Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 5844819 | Method and apparatus for aiding design of mechanism There is provided an apparatus for aiding mechanism design such that mechanism design is aided by performing simulations of mechanism operations, the apparatus comprising a section for generating mechanism operation simulation data in accordance with pred... | 12/01/1998 |
| 5831875 | Link mechanism analyzer and link mechanism joint data arithmetic apparatus There are provided a link mechanism analyzer for performing a performance confirmation or test on a simualation basis for link mechanism produced using a CAD system for a mechanism design, and a link mechanism joint data arithmetic apparatus for evaluatin... | 11/03/1998 |
| 5828866 | Real-time synchronization of concurrent views among a plurality of existing applications A synchronization system includes a motion event synchronizer and multiple application encapsulators which operate together to synchronize motion events operating in replicated multi-dimensional non-modified 3-D existing applications. The application enca... | 10/27/1998 |
| 5828574 | Adaptive feedrates from geometry modeling for NC machining A method for determining an adaptive feedrate for a machine tool used to machine a workpiece initially cut from stock using a stock-cutting program. Initial workpiece geometry is obtained from a geometry modeling program using the stock-cutting NC program... | 10/27/1998 |
| 5828573 | Manufacturing method for microlithography apparatus Methods are disclosed for decreasing the time and expense needed to design, develop, and manufacture a new or modified microlithography exposure apparatus, and for enabling the transfer precision of the various kinetic systems of the apparatus to be accur... | 10/27/1998 |
| 5825651 | Method and apparatus for maintaining and configuring systems The invention provides the ability to interactively select and configure a product among a set of related products based on availability and compatibility of features and options. It does not impose an order in the selection of products, features or optio... | 10/20/1998 |
| 5797288 | Apparatus for operating a multiple-stand mill train An apparatus for operating a multiple-stand mill train is described which significantly reduces the expense and time for designing, testing and the start-up, including the optimization phase, and for restarting the roll operation of the mill train and whi... | 08/25/1998 |
| 5798919 | System for and method of equivalent circuit reference type control In a technique of monitoring whether a physical system is normal or abnormal by continuously comparing a phenomenon taking place in the system and a phenomenon taking place in a model and also in a technique of control adopting evaluation functions using ... | 08/25/1998 |
| 5787022 | Stress related placement of engineered superabrasive cutting elements on rotary drag bits A drill bit employing selective placement of cutting elements engineered to accommodate differing loads such as are experienced at different locations on the bit crown. A method of bit design and cutting element design to achieve optimal placement for max... | 07/28/1998 |
| 5771181 | Generation for virtual reality simulator systems A system for producing realistic tactile feedback forces in a tool operation simulator. Sensors sense the location and direction of movement of a simulated tool in a simulated landscape environment to produce electrical signals representing three dimensio... | 06/23/1998 |
| 5715429 | Positioning and control apparatus that is interactively programmable using a display An apparatus for synchronously controlling the actual operation of a machine using one or more motors, such as servo motors, by simulating in program form a combination of selectable machine mechanisms, including drivers, connecting shafts, clutches, gear... | 02/03/1998 |
| 5707237 | Driving simulation system A simulation system which can provide a realistic quasi-experience of operating a conveyance. An output information collecting device 3 is provided with a conveyance model 20 which operates according to the operation information accepted from outside. The... | 01/13/1998 |
| 5691909 | Method of virtual machining to predict the accuracy of part to be made with machine tools A method is provided for virtual machining which helps predict the accuracy of parts to be made on machine tools, allocates errors in design and manufacture of machine tools, and diagnoses the source of errors in machine tools. More particularly, the pres... | 11/25/1997 |
| 5661671 | Bending angle detecting position setting device In bending angle detection, a linear projected light image formed on the surface of a workpiece is photographed by a photographing device; the actual inclination angle of a specimen is stored as data in correspondence with the inclination angle and positi... | 08/26/1997 |
| 5659480 | Method for coordinating motion control of a multiple axis machine A multiple axis machine includes a plurality of servo-motors that produce movement of a member in at least two axes. The servo-motors are controlled by a computer which runs a simulation of a line shaft power train for producing movement of the member. Sp... | 08/19/1997 |
| 5654904 | Control and 3-dimensional simulation model of temperature variations in a rapid thermal processing machine Temperature nonuniformity across a semiconductor wafer during both the transient and steady state of a typical rapid thermal processing (RTP) cycle has been a deterrent in using RTP in many ULSI unit processes. The present invention consists of a three-di... | 08/05/1997 |
| 5631861 | Force feedback and texture simulating interface device A man-machine interface is disclosed which provides force, texture, pressure and temperature information to sensing body parts. The interface is comprised of a force-generating device (900) that produces a force which is transmitted to a force-applying de... | 05/20/1997 |
| 5623642 | Method for simulating newtonian interactions over a computer network This invention enables a bandwidth efficient computer simulation of sustained contact between objects. When an object comes into sustained contact with a second object, it will communicate to the second object a transfer function describing the contact, a... | 04/22/1997 |
| 5615132 | Method and apparatus for determining position and orientation of a moveable object using accelerometers A three-dimensional position and orientation tracking system uses accelerometers to measure acceleration of a moveable object (e.g., a head-mounted display unit or a data glove). A tracking processor generates both position and orientation information on ... | 03/25/1997 |
| 5596513 | Method and apparatus for estimating internal brake energy A method and apparatus for estimating internal brake energy in a fluid cooled brake of the type used in large work machines from easily sensed machine operating parameters. The temperature of the coolant is sensed before and after it passes through the br... | 01/21/1997 |
