Recording unidimensional holograms with reduced positional sensitivity
during readout
    1.
    发明授权
    Recording unidimensional holograms with reduced positional sensitivity during readout 失效
    记录一维全息图,读出时位置灵敏度降低

    公开(公告)号:US3944321A

    公开(公告)日:1976-03-16

    申请号:US448497

    申请日:1974-03-06

    CPC分类号: G03H1/00 G11B7/0065

    摘要: An arrangement for effecting holographic recording of information occurring in the form of electrical signals, wherein a coherent object wave which has been pulse modulated by an electrical signal is to be recorded, and a coherent reference wave is used to produce a unidimensional hologram upon a moving photosensitive storage medium, and a divergent reference wave and a convergent object wave, or a convergent reference wave and a divergent object wave, or two convergent reference and object waves or two divergent object and reference waves are used. The present invention defines the equation for the position of the reference and object points so as to provide accuracy in reproducing the holograms.

    摘要翻译: 用于实现以电信号形式发生的信息的全息记录的装置,其中将记录已经被电信号脉冲调制的相干对象波,并且使用相干参考波在移动时产生一维全息图 感光存储介质,发散参考波和收敛对象波,收敛参考波和发散对象波,或两个收敛参考对象波或两个发散对象和参考波。 本发明定义了参考点和对象点的位置的方程,以便提供再现全息图的精度。

    Process for holographic recording of data in the form of electrical
signals
    2.
    发明授权
    Process for holographic recording of data in the form of electrical signals 失效
    以电信号的形式全息记录数据的过程

    公开(公告)号:US4175823A

    公开(公告)日:1979-11-27

    申请号:US700839

    申请日:1976-06-29

    摘要: A process of recording information which is in the form of electrical signals by pulse amplitude modulating an object wave and directing it with a reference wave onto a moving light-sensitive storage medium to record hybrid holograms thereon characterized in that the object beam is split into a plurality of parallel object beams each of which is individually and separately pulse modulated with a separate signal to be recorded, focusing the parallel modulated beams into an astigmatic object wave and focusing the reference wave into an astigmatic reference wave, with each wave having a focal line extending parallel to the direction of feed being coplanar and each wave having a focal line which is extending perpendicular to the direction of feed being mirror symmetrical to the storage medium. Preferably, the rate of advance or feed of the storage medium is controlled so that the individual holograms are overlapping.

    摘要翻译: 通过脉冲幅度调制对象波并以参考波将其引导到移动的感光存储介质上来记录信号形式的信息的处理,以记录其上的混合全息图,其特征在于,将物体光束分成 多个平行对象光束每个被单独地和单独地被记录的单独的信号脉冲调制,将并行调制光束聚焦成像散对象波,并将参考波聚焦成像散参考波,每个波具有焦线 平行于馈送方向平行延伸,并且每个波具有垂直于馈送方向延伸的焦线与存储介质镜像对称的焦距线。 优选地,控制存储介质的进给速率或进给速率,使得各个全息图重叠。

    Sensor device for measuring a physical parameter
    3.
    发明授权
    Sensor device for measuring a physical parameter 失效
    用于测量物理参数的传感器设备

    公开(公告)号:US4427881A

    公开(公告)日:1984-01-24

    申请号:US241632

    申请日:1981-03-09

    申请人: Hartwig Ruell

    发明人: Hartwig Ruell

    摘要: A sensor for measuring a physical parameter at a first location which is remote from a second location. The sensor has a plurality of light transmitting fibers each having an input end for receiving light from a source and an output end for emitting the received light to a light detector and a lens for focusing light from the source on one of the input ends of the light transmitting fibers. The lens is displaced to project light to a specific one of the input ends of the fibers in accordance with the value of the physical parameter to be measured.

    摘要翻译: 一种用于测量远离第二位置的第一位置处的物理参数的传感器。 传感器具有多个光传输光纤,每个光传输光纤具有用于接收来自光源的光的输入端和用于将接收到的光发射到光检测器的输出端,以及用于将来自源的光聚焦在其中的一个输入端的透镜 光传输光纤。 根据要测量的物理参数的值,使透镜移位以将光投射到光纤的特定输入端。

    Microphone range finder
    4.
    发明授权
    Microphone range finder 失效
    麦克风测距仪

    公开(公告)号:US4586195A

    公开(公告)日:1986-04-29

    申请号:US624442

    申请日:1984-06-25

    IPC分类号: G01S15/88 H04R3/00 H04R27/00

    CPC分类号: G01S15/88 H04R27/00 H04R3/005

    摘要: A microphone ranging system for providing improved reproduced speech by compensating for the position of a speaker relative to the microphone system. An omnidirectional microphone system with a range finder for determining the distance between the omnidirectional microphone and a speaker is provided. In further embodiments, there are also provided a multiplicity of spaced range finders for determining the exact position of a speaker or speakers relative to a microphone or several microphones. Highly directional microphones are used which are trained on the speaker or speakers and follow them as they move about a room. A tracking system is controlled through signals which originate in a control circuit which is controlled by the range finders.

    摘要翻译: 麦克风测距系统,用于通过补偿扬声器相对于麦克风系统的位置来提供改进的再现语音。 提供了一种具有测距仪的全向麦克风系统,用于确定全向麦克风和扬声器之间的距离。 在另外的实施例中,还提供了多个间隔的测距装置,用于确定扬声器或扬声器相对于麦克风或几个麦克风的确切位置。 使用高度定向的麦克风,这些麦克风在扬声器或扬声器上进行训练,并且随着它们在房间移动时跟随它们。 跟踪系统通过源自由测距仪控制的控制电路的信号来控制。

    Fingerprint sensing device for deriving an electric signal
    5.
    发明授权
    Fingerprint sensing device for deriving an electric signal 失效
    用于导出电信号的指纹感测装置

    公开(公告)号:US4428670A

    公开(公告)日:1984-01-31

    申请号:US317401

    申请日:1981-11-02

    IPC分类号: A61B5/117 G06K9/00 G01N21/17

    CPC分类号: A61B5/1172 G06K9/00013

    摘要: The fingerprint sensor derives an electric output signal in accordance with the topographic relief of the finger under investigation. The sensor incorporates a contact body which is formed at least in part by a light-transparent elastic material. The contact body, preferably a flat sensor plate made of said elastic material and attached to a flat supporting plate, has a light receiving surface and a contact surface for receiving a contact pressure by the finger. Before an investigation process is started, the contact surface is smooth. By pressing the finger against the contact surface, the contact surface will attain a shape conforming to the fingerprint pattern of the finger. The sensor also incorporates a light source, a photodetector and an optical system. The light source obliquely passes light to the contact surface which reflects a light beam modulated in accordance with the fingerprint. The optical system passes the reflected light beam to the light sensitive area of the photodetector. In the optical path between finger and photodetector is included a light stop for blocking reflected light which does not contain fingerprint information.

    摘要翻译: 指纹传感器根据被调查的手指的地形浮雕得出电输出信号。 该传感器包括至少部分由透光弹性材料形成的接触体。 接触体,优选地由所述弹性材料制成并且附接到平坦支撑板的平板传感器板具有光接收表面和用于接收手指的接触压力的接触表面。 调查过程开始之前,接触面平滑。 通过将手指压靠在接触表面上,接触表面将获得符合手指指纹图案的形状。 该传感器还包括光源,光电检测器和光学系统。 光源将光反射到反射根据指纹调制的光束的接触表面。 光学系统将反射光束传递到光电检测器的光敏区域。 在手指和光电检测器之间的光路中包括用于阻挡不含指纹信息的反射光的光停止。

    Device for investigation of a finger relief
    6.
    发明授权
    Device for investigation of a finger relief 失效
    手指缓解装置

    公开(公告)号:US4385831A

    公开(公告)日:1983-05-31

    申请号:US189176

    申请日:1980-09-22

    申请人: Hartwig Ruell

    发明人: Hartwig Ruell

    CPC分类号: G06K9/00033 A61B5/1172

    摘要: The fingerprint sensor device derives an electric output signal in accordance with the topographic relief of a finger under investigation. The sensor incorporates a radiation source, a fingerbed, a first radiation transmitting device, a scanning device, a second radiation transmitting device, and a measuring device responsive to the radiation. The fingerbed has an opening for passing a beam of radiation (light or ultrasound, for instance) from the source therethrough. The scanning device scans this beam of radiation across the finger. Thus, the finger relief is directly scanned by a beam of small impingement spot. The back scattered radiation is directed to the measuring device. Here, the intensity distribution is determined.

    摘要翻译: 指纹传感器装置根据被调查的手指的地形浮雕得出电输出信号。 传感器包括辐射源,指状物,第一辐射传输装置,扫描装置,第二辐​​射传输装置和响应于辐射的测量装置。 指状物具有用于从源穿过其中的辐射束(例如,光或超声波)的开口。 扫描装置通过手指扫描这束辐射。 因此,手指浮雕被一束小的冲击点直接扫描。 背散射的辐射被引导到测量装置。 这里确定强度分布。

    Fingerprint sensor
    7.
    发明授权
    Fingerprint sensor 失效
    指纹传感器

    公开(公告)号:US4394773A

    公开(公告)日:1983-07-19

    申请号:US170606

    申请日:1980-07-21

    申请人: Hartwig Ruell

    发明人: Hartwig Ruell

    IPC分类号: A61B5/117 B44F1/12 G06K9/00

    摘要: The fingerprint sensor transforms the fingerprint information of a finger under investigation into an electric output signal. The sensor incorporates a contact device or sensor plate of a piezoelectric material. This sensor plate has a contact surface. The finger exercises a contact pressure thereon and changes thereby the distribution of electric charges on the contact surface. The new charge distribution is in accordance with the fingerprint pattern of the finger. The sensor further incorporates an electric device which provides the electric output signal in accordance with the distribution of charges.

