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
    • 41. 发明授权
    • Vibrating mass gyro
    • 振动质量陀螺仪
    • US07040162B2
    • 2006-05-09
    • US10874753
    • 2004-06-24
    • Jean-Claude LehureauBernard ChaumetPierre-Olivier Lefort
    • Jean-Claude LehureauBernard ChaumetPierre-Olivier Lefort
    • G01P9/04
    • G01C19/5642
    • Unlike customary vibrating mass gyros which operate by exciting a first fundamental mode of vibration of the vibrating mass and by detecting the effect of the Coriolis force on a second fundamental mode of vibration of the vibrating mass orthogonal to the first mode, this gyro operates by giving its suspended mass a circular motion alternately in the forward and reverse directions and by deducing the gyrometric effect from the difference between the apparent frequencies of the circular motion of the suspended mass in one direction and in the other. This allows a considerable reduction in the drafting of the heading measurement obtained with this type of gyro.
    • 与通过激发振动块的第一基本振动模式和通过检测科里奥利力对与第一模式正交的振动质量的第二基本振动模式的影响而操作的常规振动质量陀螺仪不同,该陀螺仪通过给予 其悬挂质量是沿前后方向交替的圆周运动,并且通过从悬架在一个方向上的圆周运动的表观频率和另一个方向的差异来推导出陀螺效应。 这样可以大大减少用这种陀螺仪获得的航向测量的起草。
    • 45. 发明授权
    • Optical storage method and device for storing and reading digital
information
    • 用于存储和读取数字信息的光存储方法和装置
    • US5659536A
    • 1997-08-19
    • US463356
    • 1995-06-05
    • Christian MaillotJean-Pierre HuignardJean-Claude LehureauPaul-Louis MeunierClaude Puech
    • Christian MaillotJean-Pierre HuignardJean-Claude LehureauPaul-Louis MeunierClaude Puech
    • G11B7/00G11B7/004G11B7/0065
    • G11B7/0065
    • Disclosed is a system for the recording of data on optic disks. Presently used optic disks, which can be read with lasers working in wavelengths of the visible region (between 0.5 and 0.8 microns), have a maximum surface storage density of the order of one data bit per elementary zone having an area of about one square micrometer. Beyond this limit, the diffraction does not allow the neighboring zones to be distinguished. A means is proposed to considerably increase the storage capacities: in an elementary zone of a layer, an information bit is written not in the form of a point of absorption of a laser light but in the form of a diffraction grating with a determined pitch. Several diffraction gratings, having pitches different from one another, may be superimposed at the same position, enabling the recording, in one and the same zone, of several information bits. The diffraction gratings are made by a periodic local variation of the optic index of the layer. They are made by a high energy laser beam, out of a material with an index that may vary as a function of this energy. The reading is done by a frequency tunable laser that enables the detection, for different frequencies, of the presence or absence of diffraction gratings.
    • 公开了一种用于在光盘上记录数据的系统。 目前使用的可以在可见光波长范围(0.5至0.8微米)工作的激光器读取的光盘具有的面积约为1平方微米的每个基本区域的一个数据位的最大表面存储密度 。 除此之外,衍射不允许区分相邻区域。 提出了显着增加存储容量的手段:在层的基本区域中,信息位不以激光吸收点的形式写入,而是以具有确定的间距的衍射光栅的形式写入。 具有彼此不同的间距的几个衍射光栅可以叠加在相同位置,使得能够在同一个区域中记录几个信息位。 衍射光栅由层的光学索引的周期性局部变化制成。 它们由高能激光束制成,具有可能随该能量的函数而变化的指数的材料。 读数由可调频激光器完成,能够检测不同频率的衍射光栅的存在或不存在。