc ......................................... 68
`3.1.2.10 University of Washington .............................................................. 70
`3.2 Eye Tracking ....................................................................................................... 70
`3.2.1 Commercially Available Eye Trackers ...................................................... 70
`3.2.1.1 BioMuse ........................................................................................... 70
`3.2.1.2 Headhunter Head and Eye Tracking System ................................... 72
`3.2.1.3 Eyegaze System ............................................................................... 72
`3.2.1.4 Dual-Purkinje-Image (DPI) Eyetracker ........................................... 73
`3.2.2 Current R&D in Eye Tracking ................................................................... 73
`3.2.2.1 Hughes Training-Link Corporation ................................................. 74
`3.2.2.2 Interactive Systems Laboratories (INTERACT) ............................. 74
`3.2.2.3 State University of New York .......................................................... 75
`3.2.3 Summary and Expectations ........................................................................ 76
`
`4. AUDITORY INTERFACES ..................................................................................... 79
`
`4.1 The Human Auditory System .............................................................................. 80
`4.2 Commercially Available 3-D Audio Products .................................................... 85
`4.2.1 Acoustetron II ............................................................................................. 85
`4.2.2 Protron ........................................................................................................ 88
`4.2.3 Q Products .................................................................................................. 88
`4.2.4 RSS-10 Sound Space Processor ................................................................. 89
`4.2.5 SDX-330 Dimensional Expander ............................................................... 90
`4.2.6 SRV-330 Dimensional Space Reverb and SDE-330
`Dimensional Space Delay .......................................................................... 91
`4.2.7 SoundStorm 3D .......................................................................................... 93
`4.2.8 Virtual Audio Processing System .............................................................. 93
`4.3 Current Research and Development .................................................................... 94
`4.3.1 NASA Ames ............................................................................................... 94
`4.3.2 Naval Postgraduate School ......................................................................... 95
`4.4 Summary and Expectations ................................................................................. 95
`
`5. PRIMARY USER INPUT INTERFACES ................................................................ 97
`
`5.1 Whole-Hand and Body Inputs ............................................................................. 97
`
`vii
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`IPR2018-01045
`Sony EX1017 Page 8
`
`

`

`5.1.1 The Human Hand and Arm Position Sense ................................................ 98
`5.1.2 Commercially Available Devices ............................................................... 99
`5.1.2.1 5th Glove .......................................................................................... 99
`5.1.2.2 CyberGlove .................................................................................... 101
`5.1.2.3 Dextrous HandMaster .................................................................... 102
`5.1.2.4 Pinch Glove .................................................................................... 103
`5.1.2.5 Position Exoskeleton ArmMaster .................................................. 103
`5.1.2.6 TCAS DATAWEAR
`..................................................................... 104
`5.1.3 Current Research and Development ......................................................... 105
`5.1.3.1 Armstrong Laboratory ................................................................... 105
`5.1.3.2 Georgia Institute of Technology .................................................... 106
`5.2 3-D Pointing Input ............................................................................................. 107
`5.2.1 Commercially Available Devices ............................................................. 107
`5.2.1.1 CyberWand .................................................................................... 107
`5.2.1.2 Immersion PROBE-MD ................................................................. 108
`5.2.1.3 Magellan 3D Controller and Space Controller .............................. 109
`5.2.1.4 RingMouse ..................................................................................... 109
`5.2.1.5 Spaceball 2003 and Space Controller ............................................ 110
`5.2.2 Current R&D ............................................................................................ 111
`5.2.2.1 Digital Image Design Inc ............................................................... 111
`5.2.2.2 University of Toronto .................................................................... 112
`5.3 Summary and Expectations ............................................................................... 114
`
`6. HAPTIC INTERFACES .......................................................................................... 117
`
`6.1 Tactile Interfaces ............................................................................................... 117
`6.1.1 The Human Tactile Sense ........................................................................ 120
`6.1.2 Commercially Available Interface Devices ............................................. 123
`6.1.2.1 CyberTouch .................................................................................... 125
`6.1.2.2 TouchMaster .................................................................................. 125
`6.1.2.3 Tactool System ............................................................................... 127
`6.1.2.4 Displaced Temperature Sensing System ........................................ 127
`6.1.3 Current Research and Development ......................................................... 128
`6.1.3.1 Armstrong Laboratory ................................................................... 129
`6.1.3.2 Begej Corporation .......................................................................... 130
`6.1.3.3 Harvard University ......................................................................... 130
`6.1.3.4 Hokkaido University, Japan ........................................................... 133
`6.1.3.5 Hull University, UK ....................................................................... 134
`6.1.3.6 Massachusetts Institute of Technology .......................................... 134
`6.1.3.7 Research Center at Karlsruhe, Germany ........................................ 135
`6.1.3.8 Sandia National Laboratories ......................................................... 136
`6.1.3.9 TiNi Alloy Company ..................................................................... 137
`6.1.3.10 University of Salford, UK ............................................................ 138
`6.2 Kinesthetic Interfaces ........................................................................................
`139
`6.2.1 The Human Kinesthetic Sense ................................................................. 140
`
`viii
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`IPR2018-01045
`Sony EX1017 Page 9
`
`

`

`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`6.2.2 Commercially Available Devices ............................................................. 144
`6.2.2.1 4 DOF Force Feedback Master (Surgical Simulator) .................... 144
`. 6.2.2.2 Force Exoskeleton ArmMaster ...................................................... 144
`6.2.2.3 Impulse Engine Family .................................................................. 147
`6.2.2.4 lnteractor and lnteractor Cushion .................................................. 148
`6.2.2.5 HapticMaster .................................................................................. 148
`6.2.2.6 Hand Exoskeleton Hap tic Display ................................................. 149
`6.2.2.7 PER-Force 3DOF ........................................................................... 150
`6.2.2.8 PER-Force Handcontroller and Finger Forcer Option ................... 151
`6.2.2.9 PHANToM ..................................................................................... 153
`6.2.2.10 SAFiRE ........................................................................................ 154
`6.2.3 Current R&D ............................................................................................ 154
`6.2.3.1 Boeing Computer Services ............................................................ 155
`6.2.3.2 Computer Graphics Systems Development Corporation ............... 156
`6.2.3.3 Hokkaido University, Japan ........................................................... 157
`6.2.3.4 Massachusetts Institute of Technology, Artificial
`Intelligence Laboratory .................................................................. 158
`6.2.3.5 Massachusetts Institute of Technology, Department of
`Mechanical Engineering ................................................................ 159
`6.2.3.6 McGill University, Canada ............................................................ 161
`6.2.3.7 Ministry of International Trade and Industry, Agency of
`Industrial Science and Technology (MITI/ AIST), Japan .............. 163
`6.2.3.8 Northwestern University ................................................................ 164
`6.2.3.9 Rutgers University ......................................................................... 166
`6.2.3.10 Suzuki Motor Corporation ........................................................... 168
`6.2.3.11 Tokyo Institute of Technology, Japan ......................................... 170
`6.2.3.12 University of North Carolina ....................................................... 172
`6.2.3.13 University ofTsukuba, Japan ...................................................... 174
`6.2.3.14 University of Washington ............................................................ 175
`6.3 Summary and Expectations ............................................................................... 176
`
`7. FULL BODY MOTION INTERFACES ................................................................. 181
`
`7 .1 The Human Motion Sense ................................................................................. 182
`7.2 Self-Motion Interfaces ....................................................................................... 186
`7 .2.1 Commercial Products ............................................................................... 186
`7.2.1.1 Aerotrim ......................................................................................... 188
`7 .2.1.2 CyberPak ........................................................................................ 188
`7.2.1.3 CyberTron ...................................................................................... 189
`7.2.1.4 DreamGlider .................................................................................. 189
`7.2.1.5 Orbotron, X-otron VR, and Supertron ........................................... 190
`7.2.1.6 PemRAM Motion Bases ................................................................ 191
`7.2.1.7 SimuPod ......................................................................................... 193
`7 .2.1.8 SimuSled ........................................................................................ 193
`7 .2.2 Current Research and Development ......................................................... 194
`
`ix
`
`IPR2018-01045
`Sony EX1017 Page 10
`
`

