Weapon-mounted camera system with integrated head-mounted display

Abstract

This invention includes a weapon-mounted camera system with a low-profile front pylon that can be attached to a weapon's Picatinny rail, housing a high-resolution camera and a wireless transmitter. A helmet-mounted display system includes a rear pylon with a receiver and power supply, which is connected via cable to the front pylon containing the high-resolution display. This system allows for real-time image transmission from the weapon to the helmet-mounted display, enhancing situational awareness without obstructing existing sights. The system offers advantages over existing technologies in terms of interchangeability, durability, and non-interference with the primary optical system due to its efficient power management, modular design, and compatibility with various weapon configurations.

Description

[0001] Inventor: Maxwell Holt Cross-references to related applications This application claims priority to U.S. Provisional Patent Application No. 63 / 542,823, filed October 6, 2023, the entire contents of which are hereby incorporated by reference. Background Technology

[0002] When firing around corners, signals wirelessly emitted from a module located near the front of the weapon may encounter interference when transmitted to a helmet-mounted device. In high-pressure, high-risk combat situations, any anomalies or delays in the transmission of images, videos, or other information collected by a module located near the front of the weapon to a helmet-mounted module can be critical.

[0003] Especially in combat situations, wired systems connecting modules at or near the front of the weapon to modules on the user's helmet can become unnaturally tangled. In some situations, wires or cables extending from or near the front of the weapon to the helmet may snag or become entangled with other objects. In these cases, the cables or wires may detach from the module at the front of the weapon or the module connected to the helmet, or may otherwise impede the movement of the weapon's user.

[0004] Existing weapon-mounted camera systems, such as those described in the prior art, have several limitations, which is precisely the problem this invention aims to solve. For example, BAE Systems' Enhanced Night Vision Goggles III / FWS-I series systems, while providing integrated situational awareness and thermal imaging aiming capabilities, lack interchangeability and versatility. Such systems are designed to be compatible only with sights within their own series, thus limiting their compatibility with the various weapon configurations commonly used by soldiers. Therefore, the industry desires weapon-mounted camera systems that maintain compatibility with other components.

[0005] Furthermore, existing technology systems like the ENVG III / FWS-I often obscure the view from existing weapon sights, thus interfering with soldiers' ability to use previously installed rifle sights (such as ACOG, EOTech, or other reflex sights). Therefore, a low-profile design that can accommodate existing optical sights, rather than replace them, remains desirable.

[0006] Another significant drawback of many night vision sights is their reliance on phosphors. These components have a limited lifespan and require frequent replacement, leading to increased maintenance costs and potential breakdowns in critical situations.

[0007] The remaining challenges lie in developing a superior system for acquiring images, videos, and other information from the firearm's target area, while minimizing signal attenuation when obstructions exist along the straight-line transmission path from the front of the firearm to the user's helmet. Another unresolved challenge is developing a system that, while acquiring images, videos, and other information via cable, minimizes the risk of cable breakage or snagging that could impede the weapon user's movement. Summary of the Invention

[0008] The present invention includes a system adapted for attachment to a weapon (in a preferred embodiment, a firearm) and a helmet, the system for acquiring photographic or video images via a camera located near the front of the firearm and integrated within a front helmet-mounted receiver, for display on a helmet-mounted display housed within the front helmet-mounted receiver. In a preferred embodiment, the system further includes a rear helmet-mounted receiver comprising a battery power supply and a receiving antenna, and is connected to the front helmet-mounted receiver via a cable.

[0009] Therefore, the basic objective of this invention is to acquire images or videos by means of a camera integrated in a front-mounted external attachment box and display them on a display mounted on a front-mounted helmet attachment box, which is installed on the helmet of a person carrying a weapon equipped with the system.

[0010] Another fundamental objective is to provide an accessory for transmitting images via wired or wireless connections, allowing for minimal latency or signal interruption during combat situations or other situations where objects may interfere with signals originating from the front external attachment box and then transmitted to the front helmet attachment box.

[0011] Another fundamental purpose is to mount cameras on weapons and capture images from telescopic sights without interfering with the use of the firearm or the accuracy of the sights.

[0012] Another fundamental objective is to enable cameras mounted on weapons to communicate with displays to present images and videos to the weapon's owner without interfering with the use of the firearm or the accuracy of the scope.

[0013] A related object of the present invention is to provide a quick-connect and quick-disconnect camera accessory for weapons, capable of acquiring camera images without interfering with the accessibility or visibility of aiming mechanisms unrelated to the camera. Another related object of the present invention is to enable the capture of photographs and videos via the attached camera without obstructing or interfering with the normal field of vision of the person holding the weapon. Attached Figure Description

[0014] Figure 1An embodiment of attaching to the front external mounting box of a weapon via a Picatinny rail system is depicted.

[0015] Figure 2a A perspective view showing one embodiment of a front-mounted helmet attachment box is provided.

[0016] Figure 2b An embodiment of a front-mounted helmet attachment box attached to a helmet is shown.

[0017] Figure 2c Another perspective view of one embodiment of the front-mounted helmet attachment box is presented.

[0018] Figure 2d An embodiment of a front helmet attachment box attached to a helmet is shown, in which a display is visible.

[0019] Figure 3 A bottom-view perspective view depicts one embodiment of a front-mounted helmet attachment box.

[0020] Figure 4 An embodiment of attaching a rear-mounted helmet clip and a front-mounted helmet clip to a helmet is shown.

[0021] Figure 5 An embodiment of a rear-mounted helmet attachment box is shown.

[0022] Figure 6 A detailed view of one embodiment of the display is depicted.

[0023] Figure 7 An exploded view of one embodiment of the front external mounting box is shown, highlighting its attachment to the Picatinny rail system.

[0024] Figure 8 An embodiment of a Picatinny rail system for attaching a front external mounting box to a weapon is shown.

