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    • 1. 发明授权
    • Process and apparatus for communicating with a user antenna
    • US10530429B2
    • 2020-01-07
    • US15554663
    • 2016-03-02
    • Stratospheric Platforms LimitedPaul AlexanderPeter DavidsonAndrew Faulkner
    • Paul AlexanderPeter DavidsonAndrew Faulkner
    • H04B7/024H04B7/185H04B7/06G01S19/44G01S19/43G01S5/10G01S13/95
    • A process for cooperative aerial inter-antenna beamforming for communication between (a) multiple moving platforms, each platform having an aerial antenna mounted thereon, such that the aerial antennas have variable positions and orientations over time, and (b) at least one antenna mounted on user equipment having a lower altitude than the aerial antennas; the process involving transmitting data relating to the positions and orientations of the aerial antennas to a processing system, the processing system calculating and transmitting beamforming instructions to the aerial antennas, the aerial antennas thereby transmitting or receiving respective component signals for each user antenna, the component signals for each user antenna having essentially the same information content but differing in their phase and usually amplitude, so as to form a cooperative beam from the cooperative sum of the signals between the aerial antennas and the user antenna. A method of determining the position of a moving aerial antenna or antenna element mounted on at least one moving platform, such that the aerial antennas have variable positions and orientations over time, the method involving determining the phase difference yi, being a fraction of a wavelength between the values 0 and 1, between signals of known wavelength λi; transmitted between (a) i ground based transmitters which may be backhaul base stations, wherein i is at least three, the ground based transmitters having known position to within λi/10 and (b) the aerial antenna or antenna element, thereby establishing the distance from the base station to the aerial antenna or antenna element to be λi(ni+yi), wherein ni is an unknown integer; determining the position of the aerial antennas or antenna elements approximately by differential GPS or other methods to within a small number of wavelengths λi thereby establishing that ni can be one of a limited number of possible integer values for each signal; the number of base stations and their positions being sufficient to allow elimination of the possible values of ni that are inconsistent with the limited number of possible values for ni from the other ground based transmitters, until only one integer value for each ni is established; establishing the location of the aerial antenna or antenna element by triangulation of its known distance λi(ni+yi), from at least three ground based transmitters.
    • 6. 发明授权
    • Folding disposable cookery unit
    • 折叠一次性烹饪单元
    • US4958618A
    • 1990-09-25
    • US447887
    • 1989-12-08
    • Peter Davidson
    • Peter Davidson
    • A47J36/02A47J37/07
    • A47J37/0768A47J36/022
    • A portable cooking apparatus is disclosed having a foldable firebox body made up of a bottom panel, a plurality of side panels sequentially hinged together and hingedly connected to the bottom panel and with each side panel hinged for folding the panel portions in overlapping relationship so that the side panels can be folded into a body closed position with the side panel portions overlapping for enclosing material such as a fuel supply, an igniter for the fuel supply, and utensils between the bottom panel and the folded overlapping side panels. With the side panel portions unfolded the body is in open position for supporting a cooking surface around the top edges of the side panels. The foldable body can include downwardly projecting bosses to position the body on a support surface, upwardly projecting bosses for supporting the fuel member, and apertures for air to aid in combustion. The fuel supply can be a preformed charcoal member having a base portion and a plurality of pyramidal portions projecting upwardly from the base and the igniting member can extend over and around the pyramidal portions of the charcoal member.
    • 公开了一种便携式烹饪设备,其具有由底板,多个侧板顺序地铰接在一起并铰接地连接到底板的可折叠火箱体,并且每个侧板铰接用于以重叠关系折叠面板部分,使得 侧板可以折叠成主体关闭位置,其中侧面板部分重叠用于诸如燃料供应的封闭材料,用于燃料供应的点火器,以及底板和折叠的重叠侧板之间的餐具。 当侧面板部分展开时,主体处于打开位置,用于支撑围绕侧板的顶部边缘的烹饪表面。 可折叠主体可以包括向下突出的凸起,以将主体定位在支撑表面上,向上突出的用于支撑燃料构件的凸起,以及用于空气的孔用于辅助燃烧。 燃料供给可以是预成型的炭构件,其具有基部和从基部向上突出的多个金字塔形部分,并且点火构件可以在木炭构件的金字塔形部分的上方和周围延伸。
    • 8. 发明授权
    • Swimming pool therapy apparatus
    • 游泳池治疗仪
    • US4665572A
    • 1987-05-19
    • US924824
    • 1986-10-30
    • Peter DavidsonGretchen Buck
    • Peter DavidsonGretchen Buck
    • A61H33/00E04H3/18A61H33/02E03C1/02
    • A63B69/125A61H33/0091F04D3/005
    • A therapy apparatus to be mounted in a pool of water for generating a laminar flow of water at a rate sufficient for exercising and therapy purposes. A housing is secured externally to a swimming pool, the water inlet and outlet being disposed within the pool of water and being supported by the external housing. The water inlet is located below the surface of the swimming pool, water being forced through the inlet and upwardly by a rotating impeller to the outlet. The water outlet is below the water surface and directs the flow of water substantially parallel to the surface of the swimming pool and at an angle of approximately 90 degrees of arc with respect to the flow at the impeller. Sets of radial, elbow and outlet diffusers are mounted within the water flow chamber to create a laminar flow of water at the output and substantially eliminate all unwanted turbulance.
    • 一种治疗装置,其被安装在水池中,以产生足以进行运动和治疗目的的速率的水流。 外壳被固定在游泳池的外部,进水口和出水口设置在水池内,由外壳支撑。 水入口位于游泳池的表面下方,水被迫通过入口并向上通过旋转的叶轮向出口。 出水口位于水面以下,并引导水流大致平行于游泳池的表面,并相对于叶轮处的流动以约90度的角度引导。 一组径向,弯头和出口扩散器安装在水流室内,以在输出端产生一层水流,并且基本上消除了所有有害的湍流。