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| Number | Title | Issue Date |
| 7650247 | Method for the electrical protection of an electrical household appliance A method is provided for the electrical protection of an electrical household appliance that is used to prepare food. The appliance includes an electric pump which is supplied with alternating current in order to convey a liquid through a conduit, and a heating elem... | 01/19/2010 |
| D557453 | Light fixture | 12/11/2007 |
| 7271070 | Method for producing transistors The invention relates to a method for producing integrable semiconductor components, especially transistors or logic gates, using a p-doped semiconductor substrate. First of all, a mask is applied to the semiconductor substrate in order to define a window that is de... | 09/18/2007 |
| 4457716 | Performance monitor system for aircraft simulator In an optical sight display for a fighter aircraft pilot training simulator, a performance monitor system is described as having a visual display for providing a pictorial representation (10) to a trainee's eye view (11) of real-time information. Electron... | 07/03/1984 |
| 4451769 | Electronic compensator for an electrohydraulic servovalve Electronic compensation apparatus for modifying an input control signal, to produce a drive signal for a torque motor of an electrohydraulic servovalve. The torque motor has a frequency variable response characteristic. The apparatus includes means to det... | 05/29/1984 |
| 4439716 | Compensation apparatus for an electrohydraulic servovalve Electronic compensation apparatus for a drive system associated with a torque motor of an electrohydraulic servovalve. The apparatus includes means to define an open loop transfer function characteristic of the drive system, wherein the transfer function ... | 03/27/1984 |
| 4433824 | Video projector adjustable support Alignment and adjustable support structure for video projector is disclosed. The support structure includes the base plate 16 and at least three apertures for receiving three jack screws 22, 24 and 26. The jack screws have a length greater than the select... | 02/28/1984 |
| 4423365 | Servo control circuit The disclosure describes a digital servo control circuit to actuate an analog servo motor smoothly from an actual present position to a new desired servo position in response to digital information from a computer. The control circuit described receives f... | 12/27/1983 |
| 4414643 | Ordering system for pairing feature intersections on a simulated radar sweepline The disclosure describes a system for ordering and pairing feature boundary intersections on a sweepline of a simulated digital radar visual display screen in order to arrange a variable length list of data in accordance with a desired order. This orderin... | 11/08/1983 |
| 4405941 | Optical probe Optical probe (21) for simultaneously providing two images along independent lines-of-sight that correspond to front and side views in a single camera model visual system. An optical probe comprises a first pitch prism (24) and a second pitch prism (28). ... | 09/20/1983 |
| 4404553 | Landing light pattern generator for simulator with selective addressing of memory The disclosure is of a system for steering a landing light pattern by storing data to increase the illumination intensity for each picture element by a selected amount along a scanline in a memory circuit (11) and, then, addressing the memory circuit to b... | 09/13/1983 |
| 4398241 | Digital control circuit for an analog servo This disclosure describes digital control circuit to actuate an analog servo motor in response to digital information from a computer. The control circuit is responsive to the timing signal (13) from the computer, and includes a circuit (12) to receive in... | 08/09/1983 |
| 4330284 | Capacitive sensing device A capacitive sensing device for detecting the presence of conducting and nonconducting objects with the distance between sensing tip and object remaining nearly constant regardless of their size or mass is disclosed. The device is particularly useful with... | 05/18/1982 |
| 4321044 | Advanced G cueing system An improved G-seat system for providing kinesthetic cues to the operator of a vehicle simulator in which the motion sensations associated with the "G" forces are simulated by the motion of a single seat plate (62) having a pair of passive thigh ramps (78)... | 03/23/1982 |
| 4299576 | Helmet coupled acceleration simulator Method and apparatus for simulating acceleration forces on the head and helmet of a pilot of a vehicle simulator. A device for producing those forces (10) is positioned unobtrusively in the cockpit of the simulator. An apparatus (22, 80) is provided which... | 11/10/1981 |
| 4297723 | Wide angle laser display system A projected light beam video image display system. The displayed scene is presented in contiguous scene parts which form a single scene. Modulated beams for each scene part are generated and simultaneously scanned in the pattern of a TV raster for each. T... | 10/27/1981 |
| 4291380 | Resolvability test and projection size clipping for polygon face display A flight simulator combines flight data and polygon face terrain data to provide a CRT display for the windows of an aircraft trainer. The data base contains position data defining the relative position of each vertex of each polygon face, and visual data... | 09/22/1981 |
| 4290669 | Optical display apparatus The disclosure describes an enclosed area (19) between a beamsplinter (11) and a curved reflective surface (12), two end surfaces (20) and (21) and a top membrane (22). The space (19) is hermetically tight and encloses a suitable dry gas, such as nitrogen... | 09/22/1981 |
| 4290111 | Decibel addition circuit An addition circuit for adding two decibel measurements received at input terminals 12 and 14, first substracts the inputs in a subtractor circuit 16 to obtain a difference d. Then, based upon the magnitude of the difference d, the addition circuit determ... | 09/15/1981 |
| 4286319 | Expandable inter-computer communication system This disclosure describes a system for providing a communications channel between a master computer and a plurality of similar or dissimilar slave computers that may be separated by great distances. The foregoing system comprises a buffer unit and at leas... | 08/25/1981 |
| 4283177 | Vision loss simulator An apparatus and method for simulating the loss of vision in a subject, which occurs for example under sustained high "G" loading, using an optical element 12 such as a visor with variable optical characteristics ranging from opaque to transparent. An ocu... | 08/11/1981 |