[0025] Figure 9 A perspective view depicting one embodiment of the front external mounting box is shown.

[0026] Figure 10 Another perspective view of one embodiment of the front external storage box is shown, highlighting the various components of that embodiment. Detailed Implementation

[0027] A preferred embodiment of the invention includes a design featuring a low-profile front external mount 100 housing a camera 260, thereby providing a universal, unobstructed solution for easy integration with existing weapon configurations. This approach allows soldiers to retain their preferred optical sights while enjoying the added benefits of a weapon-mounted camera system, thereby enhancing situational awareness and combat effectiveness without compromising the functionality of their primary aiming devices.

[0028] A preferred embodiment of the present invention includes a front external mounting box 100. For example... Figure 1 As shown, the front external attachment box 100 is attached to the front of the firearm 400 according to a predetermined usage method. In one embodiment, the front external attachment box 100 further includes a device for attaching to the front of a Picatinny rail system 410, the Picatinny rail system being located closest to the barrel of the firearm 400. Figure 7 and Figure 8 As shown, in a preferred embodiment, the front external attachment 100 includes a Picatinny rail attachment, allowing the front external attachment 100 to be secured to the firearm 400 via a Picatinny rail system 410. In various embodiments, the front external attachment 100 can be attachably connected to the front of the firearm 400 via any mechanism that allows the camera 260 to be aligned with a trajectory indicated by the firearm 400. The inventors have recognized that the Picatinny rail system 410 allows the attachment to be aligned to various points in the range direction of the firearm 400. One aspect of the invention is to provide alignment of the orientation of the camera 260 with the target area direction of the weapon, such that, in one embodiment, a view of the weapon's range direction can be presented on the display 320 in association with accurate reticle lines. In one embodiment, the front external attachment 100 further includes buttons or dials to allow calibration of zoom, alignment, aiming, camera 260 position, or other user-controllable elements, which may optionally be associated with an interface presented on the display 320. In a preferred embodiment, the front external mounting box 100 is detachably mounted to the front of the firearm 400.

[0029] In one embodiment, the front external mounting bracket 100 is configured to be quickly and easily attached to the firearm 400 without modifying or damaging the existing firearm 400. While the mounting bracket 370 of the front external mounting bracket 100 provides acceptable alignment for the accompanying camera 260 during photography or videography, in this embodiment, mechanisms known in the art can also be used to achieve more accurate alignment associated with reticle training. According to the embodiment, the front external mounting bracket 100 has a robust construction, necessary for military applications, and allows for quick and easy attachment and detachment.

[0030] In a preferred embodiment, the front external mounting magazine 100 includes a camera 260. In various embodiments, a directional path extending directly from the farthest point of the lens of the camera 260 is oriented along the firearm 400, such that the line of sight is parallel to the firing trajectory of the firearm 400. After the front external mounting magazine 100 is mounted on the firearm 400 according to a predetermined method of use, the camera 260 can capture images along the firing trajectory of the firearm 400. In various embodiments, the front external mounting magazine 100 is located on the top, either side, or the bottom of the firearm 400, with the camera 260 pointing forward.

[0031] According to a preferred embodiment, the camera 260, housed within a front external mounting box, employs a high-resolution sensor with a resolution of at least 1000 lines. This high resolution is crucial for acquiring clear and detailed images in various combat scenarios. The specific camera model selected according to the preferred embodiment (Readytosky Mini 1000TVL FPV camera) meets and exceeds this requirement with its 1000 TV line resolution capability.

[0032] In terms of field of view, the camera 260 is designed to provide a wide angle of at least 90 degrees. This wide field of view is crucial for acquiring a broad area in front of the weapon, thereby enhancing the user's situational awareness. The selected camera model goes beyond this requirement, providing a 110-degree field of view and even wider coverage. This extended field of view allows the user to observe a larger portion of their surroundings without significantly adjusting the weapon's position.

[0033] For the display 320 integrated into the helmet-mounted mount 300, the resolution specification is set to meet or exceed the PAL video resolution. The PAL (Progressive Line Image) standard is typically 720 × 576 pixels. The display selected for this solution is a 0.39-inch viewfinder display module with a resolution of 1024 × 768 pixels, significantly higher than this standard. The high-resolution display ensures that the user can view a clear and detailed image transmitted from the camera 260, even when the display 320 is placed close to the eyes (less than 2 inches away) as required by design.

[0034] The combination of high camera resolution and a wide field of view, along with a high-resolution display, enables the system to provide users with detailed and rich visual information. This is particularly important for the intended use of this invention, as users need to quickly and accurately assess their surroundings in highly stressful combat situations. High-resolution imagery allows for better identification of potential threats or suspicious targets, while the wide field of view provides enhanced situational awareness.

[0035] Furthermore, according to a preferred embodiment, these parameters work in conjunction with other components of the system (such as wireless transmission settings) to ensure that high-quality video streams from camera 260 are effectively transmitted and displayed on display 320 with minimal latency or signal attenuation. This enables users to receive real-time, high-quality visual information, which is crucial for making rapid decisions in combat scenarios.

[0036] In one embodiment of the invention, the front external mounting bracket 100 further includes a rangefinding laser. The rangefinding laser can take any structural form and is capable of collecting distance information from the firearm 400 to an object or location in the direction of the target area and transmitting this distance information to the display 320 for display. The mounting orientation of the rangefinding laser within the front external mounting bracket 100 is consistent with the aiming direction of the muzzle along the target area.

[0037] In an exemplary embodiment, the camera 260 in the front external mount 100 is a Readytosky Mini 1000TVL FPV camera. This camera is configured with a 1 / 3 CCD sensor and a 2.8 mm lens, providing a 110-degree field of view. The camera's operating voltage range is 5 V to 20 V, making it compatible with the power supply system in this embodiment. Its high resolution of 1000 TV lines ensures clear and detailed image acquisition, which is crucial for the system to provide accurate visual information to the user.

