G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 33/02 (2006.01) G11B 7/12 (2006.01) G11B 33/14 (2006.01) H01S 5/022 (2006.01) H05K 9/00 (2006.01) G11B 7/09 (2006.01) G11B 17/04 (2006.01) G11B 19/00 (2006.01) G11B 20/10 (2006.01) G11B 20/12 (2006.01) G11B 20/18 (2006.01) G11B 25/04 (2006.01)
Patent
CA 2170971
An apparatus for the suppression of electromagnetic emissions from an electronicdevice. The apparatus includes a die cast metallic container having a continuous wall, a shoulder formed on the continuous wall, a plurality of rounded corners, and a neck portion. The neck portion and shoulder mate with a deep drawn metallic cap. A source of electromagnetic emissions is disposed in the interior space defined by the container and the cap, and a flex strip source passes through a groove formed in an external wall of the container to supply the source. The container is adapted for use in an optical disc system and provides a mount for a semiconductor laser modulated at a radio frequency on the order of 450 MHz. The container also holds auxiliary electronics. A conductive tape seals the assembly so that electromagnetic emissions of the laser are confined within the interior space.
Davis Marvin Benjamin
Schell David Louis
Discovision Associates
Smart & Biggar
LandOfFree
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