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公开(公告)号:US07356261B2
公开(公告)日:2008-04-08
申请号:US10770281
申请日:2004-02-02
申请人: Kiriko Yamada , Takayoshi Sasao , Masahisa Sakai , Junichi Kubota
发明人: Kiriko Yamada , Takayoshi Sasao , Masahisa Sakai , Junichi Kubota
IPC分类号: H04B10/10
CPC分类号: H04B10/114 , H04B2210/075
摘要: An optical wireless communications system has a first optical wireless communications apparatus for transmitting a pilot beam and a second optical wireless communications apparatus for receiving the pilot beam to have a match for an optical axis of the first optical wireless communications apparatus and another optical axis of the second optical wireless communications apparatus. The first optical wireless communications apparatus has a modulator for modulating the pilot beam with a specific signal. The second optical wireless communications apparatus has a demodulator for demodulating the modulated and transmitted pilot beam to reproduce the specific signal and sending the reproduced specific signal to at least either the second optical wireless communications apparatus or an apparatus connected to the second optical wireless communications apparatus.
摘要翻译: 光无线通信系统具有用于发送导频波束的第一光无线通信装置和用于接收导频波束以使第一光无线通信装置的光轴匹配的第二光无线通信装置,以及第二光无线通信装置的另一光轴 第二光无线通信装置。 第一光无线通信装置具有用于利用特定信号调制导频波束的调制器。 第二光无线通信装置具有解调器,用于解调调制和发送的导频波束以再现特定信号,并将再现的特定信号发送到至少第二光无线通信装置或连接到第二光无线通信装置的装置。
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公开(公告)号:US07239811B2
公开(公告)日:2007-07-03
申请号:US10776660
申请日:2004-02-09
申请人: Kiriko Yamada , Takayoshi Sasao , Junichi Kubota
发明人: Kiriko Yamada , Takayoshi Sasao , Junichi Kubota
IPC分类号: H04B10/00
CPC分类号: H04B10/1141
摘要: An optical-axis directional indicating apparatus for optical communication includes a photoreceptor having a light-receiving surface and a plurality of optical receiving elements arranged on the surface in a first direction and a second direction orthogonal to the first direction, to receive a transmitted light beam, a detector to detect levels of the light beam received at the optical receiving elements, a plurality of display elements arranged in the first and second directions so as to correspond to the optical receiving elements of the photoreceptor, and a switch circuit to selectively turn on or off the display elements in accordance with the levels of the light beam detected by the detector, to indicate whether or not an optical axis of the light beam is deviated in the first and/or the second direction on the light-receiving surface of the photoreceptor.
摘要翻译: 一种用于光通信的光轴方向指示装置包括具有光接收表面的光感受器和布置在与第一方向正交的第一方向和第二方向的表面上的多个光接收元件,以接收透射光束 检测器,用于检测在光接收元件处接收的光束的电平;多个显示元件,其布置在第一和第二方向上以对应于感光体的光接收元件;以及开关电路,用于选择性地接通 或者根据由检测器检测到的光束的电平离开显示元件,以指示光束的光轴是否在第一和/或第二方向上在第一和/或第二方向上偏离 感光器。
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公开(公告)号:US5847874A
公开(公告)日:1998-12-08
申请号:US638547
申请日:1996-04-26
申请人: Takayoshi Sasao , Fumio Ogasawara , Satoru Yokoi
发明人: Takayoshi Sasao , Fumio Ogasawara , Satoru Yokoi
CPC分类号: G02B7/102
摘要: A control apparatus for controlling quickly and correctly, positions of a group of zoom lenses and a group of focus lenses without being subjected to an attitude of a camera. The control apparatus has a group of zoom lenses, a group of focus lenses, actuators for mechanically driving the group of zoom lenses and the group of focus lenses, drive circuits for driving the actuators, and a position detecting devices for detecting each of the present positions of the group of zoom lenses and focus lenses. The apparatus also includes a target position calculating device for calculating a target position for each group of lenses, a positioning device for respectively positioning the groups of the lenses at their target positions, an evaluation device for evaluating the results of the positioning of the focus group and the zoom group of lenses, and a correction device for outputting corrected values for canceling errors caused by the effect of gravity by referring to the output of the positioning device and that of the evaluation device.
摘要翻译: 用于快速正确地控制一组变焦透镜和一组聚焦透镜的位置的控制装置,而不受相机的姿态的影响。 控制装置具有一组变焦透镜,一组聚焦透镜,用于机械驱动该组变焦透镜的致动器和一组聚焦透镜,用于驱动致动器的驱动电路,以及用于检测每个目前的位置检测装置 变焦镜头和对焦镜头组的位置。 该装置还包括用于计算每组透镜的目标位置的目标位置计算装置,用于将这些透镜组分别定位在其目标位置的定位装置,用于评估焦点组的定位结果的评估装置 和变焦组的透镜,以及修正装置,用于通过参照定位装置和评价装置的输出,输出用于抵消由重力影响引起的误差的校正值。
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