[0038] In another embodiment of the invention, the front external mount 100 further includes a second camera in the form of a thermal imaging camera. In such an embodiment, the thermal imaging camera is integrated alongside the existing camera 260 to provide enhanced imaging capabilities under various environmental conditions.

[0039] In one exemplary embodiment, the thermal imaging camera module used is based on the HM-TM5X-XRG / C series, which supports UART serial communication and CVBS video communication protocols. This thermal imaging camera is capable of acquiring high-resolution thermal images with a resolution of at least 1000 lines and a field of view of at least 90 degrees.

[0040] The thermal imaging camera module can be configured to communicate with the existing system of the front helmet-mounted external attachment 100 via a UART serial interface. This allows for seamless integration with the current image processing and transmission capabilities of embodiments of the invention. Thermal images acquired by the thermal imaging camera can be wirelessly transmitted to the rear helmet-mounted external attachment 200 using an existing AKK X2-Ultimate 5.8 GHz transmitter. In one embodiment, the thermal imaging camera module supports various adjustable parameters that can be controlled via serial commands, including brightness, contrast, digital enhancement of image detail, and color palette settings. These features allow for optimization of thermal imaging in various combat scenarios for the intended use according to embodiments of the invention.

[0041] In one embodiment, the integration of a thermal imaging camera module enhances the system's capabilities by providing thermal imaging alongside standard visual imaging. The dual-camera setup in the front mount 100 allows the user to switch between or overlay visual and thermal views using a dial located in the front helmet mount, significantly improving situational awareness in low-light conditions or in scenarios where detecting thermal signals is critical.

[0042] In this embodiment, the output of the thermal imaging camera is displayed on an existing display 320 located within the front-mounted helmet mount 300, using the same power and signal transmission system as the camera 260. This ensures that, in embodiments including a thermal imaging camera, the addition of thermal imaging capability does not significantly alter the overall design and usability of the system.

[0043] A preferred embodiment of the invention includes a specially configured helmet attachment box, which is divided into two main components: a rear helmet attachment box 200 and a front helmet attachment box 300. This design ensures optimal functionality and user comfort while maintaining the system's effectiveness in combat situations. According to various embodiments, the helmet attachment box is attached to or held to the corresponding part of the helmet in various ways readily understood by those skilled in the art.

[0044] The rear helmet mount 200 is designed at the rear of the helmet 500, providing an ideal location for signal reception and power management. The rear helmet mount houses several key components, including a receiver 250, optionally an AKK RC832 receiver, specifically designed to work in conjunction with the AKK X2-Ultimate transmitter in the front helmet mount 100. The rear helmet mount also houses a battery compartment 270, optionally including a battery pack using CR123 disposable batteries, serving as the main power source for both the receiver 250 and the display 320 in the front helmet mount 300. Additionally, the rear helmet mount includes a DC-DC boost converter that boosts the battery voltage (ranging from 4V to 6V) to 12V, necessary to power the receiver 250 and other components.

[0045] In one embodiment, the front helmet mount 300 is positioned where the display 320 is easily accessible to the user. The front helmet mount includes the display 320, which is a 0.39-inch viewfinder display module with a high resolution of 1024 × 768 pixels. The front helmet mount also has a dedicated video / power port designed to interface with a corresponding port on the rear helmet mount.

[0046] The connection between the rear-mounted helmet mount and the front-mounted helmet mount 300 is achieved via a dedicated cable that efficiently transmits power and video signals. This cable intersects with the video / power ports on both mounts, ensuring a simple and reliable connection. The cable delivers regulated power from the battery compartment 270 (which includes a battery pack and optionally further includes a battery cover 280) in the rear-mounted helmet mount 200, which is converted to a suitable voltage level (3.5 V to 5 V) for the display 320 in the front-mounted helmet mount 300. The cable also transmits video signals received by the AKK RC832 receiver 250 in the rear-mounted helmet mount to the display 320.

[0047] The cable connecting these two external compartments can utilize a variety of suitable options designed for combined power and video signal transmission. Examples include shielded multi-core cables like the Belden 1855A, which combine RG59 coaxial cable for video transmission with an additional 18 AWG conductor for power delivery. Another option is hybrid fiber optic cables, such as the Canare FCFA series, which include fiber optics for high-quality video transmission and copper conductors for power delivery. For a more compact solution, micro-coaxial cables like the Samtec UMCX series can be used, offering high-frequency signal transmission capabilities in a small form factor while integrating the power conductor.

[0048] The configuration of the helmet-mounted external attachment 300, with its separate rear and front components connected by a dedicated cable, offers several advantages. This configuration allows for optimal weight distribution on the helmet, enhancing user comfort during extended combat operations. It also provides a clear separation between power management and display functions, contributing to improved system reliability. Using a single cable for both power and video signal transmission reduces potential points of failure and simplifies the overall system design.

[0049] By integrating these design elements, the helmet-mounted attachment box configuration ensures efficient power management, reliable signal transmission, and optimal display positioning—all factors crucial for the system's effectiveness in highly stressful combat situations.

[0050] A preferred embodiment of the present invention employs a wireless transmission system to transmit video signals from the front external attachment 100 to the rear helmet attachment. In one embodiment, the front external attachment 100 includes an AKK X2-Ultimate 5.8GHz transmitter, which is responsible for transmitting the video stream captured by the camera 260.

[0051] In one embodiment, the transmitter operates at 5.8 GHz, striking a balance between transmission range and obstacle penetration capability. The transmitter features switchable power output levels ranging from 0.01 mW to 1000 mW, allowing for adjustments to transmission range and power consumption based on operational requirements. This flexibility is crucial for maintaining stable video links in various combat scenarios.

[0052] In one embodiment, the signal transmitted from the front external attachment 100 is received by a receiver 250, optionally an AKK RC832 receiver, housed in a rear helmet attachment cassette. This receiver 250 is specifically designed to work in conjunction with the AKK X2-Ultimate transmitter to ensure compatibility and optimal performance.

[0053] The rear helmet mount is positioned at the rear of the helmet, providing an ideal location for signal reception while maintaining a balanced distribution of the user's head weight. According to a preferred embodiment, the front helmet mount 300 and the rear helmet mount 200 are wired together via a cable. This wired connection ensures that the received video signal is transmitted stably and without interference from the receiver 250 to the display 320 located in the front helmet mount 300.

[0054] The display 320, housed within the front-mounted helmet-mounted external mount 300, is a 0.39-inch viewfinder display module with a high resolution of 1024 × 768 pixels. This compact display is positioned so that the user can view a clear view of the video stream transmitted from the camera 260. The display's position seamlessly integrates with the user's field of view, allowing the user to maintain situational awareness while accessing the camera feed.

[0055] To enhance wireless communication capabilities, the system includes a Readytosky Mini 5.8G FPV antenna with 2.8 dBi gain and RHCP (right-hand circular polarization) configuration. This antenna design provides a good balance between signal strength and physical durability, which is crucial for maintaining stable connectivity in harsh operational environments.

[0056] Therefore, a preferred embodiment of the present invention includes a wireless transmission system 240 to facilitate the transmission of video signals from the front external attachment 100 to the rear helmet attachment 200. Specifically, the front external attachment 100 houses an AKK X2-Ultimate 5.8GHz transmitter, which is responsible for transmitting the video stream captured by the camera 260.

[0057] The transmitter operates in the 5.8 GHz frequency band, achieving a good balance between transmission range and obstacle penetration capability. It features switchable power output levels ranging from 0.01 mW to 1000 mW, allowing for adjustments to transmission range and power consumption based on operational needs. This flexibility is crucial for maintaining stable video links in various combat scenarios.

[0058] Signals transmitted from the front mount 100 are received by an AKK RC832 receiver 250, which is housed within the rear helmet mount 200. The receiver 250 is specifically designed to work in conjunction with the AKK X2-Ultimate transmitter, ensuring compatibility and optimal performance. The AKK RC832 receiver 250 operates at 12V and is powered by a DC-DC boost converter in the helmet mount 300.

[0059] To enhance wireless communication capabilities, the system includes a Readytosky Mini 5.8G FPV antenna with 2.8 dBi gain and RHCP (right-hand circular polarization) configuration. This antenna design achieves a good balance between signal strength and physical durability, which is crucial for maintaining stable connectivity in harsh operational environments.

[0060] The wireless transmission system is designed to work in conjunction with other components of the system, such as the high-resolution camera 260 and the display 320, to ensure that high-quality video streams are transmitted and displayed efficiently with minimal latency or signal attenuation. This enables users to receive real-time, high-quality visual information, which is crucial for making rapid decisions in combat scenarios.

[0061] In one exemplary embodiment, an AKK RC832 receiver 250 is used in the rear helmet mount 300 to acquire transmitted video signals. This receiver 250 is designed to work in conjunction with the AKK X2-Ultimate transmitter to ensure compatibility and optimal performance. In one embodiment, the receiver 250 operates at 12 V and is powered by a DC-DC boost converter of the helmet mount 300.

[0062] A preferred embodiment of the invention includes a wired connection system between the front helmet mount 300 and the rear helmet mount 200, thereby ensuring reliable power and signal transmission. The front helmet mount 300 also has a dedicated video / power port designed to interface with a corresponding port on the rear helmet mount 200. This connection allows both video signals and power to be transmitted via a single cable, simplifying system design and reducing potential points of failure.

[0063] The cable connecting the rear helmet mount 200 to the front helmet mount 300 is designed to efficiently transmit power and video signals through a single, simple connection. This dedicated cable interfaces with the video / power port on the rear helmet mount 200 and the corresponding port on the front helmet mount 300. The cable delivers regulated power from the battery pack in the rear helmet mount 200, which has been converted to a suitable voltage level (3.5 V to 5 V) for the display 320 in the front helmet mount 300. Simultaneously, the cable also transmits the video signal received by the AKK RC832 receiver 250 in the rear helmet mount 200 to the display 320. The cable connecting the rear helmet mount 200 to the front helmet mount 300 can be implemented using a variety of suitable options for combined power and video signal transmission. One example is a shielded multi-core cable that includes power lines and coaxial video lines within a single sheath. In an exemplary embodiment, a particular cable comprises Belden 1855A, which combines RG59 coaxial cable for video transmission with an additional 18 AWG conductor for power delivery. In another alternative embodiment, the cable comprises a hybrid fiber optic cable, combining optical fiber for high-quality video transmission with copper conductors for power delivery, such as the Canare FCFA series. In yet another alternative embodiment, a micro coaxial cable, such as the Samtec UMCX series, can be used, providing high-frequency signal transmission capabilities in a compact form factor while integrating power conductors.

[0064] In one embodiment, the rear-mounted helmet attachment 200, located at the rear of the helmet, includes a battery pack that serves as the main power source for the receiver 250 housed within the rear-mounted attachment 200 and the display 320 located in the front-mounted helmet attachment 300. The battery pack uses CR123 disposable batteries and provides a voltage range of 4 V to 6 V. The power management system within the rear-mounted helmet attachment 200 employs a DC-DC converter to efficiently distribute appropriate voltages to the various components.

[0065] A preferred embodiment of the invention employs a power supply system specifically designed for weapon-mounted camera systems to meet their specific requirements. The system uses CR123 disposable batteries as the main power source for the front external mounting cassette 100 and the rear helmet-mounted external mounting cassette 200. These batteries were chosen for their compact size and high energy density, making them ideally suited to the portable nature of the camera system.

[0066] In the context of the preferred embodiment, both the front attachment box 100 and the rear helmet attachment box 200 are powered by two CR123 batteries connected in series. This configuration provides an input voltage range of 4 V to 6 V, which is crucial for powering the various components within each attachment box. The system is designed to operate effectively across this voltage range, ensuring consistent performance as the batteries discharge over time.

[0067] To manage the power requirements of different components, the system employs DC-DC converters, specifically boost converters and buck converters. In the front external mounting box 100, which houses the camera 260 and other components, a boost converter is used to increase the battery voltage to 8V. This higher voltage is necessary to effectively power the camera and wireless transmitter.

[0068] The rear-mounted helmet mount 200 includes a display 320 and associated electronics, which are supplied with 12V voltage by a boost converter. Additionally, a buck converter is provided to reduce the voltage to 5V, which is necessary to power specific components such as the wireless receiver 250 integrated within the rear-mounted helmet mount 200.

[0069] Using such DC-DC converters offers several advantages to the system. First, these converters efficiently utilize battery power, thereby extending the operating time of the front attachment 100 and the rear helmet attachment 200. Second, these converters provide voltage regulation, ensuring that each component receives its optimal operating voltage regardless of the battery's state of charge. This is particularly important for sensitive electronic devices such as the camera 260 and the display 320, which require stable power to maintain consistent performance.

[0070] The power management system also takes into account the operating temperature range of 0°C to 50°C to ensure that the DC-DC converter can operate effectively under these environmental conditions. This invention is crucial for effectively and reliably maintaining the system in various combat or high-stress situations.

[0071] Based on the typical capacity of the CR123 battery and the expected power consumption of each component in the system, assuming a current consumption of 200 mA, the estimated battery life of the front helmet mount 100 is approximately 7.5 hours. For the rear helmet mount 200 (and the front helmet mount 300 connected to its cable), assuming a current consumption of 330 mA, the estimated operating time is approximately 4.5 hours.

[0072] This power supply design is crucial to ensuring the system's proper operation and durability in field conditions. Even in challenging operational environments, this power supply is designed to support the core functions of real-time image acquisition from camera 260 and transmission of images to display 320.

[0073] In one embodiment, the AKK RC832 receiver 250 in the rear helmet mount 200 operates at 12V; in another embodiment, this operating voltage is obtained by a boost converter within the rear helmet mount 200 that raises the battery voltage to the required level. Similarly, power is transmitted via a connecting cable to the front helmet mount 300, where it is regulated to provide the 3.5V to 5V voltage required by the 0.39-inch viewfinder display module (display 320).

[0074] This integrated power and signal transmission system ensures that the display 320 in the front-mounted helmet-mounted attachment 300 receives the necessary power and video stream from the receiver 250 via a single, simple link. This design not only enhances the system's reliability but also makes it compact and user-friendly, facilitating its application in highly stressful combat situations.

[0075] In one embodiment, the display 320 in the front helmet mount 300 includes a 0.39-inch viewfinder display module specifically designed for AR glasses, thermal imaging, and night vision applications. The display offers a high resolution of 1024 × 768 pixels, exceeding the resolution requirements of PAL video. The display operates at a voltage range of 3.5 V to 5 V, supplied by a buck converter located in either the rear helmet mount 200 or the front helmet mount 300. The display is compact enough to be integrated into a helmet-mounted system without obstructing the user's normal field of vision.

[0076] To enhance wireless communication capabilities, in one embodiment, the system includes a Readytosky Mini 5.8GFPV antenna with 2.8 dBi gain and an RHCP (right-hand circular polarization) configuration. This antenna design provides a good balance between signal strength and physical durability, which is crucial for maintaining stable connectivity in harsh operational environments.

[0077] The selection of these specific components ensures that the invention meets the requirements for image quality, wireless transmission, power efficiency, and compact design in the embodiments. Camera 260 provides high-resolution images, the wireless transmission system supports real-time video streaming, and display 320 presents a clear image to the user—all within the compact and robust design of the front external attachment cassette 100, the rear helmet attachment cassette 200, and the front helmet attachment cassette 300. This combination of components enables the system to operate effectively in various combat scenarios, providing the user with enhanced situational awareness and the ability to observe corners or obstacles without exposing themselves to potential threats.

[0078] A preferred embodiment includes a rear helmet attachment 200 as described herein. In a preferred embodiment of the invention, the rear helmet attachment 200 includes a communication module for transmitting images or videos captured by the camera 260 of the front attachment 100 to the display 320 of the front helmet attachment 300. The inventors have recognized that, when assembled as described herein, positioning the rear helmet attachment 200 at the rear of the helmet allows for uninterrupted transmission of wireless or latency-free signals from various parts of the front attachment to various parts of the rear helmet attachment 200.

[0079] A preferred embodiment of the invention includes using a CR123 disposable battery as a power source for either or both of the front external attachment cassette 100 and the rear helmet attachment cassette. These batteries were chosen for their compact size and high energy density, making them well-suited for the portability requirements of camera systems. The CR123 batteries used in this system have a nominal voltage of 3.0 volts and a typical capacity of 1500 mAh when discharged to 2.0 volts. These batteries can operate effectively over a temperature range of -40°C to 60°C, consistent with the 0°C to 50°C operating range assumed in the proof-of-concept prototype.

[0080] In the preferred embodiment, both the front helmet mount 100 and the rear helmet mount 200 use two CR123 batteries connected in series. In this embodiment, the rear helmet mount is connected to the front helmet mount 300 via wires and supplies power to it. This configuration provides an input voltage range of 4 V to 6 V, which is crucial for powering each component within each mount. The system is designed to operate effectively across this voltage range, ensuring consistent performance even as the batteries discharge over time.

[0081] In one embodiment, a boost converter is provided in the front-mounted external attachment cassette 100, which includes the camera 260 and other components, to boost the battery voltage to 8V. This boosted voltage is necessary to effectively power the camera and wireless transmitter. The front-mounted helmet attachment cassette 300, which houses the display 320 and associated electronics, utilizes a boost converter to provide its components with 12V. In one embodiment, this voltage management ensures that all components of the system receive the appropriate power level for optimal operation.

[0082] Using a CR123 battery in this configuration, assuming a current consumption of 200 mA, the estimated battery life for the front helmet mount 100 is approximately 7.5 hours. For the rear helmet mount 200 and the wire-connected front helmet mount 300, the estimated runtime is approximately 4.5 hours based on an assumed current consumption of 330 mA. These runtimes in the embodiments are estimated based on the typical capacity of the CR123 battery and the expected power consumption of the camera 260 and wireless transmitter in the front helmet mount 100, the display 320 in the front helmet mount 300, and the wireless receiver 250 in the rear helmet mount 200.

[0083] Furthermore, the power management system of this preferred embodiment includes a boost converter designed to work in conjunction with other critical components of the system. In one exemplary embodiment, the power management system provides stable power to the camera 260 in the front mount 100 for consistent image acquisition, and also powers the wireless transmitter for real-time video transmission. In one embodiment, the power system in the front helmet mount 300 powers both the display 320, enabling clear viewing of the transmitted image at a distance of less than 2 inches from the user's eyes, and the wireless receiver 250 for uninterrupted signal reception.

[0084] This power solution embodiment uses a CR123 battery, integrated into the overall design of the weapon-mounted camera system, enabling the system to support the core functions of real-time image acquisition from camera 260 and transmission of images to display 320, even in challenging combat environments.

[0085] In one embodiment of the invention, the power management system integrates a DC-DC boost converter and a buck converter to efficiently regulate the voltage requirements of various components within the front external attachment box 100, the rear helmet attachment box 200, and the front helmet attachment box 300. In one embodiment, this power supply design is crucial for ensuring the system's normal operation and durability under field conditions.

[0086] In one embodiment, the front external mount 100 employs a DC-DC boost converter to boost the voltage (4 V to 6 V range) of the two CR123 batteries connected in series to a stable 8 V output. This higher voltage ensures a stable power supply for the camera 260 and the wireless transmitter. The boost converter ensures that these components receive a stable power supply even as the battery voltage decays over time, thereby maintaining stable performance throughout the operation.

[0087] In one embodiment, the rear helmet mount 200 and the front helmet mount 300 are equipped with similar DC-DC boost converters to increase the battery voltage to 12V. This higher voltage is necessary to effectively power the display 320 and other associated electronics within the helmet-mounted unit. Alternatively, in one embodiment, a buck converter is provided in either the front or rear helmet mount 200 to reduce the 12V to 5V, which is necessary to power specific components such as the wireless receiver 250 of the rear helmet mount 200.

[0088] According to one embodiment of the invention, the use of these DC-DC converters provides several advantages to the system. First, these converters efficiently utilize battery power, thereby extending the operating time of the components of the front external attachment 100 and the front helmet attachment 300. Second, these converters provide voltage regulation, ensuring that each component is fitted with an optimal operating voltage regardless of the battery's state of charge. This is particularly important for sensitive electronic devices such as the camera 260 and the display 320, as they require a stable power supply to maintain consistent performance.

[0089] Furthermore, in one embodiment, the power supply design can be adapted to the varying power consumption requirements of different components. For example, the 25 mW wireless transmitter in the front external attachment 100 requires a specific voltage to achieve optimal transmission power and range. A boost converter ensures that this voltage is provided stably, enabling reliable wireless communication between all aspects of the front external attachment 100 and the rear helmet attachment 200.

[0090] In one embodiment of the invention, the power supply system also takes into account an operating temperature range of 0°C to 50°C to ensure the DC-DC converter operates effectively under these environmental conditions. This embodiment of the invention is crucial for effectively and reliably maintaining the system in various combat or high-stress situations. Preferred embodiments of the invention are designed to achieve a balance between power efficiency, component performance, and system reliability. In a preferred embodiment, the use of DC-DC boost and buck converters optimizes the utilization of the CR123 battery, thereby ensuring that all components of the weapon-mounted camera system receive appropriate power levels suitable for sustained field operations.

[0091] Various embodiments of the present invention include a front helmet mount 300 as described herein. In a preferred embodiment, the front helmet mount 300 includes a display 320. The front helmet mount 300 is attached to a helmet 500 such that the wearer can position the display 320 in front of their eyes for viewing. In various embodiments, the display 320 is configured to display images and / or video captured from a camera 260. The display 320 cooperates with other aspects of preferred embodiments of the system to display images and / or video captured by the camera 260 in real time. In one embodiment, the display 320 is further configured to display data obtained by a rangefinding laser. In various embodiments, both the front helmet mount 300 and the rear helmet mount 200 include a helmet attachment device 340. In various embodiments, the front helmet mount 300 is adjustable about a swivel joint 360. In various embodiments, the display 320 is configured to display reticle lines. In one embodiment, the display 320 is configured to display adaptive reticle lines. The inventors have realized that, through known systems in the art, the division lines and related aspects can be presented in an adjustable manner, such as those described in the following documents: U.S. Patent Application 11 / 732,573, published May 17, 2012; U.S. Patent Application 13 / 135,158, published June 26, 2012; and U.S. Patent 9,310,163, granted April 12, 2016, each of which is incorporated herein by reference in its entirety.

