Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2002-12-18
2004-03-16
Chervinsky, Boris (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S719000, C361S818000, C174S016300, C174S034000
Reexamination Certificate
active
06707675
ABSTRACT:
BACKGROUND
Electromagnetic interference ‘EMI’ is unintentional interference emitted by electronic equipment. EMI can interfere with external equipment such as radios, televisions and computers. EMI is also capable of interfering with circuitry within the unit containing the EMI-generating electronic component. As used herein, the term electromagnetic interference ‘EMI’ refers to interfering electromagnetic energy of any wavelength.
EMI has increased as electronic components and their assemblies have become faster and more compact. Modern digital circuits are capable of generating and processing signals with rise times as short as two nanoseconds. These signals substantially increase the speed of operation of circuits; however, they are also natural sources of wide spectrum EMI. One of the most troubling EMI problems is how to contain the ‘noise’ to prevent these extremely fast digital circuits from interfering with the operation of other digital circuits positioned nearby.
SUMMARY
Methods and apparatus for containing electromagnetic interference disclosed herein may include: providing a circuit board comprising a first surface and a socket, the socket being formed on the first surface; providing an assembly comprising an electronic component that generates the electromagnetic interference; connecting the electronic component to the socket; providing a cage comprising at least one gasket; and positioning the cage adjoining the circuit board with the assembly attached thereto.
REFERENCES:
patent: 5014160 (1991-05-01), McCoy, Jr.
patent: 5030793 (1991-07-01), McCarthy
patent: 5202815 (1993-04-01), Le Boennec et al.
patent: 5638259 (1997-06-01), McCarthy et al.
patent: 5740013 (1998-04-01), Roesner et al.
patent: 5774344 (1998-06-01), Casebolt
patent: 5880930 (1999-03-01), Wheaton
patent: 5928076 (1999-07-01), Clements et al.
patent: 6061235 (2000-05-01), Cromwell et al.
patent: 6084178 (2000-07-01), Cromwell
patent: 6121545 (2000-09-01), Peng et al.
patent: 6122167 (2000-09-01), Smith et al.
patent: 6137051 (2000-10-01), Bundza
patent: 6166908 (2000-12-01), Samaras et al.
patent: 6198630 (2001-03-01), Cromwell
patent: 5928076 (2001-04-01), Clements et al.
patent: 6324075 (2001-11-01), Unrein et al.
patent: 6362977 (2002-03-01), Tucker et al.
patent: 6387523 (2002-05-01), Bunyan et al.
patent: 6411522 (2002-06-01), Frank, Jr. et al.
patent: 6442045 (2002-08-01), Goodwin et al.
patent: 6451374 (2002-09-01), Watchko et al.
patent: 6501018 (2002-12-01), Mayer
patent: 6545871 (2003-04-01), Ramspacher et al.
Augustin Thomas J.
Barsun Stephan K.
Hahn Steven R.
Robertus Todd D.
Wilson Jeremy I.
Chervinsky Boris
Hewlett--Packard Development Company, L.P.
LandOfFree
EMI containment device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with EMI containment device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and EMI containment device and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3200175