Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2007-11-27
2007-11-27
Pert, Evan (Department: 2826)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S760000, C361S783000, C375S316000
Reexamination Certificate
active
11515763
ABSTRACT:
A tuner section is provided on one surface of a multilayered substrate, and a demodulating section on another surface of the multilayered substrate. The multilayered substrate further includes: an analog GND layer connected to the tuner section; a digital GND layer connected to the demodulating section; a shield GND layer which is provided between the analog GND layer and the digital GND layer; and insulation layers each provided (i) between the analog GND layer and shield GND layer, or (ii) between the digital GND layer and shield GND layer so as to electrically disconnect the shield GND layer from the analog GND layer and the digital GND layer. This allows the tuner section and the demodulating section to be respectively arranged on different surfaces of the substrate, for the purpose of downsizing of the receiving device, and yet allows the tuner section from being influenced by a harmonic signal generated in the demodulating section.
REFERENCES:
patent: 2006/0291178 (2006-12-01), Shih
patent: 5-14015 (1993-01-01), None
patent: 09-097993 (1997-04-01), None
patent: 10-197662 (1998-07-01), None
patent: 11-145570 (1999-05-01), None
patent: 2000-353895 (2000-12-01), None
patent: 2004-128288 (2004-04-01), None
Pert Evan
Sharp Kabushiki Kaisha
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