`

`7 .2.2.1 Computer Graphics Systems Development Corporation ............... 194
`7.2.2.2 Cybemet Systems Corporation ...................................................... 195
`7 .2.2.3 Institute for Simulation and Training ............................................. 195
`7 .2.2.4 Sarcos Research Corporation ......................................................... 196
`7 .2.2.5 Systran Corporation ...................................................................... 197
`7 .2.2.6 University College London, UK .................................................... 198
`7.2.2.7 University of Tsukuba, Japan ........................................................ 199
`7.3 Passive Motion Interfaces .................................................................................. 201
`7.3.1 Commercial Products ............................................................................... 201
`7.3.1.1 Cyber Air Base ............................................................................... 201
`7 .3.1.2 Cyberchair ...................................................................................... 203
`7 .3.1.3 CyberMotion Interactive Motion Seat ........................................... 203
`7 .3.1.4 IntelliSeat ....................................................................................... 204
`7.3.1.5 SIM245 .......................................................................................... 205
`7.3.2 Current Research and Development ......................................................... 205
`7 .3 .2.1 Denne Developments Limited ....................................................... 205
`7.3.2.2 Flogiston Corporation .................................................................... 205
`7.4 Summary and Expectations ........... : ................................................................... 206
`
`8. OLFACTORY INTERFACES ................................................................................ 209
`
`8.1 The Human Olfactory Sense .............................................................................. 212
`8.2 Commercial Products ........................................................................................ 213
`8.2.1 BOC Group Olfactory Delivery System .................................................. 213
`8.2.2 Smell-Enhanced Experience System ........................................................ 213
`8.3 Current Research and Development in Olfactory Interfaces ............................. 214
`8.3.1 Artificial Reality Corporation .................................................................. 214
`8.3.2 Marketing Aromatics, Ltd ........................................................................ 215
`8.4 Summary and Expectations ........ : ...................................................................... 216
`
`9. CONCLUSIONS ...................................................................................................... 217
`
`REFERENCES ............................................................................................................. 233
`
`LIST OF ACRONYMS AND ABBREVIATIONS ..................................................... 235
`
`APPENDIX A. POINTS OF CONT ACT .................................................................... 239
`
`X
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`IPR2018-01045
`Sony EX1017 Page 11
`
`

`

`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`•
`
`List of Figures
`
`Figure 1. LEEP Optical Viewer ....................................................................................... 10
`
`Figure 2. Datavisor 10x/9ci. ............................................................................................. 12
`
`Figure 3. FS5 Head-Mounted Display ............................................................................. 13
`
`Figure 4. CyberEye 100M and lOOS ................................................................................ 13
`
`Figure 5. CyberMaxx CM1800 Display .......................................................................... 14
`
`Figure 6. CyberMaxx CM1800 Tracking ........................................................................ 14
`
`Figure 7. Dvisor Head-Mounted Display .... : .................................................................... 15
`
`Figure 8. i-glasses! ...........................................................................................................
`
`16
`
`Figure 9. MRG 2.2 Head-Mounted Display .................................................................... 16
`
`Figure 10. MRG 3c Head-Mounted Display .................................................................... 17
`
`Figure 11. MRG 4 Head-Mounted Display ..................................................................... 17
`
`Figure 12. VIM Personal Viewer lOOOHRpv .................................................................. 18
`
`Figure 13. VFXl Head-Mounted Display System ........................................................... 18
`
`Figure 14. VR4 and VR4000 Head-Mounted Displays ................................................... 19
`Figure 15. VRI HMD 133 ........ : ....................................................................................... 19
`Figure 16. CrystalEyes Shutter Glasses ........................................................................... 20
`
`Figure 17. VR-1100 Stereoscopic Projection System ...................................................... 21
`
`Figure 18. VR-2000 Stereoscopic Projection System ...................................................... 21
`
`Figure 19. BOOM 3C Visual Display .............................................................................. 22
`
`Figure 20. BOOM 3C Tracking ....................................................................................... 22
`
`Figure 21. Cyberface 4 ................................................................

This document is available on Docket Alarm but you must sign up to view it.


Or .

Accessing this document will incur an additional charge of $.

After purchase, you can access this document again without charge.

Accept $ Charge
throbber

Still Working On It

This document is taking longer than usual to download. This can happen if we need to contact the court directly to obtain the document and their servers are running slowly.

Give it another minute or two to complete, and then try the refresh button.

throbber

A few More Minutes ... Still Working

It can take up to 5 minutes for us to download a document if the court servers are running slowly.

Thank you for your continued patience.

This document could not be displayed.

We could not find this document within its docket. Please go back to the docket page and check the link. If that does not work, go back to the docket and refresh it to pull the newest information.

Your account does not support viewing this document.

You need a Paid Account to view this document. Click here to change your account type.

Your account does not support viewing this document.

Set your membership status to view this document.

With a Docket Alarm membership, you'll get a whole lot more, including:

  • Up-to-date information for this case.
  • Email alerts whenever there is an update.
  • Full text search for other cases.
  • Get email alerts whenever a new case matches your search.

Become a Member

One Moment Please

The filing “” is large (MB) and is being downloaded.

Please refresh this page in a few minutes to see if the filing has been downloaded. The filing will also be emailed to you when the download completes.

Your document is on its way!

If you do not receive the document in five minutes, contact support at support@docketalarm.com.

Sealed Document

We are unable to display this document, it may be under a court ordered seal.

If you have proper credentials to access the file, you may proceed directly to the court's system using your government issued username and password.


Access Government Site

We are redirecting you
to a mobile optimized page.





Document Unreadable or Corrupt

Refresh this Document
Go to the Docket

We are unable to display this document.

Refresh this Document
Go to the Docket