Spread spectrum communication system
    1.
    发明授权
    Spread spectrum communication system 失效
    扩频通信系统

    公开(公告)号:US4930139A

    公开(公告)日:1990-05-29

    申请号:US359206

    申请日:1989-05-31

    摘要: The spread spectrum digital communication system includes data input devices for generating digital information signals to be transmitted using radio signals. A chip stream generator converts the data bits into chip streams that are either complemented or not complemented via an exclusive-OR gate, depending on the data bits. A scrambler further randomizes the chip stream for transmission. The receiver includes a descrambler and a correlator or digital matched filter for detecting the data signal. A modified receiver includes a sampler for sampling the scrambled signal at a rate which is the multiple of the chip rate thereby eliminating any need for recovering the chip clock. Another modified version includes a receiver having means for generating multi-level signals indicating the quality of the probable detection.

    Remote control system, components and methods
    2.
    发明授权
    Remote control system, components and methods 失效
    遥控系统,组件和方法

    公开(公告)号:US4932037A

    公开(公告)日:1990-06-05

    申请号:US386583

    申请日:1989-07-27

    IPC分类号: H02J13/00

    摘要: A method of communicating digital information as a stream of binary chip values impressed on a transmitted signal during a series of discrete transmitter chip intervals. During a preamble period, the transmitter provides a predetermined transmitter clock signal having a series of different values during a series of crumb intervals, each such crumb interval being a rational fraction of one transmitter chip interval. The receiver generates plural series of receiver chip intervals offset in time from one another. During the preamble period, the receiver subdivides each chip interval of each such series into receiver crumb intervals. The receiver selects one series of receiver chip intervals for which the values of the detected signal best match a template corresponding to the transmitter clock signal. This selected series of receiver chip intervals is the series best synchronized with the transmitter chip intervals. After the preamble period, the receiver recovers the binary chip values by assigning values to successive intervals in the selected series of receiver chip intervals according to the value of the detected signal for each interval in that selected series.

    摘要翻译: 在一系列离散的发射机码片间隔期间,将数字信息作为二进制码片流的数据传送给发射信号的方法。 在前导码周期期间,发射机提供在一系列碎片间隔期间具有一系列不同值的预定发射机时钟信号,每个这样的碎片间隔是一个发射机码片间隔的有理分数。 接收器产生在时间上彼此偏移的多个接收器码片间隔序列。 在前导码周期期间,接收机将每个这样的系列的每个码片间隔细分为接收机碎片间隔。 接收机选择一个接收码片间隔,其中检测信号的值与发射机时钟信号对应的模板最匹配。 这个选定的接收芯片间隔系列是与发射机芯片间隔最佳同步的系列。 在前导码周期之后,接收机通过根据所选序列中的每个间隔的检测信号的值,在所选择的接收机码片间隔序列中的连续间隔分配值来恢复二进制码片值。

    Apparatus and method for sensing with triangulation and time-of-flight for use in an actuatable occupant restraint system
    5.
    发明授权
    Apparatus and method for sensing with triangulation and time-of-flight for use in an actuatable occupant restraint system 失效
    用于在可致动的乘员约束系统中使用的三角测量和飞行时间感测的装置和方法

    公开(公告)号:US06236035B1

    公开(公告)日:2001-05-22

    申请号:US09199684

    申请日:1998-11-25

    IPC分类号: G08B1318

    CPC分类号: B60R21/01538

    摘要: An apparatus (32) is preferably part of an occupant protection system (10), and the apparatus determines a characteristic of an object (70) that may be located on a seat (14) of a vehicle (12) for use in control of the system. The object (70) may be a vehicle occupant, and the preferred characteristic that is determined is distance between the object and an instrument panel (22) of the vehicle (12). An emitter array (36) and a detector array (50) are located on the instrument panel (22). Each emitter (40) emits a beam (42) along a different path on which the object (70) may be located. Each detector (52) receives beams (42) emitted from the emitter array (36) that are reflected from the object (70). Each reflected beam received at the detector array (50) is indicative of distance between the instrument panel (22) and the object (70). An object sensor controller (34) determines relative intensities at each detector (52) of each reflected and received beam, and also determines time-of-flight of each reflected and received beam(s). The controller (34) processes each determined relative intensity and each determined time-of-flight to determine the object characteristic.