| 5590057 | Training and certification system and method The present invention relates to a system and method for training and certifying a user to perform a task. The system includes an input device, output device and a controller. The controller receives input data from the input device and controls the outpu... | 12/31/1996 |
| 5587937 | Force reflecting haptic interface A connection element such as a thimble connects to a user's body member, through a linkage, to a ground reference. The apparatus physically exchanges a force with a user in an environment local to the user. The linkage powers at least three independent fr... | 12/24/1996 |
| 5576984 | Hydrodynamic bearing rotor orbit simulator An apparatus and method is provided for simulating a plurality of bearing orbits. The apparatus includes a first simulator for producing signals indicative of a first simulated bearing orbit; a second simulator for producing signals indicative of a second... | 11/19/1996 |
| 5570304 | Method for thermal modeling and updating of bias errors in inertial navigation instrument outputs A method for thermal modeling and updating of bias errors in inertial navigation instrument outputs relies upon piecewise cubic spline encoding of data. The temperature range of the thermal model is divided into contiguous intervals of equal length. Instr... | 10/29/1996 |
| 5568404 | Method and system for predicting sound pressure levels within a vehicle due to wind noise A programmable digital computer system is utilized for predicting sound pressure levels (SPLs) within a vehicle due to wind noise by utilizing data representing pressure spectra for vortex, reattached and turbulent boundary layer flows over a glass side w... | 10/22/1996 |
| 5555199 | Automatic design process and apparatus This invention refers to an automatic design process comprising the steps of:- (1)writing a target specification of an item to be designed to a partitioned section of a memory circuit; (2)automatically determining an address for a case stored in a case-ba... | 09/10/1996 |
| 5526254 | Simulation method and apparatus for manipulator apparatus, simulation and control method and apparatus for manipulator apparatus, and control method and apparatus for manipulator apparatus The present invention relates to a simulation or control method and apparatus for a manipulator apparatus and makes it possible to calculate three-dimensional dynamics of the entire manipulator apparatus on the real time basis using the laws of conservati... | 06/11/1996 |
| 5427531 | Dynamic simulation of mechanisms A method of dynamic simulation of mechanisms which constructs the lagrangian form of the dynamics equations as pure differential equations in terms of a minimal set of generalized coordinates. The dynamics problem is separated into two parts used in the l... | 06/27/1995 |
| 5422834 | Simulation method and system for simulating drive mechanism In place of a controlled object structure, a reaction force simulating actuator is connected to an actuator controlling the structure for recording a displacement at the connecting point. A reaction force at the connecting point after a given period of ti... | 06/06/1995 |
| 5418710 | Simulator using a neural network A simulator includes a modelling simulate section in which properties of an apparatus to be controlled are modelled. In addition, this simulator includes a neural network in which learning is performed depending on a real control quantity for the apparatu... | 05/23/1995 |
| 5410496 | Using degrees of freedom analysis to solve topological constraint systems for construction geometry in a computer aided design (cad) A method, useful in computer-aided design, for finding configurations of collections of geometric elements representing shapes of physical objects that satisfy a set of geometric constraints, when these constraints relate to topological properties of the ... | 04/25/1995 |
| 5398308 | System and method for image simulation permitting editing with common data An image simulation method and system which is capable of preparing images in a simple way by running image editing tools without programming by a compiler language. The image simulation system includes a computer system for preparing an embedded image in... | 03/14/1995 |
| 5354961 | Device and process for electrical-discharge machining of a three-dimensional cavity with a thin rotating tool electrode An EDM device for machining by electro-erosion a three-dimensional cavity by compensating for tool-electrode wear, which device includes a mechanism for rotating a tool electrode whose diameter is small in comparison to the dimensions of the cavity being ... | 10/11/1994 |
| 5325308 | Simulation method of machining steps A method for simulating machining reduces the memory capacity to store blank shape and tool shape by representing such a blank or tool shape only in terms of distances from a visual plane. This method enables a relatively low priced processing system to d... | 06/28/1994 |
| 5297057 | Method and apparatus for design and optimization for simulation of motion of mechanical linkages A method and apparatus for performing kinematic analysis of linkages using generalized mechanisms selected from a catalog of mechanisms. From an initial selection of mechanisms, the one most closely matching a desired behavior is chosen and an optimizatio... | 03/22/1994 |
| 5253189 | Qualitative kinematics A method and apparatus for performing kinematic analysis of linkages is disclosed. Generalized mechanisms are selected from a catalog of mechanisms. From an initial selection of mechanisms, the one most closely matching a desired behavior is chosen and an... | 10/12/1993 |
| 5252070 | Helmet loader for flight simulation An aircraft simulator including means for determining the g-force acting on the simulated aircraft in response to the operator's controls and means for applying to a helmet (3) worn by the operator a vertical force dependent on said g-force. The means for... | 10/12/1993 |
| 5251160 | System for blending surfaces in geometric modeling A computer-aided design system and a process generates a graphic display of a blend between a plurality of geometric primitive shapes including other blends. An interactive terminal controls a geometric modeler to generate and modify visual graphic displa... | 10/05/1993 |
| 5249151 | Multi-body mechanical system analysis apparatus and method A system is disclosed which functions in two distinct yet interrelated modes. In a modeling mode the system provides a customized multi-body model, wherein problem specific functions are created for analysis of complex real-world machines. A preprocessor ... | 09/28/1993 |
| 5209661 | Motor control desired dynamic load of a simulating system and method An apparatus and method for simulating a desired response in accordance with an external applied force. The apparatus includes a member which is responsive to the applied force, an actuator coupled to the member for exerting a torque on the member, a forc... | 05/11/1993 |
