会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Circuit for detecting phase relationship between two signals
    • 用于检测两个信号之间的相位关系的电路
    • US4379221A
    • 1983-04-05
    • US167488
    • 1980-07-11
    • Jeremiah Y. AvinsDonald W. Phillion
    • Jeremiah Y. AvinsDonald W. Phillion
    • G01P13/04G01R25/00G01R25/08H03D13/00G06M3/14
    • G01R25/08G01P13/04G01R25/005
    • A circuit for detecting leading or lagging phase relationship between first and second two-level input signals at each level transition of a selected one of the input signals and comprising first and second Exclusive OR gates each having first and second input terminals and a single output terminal and each responsive to signals of equal and non-equal logic levels supplied to the first and second input terminals thereof to produce an output signal having high and low logic levels, respectively. Further connections supply the first and second input signals to the first input terminal of the first and second Exclusive OR gates, respectively. Also provided is a decoder responsive to the output signals of the first and second Exclusive OR gates to determine the phase relationship of the first and second signals at each level transition of the selected input signal and for generating and supplying to the input terminals of the first and second Exclusive OR gates, after each determination of phase relationship, an acknowledgment signal which prepares the circuit for the reception of the next transition of the selected input signal.
    • 一种用于在所选输入信号的每个电平转换处检测第一和第二两电平输入信号之间的前导或滞后相位关系的电路,包括每个具有第一和第二输入端的第一和第二异或门,以及单个输出端 并且每个响应于提供给其第一和第二输入端的相等和不相等逻辑电平的信号,以分别产生具有高和低逻辑电平的输出信号。 另外的连接将第一和第二输入信号分别提供给第一和第二异或门的第一输入端。 还提供了响应于第一和第二异或门的输出信号的解码器,以确定所选输入信号的每个电平转换时的第一和第二信号的相位关系,并且用于生成和提供给第一和第二异或门的输入端 以及在每次确定相位关系之后的第二异或门,确定信号,其准备用于接收所选输入信号的下一个转换的电路。
    • 4. 发明授权
    • Constant volume gas cell optical phase-shifter
    • 恒体积气体电池光学移相器
    • US06421130B1
    • 2002-07-16
    • US09282009
    • 1999-03-29
    • Donald W. Phillion
    • Donald W. Phillion
    • G01B902
    • G01N21/03G01B9/0201G01B2290/35
    • A constant volume gas cell optical phase-shifter, particularly applicable for phase-shifting interferometry, contains a sealed volume of atmospheric gas at a pressure somewhat different than atmospheric. An optical window is present at each end of the cell, and as the length of the cell is changed, the optical path length of a laser beam traversing the cell changes. The cell comprises movable coaxial tubes with seals and a volume equalizing opening. Because the cell is constant volume, the pressure, temperature, and density of the contained gas do not change as the cell changes length. This produces an exactly linear relationship between the change in the length of the gas cell and the change in optical phase of the laser beam traversing it. Because the refractive index difference between the gas inside and the atmosphere outside is very much the same, a large motion must be made to change the optical phase by the small fraction of a wavelength that is required by phase-shifting interferometry for its phase step. This motion can be made to great fractional accuracy.
    • 特别适用于相移干涉测量的恒定体积气体电池光学移相器包含在与大气压力稍微不同的压力下的密闭体积的气氛气体。 在单元的每一端存在光学窗口,并且随着单元的长度改变,穿过单元的激光束的光程长度变化。 该电池包括具有密封件和体积平衡开口的可移动同轴管。 因为电池的体积是恒定的,所以气体的压力,温度和密度随着电池长度的变化而不会改变。 这产生了气室长度变化与穿过其的激光束光学相位变化之间的精确线性关系。 由于内部气体和外部气氛之间的折射率差异非常相似,所以必须进行大的运动以使光学相位改变相移阶段相移干涉测量所需的波长的小部分。 这个运动可以做出很大的分数精度。
    • 5. 发明授权
    • Residential mailbox
    • 住宅邮箱
    • US4753386A
    • 1988-06-28
    • US946904
    • 1986-12-29
    • Donald W. Phillion, Sr.
    • Donald W. Phillion, Sr.
    • A47G29/122B65D91/00
    • A47G29/121
    • An improved mailbox comprising a first tubular shaped compartment (18) with side walls and a flat bottom (50), a hinged front door (22) and a first pivotal flag assembly (170, FIG. 10) which is normally raised by the homeowner when he places mail in the mailbox for the postman to pick up and then lower the flag assembly, a second pivotal flag assembly (24), a first cable arrangement (40) responsive to opening of the front door to raise the second flag assembly (24) and leave it raised when the front door is closed to advise the homeowner that the postman has come, and a fastening arrangement (156 FIG. 9) for disabling the first cable arrangement by the homeowner when he is away from home, so no one will know that mail is in the mailbox. A second compartment (92) positioned below the first compartment (90) comprises a lockable rear door (112) therein. The flat bottom of the first compartment (90) is separated longitudinally along its length into first and second substantially equal sections (60 and 62 FIG. 4), with hinging means securing the edges of the first and second sections (60 and 62) to the side walls of the first compartment to enable the first and second sections (60, 62) to swing downwardly into the second compartment (92) where they normally will remain, thus leaving the first compartment (90) opened into the second compartment (92) to allow mail placed in the first compartment (90) to fall into the second compartment (92). A second cable arrangement (64, 66) responds to the opening of the front door (22) to pull up the first and second sections, while the front door is opened, into a common horizontal plane to form the flat bottom (50) of the first tubular type mailbox, and a locking arrangement (126, 130 FIG. 8) for locking the first and second sections into the common horizontal plane to receive mail.
    • 一种改进的邮箱,包括具有侧壁和平底部(50)的第一管形隔室(18),铰接的前门(22)和第一枢转标记组件(170,图10),其通常由房主提升 当他将邮件放在邮箱中以邮递员接收然后降低标志组件时,第二枢转标志组件(24),响应于打开前门以升高第二标志组件的第一电缆装置(40) 24),并且当前门关闭时将其抬起,以向业主通知邮递员已经到达,以及用于当家庭离开家庭时禁止房主的第一电缆安排的紧固装置(156图9),因此没有 人们会知道邮件在邮箱中。 位于第一隔室(90)下方的第二隔室(92)包括其中可锁定的后门(112)。 第一隔室(90)的平底部沿其长度纵向分离为第一和第二基本相等的部分(60和62图4),铰接装置将第一和第二部分(60和62)的边缘固定到 所述第一隔室的侧壁使得所述第一和第二部分(60,62)能够向下摆动到所述第二隔室(92)中,在所述第二隔室(92)中通常将保持所述第二隔室(92),从而使所述第一隔室(90)打开到所述第二隔室 )以允许放置在第一隔间(90)中的邮件落入第二隔间(92)。 第二电缆装置(64,66)响应于前门(22)的开口,以将前门打开时将第一和第二部分拉起,使其成为共同的水平平面,以形成平底部(50) 第一管状型邮箱和用于将第一和第二部分锁定到公共水平面中以接收邮件的锁定装置(126,130,图8)。