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公开(公告)号:US4995053A
公开(公告)日:1991-02-19
申请号:US514181
申请日:1990-04-25
IPC分类号: H02J13/00
CPC分类号: H02J13/0075 , G05B2219/21047 , G05B2219/24167 , G05B2219/25155 , G05B2219/25188 , Y02B70/3266 , Y02B90/2653 , Y04S20/242 , Y04S40/126
摘要: A system for remote control of electrical components in a building or an electrical appliance provides control of electric power flow in response to spread spectrum radio signals propagated through free space within the building. The spread spectrum signal receiver may be mounted entirely within a junction box of the building wiring or entirely within an appliance housing. The transmitter need not be connected to the building or appliance electrical wiring.
摘要翻译: 用于远程控制建筑物或电气设备中的电气部件的系统响应于通过建筑物内的自由空间传播的扩展频谱无线电信号来提供电力流量的控制。 扩频信号接收机可以完全安装在建筑物布线的接线盒内,或者完全在设备外壳内。 变送器不需要连接到建筑物或器具电气接线。
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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
CPC分类号: H02J13/0075 , G05B2219/21047 , G05B2219/24167 , G05B2219/25155 , G05B2219/25188
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。
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公开(公告)号:US4864588A
公开(公告)日:1989-09-05
申请号:US13577
申请日:1987-02-11
CPC分类号: H02J13/0075 , G05B2219/21047 , G05B2219/24167 , G05B2219/25155 , G05B2219/25188
摘要: A remote control system utilizing spread-spectrum techniques. The system is particularly suitable for control of electrical wiring devices in a building and/or appliances.
摘要翻译: 一种利用扩频技术的遥控系统。 该系统特别适用于控制建筑物和/或器具中的电气接线装置。
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