High speed hot shoe
An interface system for a helmet mounting system comprises a helmet strap assembly. A helmet shroud includes a shroud interface assembly configured to mate with a first hot shoe of a helmet mount assembly. The shroud interface assembly comprises a high speed data interface configured to be electrically coupled to the first hot shoe when the shroud interface assembly is coupled with the first hot shoe. A battery mount assembly comprises a second hot shoe portion which is configured to mate with a hot shoe receiver of a battery pack. The second hot shoe portion comprises a high speed data interface which is configured to be electrically coupled to high speed contacts on the hot shoe receiver of the battery pack when the second hot shoe portion is coupled with the hot shoe receiver of a battery pack.
1. An interface system for a helmet mounting system, comprising:
a helmet strap assembly ( 700 ) including a strap ( 702 );
a helmet shroud ( 600 ) disposed at a first end of the helmet strap assembly ( 700 ), the helmet shroud ( 600 ) including a shroud interface assembly ( 100 ′), the shroud interface assembly being configured to mate with a first hot shoe ( 200 ′) of a helmet mount assembly ( 300 );
the shroud interface assembly ( 100 ′) comprising a high speed data interface ( 610 ) including a first plurality of high speed contacts ( 110 ′) which are configured to be electrically coupled to a second plurality of high speed contacts ( 210 ′) on the first hot shoe ( 200 ′) when the shroud interface assembly ( 610 ) is coupled with the first hot shoe ( 200 ′);
a battery mount assembly ( 800 ) comprising a second hot shoe portion ( 100 ) disposed at a second end of the helmet strap assembly ( 700 ) opposite the first end, the second hot shoe portion ( 100 ) being configured to mate with a hot shoe receiver ( 200 ) of a battery pack ( 900 ); and
the second hot shoe portion ( 100 ) comprising a high speed data interface including a third plurality of high speed contacts ( 110 ) which are configured to be electrically coupled to a fourth plurality of high speed contacts ( 210 ) on the hot shoe receiver ( 200 ) of the battery pack ( 900 ) when the second hot shoe portion ( 100 ) is coupled with the hot shoe receiver ( 200 ) of a battery pack ( 900 ).
2. The hot shoe interface system of claim 1 , wherein the helmet strap assembly ( 700 ) is configured to be run over an exterior surface of a helmet ( 500 ).
3. The hot shoe interface system of claim 1 , wherein the first plurality of high speed contacts ( 110 ′) are contact pads and the second plurality of high speed contacts ( 210 ′) are electrically conductive pins.
4. The hot shoe interface system of claim 1 , wherein each high speed contact of the first plurality of high speed contacts ( 110 ′) is electrically coupled to a corresponding one of the high speed contacts of the third plurality of high speed contacts ( 110 ) by a respective conductor ( 217 ) of a twisted pair ( 218 ) of conductors passing within the strap ( 702 ).
5. The hot shoe interface system of claim 4 , wherein each twisted pair ( 218 ) of conductors is a twisted pair differential cable configured to provide 90 ohms of impedance.
6. The hot shoe interface system of claim 1 , wherein the shroud interface assembly ( 610 ) further comprises a power interface ( 620 ) including a first set of power contacts ( 108 ′) and ground contacts ( 106 ′).
7. The hot shoe interface system of claim 6 , further comprising:
the helmet mount assembly ( 300 ) wherein the helmet mount assembly comprises the first hot shoe ( 200 ′);
the first hot shoe ( 200 ′) including a high speed data interface portion ( 330 ) including the second plurality of high speed contacts ( 210 ′) and a power connector portion including a second set of power contacts ( 208 ′) and ground contacts ( 206 ′) which engage the first set of power contacts ( 108 ′) and ground contacts ( 106 ′), respectively.
8. The hot shoe interface system of claim 7 , wherein the shroud interface assembly ( 610 ) further includes an optical interface portion including a plurality of optical terminals ( 101 ′).
9. The hot shoe interface system of claim 7 , wherein the helmet mount assembly ( 300 ) further comprises a receptacle ( 200 ″) including a high speed data interface portion including the plurality of high speed contacts ( 210 ″), the receptacle configured to mate with a viewing device ( 400 ).
10. The hot shoe interface system of claim 9 , wherein the receptacle ( 200 ″) is configured to receive a viewing device ( 400 ) selected from the group consisting of a night vision device, camera, and near-eye display.
11. The hot shoe interface system of claim 7 , wherein the helmet mount assembly ( 300 ) is pivotable between a first operable position wherein the viewing device is positioned in front of an eye of a user and a the operable position and a second stowed position wherein the viewing device is positioned out of a line of sight of the user.
12. The hot shoe interface system of claim 7 , wherein the helmet mount assembly ( 300 ) further comprises a connector ( 394 ) configured for operable connection with an accessory device.
13. The hot shoe interface system of claim 12 , wherein the connector ( 394 ) is a Type-C USB connector.
14. The hot shoe interface system of claim 1 , further comprising the battery pack ( 900 ), the battery pack including the hot shoe receiver ( 200 ).
15. The hot shoe interface system of claim 1 , further comprising an RF antenna ( 640 ) electrically coupled to an RF interface ( 105 ) on the second hot shoe portion ( 100 ).
16. The hot shoe interface system of claim 15 , wherein the RF interface ( 105 ) is a coaxial RF interface.