    摘要翻译: 装置(32)优选地是乘员保护系统(10)的一部分,并且该装置确定可位于车辆(12)的座椅(14)上的物体(70)的特性,以用于控制 系统。 物体(70)可以是车辆乘员,并且确定的优选特征是物体与车辆(12)的仪表板(22)之间的距离。 发射器阵列(36)和检测器阵列(50)位于仪表板(22)上。 每个发射器(40)沿着物体(70)可以位于其上的不同路径发射光束(42)。 每个检测器(52)接收从发射器阵列(36)发射的从物体(70)反射的光束(42)。 在检测器阵列(50)处接收的每个反射光束指示仪表板(22)和物体(70)之间的距离。 对象传感器控制器(34)确定每个反射和接收光束的每个检测器(52)处的相对强度,并且还确定每个反射和接收光束的飞行时间。 控制器(34)处理每个确定的相对强度和每个确定的飞行时间以确定对象特征。

    Charge-coupled device for spectroscopic detection
    7.
    发明授权
    Charge-coupled device for spectroscopic detection 失效
    用于光谱检测的电荷耦合器件

    公开(公告)号:US5432335A

    公开(公告)日:1995-07-11

    申请号:US189579

    申请日:1994-03-14

    IPC分类号: G01J3/28 H04N3/14

    CPC分类号: G01J3/2803

    摘要: A CCD comprises a sensing array, a readout register extending adjacent an edge of the sensing array, and an output cell at an output end of the readout register. The output cell has first and second sub-cells with the first sub-cell being between the readout register and the second sub-cell. The first sub-cell of the output cell is of lower capacity than the second sub-cell and is separated from the second sub-cell by a potential barrier.

    摘要翻译: CCD包括感测阵列,与感测阵列的边缘相邻延伸的读出寄存器,以及在读出寄存器的输出端处的输出单元。 输出单元具有第一和第二子单元,其中第一子单元位于读出寄存器和第二子单元之间。 输出单元的第一子单元具有比第二子单元低的容量,并且通过势垒与第二子单元分离。

    Remotely actuated light
    8.
    发明授权
    Remotely actuated light 失效
    遥控灯

    公开(公告)号:US5712615A

    公开(公告)日:1998-01-27

    申请号:US514282

    申请日:1995-08-11

    摘要: A lighting system comprising a selectively operable light source, RF receiver for reproducing a received pulsed RF signal. Means for determining whether the reproduced RF signal is within an acceptable range of asymmetric patterns of "on" pulse times followed by "off" times selected to include a plurality of different asymmetric patterns and operating means for the light source for a selected period of time when the determining means determine that the reproduced RF signal is within acceptable range.

    摘要翻译: 一种照明系统,包括可选择操作的光源,用于再现接收到的脉冲RF信号的RF接收器。 用于确定再现的RF信号是否在选择为包括多个不同不对称图案的“关闭”时间的“开”时间的非对称图案的可接受范围内的可接受范围内,以及用于所述光源的选定时间段的操作装置 当确定装置确定再现的RF信号在可接受的范围内时。

    Remotely actuated door lock light
    9.
    发明授权
    Remotely actuated door lock light 失效
    遥控门锁灯

    公开(公告)号:US5535104A

    公开(公告)日:1996-07-09

    申请号:US514281

    申请日:1995-08-11

    IPC分类号: E05B17/10

    CPC分类号: E05B17/10

    摘要: A door lock assembly comprising a lock plug having a key receiving opening, selectively operable light source for illuminating the key receiving opening, RF receiver for reproducing a received pulsed RF signal and means for determining whether the reproduced RF signal is within an acceptable range of asymmetric patterns of "on" pulse times followed by "off" times selected to include a plurality of different asymmetric patterns and means for operating the light source means for a selected period of time when the determining means determines that the reproduced RF signal is within acceptable range.

    摘要翻译: 一种门锁组件,包括具有钥匙接收开口的锁定插头,用于照亮钥匙接收开口的选择性可操作的光源,用于再现接收到的脉冲RF信号的RF接收器和用于确定再现的RF信号是否在不对称的可接受范围内的装置 “开”脉冲时间的模式,随后是“关闭”时间,被选择为包括多个不同的不对称图案,以及用于在确定装置确定再现的RF信号在可接受范围内的选定时间段内操作光源装置的装置 。

    Wireless integrated voice-data communication system
    10.
    发明授权
    Wireless integrated voice-data communication system 失效
    无线集成语音数据通信系统

    公开(公告)号:US5142534A

    公开(公告)日:1992-08-25

    申请号:US599673

    申请日:1999-10-17

    摘要: A digital voice-data communication system having a base network control unit coupled to a plurality of fixed transceivers for providing communications to a plurality of portable sets. The base network control unit includes control means for permitting communication between the portable sets within the system, or between the portable sets and a larger external telecommunications network. The system employs frequency hopping, time division multiplexing and demand assigned multiple accessing to permit economy of fixed resources via multiple voice channels for each fixed station transceiver and relatively simple portable sets which may be hand held.

    摘要翻译: 一种数字语音数据通信系统,其具有耦合到多个固定收发器的基本网络控制单元,用于向多个便携式组提供通信。 基站网络控制单元包括用于允许系统内的便携式设备之间或便携式设备与更大的外部电信网络之间的通信的控制装置。 该系统采用跳频,时分多路复用和分配多次访问的需求,可以为每个固定站收发机和相对简单的便携式设备提供固定资源的经济性。