[0092] In a preferred embodiment, such as Figure 2a , Figure 2b and Figure 4 As shown in b, the helmet attachment device 340 consists of a dovetail mount and fastening screws attached to the outside of the front helmet mount 300. The inventors envision employing image processing circuitry connected to the display 320 and the camera 260. In various embodiments, the camera 260 is capable of multi-level zoom and reduces shake during image acquisition, particularly when shooting at long distances. Embodiments of the invention may include mechanisms for minimizing shake and other related aspects, such as those described in U.S. Patent 9,036,035, published May 19, 2015, the entire contents of which are incorporated herein by reference.

[0093] In various embodiments, the front-mounted helmet attachment 300 includes one or more adjustment dials 290. In various embodiments, the adjustment dials 290 are configured to change the zoom level displayed on the display 320. In various embodiments, the adjustment dials 290 can trigger a switching of information displayed on the display 320. In one embodiment, the adjustment dials 290 can change the brightness of the display 320. In various embodiments, the adjustment dials 290 can be rotated or pressed to trigger different commands or change the items displayed on the display 320.

[0094] One embodiment of the present invention includes a method for acquiring and displaying images from a weapon-mounted camera system. The method first acquires images along the weapon's firing trajectory using a camera 260 mounted in a front external mounting cassette 100 on the front side of the weapon. The camera 260, with its high resolution of at least 1000 lines and a wide field of view of at least 90 degrees, ensures clear and detailed images can be acquired in various combat scenarios.

[0095] After acquiring these images, the front external mount 100 uses an AKK X2-Ultimate 5.8 GHz transmitter to wirelessly transmit them. This transmitter operates in the 5.8 GHz frequency band and has an adjustable power output level ranging from 0.01 mW to 1000 mW, enabling flexible operation in different combat scenarios while maintaining a stable video link.

[0096] The transmitted image is then received by an AKK RC832 receiver 250 located in a rear-mounted helmet mount 200 attached to the rear of the helmet. This receiver 250 is specifically designed to work in conjunction with the AKK X2-Ultimate transmitter to ensure optimal performance and compatibility.

[0097] After reception, the image and power are transmitted via a dedicated cable from the rear helmet mount 200 to the front helmet mount 300, which is attached to the front of the helmet. This cable efficiently transmits power and video signals and interfaces with the video / power ports on both mounts, ensuring a simple and reliable connection.

[0098] Finally, the image is displayed on the monitor 320 in the front-mounted helmet-mounted external mount 300. This monitor is a 0.39-inch viewfinder display module with a high resolution of 1024 × 768 pixels, exceeding the PAL video resolution requirements, allowing the transmitted image to be clearly viewed at a distance of less than 2 inches from the user's eyes.

[0099] The method also employs power management technology to ensure efficient system operation. In the front external attachment 100, a DC-DC boost converter stably increases the voltage from the two series-connected CR123 batteries, which ranges from 4V to 6V, to an 8V output. This higher voltage is necessary to effectively power the camera 260 and the wireless transmitter. Similarly, in the rear helmet attachment 200, another DC-DC boost converter increases the battery voltage to 12V to power the receiver 250 and other components.

[0100] The wireless signal transmission and reception operate in the 5.8 GHz band, and the transmitter's power output level is adjustable, enabling optimal performance in various combat environments. This flexibility is crucial for maintaining a stable video link in different combat scenarios.

[0101] Importantly, this method involves mounting the front external pylon 100 to the weapon in a manner that does not obstruct the field of view of existing optical sights. The pylon features a low-profile design, approximately 2 inches long, 1.5 inches wide, and 0.75 inches high, allowing for seamless mounting below most standard ACOG or reflex sights. The top surface of the front external pylon 100 conforms to the profile of the Picatinny rail, with its highest point no more than 0.5 inches from the rail surface. This design ensures that the soldier's line of sight through the primary optical sight remains unobstructed, while still gaining the capabilities extended by weapon-mounted camera systems.

[0102] Compared to existing systems, embodiments of the present invention offer superior interchangeability and versatility. Existing systems are designed to work only with other sights of the same family, limiting compatibility with various weapon configurations. The inventors have recognized that this preferred embodiment, with its low-profile front external mounting bracket 100, can be easily adapted to existing weapon configurations. This design allows soldiers to retain their preferred optical sights while enjoying the added benefits of weapon-mounted camera systems, thereby enhancing situational awareness and combat effectiveness without compromising the functionality of their primary aiming devices.

[0103] A preferred embodiment of the front external mounting bracket 100 is designed with specific dimensions and features to ensure compatibility with existing optical sights while maintaining a low profile. The bracket is approximately 2 inches long, 1.5 inches wide, and 0.75 inches high, allowing it to be mounted below the aiming line of most standard ACOG or reflex sights without obstructing their field of view. The low-profile design of this invention is another significant advantage. Existing systems often obstruct the view of the weapon's original scope, thus affecting the proper use of previously installed firearms sights such as ACOG, EOTech, or other reflex sights. In contrast, the front external mounting bracket 100 of this invention is designed to be unobstructed and can complement, rather than replace, existing optical systems. This approach preserves the functionality of the weapon's primary sight while also incorporating the advantages of a camera system.

[0104] In one embodiment, the top surface of the front external mounting bracket 100 conforms to the contour curve of the Picatinny rail, with its highest point no more than 0.5 inches from the rail surface. This low-profile design ensures that the soldier's line of sight through the primary optical sight is unobstructed. In this embodiment, the camera 260 is positioned at the front of the external mounting bracket, tilted slightly downwards at an angle of approximately 5 degrees to compensate for the height difference and maintain alignment with the weapon's bore. The Picatinny rail attachment mechanism is designed to be quick-release, allowing for easy tool-free installation and removal, further enhancing the system's versatility and compatibility with various weapon configurations.

