Immersion Corporation PAT. NO. Title
1 6,866,643 Determination of finger position
2 6,864,877 Directional tactile feedback for haptic feedback interface devices
3 6,859,819 Force feedback enabled over a computer network
4 6,850,222 Passive force feedback for computer interface devices
5 6,833,846 Control methods for the reduction of limit cycle oscillations for haptic devices with displacement quantization
6 6,822,635 Haptic interface for laptop computers and other portable devices
7 6,817,973 Apparatus for controlling force for manipulation of medical instruments
8 6,816,148 Enhanced cursor control using interface devices
9 6,801,008 Force feedback system and actuator power management
10 6,781,569 Hand controller
11 6,762,745 Actuator control providing linear and continuous force output
12 6,750,877 Controlling haptic feedback for enhancing navigation in a graphical environment
13 6,717,573 Low-cost haptic mouse implementations
14 6,715,045 Host cache for haptic feedback effects
15 6,707,443 Haptic trackball device
16 6,705,871 Method and apparatus for providing an interface mechanism for a computer simulation
17 6,704,683 Direct velocity estimation for encoders using nonlinear period measurement
18 6,704,002 Position sensing methods for interface devices
19 6,704,001 Force feedback device including actuator with moving magnet
20 6,703,550 Sound data output and manipulation using haptic feedback
21 6,697,748 Digitizing system and rotary table for determining 3-D geometry of an object
22 6,697,086 Designing force sensations for force feedback computer applications
23 6,697,048 Computer interface apparatus including linkage having flex
24 6,697,044 Haptic feedback device with button forces
25 6,697,043 Haptic interface device and actuator assembly providing linear haptic sensations
26 6,693,626 Haptic feedback using a keyboard device
27 6,693,622 Vibrotactile haptic feedback devices
28 6,686,911 Control knob with control modes and force feedback
29 6,686,901 Enhancing inertial tactile feedback in computer interface devices having increased mass
30 6,683,437 Current controlled motor amplifier system
31 6,680,729 Increasing force transmissibility for tactile feedback interface devices
32 6,661,403 Method and apparatus for streaming force values to a force feedback device
33 6,654,000 Physically realistic computer simulation of medical procedures
34 6,639,581 Flexure mechanism for interface device
35 6,636,197 Haptic feedback effects for control, knobs and other interface devices
36 6,636,161 Isometric haptic feedback interface
37 6,580,417 Tactile feedback device providing tactile sensations from host commands
38 6,564,168 High-resolution optical encoder with phased-array photodetectors
39 6,563,487 Haptic feedback for directional control pads
40 6,486,872 Method and apparatus for providing passive fluid force feedback
41 6,470,302 Interface device and method for interfacing instruments to vascular access simulation systems
42 6,469,692 Interface device with tactile feedback button
43 6,448,977 Textures and other spatial sensations for a relative haptic interface device
44 6,437,771 Force feedback device including flexure member between actuator and user object
45 6,429,846 Haptic feedback for touchpads and other touch controls
46 6,424,356 Command of force sensations in a forceback system using force effect suites
47 6,424,333 Tactile feedback man-machine interface device
48 6,411,276 Hybrid control of haptic feedback for host computer and interface device
49 6,400,352 Mechanical and force transmission for force feedback devices
50 6,380,925 Force feedback device with spring selection mechanism
51 6,374,255 Haptic authoring
52 6,366,273 Force feedback cursor control interface
53 6,366,272 Providing interactions between simulated objects using force feedback
54 6,353,850 Force feedback provided in web pages
55 6,353,427 Low cost force feedback device with actuator for non-primary axis
56 6,348,911 Force feedback device including safety switch and force magnitude ramping
57 6,343,349 Memory caching for force feedback effects
58 6,342,880 Force feedback system including multiple force processors
59 RE37,528 Direct-drive manipulator for pen-based force display
60 6,323,837 Method and apparatus for interfacing an elongated object with a computer system
61 6,317,116 Graphical click surfaces for force feedback applications to provide selection of functions using cursor interaction with a trigger position of a graphical object
62 6,310,605 Force feedback interface with selective disturbance filter
63 6,305,311 Kayak back-band installation assembly and method for installing a back-band in a kayak
64 6,304,091 Absolute position sensing by phase shift detection using a variable capacitor
65 6,300,938 Multiple-cylinder control device for computers and other electronic apparatus
66 6,300,937 Method and apparatus for controlling force feedback for a computer interface device
67 6,300,936 Force feedback system including multi-tasking graphical host environment and interface device
68 6,292,174 Enhanced cursor control using limited-workspace force feedback devices
69 6,292,170 Designing compound force sensations for computer applications
70 6,288,705 Interface device and method for providing indexed cursor control with force feedback
71 6,285,351 Designing force sensations for computer applications including sounds
72 6,281,651 Haptic pointing devices
73 6,278,439 Method and apparatus for shaping force signals for a force feedback device
74 6,271,833 Low cost force feedback peripheral with button activated feel sensations
75 6,271,828 Force feedback interface devices providing resistance forces using a fluid
76 6,259,382 Isotonic-isometric force feedback interface
77 6,256,011 Multi-function control device with force feedback
78 6,252,583 Memory and force output management for a force feedback system
79 6,252,579 Interface device and method for providing enhanced cursor control with force feedback
80 6,246,390 Multiple degree-of-freedom mechanical interface to a computer system
81 6,243,078 Pointing device with forced feedback button
82 6,232,891 Force feedback interface device having isometric functionality
83 6,219,033 Method and apparatus for controlling force feedback interface systems utilizing a host computer
84 6,219,032 Method for providing force feedback to a user of an interface device based on interactions of a controlled cursor with graphical elements in a graphical user interface
85 6,211,861 Tactile mouse device
86 6,201,533 Method and apparatus for applying force in force feedback devices using friction
87 6,195,592 Method and apparatus for providing tactile sensations using an interface device
88 6,191,774 Mouse interface for providing force feedback
89 6,184,868 Haptic feedback control devices
90 6,169,540 Method and apparatus for designing force sensations in force feedback applications
91 6,166,723 Mouse interface device providing force feedback
92 6,161,126 Implementing force feedback over the World Wide Web and other computer networks
93 6,154,201 Control knob with multiple degrees of freedom and force feedback
94 6,154,198 Force feedback interface apparatus including backlash and for generating feel sensations
95 6,147,674 Method and apparatus for designing force sensations in force feedback computer applications
96 6,131,097 Haptic authoring
97 6,128,006 Force feedback mouse wheel and other control wheels
98 6,125,385 Force feedback implementation in web pages
99 6,104,382 Force feedback transmission mechanisms