    摘要翻译: 指纹传感器将被调查手指的指纹信息转换成电输出信号。 该传感器包含压电材料的接触装置或传感器板。 该传感器板具有接触面。 手指对其施加接触压力,从而改变接触表面上电荷的分布。 新的电荷分布符合手指的指纹图案。 该传感器还包括一个根据电荷分布提供电输出信号的电子装置。

    Transducer for fingerprints and apparatus for analyzing fingerprints
    8.
    发明授权
    Transducer for fingerprints and apparatus for analyzing fingerprints 失效
    用于分析指纹的指纹和设备的传感器

    公开(公告)号:US4358677A

    公开(公告)日:1982-11-09

    申请号:US152513

    申请日:1980-05-22

    IPC分类号: A61B5/117 G06K9/00 H01J3/14

    CPC分类号: G06K9/00013 A61B5/1172

    摘要: The fingerprint transducer contains a sensing member having a sensing surface for receiving a fingerprint. The sensing member is made of a material which has a transition or softening temperature that is higher than ambient temperature and close to the temperature of the finger. Particularly, the softening temperature is chosen such that the material of the sensing member will start to melt on the surface when the finger is pressed against the sensing surface. The sensing surface has a surface relief of random roughness. In other words, the sensing surface has variations in elevation which do not show a specific pattern. The method for analyzing fingerprints comprises the steps of generating a surface relief of random space on a sensing surface of a sensing member, generating the fingerprint on the sensing surface by pressing a finger thereto, and optically reading the fingerprint from the sensing surface.

    摘要翻译: 指纹传感器包含感测构件,其具有用于接收指纹的感测表面。 感测构件由具有高于环境温度并且接近手指温度的转变或软化温度的材料制成。 特别地,软化温度被选择为使得当手指被压靠在感测表面上时感测构件的材料将在表面上开始熔化。 感测表面具有随机粗糙度的表面浮雕。 换句话说,感测表面具有不显示特定图案的高度变化。 用于分析指纹的方法包括以下步骤:在感测构件的感测表面上产生随机空间的表面浮雕,通过将手指按压在手指上,在感测表面上产生指纹,并从感测表面光学读取指纹。

    Fiber optical measuring device with compensating properties
    9.
    发明授权
    Fiber optical measuring device with compensating properties 失效
    具有补偿性能的光纤光学测量装置

    公开(公告)号:US4356396A

    公开(公告)日:1982-10-26

    申请号:US217452

    申请日:1980-12-17

    CPC分类号: G01D5/30 G01D5/268

    摘要: The fiber optical measuring device contains a fiber optical transmission line into whose input end are directed a first and a second light beam. Both light beams have wavelengths differing from each other. Associated with the output end of the transmission line is a mirror. This mirror passes the transmitted second light beam therethrough and reflects the transmitted first light beam back into the transmission line. Associated with the output end is also a sensor for measuring a physical parameter. This sensor receives the second light beam and returns a portion thereof back into the output end. This portion depends on the parameter to be measured. Arranged at the input end of the transmission line is an optical device which separates the reflected portion of the first light beam from the returned portion of the second light beam. A first optical detector transforms the first light beam portion into a first electric signal, and a second optical detector transforms the second light beam portion into a second electric signal. A signal processor determines the ratio between the second and the first electric signals. This ratio indicates the value of the physical parameter to be measured.

    摘要翻译: 光纤光学测量装置包括光纤传输线,其输入端指向第一和第二光束。 两个光束具有彼此不同的波长。 与传输线的输出端相关联的是镜像。 该反射镜将透射的第二光束通过其中并将透射的第一光束反射回传输线。 与输出端相关联也是用于测量物理参数的传感器。 该传感器接收第二光束并将其一部分返回到输出端。 该部分取决于要测量的参数。 在传输线的输入端布置的是将第一光束的反射部分与第二光束的返回部分分离的光学装置。 第一光学检测器将第一光束部分变换为第一电信号,第二光学检测器将第二光束部分变换为第二电信号。 信号处理器确定第二和第一电信号之间的比率。 该比率表示要测量的物理参数的值。

    Liquid level indicator
    10.
    发明授权
    Liquid level indicator 失效
    液位指示器

    公开(公告)号:US4355238A

    公开(公告)日:1982-10-19

    申请号:US236277

    申请日:1981-02-20

    申请人: Hartwig Ruell

    发明人: Hartwig Ruell

    IPC分类号: G01F23/292 G01N15/06

    CPC分类号: G01F23/2922

    摘要: The liquid level indicator contains a number of first light fibers, a number of second light fibers, optical lens means interposed between each output end of the first fibers and an associated input end of the second fibers, and light detectors associated with the output ends of the second fibers. The optical lens means has substantially the same index of refraction as the liquid. When the lens means is not immersed into the liquid, it focusses light from the first fiber to the second fiber. This focussing effect is eliminated when the lens is submerged into the liquid.

    摘要翻译: 液位指示器包含多个第一光纤,多个第二光纤,插在第一光纤的每个输出端和第二光纤的相关输入端之间的光学透镜装置,以及与第二光纤的输出端相关联的光检测器 第二根纤维。 光学透镜装置具有与液体基本相同的折射率。 当透镜装置没有浸入液体中时,它将来自第一光纤的光聚焦到第二光纤。 当透镜浸没在液体中时,可以消除这种聚焦效应。