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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 6366272 | Providing interactions between simulated objects using force feedback A method and apparatus for providing force feedback to a user operating a human/computer interface device and interacting with a computer-generated simulation. In one aspect, a computer-implemented method simulates the interaction of simulated objects dis... | 04/02/2002 |
| 6304091 | Absolute position sensing by phase shift detection using a variable capacitor A low-cost, high-resolution capacitive position sensor is provided using a variable capacitor. A vane moves parallel to a stator, where a dielectric is interposed between vane and stator, such that the vane overlaps at least a portion of the stator, creat... | 10/16/2001 |
| 6300938 | Multiple-cylinder control device for computers and other electronic apparatus A control device including a support and multiple cylinders. A first cylinder may be rotated and translated, and a first sensor senses the rotation of the first cylinder and outputs a first control signal representative of the rotation. A second cylinder ... | 10/09/2001 |
| 6292174 | Enhanced cursor control using limited-workspace force feedback devices An interface device and method for providing enhanced cursor control with force feedback. A force feedback interface device includes a manipulandum, such as a mouse, that is moveable in a local workspace. The device is coupled to a host computer that disp... | 09/18/2001 |
| 6292170 | Designing compound force sensations for computer applications A design interface tool for designing force sensations for use with a host computer and force feedback interface device. A force feedback device is connected to a host computer that displays the interface tool. The user selects a type of force sensation a... | 09/18/2001 |
| 6288705 | Interface device and method for providing indexed cursor control with force feedback An interface device and method for providing indexing cursor control with force feedback. A force feedback interface device includes a manipulandum, such as a mouse, that is moveable in a device workspace. The device is coupled to a host computer that dis... | 09/11/2001 |
| 6285351 | Designing force sensations for computer applications including sounds A design interface tool for designing force sensations for use with a host computer and force feedback interface device. A force feedback device is connected to a host computer that displays the interface tool. The user selects a type of force sensation a... | 09/04/2001 |
| 6271828 | Force feedback interface devices providing resistance forces using a fluid A method and apparatus for interfacing the motion of an object with a digital processing system includes a sensor for detecting movement of the object along a degree of freedom. A passive pneumatic or hydraulic damper is coupled to the object to provide a... | 08/07/2001 |
| 6259382 | Isotonic-isometric force feedback interface A force feedback interface having isotonic and isometric control capability coupled to a host computer that displays a graphical environment such as a GUI. The interface includes a user manipulatable physical object movable in physical space, such as a mo... | 07/10/2001 |
| 6252583 | Memory and force output management for a force feedback system Methods and apparatus for efficient management of memory and force output in a force feedback system including a host computer and a force feedback device. A representation of device memory is maintained on the host computer to allow the host computer kno... | 06/26/2001 |
