Patent US5035622A successfully refreshed from Google Patents.
US5035622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine gun and minor caliber weapons trainer
Assignee: United States Department of the Navy
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Filing: 1989-11-29
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Granted: 1991-07-30
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Expires: 2009-11-29
Abstract
Abstract A trainer for manually aimed weapons, having a projection screen video sym, a video disk player for providing pre-recorded scenes of a target image, a simulated weapon having actuable trigger, and a microprocessor having a file that identifies target location and range within each frame of the scenes and programmed to superimpose upon actuation of the trigger a graphic in-flight and impact image of a shot computed from a fourth order ballistics equation. Recoil of the simulated weapon is provided by pneumatics, as well as sound affects of the shot and its distant impact. Hit and miss explosions are provided in graphics selected from a set of stored image data by comparing the computed location of impact to the pre-identified target location. For shots that impact beyond the target, blanking of the graphics image is provided for that part of the explosion hidden by the target.
Inventors
- 👤 Albert H. Marshall
- 👤 Ronald S. Wolff
- 👤 Robert T. McCormack
- 👤 Edward J. Purvis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:32
CPC Classifications
F; F41; F41G; F41G3/00; F41G3/26; F41G3/2616; F41G3/2622; F41G3/2627; F41G3/2633
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
153 words
A minor caliber weapons trainer comprising: a screen for displaying target and shot images; projector means for projecting a pre-recorded target image onto the screen; shot simulator means for providing said shot image, having means for projecting shot in-flight and impact images on the screen, and a simulated minor caliber weapon having elevation sensing means for providing elevation data of said minor caliber weapon, and actuable trigger means for providing a signal to generate trajectory data upon actuation of said trigger means; and computer mean coupled to said shot simulator means and said projector means for identifying a preselected range and location within the target image, computing the trajectory data and impact location for said shot image in accordance with a ballistic equation and said elevation data in response to said signal from said trigger means, and comparing said preselected range and location with said trajectory data and impact location to identify hits.
Claim 2
Dependent Claim
153 words
A minor caliber weapons trainer comprising: a screen for displaying target and shot images; projector means for projecting a pre-recorded target image onto the screen; shot simulator means for providing said shot image, having means for projecting shot in-flight and impact images on the screen, and a simulated minor caliber weapon having elevation sensing means for providing elevation data of said minor caliber weapon, and actuable trigger means for providing a signal to generate trajectory data upon actuation of said trigger means; and computer mean coupled to said shot simulator means and said projector means for identifying a preselected range and location within the target image, computing the trajectory data and impact location for said shot image in accordance with a ballistic equation and said elevation data in response to said signal from said trigger means, and comparing said preselected range and location with said trajectory data and impact location to identify hits.
Claim 3
Dependent Claim
37 words
The trainer of claim 1 wherein said target image is video recorded data in frame format with each frame individually digitized with said preselected range and location; and wherein said shot image is a computer generated image.
Claim 4
Dependent Claim
27 words
The trainer of claim 1 wherein said impact image comprises preselected hit and miss explosion images selectable from a predetermined set of images that vary in size.
Claim 5
Dependent Claim
66 words
The trainer of claim 1 wherein said inflight and impact images are superimposed on said target image, and wherein said shot simulator means further includes means for blanking the portion of the impact image that corresponds to a predetermined target at said preselected range and location when the comparison by said computer means determines that the target image is in covering relationship to the impact image.
Claim 6
Dependent Claim
51 words
The trainer of claim 1 further comprising a sound generator having first and second channels, wherein the first channel generates a digitized gunshot sound affect and enables the second channel to generate a digitized hit sound and a digitized miss sound that are corresponding to the comparison by said computer means.
Claim 7
Dependent Claim
80 words
The trainer of claim 5 wherein said second channel includes means for providing the hit sound and miss sound in a preselected period of time after projection of said impact image and at a preselected volume, to simulate the lag in the speed of sound compared to the speed of light and the decay in volume of a sound over distance, wherein the preselected period of time and volume are selected from a set of stored delay and volume levels.
Claim 8
Dependent Claim
28 words
The trainer of claim 1 wherein said simulated minor caliber weapon further has handles and means for simulating recoil in the handles upon actuation of the trigger means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |