公开(公告)号：US08014753B2

公开(公告)日：2011-09-06

申请号：US10893216

申请日：2004-07-19

申请人： Ken L. Cheung ,  Chen-Huan Chiang ,  Kenneth Y. Ho ,  John A. Andersen ,  Bradford G. Van Treuren ,  Robert W. Barr ,  Victor J. Velasco ,  Dante De Rogatis

发明人： Ken L. Cheung ,  Chen-Huan Chiang ,  Kenneth Y. Ho ,  John A. Andersen ,  Bradford G. Van Treuren ,  Robert W. Barr ,  Victor J. Velasco ,  Dante De Rogatis

IPC分类号： H04M11/00

CPC分类号： H04W24/04 ,  H04W24/00 ,  H04W88/08

摘要： A distributed test architecture of transmitting boundary scan Test Access Port (TAP_signals over a serial channel is disclosed. The architecture facilitates the system testing and remote field update of distributed base stations in a wireless network. The distributed test architecture enables system testing as if the distributed units are on a backplane within the same chassis by creating a plurality of logical connections between the distributed unit and the test bus using a single bit fiber line and a five bit TAP test bus.

摘要翻译： 发布边界扫描测试访问端口（TAP_signals，通过串行通道）的分布式测试架构，该架构便于无线网络中分布式基站的系统测试和远程现场更新，分布式测试架构使系统测试成为分布式 通过使用单位光纤线路和五位TAP测试总线在分布式单元和测试总线之间创建多个逻辑连接，单元位于同一机箱内的背板上。

公开(公告)号：US4739214A

公开(公告)日：1988-04-19

申请号：US930245

申请日：1986-11-13

申请人： Robert W. Barr

发明人： Robert W. Barr

IPC分类号： H01J27/02 ,  H01J27/08 ,  H01J37/077 ,  H01J37/08 ,  H05H1/34

CPC分类号： H01J37/077

摘要： A dynamic electron emitter includes a cold cathode in a cathode chamber emitting electrons in a focussed beam at and through a small orifice into a receiving chamber containing an anode and which may be the chamber of an ion gun. The orifice size is critical in that it must be small enough to ensure a higher pressure in the cathode than in the receiving chamber yet large enough to pass therethrough a sufficiently large flux of electrons to accomplish the intended purpose of the electron stream.

摘要翻译： 动态电子发射器包括在阴极室中的冷阴极，其中的聚焦光束中的电子在小孔处并通过小孔，进入容纳阳极并且可以是离子枪室的接收室。 孔口尺寸是关键的，因为它必须足够小以确保阴极中比在接收室中更高的压力，但足够大以通过其中足够大的电子流以实现电子流的预期目的。