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    • 8. 发明授权
    • Wireless communication terminal having a video image capability
    • 具有视频图像能力的无线通信终端
    • US06751473B1
    • 2004-06-15
    • US09258824
    • 1999-02-26
    • Suresh GoyalRajarshi Ray
    • Suresh GoyalRajarshi Ray
    • H04B138
    • H04N7/148H04M1/0208H04M1/0214H04M1/0237H04M1/0247H04M1/0264H04M2250/20H04N2007/145
    • A portable wireless communication terminal includes electronics for receiving and transmitting both video and audio signals. The electronics are housed in rugged, drop-tolerant consoles, which are interconnected so that they may be extended and reconfigured relative to each other for convenient use and easy, compact storage. A camera lens is included in a camera console, a video display is included in a video display console, and alphanumerical keys are included in a base console. The camera console can be rotated relative to the video display console so that the user can transmit a video signal of the surroundings while watching the video display. Further, the video display console can be extended and tilted relative to the base console.
    • 便携式无线通信终端包括用于接收和发送视频和音频信号的电子装置。 电子设备安装在坚固耐用的容错控制台中,这些控制台互连,使得它们可以相对于彼此进行扩展和重新配置,方便使用,容易紧凑的存储。 相机镜头包括在相机控制台中,视频显示器包含在视频显示控制台中,字母数字键包含在基本控制台中。 相机控制台可以相对于视频显示控制台旋转,使得用户可以在观看视频显示的同时传输周围环境的视频信号。 此外,视频显示控制台可以相对于基本控制台进行扩展和倾斜。
    • 9. 发明授权
    • Method for data compression
    • 数据压缩方法
    • US5596658A
    • 1997-01-21
    • US69321
    • 1993-06-01
    • Robert B. LevyRajarshi Ray
    • Robert B. LevyRajarshi Ray
    • G06K9/00G06T9/00G06K9/36
    • G06K9/00523G06T9/001
    • Compression of a plurality of signal samples y(t.sub.0),y(t.sub.1),y(t.sub.2) . . . y(t.sub.z) may be accomplished by performing a first linear regression to obtain a curve fitted thereto which is represented by a polynomial having a first set of coefficients (a.sub.0,a.sub.1,a.sub.2,a.sub.3 . . . a.sub.n) which is stored in memory (18) or transmitted by a transmitter (20). The error between each of the actual signal samples (y(t.sub.0),y(t.sub.1),y(t.sub.2) . . . y(t.sub.z) and the value approximated by the curve fitted to the values is computed and then thresholded. A second regression analysis is then performed to fit a curve, having a second set of coefficients (b.sub.0,b.sub.1,b.sub.2,b.sub.3 . . . b.sub.q) to the thresholded error values. The second set of coefficients is also stored or transmitted and used, in conjunction with the first set of coefficients, to closely approximate the original set of signal samples.
    • 多个信号样本y(t0),y(t1),y(t2)的压缩。 。 。 y(tz)可以通过执行第一线性回归以获得由其存储在存储器中的具有第一系数集合(a0,a1,a2,a3 ...)的多项式来表示的曲线来完成, 18)或由发射机(20)发射。 每个实际信号样本(y(t0),y(t1),y(t2)... y(tz)和拟合到该值的曲线近似的值之间的误差被计算然后被阈值化。 然后执行回归分析以拟合具有第二组系数(b0,b1,b2,b3 ... bq)的曲线到阈值误差值,第二组系数也被结合存储或传输和使用 具有第一组系数,以紧密接近原始信号样本集合。
    • 10. 发明授权
    • Flat-plate optical device having a gradient index of refraction for
correcting spatial distortions
    • 具有用于校正空间失真的梯度折射率折射率的平板光学装置
    • US5136428A
    • 1992-08-04
    • US709564
    • 1991-06-03
    • Rajarshi Ray
    • Rajarshi Ray
    • G02B27/00H04N5/72
    • H04N5/72G02B27/0025Y10S359/90
    • Distortion of the image displayed by a cathode ray tube display (10,10') can be compensated by placing a flat-plate optical device, fabricated from two plates (14,14') of optical material joined at their edges an an angle, in the field of view of the display. Each of the plates (14,14') is advantageously constructed so as to have a gradient index of refraction such that the index of the plate changes across its length from its free edge to the vertex (16) formed with the other plate. By fabricating each of the plates (14 and 14') such that the index of refraction of each decreases or increases from the free edge of each plate to the vertex formed with the other plate, the device formed by the plates will compensate for either barrel or pincushion distortion, respectively.
    • 由阴极射线管显示器(10,10')显示的图像的失真可以通过放置一个平板光学装置来补偿,该平板光学装置由两个在其边缘处连接成一定角度的光学材料板(14,14')制成, 在展示的视野中。 每个板(14,14')有利地构造成具有梯度折射率,使得板的折射率从其自由边缘到其另一个板形成的顶点(16)的长度上变化。 通过制造每个板(14和14')使得每个板(14和14')使得每个板的折射率从每个板的自由边缘减小或增加到由另一个板形成的顶点,由板形成的装置将补偿任何筒 或枕形失真。