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    • 1. 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。
    • 6. 发明申请
    • Nonlinear precoding method for a digital broadcast channel
    • 数字广播频道的非线性预编码方法
    • US20060198459A1
    • 2006-09-07
    • US10564832
    • 2004-07-07
    • Robert FischerChristoph Windpassinger
    • Robert FischerChristoph Windpassinger
    • H04L1/02
    • H04L25/4975H04L1/0618H04L25/03343H04L2025/0342
    • Several subscriber signals are transmitted simultaneously and at the same frequency by a central transmitter to several decentralized receivers which do not cooperate with each other, by digital message transmission in a broadcast channel. A common transmission signal, which enables an error-free individual reception, should be generated with knowledge of all subscriber signals and of the current transmission conditions, by signal preprocessing methods on the transmission side. Known nonlinear precoding methods totally suppress the interference signals, so that the channel diversity cannot be used. In the claimed precoding method, the occurring interference signals are, on the contrary, taken into account. On the basis of a modulo arithmetic calculation, the transmission channel is not totally equalized, but virtually divided, so that the transmission of the subscriber signals is continued periodically; the signals are selected according to the minimal transmission power and pre-equalized, in a linear manner, and the residual interferences, still remaining between the subscriber signals, may assume special values from a preset set of values. The set of values is selected, so that the interference signals of the other subscribers are also merely reflected in the otherwise already existing periodic continuation and can be suppressed or used as required by a modulo decision, on the reception side.
    • 通过广播频道中的数字消息传输,多个用户信号由中央发射机同时传输,并以相同的频率被传输到不彼此协作的若干分散式接收机。 通过发送侧的信号预处理方法,可以利用所有用户信号和当前传输条件的知识来生成能够实现无错误的单独接收的公共传输信号。 已知的非线性预编码方法完全抑制干扰信号,使得不能使用信道分集。 在所要求的预编码方法中,相反地考虑了所发生的干扰信号。 在模运算的基础上,传输信道并不完全相等,而是虚拟分割,使得用户信号的传输周期性地继续; 根据最小传输功率选择信号并以线性方式进行预均衡,并且仍然保留在用户信号之间的残留干扰可以从预设的一组值采取特殊值。 选择这组值,使得其他用户的干扰信号也仅仅反映在另外已经存在的周期性继续中,并且可以在接收侧根据模决定的要求被抑制或使用。
    • 9. 发明授权
    • Remote-control access control device and method for operating the same
    • 遥控门禁控制装置及其操作方法
    • US5552641A
    • 1996-09-03
    • US300480
    • 1994-09-02
    • Robert FischerJohannes IlgChristian SchneiderUlrich Schrey
    • Robert FischerJohannes IlgChristian SchneiderUlrich Schrey
    • B60R25/04B60R25/40E05B85/00G07C9/00B60R25/00
    • G06K19/0712B60R25/04B60R25/406G06K19/0707G07C9/00309E05B85/01G07C2009/00357G07C2009/00484G07C2009/00587G07C2009/00793
    • A remote-control access control device, particularly for motor vehicles, includes a stationary transmitter and receiver unit responding to actuation of tripping means for transmitting a question code signal, receiving an answer code signal, and furnishing an unlocking signal to an unlocking unit if the answer code signal matches a command code signal. A portable transponder has a receiver receiving the question code signal and a transmitter transmitting the answer code signal. The question code signal is repeatedly transmitted if no answer code signal has been received in response to an initial transmission, and a signal parameter is modified upon transmission of the answer code signal as a function of a field intensity of the question code signal or of a battery voltage of the transponder. Alternatively, a signal parameter is modified when the answer code signal is transmitted if an information content of the question code signal indicates an emergency operation state. As another alternative, the transmitter and receiver unit has both a transmission channel for receiving signals of low field intensity and a transmission channel for receiving signals of high field intensity. A method is also provided for operating the access control device.
    • 远程控制访问控制设备,特别是用于机动车辆的远程控制访问控制设备包括:固定发射器和接收器单元,其响应于用于发送问号码信号的跳闸装置的动作,接收应答码信号,以及如果解锁单元提供解锁信号 应答码信号匹配命令码信号。 便携式应答器具有接收问题码信号的接收器和发送应答码信号的发射机。 如果没有接收到响应于初始传输的应答码信号,则重复发送问题码信号,并且在作为问题码信号的场强度的函数的应答码信号发送时对信号参数进行修改, 应答器的电池电压。 或者,如果问题码信号的信息内容指示紧急操作状态,则当应答码信号被发送时,修改信号参数。 作为另一替代方案,发射机和接收机单元具有用于接收低场强信号的传输信道和用于接收高场强信号的传输信道。 还提供了一种用于操作访问控制装置的方法。