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    • 41. 发明申请
    • REMOTELY CONTROLLED, INFRARED BEACON SYSTEM FOR GUIDING THE VISUALLY IMPAIRED
    • 远程控制,红外线信标系统,用于指导视觉受损
    • WO1995004440A1
    • 1995-02-09
    • PCT/US1994008463
    • 1994-07-28
    • BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    • BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMHANCOCK, Michael, B.
    • H04Q07/00
    • G08G1/005
    • A remote controlled infrared beacon system enables blind individuals to be self-guiding toward desired destinations. A code is entered via keypad (14) and encoder (42) of a hand-held transceiver (10) which emits a pulse code modulated interrogation signal (20) via a radio transmitter (43), thereby selectively activating an infrared beacon unit (13) corresponding to a desired location using a receiver (44), decoder (45), oscillator (46) and infrared light emitting diodes (47). A directional infrared lens (48) and receiver/decoder (49) in the transceiver (10) are used to scan the horizontal plane to locate or home in on the infrared signal (22). An amplifier (50) drives a vibrator (51) to signal the user that the beacon (13) has been directionally located. Multiple beacons (1, 3, 8, 9) are employed to establish paths which may be followed by serially activating successive beacons to navigate to a desired destination.
    • 远程控制的红外线信标系统使得盲人能够自动引导到期望的目的地。 通过经由无线电发射机(43)发出脉冲编码调制询问信号(20)的手持式收发器(10)的键盘(14)和编码器(42)输入代码,从而选择性地激活红外信标单元 13),使用接收器(44),解码器(45),振荡器(46)和红外发光二极管(47)对应于期望的位置。 收发器(10)中的定向红外透镜(48)和接收器/解码器(49)用于扫描水平面以定位或置于红外信号(22)上。 放大器(50)驱动振动器(51)以向用户发信号(13)已定向定位。 采用多个信标(1,3,8,9)来建立路径,其后面可以连续地激活连续信标以导航到期​​望的目的地。
    • 42. 发明申请
    • A HIGH PERFORMANCE POSITRON CAMERA
    • 高性能摄像机
    • WO1995003554A1
    • 1995-02-02
    • PCT/US1994008156
    • 1994-07-19
    • BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    • BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMWONG, Wai-HoiHICKS, Keri
    • G01T01/164
    • G01T1/1644A61B6/037A61B6/508G01T1/2985
    • The invention relates to methods and apparatus for cameras for gamma radiation, including cameras for positron emission tomography (PET). Included in the invention are cameras having radiation detector arrays (24) splittable into sections (30, 30', 33, 33'), which then may be used to extend the axial field-of-view in a two-dimensional mode. Individual array sections may be equipped with collimators. Additionally, splittable PET cameras having detector arrays (70) approximately one-fourth the diameter as conventional whole-body PET cameras are disclosed as having insertable conformal collimators (74, 76, 79) comprising stacks of planar rings. The inner contours of the planar rings are adapted to accept objects to be imaged in the camera and to closely conform to the objects' surface contours.
    • 本发明涉及用于γ辐射的相机的方法和装置,包括用于正电子发射断层摄影(PET)的照相机。 本发明中包括具有可分离成部分(30,30',33,33')的辐射检测器阵列(24)的相机,其然后可以用于以二维模式延伸轴向视场。 单个阵列部分可以配备准直器。 此外,公开了具有作为常规全身PET照相机的大约四分之一直径的检测器阵列(70)的可分离PET相机具有包括平面环堆叠的可插入共形准直器(74,76,79)。 平面环的内部轮廓适于接收要在相机中成像的物体并且紧密地符合物体的表面轮廓。
    • 46. 发明申请
    • DIAGNOSIS OF DYSPLASIA USING LASER INDUCED FLUORESCENCE
    • 使用激光诱导荧光检测DYSPLASIA
    • WO1994026168A1
    • 1994-11-24
    • PCT/US1994005230
    • 1994-05-11
    • BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    • BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMRAMANUJAM, NirmalaMAHADEVAN, AnitaRICHARDS-KORTUM, RebeccaMITCHELL, Michele, FollenTHOMSEN, Sharon
    • A61B06/00
    • A61B5/0084A61B5/0071A61B5/0075A61B5/4331G01N21/6402G01N2021/6417
    • Apparatus and in vivo methods for distinguishing normal and abnormal cervical tissue and detecting cervical intraepithelial neoplasia (CIN) in a diagnostic tissue sample. A source of electromagnetic radiation (36) is applied to the diagnostic cervical tissue sample and the presumptively known normal cervical tissue. Fluorescence intensity spectra induced in the diagnostic tissue sample and the presumptively known tissue by the radiation source is detected by at least one radiation detector (26). A computer (20) is programmed to measure a peak normal fluorescence intensity value in each of the normal fluorescence intensity spectra, to calculate an average peak normal fluorescence intensity from the peak normal fluorescence intensity values, to measure a peak fluorescence intensity value from the fluorescence intensity spectrum induced in the diagnostic tissue sample, to calculate a slope parameter which is indicative of tissue abnormality, to calculate relative peak fluorescence intensity as a function of the peak intensity value, the average peak normal intensity, and to detect tissue abnormality as a function of the slope parameter and the relative peak fluorescence intensity.
    • 用于区分正常和异常宫颈组织和检测诊断组织样品中宫颈上皮内瘤变(CIN)的装置和体内方法。 将电磁辐射源(36)应用于诊断子宫颈组织样品和推测已知的正常宫颈组织。 通过至少一个放射线检测器(26)检测在诊断组织样品和由辐射源推测的已知组织中诱导的荧光强度光谱。 计算机(20)被编程为测量每个正常荧光强度光谱中的峰值正常荧光强度值,以从峰值正常荧光强度值计算平均峰值正常荧光强度,以测量来自荧光的峰值荧光强度值 在诊断组织样本中诱导的强度光谱,计算指示组织异常的斜率参数,计算作为峰值强度值,平均峰值正常强度的函数的相对峰值荧光强度,并将组织异常检测为功能 的斜率参数和相对峰值荧光强度。