会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明授权
    • Optical switch array capable of bidirectional signal transfer between a
plurality of terminals
    • 光纤开关阵列能够在多个终端之间进行双向信号传输
    • US5227906A
    • 1993-07-13
    • US490442
    • 1990-03-08
    • Jun Tokumitsu
    • Jun Tokumitsu
    • H04Q3/52
    • H04Q3/528
    • An optical switch array is provided so as to connect a first group of M terminals capable of transmitting and receiving signals to and from a second group of N terminals, where M and N are respectively an integer of not less than 1.The optical switch array comprises first and second light-emitting devices, first and second light-receiving devices and first and second shutter arrays.The first and second light-emitting devices comprise M light sources driven in response to the signals input from the terminals of the first group and N light sources driven in response to the signals input from the terminals of the second group, respectively. The second light-emitting device is arranged in series with the first light-emitting device.The first and second light-receiving devices are arranged in a direction perpendicular to a predetermined direction in which the first and second light-emitting devices are arranged. The first and second light-receiving devices comprise M photodetectors for outputting the signals to the terminals of the first group and N photodetectors for outputting the signals to the terminals of the second group, respectively.The first and second shutter arrays are arranged in an optical path between the first light-emitting device and the second light receiving device and an optical path between the second light-emitting device and the first light-receiving device. The first and second shutter arrays each include at least one segment as a unit and each is constituted by a plurality of openable shutters arranged in units of segments when M.times.N segments arranged in a matrix form in the predetermined direction and the direction perpendicular to the predetermined direction are assumed.