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    • 82. 发明申请
    • System and method for telecentric projection lenses
    • 远心投影镜头的系统和方法
    • US20060050401A1
    • 2006-03-09
    • US11262024
    • 2005-10-28
    • Biljana Tadic-GalebRobert FischerLarry Owen
    • Biljana Tadic-GalebRobert FischerLarry Owen
    • G02B3/00
    • G02B13/16G02B13/22
    • A projection lens system which includes a telecentric lens assembly. The lens may be used to form an image from a light source, including for example a resonant microcavity phosphor or cathode ray tube, onto a screen or display, such as in a television or a projection device. In accordance with one embodiment, a planar cooling gap or cavity (which may or may not contain a cooling liquid) is included between the imaging surface and the matching planar surface of the field lens. The use of a planar gap alleviates any temperature differentials across the cooling liquid and the lens surfaces, as compared with alternate designs that may have a non-planar gap between the faceplate and the field lens, or that use liquid lenses.
    • 一种包括远心透镜组件的投影透镜系统。 透镜可用于从诸如电视或投影设备的屏幕或显示器上的光源(包括例如谐振微腔荧光体或阴极射线管)形成图像。 根据一个实施例,在成像表面和场透镜的匹配平面之间包括平面冷却间隙或空腔(其可以包含或可以不包含冷却液体)。 与可能在面板和场透镜之间具有非平面间隙的替代设计或使用液体透镜相比,使用平面间隙减轻了冷却液体和透镜表面之间的任何温差。
    • 84. 发明授权
    • Equalizer with a sequence estimation method with state reduction for a
receiver in a digital transmission system
    • 具有用于数字传输系统中的接收机的具有状态降低的序列估计方法的均衡器
    • US6044111A
    • 2000-03-28
    • US973023
    • 1997-11-26
    • Raimund MeyerRobert FischerWolfgang GerstackerJohannes HuberPeter Schramm
    • Raimund MeyerRobert FischerWolfgang GerstackerJohannes HuberPeter Schramm
    • H04B1/76H04B7/005H04L25/03H03H7/30H03H7/40H03K5/159
    • H04L25/03178H04L25/03261
    • The invention relates to a digital transmission system having a receiver which includes an equalizer for estimating transmitted binary symbols, from a sequence of sample values (6) of a received signal distorted by a transmission channel, by a reduced-state sequence estimation method or a reduced-state single symbol estimation method (11). To provide a receiver featuring high reliability combined with a clear state reduction of the estimation method, a minimum-phase substitute system (14) distorts the sample values received after received after a known training sequence (27) in the sequence of sample values (6)in the received order, and a maximum-phase substitute system (14) distorts the sample values (6) received before a known training sequence (27) and to be processed in reverse order for forming an estimate (11) for a received signal. The number coefficients of the impulse response which are reduced by the state reduction and used for the estimation, render the estimation inaccurate. In a minimum-phase system, the first coefficients of the impulse response of the substitute system have maximum energy with an unchanged frequency response. When these coefficients transformed in this manner are used for the state reduction, nearly all of the information is used for the estimation. This achieves a high reliability of the sequence estimation as is achieved when all the states are used.
    • PCT No.PCT / IB97 / 00361 Sec。 371日期:1997年11月26日 102(e)1997年11月26日PCT PCT 1997年4月7日提交PCT公布。 公开号WO97 / 39550 PCT 日期:1997年10月23日本发明涉及一种具有接收机的数字传输系统,该接收机包括用于从发送信道失真的接收信号的采样值(6)的序列中减去状态估计发送的二进制符号的均衡器 序列估计方法或缩减状态单符号估计方法(11)。 为了提供具有高可靠性的接收机以及估计方法的明确的状态减少,最小相位替代系统(14)使得在采样值序列(6)中的已知训练序列(27)之后接收到的样本值变形 ),并且最大相位替代系统(14)使在已知训练序列(27)之前接收的采样值(6)变形,并以相反的顺序进行处理,以形成接收信号的估计(11) 。 通过状态减少而减少并用于估计的脉冲响应的数目系数使得估计不准确。 在最小相位系统中,替代系统的脉冲响应的第一系数具有不变频率响应的最大能量。 当以这种方式变换的这些系数用于状态减少时,几乎所有信息都用于估计。 这实现了当使用所有状态时实现的序列估计的高可靠性。