公开(公告)号：WO1992006552A1

公开(公告)日：1992-04-16

申请号：PCT/US1991007133

申请日：1991-09-27

Applicant: MOTOROLA LIGHTING, INC.

Inventor： MOTOROLA LIGHTING, INC. ,  STEVENS, Carlile, R.

IPC: H04M11/04

CPC classification number: H04B3/542 ,  H04B2203/542 ,  H04B2203/5458

Abstract: Data is transmitted on a power line (15) as a momentary interruption of the power at or near the zero crossing of the current. The interruption is preferably a small fraction of the period of the frequency of the power line. The data is transmitted only to those devices in series circuit with the transmitter. The transmitter (13) combines 60 Hz and 120 Hz clock signals with data from a shift register to interrupt current in a predetermined pattern, in which an interruption of both the positive going and negative going zero crossings define a logic "1" and the absence of interruptions is a logic "0". A data prefix identifies succeeding bits as data. The receiver (17) produces a pulse width modulated signal in response to the data.

Abstract translation: 数据在电力线（15）上传输，作为当前电流过零点附近的功率的瞬间中断。 中断优选是电力线频率周期的一小部分。 数据仅传输到与发射机串联电路的那些设备。 发射机（13）将60Hz和120Hz时钟信号与来自移位寄存器的数据组合成以预定模式中断电流，其中正向和负向过零点的中断定义逻辑“1”，并且不存在 的中断是逻辑“0”。 数据前缀标识后续位作为数据。 接收器（17）响应于数据产生脉宽调制信号。