发明授权
US5485081A Test point reduction system for a printed circuit board test system
失效
用于印刷电路板测试系统的测试点降低系统
- 专利标题: Test point reduction system for a printed circuit board test system
- 专利标题(中): 用于印刷电路板测试系统的测试点降低系统
-
申请号: US883160申请日: 1992-05-14
-
公开(公告)号: US5485081A公开(公告)日: 1996-01-16
- 发明人: Robert E. Whitehead , Evan J. Evans , Stephen J. Foster
- 申请人: Robert E. Whitehead , Evan J. Evans , Stephen J. Foster
- 申请人地址: TX Dallas
- 专利权人: Electronic Packaging Co.
- 当前专利权人: Electronic Packaging Co.
- 当前专利权人地址: TX Dallas
- 主分类号: G01R31/28
- IPC分类号: G01R31/28 ; H05K1/00 ; H05K1/02 ; H05K1/11 ; H05K3/00 ; G06F3/06
摘要:
A system for reducing the number of points to be tested on a printed circuit board where the printed circuit board includes a plurality of network traces each having end points and a plurality of pads provides for the identification of the end points of each network trace of the plurality of network traces. Certain ones of the plurality of network traces network located within a predetermined distance of one another are grouped to form a plurality of groups of network traces. The identified end points of the grouped network traces are connected together within each group of network traces to form a continuous trace having one pair of end points for each group of network traces. The end points are used for testing the printed circuit board.
公开/授权文献
- US6151353A Pre-acquisition frequency offset removal in a GPS receiver 公开/授权日:2000-11-21
信息查询