Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
Reexamination Certificate
2005-04-05
2005-04-05
Tran, Pablo N. (Department: 2685)
Telecommunications
Receiver or analog modulated signal frequency converter
Noise or interference elimination
C455S090300, C455S347000, C455S575100
Reexamination Certificate
active
06876841
ABSTRACT:
A communication apparatus including a radio frequency (RF) circuit module can be reduced in the number of components therefor to reduce the cost for its components and to simplify its fabrication process and thus reduce the cost for manufacturing the same while the RF circuit module can also be shielded reliably. The RF circuit module includes a printed circuit board having an upper surface with a circuit component mounted thereto and a lower surface provided with a shielding conductor of metal. The printed circuit board is fit into a shielding frame to assemble the RF circuit module. The RF circuit module is then turned over and thus mounted on that upper surface of a mother board which is provided with conductors of metal. Such conductors of metal and the frame can shield the RF circuit module.
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Sharp Kabushiki Kaisha
Tran Pablo N.
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