公开(公告)号：US6028845A

公开(公告)日：2000-02-22

申请号：US754183

申请日：1996-11-22

申请人： Atsuo Serikawa ,  Yasuhiro Saito ,  Yuji Maeda ,  Satoshi Kasuya

发明人： Atsuo Serikawa ,  Yasuhiro Saito ,  Yuji Maeda ,  Satoshi Kasuya

IPC分类号： H04J3/14 ,  G08C15/00 ,  H04B3/46 ,  H04B17/00 ,  H04J3/06 ,  H04J3/24 ,  H04L1/24 ,  H04L7/00

CPC分类号： H04L1/243

摘要： A communication-line-quality measuring system includes transmission and terminal equipment. Transmission equipment has a first frame assembling part transmitting a down-link multiplexed frame signal to a down-link line having a first frequency, and a first frame disassembling part disassembling an up-link multiplexed frame signal transmitted through an up-link line having a second frequency. Terminal equipment has a second frame disassembling part disassembling the down-link multiplexed frame signal, and a second frame assembling part transmitting the up-link multiplexed frame signal obtained by frame-multiplexing an output signal of the subscriber unit with a control signal, to the up-link line. A pattern generation part in the first frame assembling part provides a test signal to an available channel of signal frames in the down-link multiplexed frame signal. A loop-back part between the second frame disassembling part and the frame assembling part loops back the test signal derived from the down-link multiplexed frame signal in the second frame disassembling part to the second frame assembling part. The second frame assembling part provides the test signal in the up-link multiplexed frame signal to transmit to the transmission equipment. A comparing part in the transmission equipment compares the test signal in the up-link multiplexed frame signal, which is looped back by a control of the loop-back part, with a reference signal the same as the test signal generated in the pattern generation part.

摘要翻译： 通信线质量测量系统包括传输和终端设备。 传输设备具有将下行链路多路复用帧信号发送到具有第一频率的下行链路线的第一帧组装部分，以及分解通过上行链路线路发送的上行链路多路复用帧信号的第一帧拆卸部分， 第二频率。 终端设备具有拆卸下行链路多路复用帧信号的第二帧拆卸部分，以及将通过将用户单元的输出信号进行帧多路复用而获得的上行链路复用帧信号的控制信号发送到第二帧组装部分 上行线。 第一帧组合部分中的模式生成部分向下行链路复用帧信号中的信号帧的可用信道提供测试信号。 第二帧分解部与帧组装部之间的环回部将从第二帧分解部的下行链路复用帧信号导出的测试信号回送到第二帧组装部。 第二帧组装部分在上行链路多路复用帧信号中提供测试信号，以传输到传输设备。 传输设备中的比较部分将通过环回部分的控制环回的上行链路复用帧信号中的测试信号与在模式生成部分中生成的测试信号相同的参考信号进行比较 。

公开(公告)号：US4922088A

公开(公告)日：1990-05-01

申请号：US247391

申请日：1988-09-21

申请人： Satoshi Kasuya

发明人： Satoshi Kasuya

IPC分类号： F21S11/00 ,  F24J2/16 ,  F24J2/38 ,  F24J2/54 ,  G01S3/786

CPC分类号： F24J2/542 ,  F21S11/00 ,  F24J2/16 ,  F24J2/38 ,  G01S3/7861 ,  F24J2002/5451 ,  Y02E10/47

摘要： An automatic solar lighting apparatus having a reflecting means for reflecting the sunlight and a solar following sensor composed of an X-shape cross member having four side grooves, a light shielding top plate disposed on the front end of the X-shape cross member, and photosensors located in the side grooves of the X-shape cross member. The solar following sensor is controlled to be always pointed toward the sun, and the reflecting means can automatically be driven so as to reflect and direct the sunlight toward a prescribed portion for lighting.