[0105] Furthermore, the preferred embodiment offers superior durability compared to systems using phosphors. Many night vision sights rely on phosphors, which have a limited lifespan and require frequent replacement, leading to increased maintenance costs and potential breakdowns in critical situations. The preferred embodiment avoids these limitations by utilizing modern electronics and a robust design. According to the preferred embodiment, the use of a phosphor-free, high-resolution digital camera and display, combined with a durable power management system, ensures a longer operational lifespan and reduced maintenance requirements.

[0106] The wireless transmission system employed in the preferred embodiment is also one of its advantages over existing technologies. By using a 5.8 GHz wireless transmission system with adjustable power output levels, the invention can operate flexibly in various combat scenarios while maintaining a stable video link. This wireless capability, combined with the strategic placement of components on weapons and helmets, minimizes the risk of signal interference or disconnection during use.

[0107] Furthermore, compared to a more integrated system, the preferred embodiment employs a modular design with independent front external attachment 100 and helmet external attachment 300, offering greater flexibility and ease of use. This modularity makes maintenance, upgrades, and customization easier to adapt to different operational requirements.

[0108] In summary, the preferred embodiment addresses key limitations of existing systems by providing enhanced interchangeability, a low-profile design, improved durability, advanced wireless capabilities, and a modular structure. These features collectively provide a more versatile, reliable, and user-friendly weapon-mounted camera system for modern combat scenarios.

[0109] While preferred embodiments of the invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. The invention is not limited to the specific examples provided herein. Although the invention has been described with reference to the foregoing description, the description and illustration of embodiments herein are not intended to be restrictive. Many variations, alterations, and substitutions can be made by those skilled in the art without departing from the scope of the invention. Furthermore, it should be understood that all aspects of the invention are not limited to the specific depictions, configurations, or relative proportions set forth herein, as these depend on a variety of conditions and variables. It should be understood that various alternatives to the embodiments of the invention described herein can be employed to practice the invention. Therefore, it is contemplated that the invention will also cover any such alternatives, modifications, variations, or equivalents. The scope of the invention is defined by the appended claims, and methods and structures within the scope of these claims and their equivalents are included.

Claims

1. A system for acquiring and displaying images from a weapon-mounted camera, comprising: A front external mounting box, which can be attached to the front of the weapon, the front external mounting box comprising: A camera configured to acquire images along the firing trajectory of the weapon; A wireless transmitter configured to transmit the acquired images; First power supply; A rear-mounted helmet attachment box, which can be attached to the rear of the helmet, includes: A wireless receiver configured to receive transmitted images; Second power supply; A front-mounted helmet attachment box, which can be attached to the front of the helmet, and the front-mounted helmet attachment box includes: A display, configured to present the transmitted images; and A cable connecting the rear helmet mount to the front helmet mount, the cable being configured to transmit power and transmitted images between the rear and front helmet mounts.

2. The system as claimed in claim 1, wherein, The front external attachment box further includes a Picatinny rail attachment mechanism for securing the front external attachment box to the weapon's Picatinny rail system.

3. The system as described in claim 1, wherein, The camera has a resolution of at least 1,000 lines and a field of view of at least 90 degrees.

4. The system as claimed in claim 1, wherein, The resolution of the display meets or exceeds the resolution of PAL video.

5. The system as claimed in claim 1, wherein, The wireless transmitter and the wireless receiver operate in the 5.8 GHz frequency band.

6. The system of claim 5, wherein, The wireless transmitter has a switchable power output level in the range of 0.01 mW to 1000 mW.

7. The system as claimed in claim 1, wherein, The first power supply and the second power supply each comprise two CR123 batteries connected in series.

8. The system of claim 7, further comprising: The first DC-DC boost converter in the front external casing is configured to boost the voltage from the first power supply to 8 V; as well as The second DC-DC boost converter in the rear-mounted helmet attachment box is configured to boost the voltage from the second power supply to 12 V.

9. The system of claim 8, further comprising a DC-DC buck converter in the front helmet mount, the DC-DC buck converter being configured to reduce the voltage to 5 V to power the display.

10. The system of claim 1, wherein, The front external mounting bracket measures approximately 2 inches in length, 1.5 inches in width, and 0.75 inches in height, allowing it to be mounted below gun optical sights without obstructing their field of view.

11. The system of claim 1, wherein, The cable includes a shielded multicore cable, wherein the shielded multicore cable includes power lines and coaxial video lines within a single sheath.

12. The system of claim 1, wherein, The front external attachment further includes a thermal imaging camera configured to acquire thermal images along the weapon's firing trajectory.

13. A method for acquiring and displaying images from a weapon-mounted camera, comprising: Images are captured along the firing trajectory of the weapon using a camera in a front-mounted external magazine attached to the front of the weapon; The acquired images are wirelessly transmitted from the front external case; The transmitted image is received at the rear helmet attachment box attached to the back of the helmet; Power and the received images are transmitted via cable from the rear helmet attachment box to the front helmet attachment box attached to the front of the helmet. as well as These images are displayed on a monitor located in the front helmet attachment box.

14. The method of claim 13, further comprising: The first voltage output from the battery in the front external case is converted into a higher voltage to power the camera and the wireless transmitter. as well as The second voltage output from the battery in the rear helmet attachment box is converted into a higher voltage to power the wireless receiver and display.

15. The method of claim 13, wherein, Wireless transmission and reception operate in the 5.8 GHz band with adjustable power output levels.

16. The method of claim 13, further comprising mounting the front external mount to the weapon such that the front external mount does not obstruct the field of view of the weapon's existing optical sight.

17. The method of claim 13, further comprising: The thermal imaging camera in the front external pod is used to acquire thermal images along the weapon's firing trajectory. The acquired thermal imaging images are wirelessly transmitted from the front external casing; The transmitted thermal imaging image is received at the rear helmet attachment box; The received thermal imaging image is transmitted from the rear helmet mount to the front helmet mount via the cable. as well as These thermal images are displayed on a monitor located in the front helmet mount.

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