| 4281994 | Aircraft simulator digital audio system A method and apparatus for providing mass storage of vocal information by means of a digital communication system for use with a training simulator is disclosed. Unlike prior art analog records and playback systems, such as tapes, etc., the inherent advan... | 08/04/1981 |
| 4280285 | Simulator complex data transmission system having self-testing capabilities In complex systems which involve a large amount of interacting electronic equipment and interconnecting cabling, the maintenance and testing required to isolate defective components or components having degraded performance become an almost continuous tas... | 07/28/1981 |
| 4279192 | Electronic compensator for a pneumatic servo controlled load bearing bellows system An electronic compensation circuit for a pneumatic load bearing bellows system closed on position, in which a servo valve provides pressure to the bellows to actuate the top of the bellows to move to a predetermined position in response to a control signa... | 07/21/1981 |
| 4276028 | Gunnery training system A gunnery training simulator system is disclosed which includes a screen, a target projector for projecting onto the screen an image of a target, a spot projector for projecting onto the screen a spot of a predetermined radiation, the trace of which repre... | 06/30/1981 |
| 4274109 | Scanned beam color video generator Technique for generating scanned video signals for a viewed scene by scanning a beam of white light across the scene to be viewed and detecting the amounts of light reflected from the scene in each three spectral regions corresponding to the primary color... | 06/16/1981 |
| 4268979 | Method and apparatus to extend the bandwidth of buffeting in flight simulators Method and apparatus for driving the motion system of a flight trainer to simulate aircraft buffeting which method and apparatus avoids the resonant frequency of the motion systems hydraulic actuators by using a "Linear Tracking Band-Stop Filter". Band-st... | 05/26/1981 |
| 4259789 | Simulation technique for generating a sudden open circuit on high current lines A simulated open circuit on high current electrical lines is generated, such that high currents, including transient currents, do not interact with and adversely effect the low current digital computer electronics which control the simulation. A bi-direct... | 04/07/1981 |
| 4241497 | P.C. Board lead trimming method A method and apparatus for trimming soldered printed circuit board component leads to a uniform finished height. The leads are pre-trimmed prior to soldering to an intermediate length long enough such that when inserted into the board the leads will posse... | 12/30/1980 |
| 4238792 | System for changing alphanumeric values that are displayed on cathode ray tube screens A system that utilizes a light pen for changing the alphanumeric value of certain information that is displayed on the screen of a cathode ray tube. Certain parameters and their alphanumeric values are displayed on the CRT screens. A row of dots or other ... | 12/09/1980 |
| 4236325 | Simulator control loading inertia compensator Signals are developed representative of the mechanical inertia of a vehicle simulator linkage elements that drive control members utilized by a student operator. These signals are combined with signals representative of programmed vehicle operating data a... | 12/02/1980 |
| 4234893 | Image drift correction apparatus An image or pictorial scene generated by a raster scan is continuously maintained in proper alignment during normal operation of a visual display system by the use of photosensitive devices mounted to the display surface outside of the field of view. In t... | 11/18/1980 |
| 4234891 | Optical illumination and distortion compensator This disclosure describes a method and apparatus for a visual display system in a vehicle simulator to compensate for distortion and to maximize illumination in a projected image substantially at the same time. Where a spherical mirror is interposed betwe... | 11/18/1980 |
| 4233755 | Vehicle simulator optical pick-up head A contour following image pick-up head for use in a vehicle training simulator camera/model board visual system. A pivotable mirror 42 is fixedly mounted beneath the camera, while an adjustable shoe 38 which is free to rotate about a pitch axis is positio... | 11/18/1980 |
| 4220927 | Electrical signal converter usable in triangular waveform generation A signal having instantaneous voltage values, defined by a peak-to-peak voltage magnitude and a D.C. offset voltage level, is converted into another signal having time corresponding waveform characteristics similar to the unconverted signal but having dif... | 09/02/1980 |
| 4208810 | Clipping polygon faces through a polyhedron of vision A flight simulator combines flight data and polygon face terrain data to provide a CRT display at each window of the simulated aircraft. The data base specifies the relative position of each vertex of each polygon face therein. Only those terrain faces cu... | 06/24/1980 |
| 4208721 | Fast-.rho. θ random access memory device This invention comprises a system that may be utilized in a simulated radar and/or sonar system to convert polar coordinate range and bearing radar and/or sonar scans into X, Y coordinate radar and/or sonar scans. Information regarding the geographic area... | 06/17/1980 |
| 4208719 | Edge smoothing for real-time simulation of a polygon face object system as viewed by a moving observer The visual system within an aircraft flight simulation system receives flight data and terrain data which is formated into a buffer memory. The image data is forwarded to an image processor which translates the image data into face vertex vectors Vf, defi... | 06/17/1980 |
| 4207687 | Simulator complex data transmission method and system In complex systems which involve a large amount of interacting electronic equipment, the amount of interconnecting cabling and the attending cross-talk, electromechanical interference and other types of noise pickup become so significant that great expens... | 06/17/1980 |
| 4206574 | Lapping block for curved surfaces Apparatus for abrading or polishing a spherical or other curved surface is disclosed. This apparatus includes a support base which is held and manipulated by an operator. A multiplicity of dowels having various lengths are permanently attached perpendicul... | 06/10/1980 |
